1b6f69757ef23af5b07bfaf34a83115ab6a2c12abfe0c7ce693ab18373376b47

General

Target

1b6f69757ef23af5b07bfaf34a83115ab6a2c12abfe0c7ce693ab18373376b47.exe
Size

808KB
MD5

9028d8fdcf15ecc6533f998b82cfcae0
SHA1

676f28184518a99277d90255e21f3b6da0119b95
SHA256

1b6f69757ef23af5b07bfaf34a83115ab6a2c12abfe0c7ce693ab18373376b47
SHA512

1fd00a7ffe63771164d9ac66e38e49b9d518bbbe90f01fb58bee5769e4c44e1cc91fcf786ff57943626aded27cb2b275380e920adb7087ae0dfbf868de02888d
SSDEEP

3072:a18SouhTTtfiCXl+0LbLuO5aYd/5q6rsg2ZaZ/VuXQMul6mdoCom9QEst3FmcSDw:U8Yd4iaYd/5EkhTlBy3Fmcow

Score

10^/10

evasion persistence upx

Malware Config

Signatures

Modifies firewall policy service 2 TTPs 4 IoCs

evasion

Modify Registry

T1112

Modify Existing Service

T1031

description	ioc	Process
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List	1b6f69757ef23af5b07bfaf34a83115ab6a2c12abfe0c7ce693ab18373376b47.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile	1b6f69757ef23af5b07bfaf34a83115ab6a2c12abfe0c7ce693ab18373376b47.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications	1b6f69757ef23af5b07bfaf34a83115ab6a2c12abfe0c7ce693ab18373376b47.exe
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List\Microsoft Windows Hosting Service Login = "C:\\Users\\Admin\\AppData\\Roaming\\winlogon.exe"	1b6f69757ef23af5b07bfaf34a83115ab6a2c12abfe0c7ce693ab18373376b47.exe

Modifies Installed Components in the registry 2 TTPs 4 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Active Setup\Installed Components\{mCZHeGdd-MGXQ-Ukk4-fvKF-QbdYicFxzaFW}	1b6f69757ef23af5b07bfaf34a83115ab6a2c12abfe0c7ce693ab18373376b47.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Active Setup\Installed Components\{mCZHeGdd-MGXQ-Ukk4-fvKF-QbdYicFxzaFW}\StubPath = "C:\\Users\\Admin\\AppData\\Local\\Temp\\BZ8YL.exe"	1b6f69757ef23af5b07bfaf34a83115ab6a2c12abfe0c7ce693ab18373376b47.exe
Key created	\REGISTRY\MACHINE\Software\WOW6432Node\Microsoft\Active Setup\Installed Components\{mCZHeGdd-MGXQ-Ukk4-fvKF-QbdYicFxzaFW}	1b6f69757ef23af5b07bfaf34a83115ab6a2c12abfe0c7ce693ab18373376b47.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{mCZHeGdd-MGXQ-Ukk4-fvKF-QbdYicFxzaFW}\StubPath = "C:\\Users\\Admin\\AppData\\Local\\Temp\\BZ8YL.exe"	1b6f69757ef23af5b07bfaf34a83115ab6a2c12abfe0c7ce693ab18373376b47.exe

UPX packed file 5 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral2/memory/3544-135-0x0000000000400000-0x0000000000420000-memory.dmp	upx
behavioral2/memory/3544-137-0x0000000000400000-0x0000000000420000-memory.dmp	upx
behavioral2/memory/3544-138-0x0000000000400000-0x0000000000420000-memory.dmp	upx
behavioral2/memory/3544-140-0x0000000000400000-0x0000000000420000-memory.dmp	upx
behavioral2/memory/3544-145-0x0000000000400000-0x0000000000420000-memory.dmp	upx

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Control Panel\International\Geo\Nation	1b6f69757ef23af5b07bfaf34a83115ab6a2c12abfe0c7ce693ab18373376b47.exe

Adds Run key to start application 2 TTPs 8 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Microsoft Windows Hosting Service Login = "C:\\Users\\Admin\\AppData\\Roaming\\winlogon.exe"	1b6f69757ef23af5b07bfaf34a83115ab6a2c12abfe0c7ce693ab18373376b47.exe
Key created	\REGISTRY\MACHINE\Software\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\	1b6f69757ef23af5b07bfaf34a83115ab6a2c12abfe0c7ce693ab18373376b47.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Microsoft Windows Hosting Service Login = "C:\\Users\\Admin\\AppData\\Roaming\\winlogon.exe"	1b6f69757ef23af5b07bfaf34a83115ab6a2c12abfe0c7ce693ab18373376b47.exe
Key created	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Windows\CurrentVersion\Run	1b6f69757ef23af5b07bfaf34a83115ab6a2c12abfe0c7ce693ab18373376b47.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\QYSRQ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\BZ8YL.exe"	1b6f69757ef23af5b07bfaf34a83115ab6a2c12abfe0c7ce693ab18373376b47.exe
Key created	\REGISTRY\MACHINE\Software\WOW6432Node\Microsoft\Windows\CurrentVersion\Run	1b6f69757ef23af5b07bfaf34a83115ab6a2c12abfe0c7ce693ab18373376b47.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\TYWHvBYzBXR = "C:\\Users\\Admin\\AppData\\Local\\Temp\\BZ8YL.exe"	1b6f69757ef23af5b07bfaf34a83115ab6a2c12abfe0c7ce693ab18373376b47.exe
Key created	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Windows\CurrentVersion\Run\	1b6f69757ef23af5b07bfaf34a83115ab6a2c12abfe0c7ce693ab18373376b47.exe

Maps connected drives based on registry 3 TTPs 2 IoCs

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

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	1b6f69757ef23af5b07bfaf34a83115ab6a2c12abfe0c7ce693ab18373376b47.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0	1b6f69757ef23af5b07bfaf34a83115ab6a2c12abfe0c7ce693ab18373376b47.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1168 set thread context of 3544	1168	1b6f69757ef23af5b07bfaf34a83115ab6a2c12abfe0c7ce693ab18373376b47.exe	82

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Modifies data under HKEY_USERS 2 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Run\	1b6f69757ef23af5b07bfaf34a83115ab6a2c12abfe0c7ce693ab18373376b47.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Run\Microsoft Windows Hosting Service Login = "C:\\Users\\Admin\\AppData\\Roaming\\winlogon.exe"	1b6f69757ef23af5b07bfaf34a83115ab6a2c12abfe0c7ce693ab18373376b47.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1168	1b6f69757ef23af5b07bfaf34a83115ab6a2c12abfe0c7ce693ab18373376b47.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 1168 wrote to memory of 3544	1168	1b6f69757ef23af5b07bfaf34a83115ab6a2c12abfe0c7ce693ab18373376b47.exe	82
PID 1168 wrote to memory of 3544	1168	1b6f69757ef23af5b07bfaf34a83115ab6a2c12abfe0c7ce693ab18373376b47.exe	82
PID 1168 wrote to memory of 3544	1168	1b6f69757ef23af5b07bfaf34a83115ab6a2c12abfe0c7ce693ab18373376b47.exe	82
PID 1168 wrote to memory of 3544	1168	1b6f69757ef23af5b07bfaf34a83115ab6a2c12abfe0c7ce693ab18373376b47.exe	82
PID 1168 wrote to memory of 3544	1168	1b6f69757ef23af5b07bfaf34a83115ab6a2c12abfe0c7ce693ab18373376b47.exe	82
PID 1168 wrote to memory of 3544	1168	1b6f69757ef23af5b07bfaf34a83115ab6a2c12abfe0c7ce693ab18373376b47.exe	82
PID 1168 wrote to memory of 3544	1168	1b6f69757ef23af5b07bfaf34a83115ab6a2c12abfe0c7ce693ab18373376b47.exe	82
PID 1168 wrote to memory of 3544	1168	1b6f69757ef23af5b07bfaf34a83115ab6a2c12abfe0c7ce693ab18373376b47.exe	82
PID 1168 wrote to memory of 1848	1168	1b6f69757ef23af5b07bfaf34a83115ab6a2c12abfe0c7ce693ab18373376b47.exe	83
PID 1168 wrote to memory of 1848	1168	1b6f69757ef23af5b07bfaf34a83115ab6a2c12abfe0c7ce693ab18373376b47.exe	83
PID 1168 wrote to memory of 1848	1168	1b6f69757ef23af5b07bfaf34a83115ab6a2c12abfe0c7ce693ab18373376b47.exe	83

C:\Users\Admin\AppData\Local\Temp\1b6f69757ef23af5b07bfaf34a83115ab6a2c12abfe0c7ce693ab18373376b47.exe
"C:\Users\Admin\AppData\Local\Temp\1b6f69757ef23af5b07bfaf34a83115ab6a2c12abfe0c7ce693ab18373376b47.exe"
1⤵
- Modifies Installed Components in the registry
- Checks computer location settings
- Adds Run key to start application
- Maps connected drives based on registry
- Suspicious use of SetThreadContext
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1168
- C:\Users\Admin\AppData\Local\Temp\1b6f69757ef23af5b07bfaf34a83115ab6a2c12abfe0c7ce693ab18373376b47.exe
  C:\Users\Admin\AppData\Local\Temp\1b6f69757ef23af5b07bfaf34a83115ab6a2c12abfe0c7ce693ab18373376b47.exe
  2⤵
  - Modifies firewall policy service
  - Adds Run key to start application
  - Modifies data under HKEY_USERS
  PID:3544
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\Fy6aw2ESq8.bat" "
  2⤵
  PID:1848

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Modify Existing Service

1

T1031

Registry Run Keys / Startup Folder

2

T1060

Privilege Escalation

Defense Evasion

Modify Registry

3

T1112

Credential Access

Discovery

Peripheral Device Discovery

Query Registry

System Information Discovery

3

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\BZ8YL.exe

Filesize
808KB

MD5
9028d8fdcf15ecc6533f998b82cfcae0

SHA1
676f28184518a99277d90255e21f3b6da0119b95

SHA256
1b6f69757ef23af5b07bfaf34a83115ab6a2c12abfe0c7ce693ab18373376b47

SHA512
1fd00a7ffe63771164d9ac66e38e49b9d518bbbe90f01fb58bee5769e4c44e1cc91fcf786ff57943626aded27cb2b275380e920adb7087ae0dfbf868de02888d

Download Submit
C:\Users\Admin\AppData\Local\Temp\Fy6aw2ESq8.bat

Filesize
396B

MD5
7be111a5360e52356d2aaebc23888324

SHA1
2868348401cff7ede51718d082fb229623061d40

SHA256
9d0fecd700bf608435e03212c81f4e4ba3bc530ecce4d558c3da978d483c32ff

SHA512
45c83e714ed1cb33c8979d5b1a6b205183bfd989f0a5e1ee9f5237745cd9c9865eae5420fdd9da831a1f0d30d32fb0d0fc13c95316b7bf89fbec4de2232eac08

Download Submit
memory/1168-139-0x0000000000400000-0x00000000004D1000-memory.dmp

Filesize
836KB

Download
memory/1168-144-0x0000000000400000-0x00000000004D1000-memory.dmp

Filesize
836KB

Download
memory/3544-135-0x0000000000400000-0x0000000000420000-memory.dmp

Filesize
128KB

Download
memory/3544-137-0x0000000000400000-0x0000000000420000-memory.dmp

Filesize
128KB

Download
memory/3544-138-0x0000000000400000-0x0000000000420000-memory.dmp

Filesize
128KB

Download
memory/3544-140-0x0000000000400000-0x0000000000420000-memory.dmp

Filesize
128KB

Download
memory/3544-145-0x0000000000400000-0x0000000000420000-memory.dmp

Filesize
128KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads