darkcomet | 86ab6a7f9d86cb1bb3ad5b55d788e785092177db39206f73bb23f6251d3c4baf

General

Target

86ab6a7f9d86cb1bb3ad5b55d788e785092177db39206f73bb23f6251d3c4baf.exe
Size

2.0MB
MD5

27bfb34bccb3534fb28907887ce2d416
SHA1

735ff286a15378f58adc88eb874602ce40fa9876
SHA256

86ab6a7f9d86cb1bb3ad5b55d788e785092177db39206f73bb23f6251d3c4baf
SHA512

c94302184c872e9d31196020e70ce2234196f94e5c0f8cff035babd40f40a1db05e08bca4efeb7080be8b3985eb8606a3cab82a1e701b73b8a6c685cd1acb3b1

Score

10^/10

darkcomet gudy evasion persistence rat trojan upx

Malware Config

Extracted

Family

darkcomet

Botnet

GuDy

C2

sysprocess.ddns.net:1605

mila031.ddns.net:1604

Mutex

DC_MUTEX-9JVEVBK

Attributes

InstallPath
chkdsk32.exe
gencode
QAMy2R5hRowG
install
true
offline_keylogger
true
persistence
true
reg_key
SecurityEssentials

Signatures

Darkcomet
DarkComet is a remote access trojan (RAT) developed by Jean-Pierre Lesueur.
trojan rat darkcomet

Modifies WinLogon for persistence 2 TTPs 1 IoCs

persistence

Winlogon Helper DLL

T1004

Modify Registry

T1112

Processes:

86ab6a7f9d86cb1bb3ad5b55d788e785092177db39206f73bb23f6251d3c4baf.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\UserInit = "C:\\Windows\\system32\\userinit.exe,C:\\Windows\\system32\\chkdsk32.exe"	86ab6a7f9d86cb1bb3ad5b55d788e785092177db39206f73bb23f6251d3c4baf.exe

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

Query Registry
T1012

Virtualization/Sandbox Evasion
T1497
Executes dropped EXE 3 IoCs

Processes:

chkdsk32.exechkdsk32.exechkdsk32.exe

pid process

1856 chkdsk32.exe
1172 chkdsk32.exe
1508 chkdsk32.exe

pid	process
1856	chkdsk32.exe
1172	chkdsk32.exe
1508	chkdsk32.exe

UPX packed file 7 IoCs

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

upx

Processes:

resource	yara_rule
behavioral1/memory/1680-4-0x0000000000400000-0x00000000009DC000-memory.dmp	upx
behavioral1/memory/1680-5-0x0000000000400000-0x00000000009DC000-memory.dmp	upx
behavioral1/memory/1680-6-0x0000000000400000-0x00000000009DC000-memory.dmp	upx
behavioral1/memory/1680-7-0x0000000000400000-0x00000000009DC000-memory.dmp	upx
behavioral1/memory/1680-8-0x0000000000400000-0x00000000009DC000-memory.dmp	upx
behavioral1/memory/1680-10-0x0000000000400000-0x00000000009DC000-memory.dmp	upx
behavioral1/memory/1220-51-0x0000000000400000-0x00000000009DC000-memory.dmp	upx

Checks BIOS information in registry 2 TTPs 4 IoCs

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

Query Registry

T1012

System Information Discovery

T1082

Processes:

86ab6a7f9d86cb1bb3ad5b55d788e785092177db39206f73bb23f6251d3c4baf.exechkdsk32.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	86ab6a7f9d86cb1bb3ad5b55d788e785092177db39206f73bb23f6251d3c4baf.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	86ab6a7f9d86cb1bb3ad5b55d788e785092177db39206f73bb23f6251d3c4baf.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	chkdsk32.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	chkdsk32.exe

Identifies Wine through registry keys 2 TTPs 2 IoCs

Wine is a compatibility layer capable of running Windows applications, which can be used as sandboxing environment.

evasion

Query Registry

T1012

Virtualization/Sandbox Evasion

T1497

Processes:

86ab6a7f9d86cb1bb3ad5b55d788e785092177db39206f73bb23f6251d3c4baf.exechkdsk32.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-1131729243-447456001-3632642222-1000\Software\Wine	86ab6a7f9d86cb1bb3ad5b55d788e785092177db39206f73bb23f6251d3c4baf.exe
Key opened	\REGISTRY\USER\S-1-5-21-1131729243-447456001-3632642222-1000\Software\Wine	chkdsk32.exe

Loads dropped DLL 1 IoCs

Processes:

86ab6a7f9d86cb1bb3ad5b55d788e785092177db39206f73bb23f6251d3c4baf.exe

pid process

1764 86ab6a7f9d86cb1bb3ad5b55d788e785092177db39206f73bb23f6251d3c4baf.exe

pid	process
1764	86ab6a7f9d86cb1bb3ad5b55d788e785092177db39206f73bb23f6251d3c4baf.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

86ab6a7f9d86cb1bb3ad5b55d788e785092177db39206f73bb23f6251d3c4baf.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-1131729243-447456001-3632642222-1000\Software\Microsoft\Windows\CurrentVersion\Run\SecurityEssentials = "C:\\Windows\\system32\\chkdsk32.exe"	86ab6a7f9d86cb1bb3ad5b55d788e785092177db39206f73bb23f6251d3c4baf.exe

Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

1852 1680 WerFault.exe iexplore.exe

pid	pid_target	process	target process
1852	1680	WerFault.exe	iexplore.exe

Drops file in System32 directory 5 IoCs

Processes:

chkdsk32.exe86ab6a7f9d86cb1bb3ad5b55d788e785092177db39206f73bb23f6251d3c4baf.exe

description	ioc	process
File opened for modification	C:\Windows\SysWOW64\chkdsk32.exe	chkdsk32.exe
File created	C:\Windows\SysWOW64\chkdsk32.exe	86ab6a7f9d86cb1bb3ad5b55d788e785092177db39206f73bb23f6251d3c4baf.exe
File opened for modification	C:\Windows\SysWOW64\chkdsk32.exe	86ab6a7f9d86cb1bb3ad5b55d788e785092177db39206f73bb23f6251d3c4baf.exe
File opened for modification	C:\Windows\SysWOW64\	86ab6a7f9d86cb1bb3ad5b55d788e785092177db39206f73bb23f6251d3c4baf.exe
File opened for modification	C:\Windows\SysWOW64\chkdsk32.ex_	chkdsk32.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs

Processes:

86ab6a7f9d86cb1bb3ad5b55d788e785092177db39206f73bb23f6251d3c4baf.exechkdsk32.exe

pid process

112 86ab6a7f9d86cb1bb3ad5b55d788e785092177db39206f73bb23f6251d3c4baf.exe
1856 chkdsk32.exe

Suspicious use of SetThreadContext 4 IoCs

Processes:

86ab6a7f9d86cb1bb3ad5b55d788e785092177db39206f73bb23f6251d3c4baf.exechkdsk32.exe

description	pid	process	target process
PID 112 set thread context of 1680	112	86ab6a7f9d86cb1bb3ad5b55d788e785092177db39206f73bb23f6251d3c4baf.exe	iexplore.exe
PID 112 set thread context of 1764	112	86ab6a7f9d86cb1bb3ad5b55d788e785092177db39206f73bb23f6251d3c4baf.exe	86ab6a7f9d86cb1bb3ad5b55d788e785092177db39206f73bb23f6251d3c4baf.exe
PID 1856 set thread context of 1220	1856	chkdsk32.exe	iexplore.exe
PID 1856 set thread context of 1508	1856	chkdsk32.exe	chkdsk32.exe

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

System Information Discovery
T1082
Modifies Internet Explorer settings 1 TTPs 1 IoCs
adware spyware

Modify Registry
T1112

Processes:

iexplore.exe

description ioc process

Key created \REGISTRY\USER\S-1-5-21-1131729243-447456001-3632642222-1000\Software\Microsoft\Internet Explorer\Main iexplore.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-1131729243-447456001-3632642222-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe

Suspicious behavior: EnumeratesProcesses 9 IoCs

Processes:

86ab6a7f9d86cb1bb3ad5b55d788e785092177db39206f73bb23f6251d3c4baf.exeWerFault.exechkdsk32.exe

pid	process
112	86ab6a7f9d86cb1bb3ad5b55d788e785092177db39206f73bb23f6251d3c4baf.exe
112	86ab6a7f9d86cb1bb3ad5b55d788e785092177db39206f73bb23f6251d3c4baf.exe
1852	WerFault.exe
1852	WerFault.exe
1852	WerFault.exe
1852	WerFault.exe
1852	WerFault.exe
1856	chkdsk32.exe
1856	chkdsk32.exe

Suspicious use of AdjustPrivilegeToken 47 IoCs

Processes:

WerFault.exe86ab6a7f9d86cb1bb3ad5b55d788e785092177db39206f73bb23f6251d3c4baf.exechkdsk32.exe

description	pid	process
Token: SeDebugPrivilege	1852	WerFault.exe
Token: SeIncreaseQuotaPrivilege	1764	86ab6a7f9d86cb1bb3ad5b55d788e785092177db39206f73bb23f6251d3c4baf.exe
Token: SeSecurityPrivilege	1764	86ab6a7f9d86cb1bb3ad5b55d788e785092177db39206f73bb23f6251d3c4baf.exe
Token: SeTakeOwnershipPrivilege	1764	86ab6a7f9d86cb1bb3ad5b55d788e785092177db39206f73bb23f6251d3c4baf.exe
Token: SeLoadDriverPrivilege	1764	86ab6a7f9d86cb1bb3ad5b55d788e785092177db39206f73bb23f6251d3c4baf.exe
Token: SeSystemProfilePrivilege	1764	86ab6a7f9d86cb1bb3ad5b55d788e785092177db39206f73bb23f6251d3c4baf.exe
Token: SeSystemtimePrivilege	1764	86ab6a7f9d86cb1bb3ad5b55d788e785092177db39206f73bb23f6251d3c4baf.exe
Token: SeProfSingleProcessPrivilege	1764	86ab6a7f9d86cb1bb3ad5b55d788e785092177db39206f73bb23f6251d3c4baf.exe
Token: SeIncBasePriorityPrivilege	1764	86ab6a7f9d86cb1bb3ad5b55d788e785092177db39206f73bb23f6251d3c4baf.exe
Token: SeCreatePagefilePrivilege	1764	86ab6a7f9d86cb1bb3ad5b55d788e785092177db39206f73bb23f6251d3c4baf.exe
Token: SeBackupPrivilege	1764	86ab6a7f9d86cb1bb3ad5b55d788e785092177db39206f73bb23f6251d3c4baf.exe
Token: SeRestorePrivilege	1764	86ab6a7f9d86cb1bb3ad5b55d788e785092177db39206f73bb23f6251d3c4baf.exe
Token: SeShutdownPrivilege	1764	86ab6a7f9d86cb1bb3ad5b55d788e785092177db39206f73bb23f6251d3c4baf.exe
Token: SeDebugPrivilege	1764	86ab6a7f9d86cb1bb3ad5b55d788e785092177db39206f73bb23f6251d3c4baf.exe
Token: SeSystemEnvironmentPrivilege	1764	86ab6a7f9d86cb1bb3ad5b55d788e785092177db39206f73bb23f6251d3c4baf.exe
Token: SeChangeNotifyPrivilege	1764	86ab6a7f9d86cb1bb3ad5b55d788e785092177db39206f73bb23f6251d3c4baf.exe
Token: SeRemoteShutdownPrivilege	1764	86ab6a7f9d86cb1bb3ad5b55d788e785092177db39206f73bb23f6251d3c4baf.exe
Token: SeUndockPrivilege	1764	86ab6a7f9d86cb1bb3ad5b55d788e785092177db39206f73bb23f6251d3c4baf.exe
Token: SeManageVolumePrivilege	1764	86ab6a7f9d86cb1bb3ad5b55d788e785092177db39206f73bb23f6251d3c4baf.exe
Token: SeImpersonatePrivilege	1764	86ab6a7f9d86cb1bb3ad5b55d788e785092177db39206f73bb23f6251d3c4baf.exe
Token: SeCreateGlobalPrivilege	1764	86ab6a7f9d86cb1bb3ad5b55d788e785092177db39206f73bb23f6251d3c4baf.exe
Token: 33	1764	86ab6a7f9d86cb1bb3ad5b55d788e785092177db39206f73bb23f6251d3c4baf.exe
Token: 34	1764	86ab6a7f9d86cb1bb3ad5b55d788e785092177db39206f73bb23f6251d3c4baf.exe
Token: 35	1764	86ab6a7f9d86cb1bb3ad5b55d788e785092177db39206f73bb23f6251d3c4baf.exe
Token: SeIncreaseQuotaPrivilege	1508	chkdsk32.exe
Token: SeSecurityPrivilege	1508	chkdsk32.exe
Token: SeTakeOwnershipPrivilege	1508	chkdsk32.exe
Token: SeLoadDriverPrivilege	1508	chkdsk32.exe
Token: SeSystemProfilePrivilege	1508	chkdsk32.exe
Token: SeSystemtimePrivilege	1508	chkdsk32.exe
Token: SeProfSingleProcessPrivilege	1508	chkdsk32.exe
Token: SeIncBasePriorityPrivilege	1508	chkdsk32.exe
Token: SeCreatePagefilePrivilege	1508	chkdsk32.exe
Token: SeBackupPrivilege	1508	chkdsk32.exe
Token: SeRestorePrivilege	1508	chkdsk32.exe
Token: SeShutdownPrivilege	1508	chkdsk32.exe
Token: SeDebugPrivilege	1508	chkdsk32.exe
Token: SeSystemEnvironmentPrivilege	1508	chkdsk32.exe
Token: SeChangeNotifyPrivilege	1508	chkdsk32.exe
Token: SeRemoteShutdownPrivilege	1508	chkdsk32.exe
Token: SeUndockPrivilege	1508	chkdsk32.exe
Token: SeManageVolumePrivilege	1508	chkdsk32.exe
Token: SeImpersonatePrivilege	1508	chkdsk32.exe
Token: SeCreateGlobalPrivilege	1508	chkdsk32.exe
Token: 33	1508	chkdsk32.exe
Token: 34	1508	chkdsk32.exe
Token: 35	1508	chkdsk32.exe

Suspicious use of SetWindowsHookEx 5 IoCs

Processes:

iexplore.exechkdsk32.exe

pid process

1220 iexplore.exe
1220 iexplore.exe
1220 iexplore.exe
1220 iexplore.exe
1508 chkdsk32.exe

pid	process
1220	iexplore.exe
1220	iexplore.exe
1220	iexplore.exe
1220	iexplore.exe
1508	chkdsk32.exe

Suspicious use of WriteProcessMemory 64 IoCs

Processes:

86ab6a7f9d86cb1bb3ad5b55d788e785092177db39206f73bb23f6251d3c4baf.exeiexplore.exe86ab6a7f9d86cb1bb3ad5b55d788e785092177db39206f73bb23f6251d3c4baf.exechkdsk32.exe

description	pid	process	target process
PID 112 wrote to memory of 1680	112	86ab6a7f9d86cb1bb3ad5b55d788e785092177db39206f73bb23f6251d3c4baf.exe	iexplore.exe
PID 112 wrote to memory of 1680	112	86ab6a7f9d86cb1bb3ad5b55d788e785092177db39206f73bb23f6251d3c4baf.exe	iexplore.exe
PID 112 wrote to memory of 1680	112	86ab6a7f9d86cb1bb3ad5b55d788e785092177db39206f73bb23f6251d3c4baf.exe	iexplore.exe
PID 112 wrote to memory of 1680	112	86ab6a7f9d86cb1bb3ad5b55d788e785092177db39206f73bb23f6251d3c4baf.exe	iexplore.exe
PID 112 wrote to memory of 1680	112	86ab6a7f9d86cb1bb3ad5b55d788e785092177db39206f73bb23f6251d3c4baf.exe	iexplore.exe
PID 112 wrote to memory of 1680	112	86ab6a7f9d86cb1bb3ad5b55d788e785092177db39206f73bb23f6251d3c4baf.exe	iexplore.exe
PID 112 wrote to memory of 1680	112	86ab6a7f9d86cb1bb3ad5b55d788e785092177db39206f73bb23f6251d3c4baf.exe	iexplore.exe
PID 112 wrote to memory of 1680	112	86ab6a7f9d86cb1bb3ad5b55d788e785092177db39206f73bb23f6251d3c4baf.exe	iexplore.exe
PID 112 wrote to memory of 1680	112	86ab6a7f9d86cb1bb3ad5b55d788e785092177db39206f73bb23f6251d3c4baf.exe	iexplore.exe
PID 112 wrote to memory of 1680	112	86ab6a7f9d86cb1bb3ad5b55d788e785092177db39206f73bb23f6251d3c4baf.exe	iexplore.exe
PID 112 wrote to memory of 1680	112	86ab6a7f9d86cb1bb3ad5b55d788e785092177db39206f73bb23f6251d3c4baf.exe	iexplore.exe
PID 112 wrote to memory of 1776	112	86ab6a7f9d86cb1bb3ad5b55d788e785092177db39206f73bb23f6251d3c4baf.exe	86ab6a7f9d86cb1bb3ad5b55d788e785092177db39206f73bb23f6251d3c4baf.exe
PID 112 wrote to memory of 1776	112	86ab6a7f9d86cb1bb3ad5b55d788e785092177db39206f73bb23f6251d3c4baf.exe	86ab6a7f9d86cb1bb3ad5b55d788e785092177db39206f73bb23f6251d3c4baf.exe
PID 112 wrote to memory of 1776	112	86ab6a7f9d86cb1bb3ad5b55d788e785092177db39206f73bb23f6251d3c4baf.exe	86ab6a7f9d86cb1bb3ad5b55d788e785092177db39206f73bb23f6251d3c4baf.exe
PID 112 wrote to memory of 1776	112	86ab6a7f9d86cb1bb3ad5b55d788e785092177db39206f73bb23f6251d3c4baf.exe	86ab6a7f9d86cb1bb3ad5b55d788e785092177db39206f73bb23f6251d3c4baf.exe
PID 112 wrote to memory of 1764	112	86ab6a7f9d86cb1bb3ad5b55d788e785092177db39206f73bb23f6251d3c4baf.exe	86ab6a7f9d86cb1bb3ad5b55d788e785092177db39206f73bb23f6251d3c4baf.exe
PID 112 wrote to memory of 1764	112	86ab6a7f9d86cb1bb3ad5b55d788e785092177db39206f73bb23f6251d3c4baf.exe	86ab6a7f9d86cb1bb3ad5b55d788e785092177db39206f73bb23f6251d3c4baf.exe
PID 112 wrote to memory of 1764	112	86ab6a7f9d86cb1bb3ad5b55d788e785092177db39206f73bb23f6251d3c4baf.exe	86ab6a7f9d86cb1bb3ad5b55d788e785092177db39206f73bb23f6251d3c4baf.exe
PID 112 wrote to memory of 1764	112	86ab6a7f9d86cb1bb3ad5b55d788e785092177db39206f73bb23f6251d3c4baf.exe	86ab6a7f9d86cb1bb3ad5b55d788e785092177db39206f73bb23f6251d3c4baf.exe
PID 112 wrote to memory of 1764	112	86ab6a7f9d86cb1bb3ad5b55d788e785092177db39206f73bb23f6251d3c4baf.exe	86ab6a7f9d86cb1bb3ad5b55d788e785092177db39206f73bb23f6251d3c4baf.exe
PID 112 wrote to memory of 1764	112	86ab6a7f9d86cb1bb3ad5b55d788e785092177db39206f73bb23f6251d3c4baf.exe	86ab6a7f9d86cb1bb3ad5b55d788e785092177db39206f73bb23f6251d3c4baf.exe
PID 112 wrote to memory of 1764	112	86ab6a7f9d86cb1bb3ad5b55d788e785092177db39206f73bb23f6251d3c4baf.exe	86ab6a7f9d86cb1bb3ad5b55d788e785092177db39206f73bb23f6251d3c4baf.exe
PID 112 wrote to memory of 1764	112	86ab6a7f9d86cb1bb3ad5b55d788e785092177db39206f73bb23f6251d3c4baf.exe	86ab6a7f9d86cb1bb3ad5b55d788e785092177db39206f73bb23f6251d3c4baf.exe
PID 112 wrote to memory of 1764	112	86ab6a7f9d86cb1bb3ad5b55d788e785092177db39206f73bb23f6251d3c4baf.exe	86ab6a7f9d86cb1bb3ad5b55d788e785092177db39206f73bb23f6251d3c4baf.exe
PID 112 wrote to memory of 1764	112	86ab6a7f9d86cb1bb3ad5b55d788e785092177db39206f73bb23f6251d3c4baf.exe	86ab6a7f9d86cb1bb3ad5b55d788e785092177db39206f73bb23f6251d3c4baf.exe
PID 112 wrote to memory of 1764	112	86ab6a7f9d86cb1bb3ad5b55d788e785092177db39206f73bb23f6251d3c4baf.exe	86ab6a7f9d86cb1bb3ad5b55d788e785092177db39206f73bb23f6251d3c4baf.exe
PID 112 wrote to memory of 1764	112	86ab6a7f9d86cb1bb3ad5b55d788e785092177db39206f73bb23f6251d3c4baf.exe	86ab6a7f9d86cb1bb3ad5b55d788e785092177db39206f73bb23f6251d3c4baf.exe
PID 112 wrote to memory of 1764	112	86ab6a7f9d86cb1bb3ad5b55d788e785092177db39206f73bb23f6251d3c4baf.exe	86ab6a7f9d86cb1bb3ad5b55d788e785092177db39206f73bb23f6251d3c4baf.exe
PID 112 wrote to memory of 1764	112	86ab6a7f9d86cb1bb3ad5b55d788e785092177db39206f73bb23f6251d3c4baf.exe	86ab6a7f9d86cb1bb3ad5b55d788e785092177db39206f73bb23f6251d3c4baf.exe
PID 112 wrote to memory of 1764	112	86ab6a7f9d86cb1bb3ad5b55d788e785092177db39206f73bb23f6251d3c4baf.exe	86ab6a7f9d86cb1bb3ad5b55d788e785092177db39206f73bb23f6251d3c4baf.exe
PID 112 wrote to memory of 1764	112	86ab6a7f9d86cb1bb3ad5b55d788e785092177db39206f73bb23f6251d3c4baf.exe	86ab6a7f9d86cb1bb3ad5b55d788e785092177db39206f73bb23f6251d3c4baf.exe
PID 112 wrote to memory of 1764	112	86ab6a7f9d86cb1bb3ad5b55d788e785092177db39206f73bb23f6251d3c4baf.exe	86ab6a7f9d86cb1bb3ad5b55d788e785092177db39206f73bb23f6251d3c4baf.exe
PID 112 wrote to memory of 1764	112	86ab6a7f9d86cb1bb3ad5b55d788e785092177db39206f73bb23f6251d3c4baf.exe	86ab6a7f9d86cb1bb3ad5b55d788e785092177db39206f73bb23f6251d3c4baf.exe
PID 112 wrote to memory of 1764	112	86ab6a7f9d86cb1bb3ad5b55d788e785092177db39206f73bb23f6251d3c4baf.exe	86ab6a7f9d86cb1bb3ad5b55d788e785092177db39206f73bb23f6251d3c4baf.exe
PID 112 wrote to memory of 1764	112	86ab6a7f9d86cb1bb3ad5b55d788e785092177db39206f73bb23f6251d3c4baf.exe	86ab6a7f9d86cb1bb3ad5b55d788e785092177db39206f73bb23f6251d3c4baf.exe
PID 1680 wrote to memory of 1852	1680	iexplore.exe	WerFault.exe
PID 1680 wrote to memory of 1852	1680	iexplore.exe	WerFault.exe
PID 1680 wrote to memory of 1852	1680	iexplore.exe	WerFault.exe
PID 1680 wrote to memory of 1852	1680	iexplore.exe	WerFault.exe
PID 112 wrote to memory of 1764	112	86ab6a7f9d86cb1bb3ad5b55d788e785092177db39206f73bb23f6251d3c4baf.exe	86ab6a7f9d86cb1bb3ad5b55d788e785092177db39206f73bb23f6251d3c4baf.exe
PID 1764 wrote to memory of 1856	1764	86ab6a7f9d86cb1bb3ad5b55d788e785092177db39206f73bb23f6251d3c4baf.exe	chkdsk32.exe
PID 1764 wrote to memory of 1856	1764	86ab6a7f9d86cb1bb3ad5b55d788e785092177db39206f73bb23f6251d3c4baf.exe	chkdsk32.exe
PID 1764 wrote to memory of 1856	1764	86ab6a7f9d86cb1bb3ad5b55d788e785092177db39206f73bb23f6251d3c4baf.exe	chkdsk32.exe
PID 1764 wrote to memory of 1856	1764	86ab6a7f9d86cb1bb3ad5b55d788e785092177db39206f73bb23f6251d3c4baf.exe	chkdsk32.exe
PID 1856 wrote to memory of 1220	1856	chkdsk32.exe	iexplore.exe
PID 1856 wrote to memory of 1220	1856	chkdsk32.exe	iexplore.exe
PID 1856 wrote to memory of 1220	1856	chkdsk32.exe	iexplore.exe
PID 1856 wrote to memory of 1220	1856	chkdsk32.exe	iexplore.exe
PID 1856 wrote to memory of 1220	1856	chkdsk32.exe	iexplore.exe
PID 1856 wrote to memory of 1220	1856	chkdsk32.exe	iexplore.exe
PID 1856 wrote to memory of 1220	1856	chkdsk32.exe	iexplore.exe
PID 1856 wrote to memory of 1220	1856	chkdsk32.exe	iexplore.exe
PID 1856 wrote to memory of 1220	1856	chkdsk32.exe	iexplore.exe
PID 1856 wrote to memory of 1220	1856	chkdsk32.exe	iexplore.exe
PID 1856 wrote to memory of 1220	1856	chkdsk32.exe	iexplore.exe
PID 1856 wrote to memory of 1220	1856	chkdsk32.exe	iexplore.exe
PID 1856 wrote to memory of 1172	1856	chkdsk32.exe	chkdsk32.exe
PID 1856 wrote to memory of 1172	1856	chkdsk32.exe	chkdsk32.exe
PID 1856 wrote to memory of 1172	1856	chkdsk32.exe	chkdsk32.exe
PID 1856 wrote to memory of 1172	1856	chkdsk32.exe	chkdsk32.exe
PID 1856 wrote to memory of 1508	1856	chkdsk32.exe	chkdsk32.exe
PID 1856 wrote to memory of 1508	1856	chkdsk32.exe	chkdsk32.exe
PID 1856 wrote to memory of 1508	1856	chkdsk32.exe	chkdsk32.exe
PID 1856 wrote to memory of 1508	1856	chkdsk32.exe	chkdsk32.exe

C:\Users\Admin\AppData\Local\Temp\86ab6a7f9d86cb1bb3ad5b55d788e785092177db39206f73bb23f6251d3c4baf.exe
"C:\Users\Admin\AppData\Local\Temp\86ab6a7f9d86cb1bb3ad5b55d788e785092177db39206f73bb23f6251d3c4baf.exe"
1⤵
- Checks BIOS information in registry
- Identifies Wine through registry keys
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:112

C:\Program Files (x86)\Internet Explorer\iexplore.exe
"C:\Program Files (x86)\Internet Explorer\iexplore.exe"
2⤵
- Suspicious use of WriteProcessMemory
PID:1680

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 1680 -s 176
3⤵
- Program crash
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1852

C:\Users\Admin\AppData\Local\Temp\86ab6a7f9d86cb1bb3ad5b55d788e785092177db39206f73bb23f6251d3c4baf.exe
C:\Users\Admin\AppData\Local\Temp\86ab6a7f9d86cb1bb3ad5b55d788e785092177db39206f73bb23f6251d3c4baf.exe
2⤵
PID:1776

C:\Users\Admin\AppData\Local\Temp\86ab6a7f9d86cb1bb3ad5b55d788e785092177db39206f73bb23f6251d3c4baf.exe
C:\Users\Admin\AppData\Local\Temp\86ab6a7f9d86cb1bb3ad5b55d788e785092177db39206f73bb23f6251d3c4baf.exe
2⤵
- Modifies WinLogon for persistence
- Loads dropped DLL
- Adds Run key to start application
- Drops file in System32 directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1764

C:\Windows\SysWOW64\chkdsk32.exe
"C:\Windows\system32\chkdsk32.exe"
3⤵
- Executes dropped EXE
- Checks BIOS information in registry
- Identifies Wine through registry keys
- Drops file in System32 directory
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1856

C:\Program Files (x86)\Internet Explorer\iexplore.exe
"C:\Program Files (x86)\Internet Explorer\iexplore.exe"
4⤵
- Modifies Internet Explorer settings
- Suspicious use of SetWindowsHookEx
PID:1220

C:\Windows\SysWOW64\chkdsk32.exe
C:\Windows\SysWOW64\chkdsk32.exe
4⤵
- Executes dropped EXE
PID:1172

C:\Windows\SysWOW64\chkdsk32.exe
C:\Windows\SysWOW64\chkdsk32.exe
4⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:1508

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Winlogon Helper DLL

1

T1004

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

3

T1112

Virtualization/Sandbox Evasion

2

T1497

Credential Access

Discovery

Query Registry

3

T1012

Virtualization/Sandbox Evasion

2

T1497

System Information Discovery

2

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startupx\system.pif
MD5
e3a9da80ad636604557d8c08bcd92803

SHA1
a19ff18fcd3711d4a5ee1695a32f3ee9a8e021f0

SHA256
de81ba6ee280967591e0316adb2f371f9c084de446542b16d46d3e53437a9d51

SHA512
5f595255bb94d38ab5014fa71da5251206d10c5c0f4f23cba899e201b0d8abad9fd0512b3d66c0d0a9d93c3f92e21dccea54b0f522e8cff4804b0de4437d7645

Download Submit
C:\Windows\SysWOW64\chkdsk32.exe
MD5
27bfb34bccb3534fb28907887ce2d416

SHA1
735ff286a15378f58adc88eb874602ce40fa9876

SHA256
86ab6a7f9d86cb1bb3ad5b55d788e785092177db39206f73bb23f6251d3c4baf

SHA512
c94302184c872e9d31196020e70ce2234196f94e5c0f8cff035babd40f40a1db05e08bca4efeb7080be8b3985eb8606a3cab82a1e701b73b8a6c685cd1acb3b1

Download Submit
C:\Windows\SysWOW64\chkdsk32.exe
MD5
27bfb34bccb3534fb28907887ce2d416

SHA1
735ff286a15378f58adc88eb874602ce40fa9876

SHA256
86ab6a7f9d86cb1bb3ad5b55d788e785092177db39206f73bb23f6251d3c4baf

SHA512
c94302184c872e9d31196020e70ce2234196f94e5c0f8cff035babd40f40a1db05e08bca4efeb7080be8b3985eb8606a3cab82a1e701b73b8a6c685cd1acb3b1

Download Submit
C:\Windows\SysWOW64\chkdsk32.exe
MD5
27bfb34bccb3534fb28907887ce2d416

SHA1
735ff286a15378f58adc88eb874602ce40fa9876

SHA256
86ab6a7f9d86cb1bb3ad5b55d788e785092177db39206f73bb23f6251d3c4baf

SHA512
c94302184c872e9d31196020e70ce2234196f94e5c0f8cff035babd40f40a1db05e08bca4efeb7080be8b3985eb8606a3cab82a1e701b73b8a6c685cd1acb3b1

Download Submit
C:\Windows\SysWOW64\chkdsk32.exe
MD5
27bfb34bccb3534fb28907887ce2d416

SHA1
735ff286a15378f58adc88eb874602ce40fa9876

SHA256
86ab6a7f9d86cb1bb3ad5b55d788e785092177db39206f73bb23f6251d3c4baf

SHA512
c94302184c872e9d31196020e70ce2234196f94e5c0f8cff035babd40f40a1db05e08bca4efeb7080be8b3985eb8606a3cab82a1e701b73b8a6c685cd1acb3b1

Download Submit
\Windows\SysWOW64\chkdsk32.exe
MD5
27bfb34bccb3534fb28907887ce2d416

SHA1
735ff286a15378f58adc88eb874602ce40fa9876

SHA256
86ab6a7f9d86cb1bb3ad5b55d788e785092177db39206f73bb23f6251d3c4baf

SHA512
c94302184c872e9d31196020e70ce2234196f94e5c0f8cff035babd40f40a1db05e08bca4efeb7080be8b3985eb8606a3cab82a1e701b73b8a6c685cd1acb3b1

Download Submit
memory/112-2-0x0000000004800000-0x0000000004811000-memory.dmp

Filesize
68KB

Download
memory/112-1-0x0000000004C10000-0x0000000004C21000-memory.dmp

Filesize
68KB

Download
memory/112-0-0x0000000004800000-0x0000000004811000-memory.dmp

Filesize
68KB

Download
memory/1220-50-0x000000000040D810-mapping.dmp

Download
memory/1220-51-0x0000000000400000-0x00000000009DC000-memory.dmp

Filesize
5.9MB

Download
memory/1508-69-0x000000000048F888-mapping.dmp

Download
memory/1508-71-0x0000000000400000-0x0000000000564000-memory.dmp

Filesize
1.4MB

Download
memory/1680-5-0x0000000000400000-0x00000000009DC000-memory.dmp

Filesize
5.9MB

Download
memory/1680-10-0x0000000000400000-0x00000000009DC000-memory.dmp

Filesize
5.9MB

Download
memory/1680-9-0x000000000040D810-mapping.dmp

Download
memory/1680-8-0x0000000000400000-0x00000000009DC000-memory.dmp

Filesize
5.9MB

Download
memory/1680-7-0x0000000000400000-0x00000000009DC000-memory.dmp

Filesize
5.9MB

Download
memory/1680-6-0x0000000000400000-0x00000000009DC000-memory.dmp

Filesize
5.9MB

Download
memory/1680-31-0x000000000040D810-mapping.dmp

Download
memory/1680-4-0x0000000000400000-0x00000000009DC000-memory.dmp

Filesize
5.9MB

Download
memory/1680-3-0x0000000000400000-0x00000000009DC000-memory.dmp

Filesize
5.9MB

Download
memory/1764-11-0x0000000000400000-0x0000000000564000-memory.dmp

Filesize
1.4MB

Download
memory/1764-19-0x0000000000400000-0x0000000000564000-memory.dmp

Filesize
1.4MB

Download
memory/1764-24-0x0000000000400000-0x0000000000564000-memory.dmp

Filesize
1.4MB

Download
memory/1764-25-0x0000000000400000-0x0000000000564000-memory.dmp

Filesize
1.4MB

Download
memory/1764-26-0x0000000000400000-0x0000000000564000-memory.dmp

Filesize
1.4MB

Download
memory/1764-27-0x000000000048F888-mapping.dmp

Download
memory/1764-12-0x0000000000400000-0x0000000000564000-memory.dmp

Filesize
1.4MB

Download
memory/1764-13-0x0000000000400000-0x0000000000564000-memory.dmp

Filesize
1.4MB

Download
memory/1764-30-0x0000000000400000-0x0000000000564000-memory.dmp

Filesize
1.4MB

Download
memory/1764-22-0x0000000000400000-0x0000000000564000-memory.dmp

Filesize
1.4MB

Download
memory/1764-14-0x0000000000400000-0x0000000000564000-memory.dmp

Filesize
1.4MB

Download
memory/1764-21-0x0000000000400000-0x0000000000564000-memory.dmp

Filesize
1.4MB

Download
memory/1764-15-0x0000000000400000-0x0000000000564000-memory.dmp

Filesize
1.4MB

Download
memory/1764-20-0x0000000000400000-0x0000000000564000-memory.dmp

Filesize
1.4MB

Download
memory/1764-16-0x0000000000400000-0x0000000000564000-memory.dmp

Filesize
1.4MB

Download
memory/1764-17-0x0000000000400000-0x0000000000564000-memory.dmp

Filesize
1.4MB

Download
memory/1764-23-0x0000000000400000-0x0000000000564000-memory.dmp

Filesize
1.4MB

Download
memory/1764-18-0x0000000000400000-0x0000000000564000-memory.dmp

Filesize
1.4MB

Download
memory/1852-32-0x0000000002560000-0x0000000002571000-memory.dmp

Filesize
68KB

Download
memory/1852-29-0x0000000001F90000-0x0000000001FA1000-memory.dmp

Filesize
68KB

Download
memory/1852-28-0x0000000000000000-mapping.dmp

Download
memory/1856-39-0x0000000004D90000-0x0000000004DA1000-memory.dmp

Filesize
68KB

Download
memory/1856-38-0x0000000004980000-0x0000000004991000-memory.dmp

Filesize
68KB

Download
memory/1856-34-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

Replay Monitor

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Downloads