15d06d1741cc8b5495da9c79c6f630e33060e80c73da9666500f6f0bdf5ff259

General

Target

2022-02-06 build_dl.exe
Size

3.9MB
MD5

095715a96975ef7b9e17d0a39739e0cc
SHA1

aa090944875fb9bd5b1e8b3775592eea5ceeb186
SHA256

15d06d1741cc8b5495da9c79c6f630e33060e80c73da9666500f6f0bdf5ff259
SHA512

ab76c374c995501ef57c4f46602e0df16188ccb6f69bb4c9c84073e48c664000912353a47ed5758c48735c64ca1167f73b02c41d4cfefea9978e3a219c12ce11

Score

9^/10

evasion persistence spyware stealer themida trojan

Malware Config

Signatures

Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs
evasion

Query Registry
T1012

Virtualization/Sandbox Evasion
T1497
Downloads MZ/PE file
Drops file in Drivers directory 1 IoCs

Processes:

2022-02-06 build_dl.exe

description ioc process

File created C:\Windows\System32\drivers\etc\hosts 2022-02-06 build_dl.exe
Executes dropped EXE 2 IoCs

Processes:

1644371941.exe1644371963.exe

pid process

3832 1644371941.exe
540 1644371963.exe
Modifies Windows Firewall 1 TTPs
evasion

Modify Existing Service
T1031
Sets file to hidden 1 TTPs
Modifies file attributes to stop it showing in Explorer etc.
evasion

Hidden Files and Directories
T1158

description	ioc	process
File created	C:\Windows\System32\drivers\etc\hosts	2022-02-06 build_dl.exe

pid	process
3832	1644371941.exe
540	1644371963.exe

Checks BIOS information in registry 2 TTPs 2 IoCs

BIOS information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

Processes:

2022-02-06 build_dl.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	2022-02-06 build_dl.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	2022-02-06 build_dl.exe

Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081

Themida packer 7 IoCs

Detects Themida, an advanced Windows software protection system.

themida

Processes:

resource	yara_rule
behavioral2/memory/2280-130-0x00000000004F0000-0x0000000001092000-memory.dmp	themida
behavioral2/memory/2280-132-0x00000000004F0000-0x0000000001092000-memory.dmp	themida
behavioral2/memory/2280-133-0x00000000004F0000-0x0000000001092000-memory.dmp	themida
behavioral2/memory/2280-134-0x00000000004F0000-0x0000000001092000-memory.dmp	themida
behavioral2/memory/2280-135-0x00000000004F0000-0x0000000001092000-memory.dmp	themida
behavioral2/memory/2280-136-0x00000000004F0000-0x0000000001092000-memory.dmp	themida
behavioral2/memory/2280-137-0x00000000004F0000-0x0000000001092000-memory.dmp	themida

Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
spyware

Data from Local System
T1005

Credentials in Files
T1081

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

2022-02-06 build_dl.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-790714498-1549421491-1643397139-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\BCU = "C:\\Windows\\BCU.exe"	2022-02-06 build_dl.exe

Checks whether UAC is enabled 1 TTPs 1 IoCs
evasion trojan

System Information Discovery
T1082

Processes:

2022-02-06 build_dl.exe

description ioc process

Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA 2022-02-06 build_dl.exe
Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

Processes:

2022-02-06 build_dl.exe

pid process

2280 2022-02-06 build_dl.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	2022-02-06 build_dl.exe

pid	process
2280	2022-02-06 build_dl.exe

Drops file in Windows directory 4 IoCs

Processes:

2022-02-06 build_dl.exesvchost.exeattrib.exe

description	ioc	process
File created	C:\Windows\1644371963.exe	2022-02-06 build_dl.exe
File opened for modification	C:\Windows\ServiceProfiles\NetworkService\AppData\Local\Microsoft\Windows\DeliveryOptimization\State\keyValueLKG.dat	svchost.exe
File opened for modification	C:\Windows\BCU.exe	attrib.exe
File created	C:\Windows\1644371941.exe	2022-02-06 build_dl.exe

Checks processor information in registry 2 TTPs 2 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

Processes:

MusNotifyIcon.exe

description	ioc	process
Key opened	\Registry\Machine\HARDWARE\DESCRIPTION\System\CentralProcessor\0	MusNotifyIcon.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	MusNotifyIcon.exe

Gathers network information 2 TTPs 1 IoCs
Uses commandline utility to view network configuration.

System Information Discovery
T1082

Command-Line Interface
T1059

Processes:

ipconfig.exe

pid process

3464 ipconfig.exe
GoLang User-Agent 2 IoCs
Uses default user-agent string defined by GoLang HTTP packages.

Processes:

description flow ioc

HTTP User-Agent header 29 Go-http-client/1.1
HTTP User-Agent header 59 Go-http-client/1.1

pid	process
3464	ipconfig.exe

description	flow	ioc
HTTP User-Agent header	29	Go-http-client/1.1
HTTP User-Agent header	59	Go-http-client/1.1

Modifies data under HKEY_USERS 45 IoCs

Processes:

svchost.exe

description	ioc	process
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\DownloadMonthlyCdnBytes = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\DownloadMonthlyCacheHostBytes = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\BkDownloadRatePct = "45"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\UploadCount = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\NormalDownloadCount = "0"	svchost.exe
Key created	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization	svchost.exe
Key created	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Config	svchost.exe
Key created	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\MonthID = "2"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\DownlinkUsageBps = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\MemoryUsageKB = "4132"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Config\DODownloadMode = "1"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\UploadMonthlyLanBytes = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\DownloadMonthlyLinkLocalBytes = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Config\DownloadMode_BackCompat = "1"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\PriorityDownloadPendingCount = "0"	svchost.exe
Set value (str)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\CPUpct = "0.545955"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\DownloadMonthlyRateBkBps = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\DownloadMonthlyRateFrCnt = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Config\KVFileExpirationTime = "132890183684962028"	svchost.exe
Set value (str)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Config\Geo_EndpointFullUri = "https://geo.prod.do.dsp.mp.microsoft.com/geo"	svchost.exe
Key created	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Settings	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\DownloadMonthlyLanBytes = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\DownloadMonthlyGroupBytes = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\UploadRatePct = "100"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\PriorityDownloadCount = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\UplinkUsageBps = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\NormalDownloadPendingCount = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\UploadMonthlyInternetBytes = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\SwarmCount = "1"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\CDNConnectionCount = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\LANConnectionCount = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\InternetConnectionCount = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\DownlinkBps = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\DownloadMonthlyRateFrBps = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\DownloadMonthlyRateBkCnt = "0"	svchost.exe
Set value (str)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Config\GeoVersion_EndpointFullUri = "https://geover.prod.do.dsp.mp.microsoft.com/geoversion"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\LinkLocalConnectionCount = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\GroupConnectionCount = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\UplinkBps = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\FrDownloadRatePct = "90"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\MonthlyUploadRestriction = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\DownloadMonthlyInternetBytes = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\CacheSizeBytes = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\PeerInfoCount = "0"	svchost.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

powershell.exepowershell.exe

pid process

1980 powershell.exe
1980 powershell.exe
3724 powershell.exe
3724 powershell.exe
Suspicious behavior: RenamesItself 1 IoCs

Processes:

cmd.exe

pid process

1032 cmd.exe

pid	process
1980	powershell.exe
1980	powershell.exe
3724	powershell.exe
3724	powershell.exe

pid	process
1032	cmd.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

Processes:

powershell.exewhoami.exewhoami.exeWMIC.exepowershell.exeWMIC.exe

description	pid	process
Token: SeDebugPrivilege	1980	powershell.exe
Token: SeDebugPrivilege	2960	whoami.exe
Token: SeDebugPrivilege	3048	whoami.exe
Token: SeIncreaseQuotaPrivilege	1712	WMIC.exe
Token: SeSecurityPrivilege	1712	WMIC.exe
Token: SeTakeOwnershipPrivilege	1712	WMIC.exe
Token: SeLoadDriverPrivilege	1712	WMIC.exe
Token: SeSystemProfilePrivilege	1712	WMIC.exe
Token: SeSystemtimePrivilege	1712	WMIC.exe
Token: SeProfSingleProcessPrivilege	1712	WMIC.exe
Token: SeIncBasePriorityPrivilege	1712	WMIC.exe
Token: SeCreatePagefilePrivilege	1712	WMIC.exe
Token: SeBackupPrivilege	1712	WMIC.exe
Token: SeRestorePrivilege	1712	WMIC.exe
Token: SeShutdownPrivilege	1712	WMIC.exe
Token: SeDebugPrivilege	1712	WMIC.exe
Token: SeSystemEnvironmentPrivilege	1712	WMIC.exe
Token: SeRemoteShutdownPrivilege	1712	WMIC.exe
Token: SeUndockPrivilege	1712	WMIC.exe
Token: SeManageVolumePrivilege	1712	WMIC.exe
Token: 33	1712	WMIC.exe
Token: 34	1712	WMIC.exe
Token: 35	1712	WMIC.exe
Token: 36	1712	WMIC.exe
Token: SeIncreaseQuotaPrivilege	1712	WMIC.exe
Token: SeSecurityPrivilege	1712	WMIC.exe
Token: SeTakeOwnershipPrivilege	1712	WMIC.exe
Token: SeLoadDriverPrivilege	1712	WMIC.exe
Token: SeSystemProfilePrivilege	1712	WMIC.exe
Token: SeSystemtimePrivilege	1712	WMIC.exe
Token: SeProfSingleProcessPrivilege	1712	WMIC.exe
Token: SeIncBasePriorityPrivilege	1712	WMIC.exe
Token: SeCreatePagefilePrivilege	1712	WMIC.exe
Token: SeBackupPrivilege	1712	WMIC.exe
Token: SeRestorePrivilege	1712	WMIC.exe
Token: SeShutdownPrivilege	1712	WMIC.exe
Token: SeDebugPrivilege	1712	WMIC.exe
Token: SeSystemEnvironmentPrivilege	1712	WMIC.exe
Token: SeRemoteShutdownPrivilege	1712	WMIC.exe
Token: SeUndockPrivilege	1712	WMIC.exe
Token: SeManageVolumePrivilege	1712	WMIC.exe
Token: 33	1712	WMIC.exe
Token: 34	1712	WMIC.exe
Token: 35	1712	WMIC.exe
Token: 36	1712	WMIC.exe
Token: SeDebugPrivilege	3724	powershell.exe
Token: SeIncreaseQuotaPrivilege	400	WMIC.exe
Token: SeSecurityPrivilege	400	WMIC.exe
Token: SeTakeOwnershipPrivilege	400	WMIC.exe
Token: SeLoadDriverPrivilege	400	WMIC.exe
Token: SeSystemProfilePrivilege	400	WMIC.exe
Token: SeSystemtimePrivilege	400	WMIC.exe
Token: SeProfSingleProcessPrivilege	400	WMIC.exe
Token: SeIncBasePriorityPrivilege	400	WMIC.exe
Token: SeCreatePagefilePrivilege	400	WMIC.exe
Token: SeBackupPrivilege	400	WMIC.exe
Token: SeRestorePrivilege	400	WMIC.exe
Token: SeShutdownPrivilege	400	WMIC.exe
Token: SeDebugPrivilege	400	WMIC.exe
Token: SeSystemEnvironmentPrivilege	400	WMIC.exe
Token: SeRemoteShutdownPrivilege	400	WMIC.exe
Token: SeUndockPrivilege	400	WMIC.exe
Token: SeManageVolumePrivilege	400	WMIC.exe
Token: 33	400	WMIC.exe

Suspicious use of WriteProcessMemory 56 IoCs

Processes:

2022-02-06 build_dl.execmd.execmd.execmd.execmd.execmd.execmd.execmd.execmd.execmd.execmd.execmd.execmd.exe

description	pid	process	target process
PID 2280 wrote to memory of 1452	2280	2022-02-06 build_dl.exe	cmd.exe
PID 2280 wrote to memory of 1452	2280	2022-02-06 build_dl.exe	cmd.exe
PID 2280 wrote to memory of 1032	2280	2022-02-06 build_dl.exe	cmd.exe
PID 2280 wrote to memory of 1032	2280	2022-02-06 build_dl.exe	cmd.exe
PID 1452 wrote to memory of 1980	1452	cmd.exe	powershell.exe
PID 1452 wrote to memory of 1980	1452	cmd.exe	powershell.exe
PID 2280 wrote to memory of 1752	2280	2022-02-06 build_dl.exe	cmd.exe
PID 2280 wrote to memory of 1752	2280	2022-02-06 build_dl.exe	cmd.exe
PID 1752 wrote to memory of 1196	1752	cmd.exe	netsh.exe
PID 1752 wrote to memory of 1196	1752	cmd.exe	netsh.exe
PID 2280 wrote to memory of 2404	2280	2022-02-06 build_dl.exe	cmd.exe
PID 2280 wrote to memory of 2404	2280	2022-02-06 build_dl.exe	cmd.exe
PID 2404 wrote to memory of 2960	2404	cmd.exe	whoami.exe
PID 2404 wrote to memory of 2960	2404	cmd.exe	whoami.exe
PID 2280 wrote to memory of 1140	2280	2022-02-06 build_dl.exe	cmd.exe
PID 2280 wrote to memory of 1140	2280	2022-02-06 build_dl.exe	cmd.exe
PID 1140 wrote to memory of 3048	1140	cmd.exe	whoami.exe
PID 1140 wrote to memory of 3048	1140	cmd.exe	whoami.exe
PID 2280 wrote to memory of 2752	2280	2022-02-06 build_dl.exe	cmd.exe
PID 2280 wrote to memory of 2752	2280	2022-02-06 build_dl.exe	cmd.exe
PID 2752 wrote to memory of 1712	2752	cmd.exe	WMIC.exe
PID 2752 wrote to memory of 1712	2752	cmd.exe	WMIC.exe
PID 2280 wrote to memory of 3540	2280	2022-02-06 build_dl.exe	cmd.exe
PID 2280 wrote to memory of 3540	2280	2022-02-06 build_dl.exe	cmd.exe
PID 2280 wrote to memory of 3416	2280	2022-02-06 build_dl.exe	cmd.exe
PID 2280 wrote to memory of 3416	2280	2022-02-06 build_dl.exe	cmd.exe
PID 3416 wrote to memory of 3060	3416	cmd.exe	reg.exe
PID 3416 wrote to memory of 3060	3416	cmd.exe	reg.exe
PID 3540 wrote to memory of 3464	3540	cmd.exe	ipconfig.exe
PID 3540 wrote to memory of 3464	3540	cmd.exe	ipconfig.exe
PID 2280 wrote to memory of 2152	2280	2022-02-06 build_dl.exe	cmd.exe
PID 2280 wrote to memory of 2152	2280	2022-02-06 build_dl.exe	cmd.exe
PID 2280 wrote to memory of 2220	2280	2022-02-06 build_dl.exe	cmd.exe
PID 2280 wrote to memory of 2220	2280	2022-02-06 build_dl.exe	cmd.exe
PID 2220 wrote to memory of 3724	2220	cmd.exe	powershell.exe
PID 2220 wrote to memory of 3724	2220	cmd.exe	powershell.exe
PID 2280 wrote to memory of 2996	2280	2022-02-06 build_dl.exe	cmd.exe
PID 2280 wrote to memory of 2996	2280	2022-02-06 build_dl.exe	cmd.exe
PID 2996 wrote to memory of 400	2996	cmd.exe	WMIC.exe
PID 2996 wrote to memory of 400	2996	cmd.exe	WMIC.exe
PID 2280 wrote to memory of 1616	2280	2022-02-06 build_dl.exe	cmd.exe
PID 2280 wrote to memory of 1616	2280	2022-02-06 build_dl.exe	cmd.exe
PID 2280 wrote to memory of 1272	2280	2022-02-06 build_dl.exe	cmd.exe
PID 2280 wrote to memory of 1272	2280	2022-02-06 build_dl.exe	cmd.exe
PID 1272 wrote to memory of 1784	1272	cmd.exe	WMIC.exe
PID 1272 wrote to memory of 1784	1272	cmd.exe	WMIC.exe
PID 2280 wrote to memory of 3476	2280	2022-02-06 build_dl.exe	cmd.exe
PID 2280 wrote to memory of 3476	2280	2022-02-06 build_dl.exe	cmd.exe
PID 3476 wrote to memory of 3832	3476	cmd.exe	1644371941.exe
PID 3476 wrote to memory of 3832	3476	cmd.exe	1644371941.exe
PID 3476 wrote to memory of 3832	3476	cmd.exe	1644371941.exe
PID 2280 wrote to memory of 640	2280	2022-02-06 build_dl.exe	cmd.exe
PID 2280 wrote to memory of 640	2280	2022-02-06 build_dl.exe	cmd.exe
PID 640 wrote to memory of 540	640	cmd.exe	1644371963.exe
PID 640 wrote to memory of 540	640	cmd.exe	1644371963.exe
PID 640 wrote to memory of 540	640	cmd.exe	1644371963.exe

Views/modifies file attributes 1 TTPs 1 IoCs
evasion

Hidden Files and Directories
T1158

Processes:

attrib.exe

pid process

4056 attrib.exe

pid	process
4056	attrib.exe

C:\Users\Admin\AppData\Local\Temp\2022-02-06 build_dl.exe
"C:\Users\Admin\AppData\Local\Temp\2022-02-06 build_dl.exe"
1⤵
- Drops file in Drivers directory
- Checks BIOS information in registry
- Adds Run key to start application
- Checks whether UAC is enabled
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Drops file in Windows directory
- Suspicious use of WriteProcessMemory
PID:2280

C:\Windows\system32\cmd.exe
cmd /C "powershell -Command Add-MpPreference -ExclusionPath C:\Users\Admin\AppData\Local\Temp"
2⤵
- Suspicious use of WriteProcessMemory
PID:1452

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
powershell -Command Add-MpPreference -ExclusionPath C:\Users\Admin\AppData\Local\Temp
3⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1980

C:\Windows\system32\cmd.exe
cmd /Q /C move /Y "C:\Users\Admin\AppData\Local\Temp\2022-02-06 build_dl.exe" C:\Windows\BCU.exe
2⤵
- Suspicious behavior: RenamesItself
PID:1032

C:\Windows\system32\cmd.exe
cmd /C "netsh advfirewall firewall add rule name=\"BCU\" dir=in action=allow program=\"C:\Users\Admin\AppData\Local\Temp\2022-02-06 build_dl.exe\" enable=yes"
2⤵
- Suspicious use of WriteProcessMemory
PID:1752

C:\Windows\system32\netsh.exe
netsh advfirewall firewall add rule name=\"BCU\" dir=in action=allow program=\"C:\Users\Admin\AppData\Local\Temp\2022-02-06 build_dl.exe\" enable=yes
3⤵
PID:1196

C:\Windows\system32\cmd.exe
cmd /C whoami
2⤵
- Suspicious use of WriteProcessMemory
PID:2404

C:\Windows\system32\whoami.exe
whoami
3⤵
- Suspicious use of AdjustPrivilegeToken
PID:2960

C:\Windows\system32\cmd.exe
cmd /C whoami
2⤵
- Suspicious use of WriteProcessMemory
PID:1140

C:\Windows\system32\whoami.exe
whoami
3⤵
- Suspicious use of AdjustPrivilegeToken
PID:3048

C:\Windows\system32\cmd.exe
cmd /C "wmic cpu get name"
2⤵
- Suspicious use of WriteProcessMemory
PID:2752

C:\Windows\System32\Wbem\WMIC.exe
wmic cpu get name
3⤵
- Suspicious use of AdjustPrivilegeToken
PID:1712

C:\Windows\system32\cmd.exe
cmd /Q /C reg add "HKCU\Software\Networking Service" /f
2⤵
- Suspicious use of WriteProcessMemory
PID:3416

C:\Windows\system32\reg.exe
reg add "HKCU\Software\Networking Service" /f
3⤵
PID:3060

C:\Windows\system32\cmd.exe
cmd /C "ipconfig //flushdns"
2⤵
- Suspicious use of WriteProcessMemory
PID:3540

C:\Windows\system32\ipconfig.exe
ipconfig //flushdns
3⤵
- Gathers network information
PID:3464

C:\Windows\system32\cmd.exe
cmd /C "attrib +S +H C:\Windows\BCU.exe"
2⤵
PID:2152

C:\Windows\system32\attrib.exe
attrib +S +H C:\Windows\BCU.exe
3⤵
- Drops file in Windows directory
- Views/modifies file attributes
PID:4056

C:\Windows\system32\cmd.exe
cmd /C "powershell -Command Add-MpPreference -ExclusionPath C:\Users\Admin\AppData\Roaming\Microsoft"
2⤵
- Suspicious use of WriteProcessMemory
PID:2220

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
powershell -Command Add-MpPreference -ExclusionPath C:\Users\Admin\AppData\Roaming\Microsoft
3⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3724

C:\Windows\system32\cmd.exe
cmd /C "wmic path win32_VideoController get name"
2⤵
- Suspicious use of WriteProcessMemory
PID:2996

C:\Windows\System32\Wbem\WMIC.exe
wmic path win32_VideoController get name
3⤵
- Suspicious use of AdjustPrivilegeToken
PID:400

C:\Windows\system32\cmd.exe
cmd /C ver
2⤵
PID:1616

C:\Windows\system32\cmd.exe
cmd /C "wmic path win32_VideoController get name"
2⤵
- Suspicious use of WriteProcessMemory
PID:1272

C:\Windows\System32\Wbem\WMIC.exe
wmic path win32_VideoController get name
3⤵
PID:1784

C:\Windows\system32\cmd.exe
cmd /C start C:\Windows\1644371941.exe
2⤵
- Suspicious use of WriteProcessMemory
PID:3476

C:\Windows\1644371941.exe
C:\Windows\1644371941.exe
3⤵
- Executes dropped EXE
PID:3832

C:\Windows\system32\cmd.exe
cmd /C start C:\Windows\1644371963.exe
2⤵
- Suspicious use of WriteProcessMemory
PID:640

C:\Windows\1644371963.exe
C:\Windows\1644371963.exe
3⤵
- Executes dropped EXE
PID:540

C:\Windows\system32\MusNotifyIcon.exe
%systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 13
1⤵
- Checks processor information in registry
PID:2004

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k NetworkService -p
1⤵
- Drops file in Windows directory
- Modifies data under HKEY_USERS
PID:1292

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Command-Line Interface

1

T1059

Persistence

Modify Existing Service

1

T1031

Hidden Files and Directories

2

T1158

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Virtualization/Sandbox Evasion

1

T1497

Hidden Files and Directories

2

T1158

Modify Registry

1

T1112

Credential Access

Credentials in Files

2

T1081

Discovery

Query Registry

3

T1012

Virtualization/Sandbox Evasion

1

T1497

System Information Discovery

4

T1082

Lateral Movement

Collection

Data from Local System

2

T1005

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\powershell.exe.log
MD5
d85ba6ff808d9e5444a4b369f5bc2730

SHA1
31aa9d96590fff6981b315e0b391b575e4c0804a

SHA256
84739c608a73509419748e4e20e6cc4e1846056c3fe1929a8300d5a1a488202f

SHA512
8c414eb55b45212af385accc16d9d562adba2123583ce70d22b91161fe878683845512a78f04dedd4ea98ed9b174dbfa98cf696370598ad8e6fbd1e714f1f249

Download Submit
C:\Windows\1644371941.exe
MD5
a543da3f43f931ca56bea6ac81eb0815

SHA1
44d3794cad034ea8666d8f60e1c3d6e3e8771ae1

SHA256
b7ca36e5ef33a32da7e256d4694738df05a52c72098868e9ab0eecf53b1818dc

SHA512
c8fa431bd747dad01637cfa3ae1ce562010f027be2b8fe304ba83571f5ad9b0feedabef99b2c98d01a91ad22aa091c85ca98db29b9d2abb95f2314478c8e3ede

Download Submit
C:\Windows\1644371941.exe
MD5
a543da3f43f931ca56bea6ac81eb0815

SHA1
44d3794cad034ea8666d8f60e1c3d6e3e8771ae1

SHA256
b7ca36e5ef33a32da7e256d4694738df05a52c72098868e9ab0eecf53b1818dc

SHA512
c8fa431bd747dad01637cfa3ae1ce562010f027be2b8fe304ba83571f5ad9b0feedabef99b2c98d01a91ad22aa091c85ca98db29b9d2abb95f2314478c8e3ede

Download Submit
C:\Windows\1644371963.exe
MD5
502e1937c846f43e90a7864c1e7071be

SHA1
dc869347d9d98857b63f8c5984f4287ec3a8f161

SHA256
125d09a3fb2bca601e2539cb465205fa66b9e6e20a8caa635c1e2f02628a277a

SHA512
4bc9695ae618a69196c2111c6ceea95f1a1563afc7fc66c9116aae813d011ed5fd1a3e582c8413720ccd0ef21c9592429471908d32c2e5a2d452537fda960adc

Download Submit
C:\Windows\1644371963.exe
MD5
502e1937c846f43e90a7864c1e7071be

SHA1
dc869347d9d98857b63f8c5984f4287ec3a8f161

SHA256
125d09a3fb2bca601e2539cb465205fa66b9e6e20a8caa635c1e2f02628a277a

SHA512
4bc9695ae618a69196c2111c6ceea95f1a1563afc7fc66c9116aae813d011ed5fd1a3e582c8413720ccd0ef21c9592429471908d32c2e5a2d452537fda960adc

Download Submit
memory/540-178-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/540-169-0x00000000025C0000-0x00000000025F9000-memory.dmp

Filesize
228KB

Download
memory/540-168-0x0000000000970000-0x000000000099B000-memory.dmp

Filesize
172KB

Download
memory/1980-142-0x00007FFB810D3000-0x00007FFB810D5000-memory.dmp

Filesize
8KB

Download
memory/1980-143-0x0000012444650000-0x0000012444652000-memory.dmp

Filesize
8KB

Download
memory/1980-144-0x0000012444653000-0x0000012444655000-memory.dmp

Filesize
8KB

Download
memory/1980-145-0x000001242C530000-0x000001242C552000-memory.dmp

Filesize
136KB

Download
memory/1980-148-0x0000012444656000-0x0000012444658000-memory.dmp

Filesize
8KB

Download
memory/1980-159-0x0000012444658000-0x0000012444659000-memory.dmp

Filesize
4KB

Download
memory/2280-132-0x00000000004F0000-0x0000000001092000-memory.dmp

Filesize
11.6MB

Download
memory/2280-135-0x00000000004F0000-0x0000000001092000-memory.dmp

Filesize
11.6MB

Download
memory/2280-133-0x00000000004F0000-0x0000000001092000-memory.dmp

Filesize
11.6MB

Download
memory/2280-130-0x00000000004F0000-0x0000000001092000-memory.dmp

Filesize
11.6MB

Download
memory/2280-134-0x00000000004F0000-0x0000000001092000-memory.dmp

Filesize
11.6MB

Download
memory/2280-131-0x00007FFBA0630000-0x00007FFBA0632000-memory.dmp

Filesize
8KB

Download
memory/2280-137-0x00000000004F0000-0x0000000001092000-memory.dmp

Filesize
11.6MB

Download
memory/2280-136-0x00000000004F0000-0x0000000001092000-memory.dmp

Filesize
11.6MB

Download
memory/3724-156-0x00000215D01D0000-0x00000215D01D2000-memory.dmp

Filesize
8KB

Download
memory/3724-160-0x00000215D01D8000-0x00000215D01D9000-memory.dmp

Filesize
4KB

Download
memory/3724-158-0x00000215D01D6000-0x00000215D01D8000-memory.dmp

Filesize
8KB

Download
memory/3724-157-0x00000215D01D3000-0x00000215D01D5000-memory.dmp

Filesize
8KB

Download
memory/3724-151-0x00007FFB810D3000-0x00007FFB810D5000-memory.dmp

Filesize
8KB

Download
memory/3832-170-0x0000000000010000-0x00000000005C7000-memory.dmp

Filesize
5.7MB

Download
memory/3832-171-0x0000000002700000-0x0000000002741000-memory.dmp

Filesize
260KB

Download
memory/3832-173-0x0000000000045000-0x0000000000060000-memory.dmp

Filesize
108KB

Download
memory/3832-172-0x0000000000033000-0x0000000000034000-memory.dmp

Filesize
4KB

Download
memory/3832-174-0x0000000000010000-0x00000000005C7000-memory.dmp

Filesize
5.7MB

Download
memory/3832-175-0x000000000023A000-0x000000000058F000-memory.dmp

Filesize
3.3MB

Download
memory/3832-176-0x0000000002750000-0x0000000002751000-memory.dmp

Filesize
4KB

Download
memory/3832-177-0x0000000000010000-0x00000000005C7000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads