darkcomet | 87c17d033b53cca26f96f6058b1629037c632fd036f2ec1c988846b0c08ceef8

Analysis

max time kernel
149s
max time network
101s
platform
windows10-2004_x64
resource
win10v2004-20240709-en
resource tags

arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system
submitted
16-07-2024 18:20

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General

Target

4f84afc78b877412709a522bc52aefbf_JaffaCakes118.exe
Size

389KB
MD5

4f84afc78b877412709a522bc52aefbf
SHA1

6518b24623cea124f9e954df4af260070b5ef4e2
SHA256

87c17d033b53cca26f96f6058b1629037c632fd036f2ec1c988846b0c08ceef8
SHA512

e36d2b7788d3cccf6f256a5e5bc0545b8dceb69f9197e76ea2b5008d24dc7b6437a05d82c735c50dcdf3f5f6d8fa1ac67f9edc10b8f8089c6d58935e11336423
SSDEEP

12288:AR72EqluswR45JTnaEY2Pupd8a2aRTiua:AR7uE4BaEY2Pt

Score

10^/10

darkcomet latentbot evasion persistence rat trojan upx

Malware Config

Extracted

Family

latentbot

backdoor2012.zapto.org

Signatures

Darkcomet
DarkComet is a remote access trojan (RAT) developed by Jean-Pierre Lesueur.
trojan rat darkcomet
LatentBot
Modular trojan written in Delphi which has been in-the-wild since 2013.
trojan latentbot

Modifies WinLogon for persistence 2 TTPs 1 IoCs

persistence

Winlogon Helper DLL

T1547.004

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\UserInit = "C:\\Windows\\system32\\userinit.exe,C:\\Users\\Admin\\Documents\\MSUPDATE\\msdslcs.exe"	4f84afc78b877412709a522bc52aefbf_JaffaCakes118.exe

Sets file to hidden 1 TTPs 2 IoCs

Modifies file attributes to stop it showing in Explorer etc.

evasion

Hidden Files and Directories

T1564.001

pid	Process
2288	attrib.exe
2500	attrib.exe

Checks computer location settings 2 TTPs 2 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-1-5-21-464762018-485119342-1613148473-1000\Control Panel\International\Geo\Nation	HOURB.EXE
Key value queried	\REGISTRY\USER\S-1-5-21-464762018-485119342-1613148473-1000\Control Panel\International\Geo\Nation	4f84afc78b877412709a522bc52aefbf_JaffaCakes118.exe

Executes dropped EXE 2 IoCs

pid	Process
3464	HOURB.EXE
1996	msdslcs.exe

UPX packed file 17 IoCs

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

upx

resource	yara_rule
behavioral2/memory/5036-0-0x0000000000400000-0x00000000004F4000-memory.dmp	upx
behavioral2/files/0x00080000000234ae-18.dat	upx
behavioral2/memory/5036-76-0x0000000000400000-0x00000000004F4000-memory.dmp	upx
behavioral2/memory/1996-78-0x0000000000400000-0x00000000004F4000-memory.dmp	upx
behavioral2/memory/1996-80-0x0000000000400000-0x00000000004F4000-memory.dmp	upx
behavioral2/memory/1996-82-0x0000000000400000-0x00000000004F4000-memory.dmp	upx
behavioral2/memory/1996-84-0x0000000000400000-0x00000000004F4000-memory.dmp	upx
behavioral2/memory/1996-87-0x0000000000400000-0x00000000004F4000-memory.dmp	upx
behavioral2/memory/1996-88-0x0000000000400000-0x00000000004F4000-memory.dmp	upx
behavioral2/memory/1996-89-0x0000000000400000-0x00000000004F4000-memory.dmp	upx
behavioral2/memory/1996-90-0x0000000000400000-0x00000000004F4000-memory.dmp	upx
behavioral2/memory/1996-91-0x0000000000400000-0x00000000004F4000-memory.dmp	upx
behavioral2/memory/1996-92-0x0000000000400000-0x00000000004F4000-memory.dmp	upx
behavioral2/memory/1996-93-0x0000000000400000-0x00000000004F4000-memory.dmp	upx
behavioral2/memory/1996-94-0x0000000000400000-0x00000000004F4000-memory.dmp	upx
behavioral2/memory/1996-95-0x0000000000400000-0x00000000004F4000-memory.dmp	upx
behavioral2/memory/1996-96-0x0000000000400000-0x00000000004F4000-memory.dmp	upx

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-464762018-485119342-1613148473-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\Documents\\MSUPDATE\\msdslcs.exe"	4f84afc78b877412709a522bc52aefbf_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-464762018-485119342-1613148473-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\Documents\\MSUPDATE\\msdslcs.exe"	msdslcs.exe

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

System Information Discovery
T1082

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\	4f84afc78b877412709a522bc52aefbf_JaffaCakes118.exe

Suspicious use of AdjustPrivilegeToken 48 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	5036	4f84afc78b877412709a522bc52aefbf_JaffaCakes118.exe
Token: SeSecurityPrivilege	5036	4f84afc78b877412709a522bc52aefbf_JaffaCakes118.exe
Token: SeTakeOwnershipPrivilege	5036	4f84afc78b877412709a522bc52aefbf_JaffaCakes118.exe
Token: SeLoadDriverPrivilege	5036	4f84afc78b877412709a522bc52aefbf_JaffaCakes118.exe
Token: SeSystemProfilePrivilege	5036	4f84afc78b877412709a522bc52aefbf_JaffaCakes118.exe
Token: SeSystemtimePrivilege	5036	4f84afc78b877412709a522bc52aefbf_JaffaCakes118.exe
Token: SeProfSingleProcessPrivilege	5036	4f84afc78b877412709a522bc52aefbf_JaffaCakes118.exe
Token: SeIncBasePriorityPrivilege	5036	4f84afc78b877412709a522bc52aefbf_JaffaCakes118.exe
Token: SeCreatePagefilePrivilege	5036	4f84afc78b877412709a522bc52aefbf_JaffaCakes118.exe
Token: SeBackupPrivilege	5036	4f84afc78b877412709a522bc52aefbf_JaffaCakes118.exe
Token: SeRestorePrivilege	5036	4f84afc78b877412709a522bc52aefbf_JaffaCakes118.exe
Token: SeShutdownPrivilege	5036	4f84afc78b877412709a522bc52aefbf_JaffaCakes118.exe
Token: SeDebugPrivilege	5036	4f84afc78b877412709a522bc52aefbf_JaffaCakes118.exe
Token: SeSystemEnvironmentPrivilege	5036	4f84afc78b877412709a522bc52aefbf_JaffaCakes118.exe
Token: SeChangeNotifyPrivilege	5036	4f84afc78b877412709a522bc52aefbf_JaffaCakes118.exe
Token: SeRemoteShutdownPrivilege	5036	4f84afc78b877412709a522bc52aefbf_JaffaCakes118.exe
Token: SeUndockPrivilege	5036	4f84afc78b877412709a522bc52aefbf_JaffaCakes118.exe
Token: SeManageVolumePrivilege	5036	4f84afc78b877412709a522bc52aefbf_JaffaCakes118.exe
Token: SeImpersonatePrivilege	5036	4f84afc78b877412709a522bc52aefbf_JaffaCakes118.exe
Token: SeCreateGlobalPrivilege	5036	4f84afc78b877412709a522bc52aefbf_JaffaCakes118.exe
Token: 33	5036	4f84afc78b877412709a522bc52aefbf_JaffaCakes118.exe
Token: 34	5036	4f84afc78b877412709a522bc52aefbf_JaffaCakes118.exe
Token: 35	5036	4f84afc78b877412709a522bc52aefbf_JaffaCakes118.exe
Token: 36	5036	4f84afc78b877412709a522bc52aefbf_JaffaCakes118.exe
Token: SeIncreaseQuotaPrivilege	1996	msdslcs.exe
Token: SeSecurityPrivilege	1996	msdslcs.exe
Token: SeTakeOwnershipPrivilege	1996	msdslcs.exe
Token: SeLoadDriverPrivilege	1996	msdslcs.exe
Token: SeSystemProfilePrivilege	1996	msdslcs.exe
Token: SeSystemtimePrivilege	1996	msdslcs.exe
Token: SeProfSingleProcessPrivilege	1996	msdslcs.exe
Token: SeIncBasePriorityPrivilege	1996	msdslcs.exe
Token: SeCreatePagefilePrivilege	1996	msdslcs.exe
Token: SeBackupPrivilege	1996	msdslcs.exe
Token: SeRestorePrivilege	1996	msdslcs.exe
Token: SeShutdownPrivilege	1996	msdslcs.exe
Token: SeDebugPrivilege	1996	msdslcs.exe
Token: SeSystemEnvironmentPrivilege	1996	msdslcs.exe
Token: SeChangeNotifyPrivilege	1996	msdslcs.exe
Token: SeRemoteShutdownPrivilege	1996	msdslcs.exe
Token: SeUndockPrivilege	1996	msdslcs.exe
Token: SeManageVolumePrivilege	1996	msdslcs.exe
Token: SeImpersonatePrivilege	1996	msdslcs.exe
Token: SeCreateGlobalPrivilege	1996	msdslcs.exe
Token: 33	1996	msdslcs.exe
Token: 34	1996	msdslcs.exe
Token: 35	1996	msdslcs.exe
Token: 36	1996	msdslcs.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1996	msdslcs.exe

Suspicious use of WriteProcessMemory 26 IoCs

description	pid	Process	procid_target
PID 5036 wrote to memory of 376	5036	4f84afc78b877412709a522bc52aefbf_JaffaCakes118.exe	86
PID 5036 wrote to memory of 376	5036	4f84afc78b877412709a522bc52aefbf_JaffaCakes118.exe	86
PID 5036 wrote to memory of 376	5036	4f84afc78b877412709a522bc52aefbf_JaffaCakes118.exe	86
PID 5036 wrote to memory of 3220	5036	4f84afc78b877412709a522bc52aefbf_JaffaCakes118.exe	88
PID 5036 wrote to memory of 3220	5036	4f84afc78b877412709a522bc52aefbf_JaffaCakes118.exe	88
PID 5036 wrote to memory of 3220	5036	4f84afc78b877412709a522bc52aefbf_JaffaCakes118.exe	88
PID 5036 wrote to memory of 3464	5036	4f84afc78b877412709a522bc52aefbf_JaffaCakes118.exe	90
PID 5036 wrote to memory of 3464	5036	4f84afc78b877412709a522bc52aefbf_JaffaCakes118.exe	90
PID 5036 wrote to memory of 3464	5036	4f84afc78b877412709a522bc52aefbf_JaffaCakes118.exe	90
PID 376 wrote to memory of 2288	376	cmd.exe	91
PID 376 wrote to memory of 2288	376	cmd.exe	91
PID 376 wrote to memory of 2288	376	cmd.exe	91
PID 3220 wrote to memory of 2500	3220	cmd.exe	92
PID 3220 wrote to memory of 2500	3220	cmd.exe	92
PID 3220 wrote to memory of 2500	3220	cmd.exe	92
PID 5036 wrote to memory of 1996	5036	4f84afc78b877412709a522bc52aefbf_JaffaCakes118.exe	93
PID 5036 wrote to memory of 1996	5036	4f84afc78b877412709a522bc52aefbf_JaffaCakes118.exe	93
PID 5036 wrote to memory of 1996	5036	4f84afc78b877412709a522bc52aefbf_JaffaCakes118.exe	93
PID 1996 wrote to memory of 3284	1996	msdslcs.exe	94
PID 1996 wrote to memory of 3284	1996	msdslcs.exe	94
PID 1996 wrote to memory of 3284	1996	msdslcs.exe	94
PID 1996 wrote to memory of 3088	1996	msdslcs.exe	95
PID 1996 wrote to memory of 3088	1996	msdslcs.exe	95
PID 3464 wrote to memory of 3452	3464	HOURB.EXE	101
PID 3464 wrote to memory of 3452	3464	HOURB.EXE	101
PID 3464 wrote to memory of 3452	3464	HOURB.EXE	101

Views/modifies file attributes 1 TTPs 2 IoCs

evasion

Hidden Files and Directories

T1564.001

pid	Process
2288	attrib.exe
2500	attrib.exe

C:\Users\Admin\AppData\Local\Temp\4f84afc78b877412709a522bc52aefbf_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\4f84afc78b877412709a522bc52aefbf_JaffaCakes118.exe"
1⤵
- Modifies WinLogon for persistence
- Checks computer location settings
- Adds Run key to start application
- Modifies registry class
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:5036
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp\4f84afc78b877412709a522bc52aefbf_JaffaCakes118.exe" +s +h
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:376
- - C:\Windows\SysWOW64\attrib.exe
    attrib "C:\Users\Admin\AppData\Local\Temp\4f84afc78b877412709a522bc52aefbf_JaffaCakes118.exe" +s +h
    3⤵
    - Sets file to hidden
    - Views/modifies file attributes
    PID:2288
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp" +s +h
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:3220
- - C:\Windows\SysWOW64\attrib.exe
    attrib "C:\Users\Admin\AppData\Local\Temp" +s +h
    3⤵
    - Sets file to hidden
    - Views/modifies file attributes
    PID:2500
- C:\Users\Admin\AppData\Local\Temp\HOURB.EXE
  "C:\Users\Admin\AppData\Local\Temp\HOURB.EXE"
  2⤵
  - Checks computer location settings
  - Executes dropped EXE
  - Suspicious use of WriteProcessMemory
  PID:3464
- - C:\Windows\SysWOW64\cmd.exe
    "C:\Windows\system32\cmd.exe" /c del "C:\Users\Admin\AppData\Local\Temp\HOURB.EXE" >> NUL
    3⤵
    PID:3452
- C:\Users\Admin\Documents\MSUPDATE\msdslcs.exe
  "C:\Users\Admin\Documents\MSUPDATE\msdslcs.exe"
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:1996
- - C:\Program Files (x86)\Internet Explorer\iexplore.exe
    "C:\Program Files (x86)\Internet Explorer\iexplore.exe"
    3⤵
    PID:3284
- - C:\Windows\explorer.exe
    "C:\Windows\explorer.exe"
    3⤵
    PID:3088

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Winlogon Helper DLL

T1547.004

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Winlogon Helper DLL

T1547.004

Defense Evasion

Hide Artifacts

T1564

Hidden Files and Directories

T1564.001

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\HOURB.EXE

Filesize
57KB

MD5
7fc0fb347b7ce031d0fa292085fff13c

SHA1
f63fafcbeab1750528307720eb422a2e925d5647

SHA256
c27271f9efda81d2d7909bb7189266e22064d271f097a2d524a52e36ade9bca4

SHA512
b63d035edfac2a476cef586d896f75213582f22fa871486d00d362b585a341f34e730e878089910c76bcc56da6e9ec0245229c216045844028ab66174c771bce

Download Submit
C:\Users\Admin\Documents\MSUPDATE\msdslcs.exe

Filesize
389KB

MD5
4f84afc78b877412709a522bc52aefbf

SHA1
6518b24623cea124f9e954df4af260070b5ef4e2

SHA256
87c17d033b53cca26f96f6058b1629037c632fd036f2ec1c988846b0c08ceef8

SHA512
e36d2b7788d3cccf6f256a5e5bc0545b8dceb69f9197e76ea2b5008d24dc7b6437a05d82c735c50dcdf3f5f6d8fa1ac67f9edc10b8f8089c6d58935e11336423

Download Submit
memory/1996-90-0x0000000000400000-0x00000000004F4000-memory.dmp

Filesize
976KB

Download
memory/1996-82-0x0000000000400000-0x00000000004F4000-memory.dmp

Filesize
976KB

Download
memory/1996-96-0x0000000000400000-0x00000000004F4000-memory.dmp

Filesize
976KB

Download
memory/1996-95-0x0000000000400000-0x00000000004F4000-memory.dmp

Filesize
976KB

Download
memory/1996-94-0x0000000000400000-0x00000000004F4000-memory.dmp

Filesize
976KB

Download
memory/1996-78-0x0000000000400000-0x00000000004F4000-memory.dmp

Filesize
976KB

Download
memory/1996-80-0x0000000000400000-0x00000000004F4000-memory.dmp

Filesize
976KB

Download
memory/1996-91-0x0000000000400000-0x00000000004F4000-memory.dmp

Filesize
976KB

Download
memory/1996-84-0x0000000000400000-0x00000000004F4000-memory.dmp

Filesize
976KB

Download
memory/1996-93-0x0000000000400000-0x00000000004F4000-memory.dmp

Filesize
976KB

Download
memory/1996-87-0x0000000000400000-0x00000000004F4000-memory.dmp

Filesize
976KB

Download
memory/1996-88-0x0000000000400000-0x00000000004F4000-memory.dmp

Filesize
976KB

Download
memory/1996-89-0x0000000000400000-0x00000000004F4000-memory.dmp

Filesize
976KB

Download
memory/1996-92-0x0000000000400000-0x00000000004F4000-memory.dmp

Filesize
976KB

Download
memory/3464-86-0x0000000000400000-0x0000000000460000-memory.dmp

Filesize
384KB

Download
memory/3464-16-0x0000000000400000-0x0000000000460000-memory.dmp

Filesize
384KB

Download
memory/3464-77-0x0000000000400000-0x0000000000460000-memory.dmp

Filesize
384KB

Download
memory/5036-0-0x0000000000400000-0x00000000004F4000-memory.dmp

Filesize
976KB

Download
memory/5036-76-0x0000000000400000-0x00000000004F4000-memory.dmp

Filesize
976KB

Download
memory/5036-1-0x0000000000BF0000-0x0000000000BF1000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads