darkcomet | a4680f71a2c0e4c5a18ab267ab982fbe09e29f6dcb0e5a78d2a1f7bde36e508d

Analysis

max time kernel
148s
max time network
145s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
15-10-2024 16:49

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General

Target

48ec0a901bd97559d139f86d69bee34b_JaffaCakes118.exe
Size

260KB
MD5

48ec0a901bd97559d139f86d69bee34b
SHA1

dc72ab37041cb5d5b0bed3e6c2f7a1c86f65f860
SHA256

a4680f71a2c0e4c5a18ab267ab982fbe09e29f6dcb0e5a78d2a1f7bde36e508d
SHA512

5811f1dd8014ce5c165a2e72a4159cd4753fadb8299e54520926a1120a970aabb63bbc8543cddc57541c0e4ad933be2b67b7e7dabc00a798de4da384feec7cf3
SSDEEP

6144:WD7cY2fgssM7Wirg9KXylmRiL+QMeC/i6isqX7UovnONztByipwxZ:Wl8E4w5huat7UovONzbXw

Score

10^/10

darkcomet server discovery evasion persistence rat trojan upx

Malware Config

Extracted

Family

darkcomet

Botnet

Server

74.67.204.217:1604

Mutex

DC_MUTEX-K3RB92Y

Attributes

InstallPath
MSDCSC\msdcsc.exe
gencode
jUVNG81kyjy5
install
true
offline_keylogger
true
persistence
true
reg_key
MicroUpdate

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

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\\MSDCSC\\msdcsc.exe"	48ec0a901bd97559d139f86d69bee34b_JaffaCakes118.exe

Disables Task Manager via registry modification
evasion

Drops file in Drivers directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\system32\drivers\etc\hosts	48ec0a901bd97559d139f86d69bee34b_JaffaCakes118.exe

Executes dropped EXE 1 IoCs

pid	Process
2152	msdcsc.exe

Loads dropped DLL 2 IoCs

pid	Process
2524	48ec0a901bd97559d139f86d69bee34b_JaffaCakes118.exe
2524	48ec0a901bd97559d139f86d69bee34b_JaffaCakes118.exe

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-1-5-21-3533259084-2542256011-65585152-1000\Software\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\Documents\\MSDCSC\\msdcsc.exe"	48ec0a901bd97559d139f86d69bee34b_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3533259084-2542256011-65585152-1000\Software\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\Documents\\MSDCSC\\msdcsc.exe"	msdcsc.exe

UPX packed file 7 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2524-0-0x0000000000400000-0x00000000004BD000-memory.dmp	upx
behavioral1/files/0x000800000001925c-12.dat	upx
behavioral1/memory/2152-16-0x0000000000400000-0x00000000004BD000-memory.dmp	upx
behavioral1/memory/2524-14-0x0000000000400000-0x00000000004BD000-memory.dmp	upx
behavioral1/memory/2152-18-0x0000000000400000-0x00000000004BD000-memory.dmp	upx
behavioral1/memory/2152-19-0x0000000000400000-0x00000000004BD000-memory.dmp	upx
behavioral1/memory/2152-21-0x0000000000400000-0x00000000004BD000-memory.dmp	upx

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

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	48ec0a901bd97559d139f86d69bee34b_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	msdcsc.exe

Suspicious use of AdjustPrivilegeToken 46 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	2524	48ec0a901bd97559d139f86d69bee34b_JaffaCakes118.exe
Token: SeSecurityPrivilege	2524	48ec0a901bd97559d139f86d69bee34b_JaffaCakes118.exe
Token: SeTakeOwnershipPrivilege	2524	48ec0a901bd97559d139f86d69bee34b_JaffaCakes118.exe
Token: SeLoadDriverPrivilege	2524	48ec0a901bd97559d139f86d69bee34b_JaffaCakes118.exe
Token: SeSystemProfilePrivilege	2524	48ec0a901bd97559d139f86d69bee34b_JaffaCakes118.exe
Token: SeSystemtimePrivilege	2524	48ec0a901bd97559d139f86d69bee34b_JaffaCakes118.exe
Token: SeProfSingleProcessPrivilege	2524	48ec0a901bd97559d139f86d69bee34b_JaffaCakes118.exe
Token: SeIncBasePriorityPrivilege	2524	48ec0a901bd97559d139f86d69bee34b_JaffaCakes118.exe
Token: SeCreatePagefilePrivilege	2524	48ec0a901bd97559d139f86d69bee34b_JaffaCakes118.exe
Token: SeBackupPrivilege	2524	48ec0a901bd97559d139f86d69bee34b_JaffaCakes118.exe
Token: SeRestorePrivilege	2524	48ec0a901bd97559d139f86d69bee34b_JaffaCakes118.exe
Token: SeShutdownPrivilege	2524	48ec0a901bd97559d139f86d69bee34b_JaffaCakes118.exe
Token: SeDebugPrivilege	2524	48ec0a901bd97559d139f86d69bee34b_JaffaCakes118.exe
Token: SeSystemEnvironmentPrivilege	2524	48ec0a901bd97559d139f86d69bee34b_JaffaCakes118.exe
Token: SeChangeNotifyPrivilege	2524	48ec0a901bd97559d139f86d69bee34b_JaffaCakes118.exe
Token: SeRemoteShutdownPrivilege	2524	48ec0a901bd97559d139f86d69bee34b_JaffaCakes118.exe
Token: SeUndockPrivilege	2524	48ec0a901bd97559d139f86d69bee34b_JaffaCakes118.exe
Token: SeManageVolumePrivilege	2524	48ec0a901bd97559d139f86d69bee34b_JaffaCakes118.exe
Token: SeImpersonatePrivilege	2524	48ec0a901bd97559d139f86d69bee34b_JaffaCakes118.exe
Token: SeCreateGlobalPrivilege	2524	48ec0a901bd97559d139f86d69bee34b_JaffaCakes118.exe
Token: 33	2524	48ec0a901bd97559d139f86d69bee34b_JaffaCakes118.exe
Token: 34	2524	48ec0a901bd97559d139f86d69bee34b_JaffaCakes118.exe
Token: 35	2524	48ec0a901bd97559d139f86d69bee34b_JaffaCakes118.exe
Token: SeIncreaseQuotaPrivilege	2152	msdcsc.exe
Token: SeSecurityPrivilege	2152	msdcsc.exe
Token: SeTakeOwnershipPrivilege	2152	msdcsc.exe
Token: SeLoadDriverPrivilege	2152	msdcsc.exe
Token: SeSystemProfilePrivilege	2152	msdcsc.exe
Token: SeSystemtimePrivilege	2152	msdcsc.exe
Token: SeProfSingleProcessPrivilege	2152	msdcsc.exe
Token: SeIncBasePriorityPrivilege	2152	msdcsc.exe
Token: SeCreatePagefilePrivilege	2152	msdcsc.exe
Token: SeBackupPrivilege	2152	msdcsc.exe
Token: SeRestorePrivilege	2152	msdcsc.exe
Token: SeShutdownPrivilege	2152	msdcsc.exe
Token: SeDebugPrivilege	2152	msdcsc.exe
Token: SeSystemEnvironmentPrivilege	2152	msdcsc.exe
Token: SeChangeNotifyPrivilege	2152	msdcsc.exe
Token: SeRemoteShutdownPrivilege	2152	msdcsc.exe
Token: SeUndockPrivilege	2152	msdcsc.exe
Token: SeManageVolumePrivilege	2152	msdcsc.exe
Token: SeImpersonatePrivilege	2152	msdcsc.exe
Token: SeCreateGlobalPrivilege	2152	msdcsc.exe
Token: 33	2152	msdcsc.exe
Token: 34	2152	msdcsc.exe
Token: 35	2152	msdcsc.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2152	msdcsc.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2524 wrote to memory of 2152	2524	48ec0a901bd97559d139f86d69bee34b_JaffaCakes118.exe	30
PID 2524 wrote to memory of 2152	2524	48ec0a901bd97559d139f86d69bee34b_JaffaCakes118.exe	30
PID 2524 wrote to memory of 2152	2524	48ec0a901bd97559d139f86d69bee34b_JaffaCakes118.exe	30
PID 2524 wrote to memory of 2152	2524	48ec0a901bd97559d139f86d69bee34b_JaffaCakes118.exe	30

C:\Users\Admin\AppData\Local\Temp\48ec0a901bd97559d139f86d69bee34b_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\48ec0a901bd97559d139f86d69bee34b_JaffaCakes118.exe"
1⤵
- Modifies WinLogon for persistence
- Drops file in Drivers directory
- Loads dropped DLL
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2524
- C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
  "C:\Users\Admin\Documents\MSDCSC\msdcsc.exe"
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  PID:2152

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

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\Documents\MSDCSC\msdcsc.exe

Filesize
260KB

MD5
48ec0a901bd97559d139f86d69bee34b

SHA1
dc72ab37041cb5d5b0bed3e6c2f7a1c86f65f860

SHA256
a4680f71a2c0e4c5a18ab267ab982fbe09e29f6dcb0e5a78d2a1f7bde36e508d

SHA512
5811f1dd8014ce5c165a2e72a4159cd4753fadb8299e54520926a1120a970aabb63bbc8543cddc57541c0e4ad933be2b67b7e7dabc00a798de4da384feec7cf3

Download Submit
memory/2152-16-0x0000000000400000-0x00000000004BD000-memory.dmp

Filesize
756KB

Download
memory/2152-18-0x0000000000400000-0x00000000004BD000-memory.dmp

Filesize
756KB

Download
memory/2152-19-0x0000000000400000-0x00000000004BD000-memory.dmp

Filesize
756KB

Download
memory/2152-21-0x0000000000400000-0x00000000004BD000-memory.dmp

Filesize
756KB

Download
memory/2524-0-0x0000000000400000-0x00000000004BD000-memory.dmp

Filesize
756KB

Download
memory/2524-1-0x0000000000270000-0x0000000000271000-memory.dmp

Filesize
4KB

Download
memory/2524-15-0x0000000003D70000-0x0000000003E2D000-memory.dmp

Filesize
756KB

Download
memory/2524-14-0x0000000000400000-0x00000000004BD000-memory.dmp

Filesize
756KB

Download
memory/2524-17-0x0000000003D70000-0x0000000003E2D000-memory.dmp

Filesize
756KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads