darkcomet | 9729d469d2ad9b246ebcc280bb4a08724b99224b4fe06df72ef47eb160c7e8f7

General

Target

fa1b9a2a660dc1d04ebabdc422562c22_JaffaCakes118.exe
Size

740KB
MD5

fa1b9a2a660dc1d04ebabdc422562c22
SHA1

4ddfa633a9c1eb62d1a401f299421f3d012fa839
SHA256

9729d469d2ad9b246ebcc280bb4a08724b99224b4fe06df72ef47eb160c7e8f7
SHA512

f3edda1905946b2829c4505b5bcc2c9e20f06b6eb546db97486a66754e33c1cd7a3466838f565fbe24b32a38c69abc239f136c8791c976bbf0996e02538d7eab
SSDEEP

12288:DCSGJkSVSv8md2/4U9A6Ul0WnM4FfC/TA+G8388r5Jz6UlIDf3yIUIPM:DCSGeCXmo/4MA6Ulz5C/sh8388WUlIbE

Score

10^/10

darkcomet 8-2-2015 persistence rat trojan

Malware Config

Extracted

Family

darkcomet

Botnet

8-2-2015

C2

127.0.0.1:9999

evileasy.ddns.net:9999

Mutex

DC_MUTEX-JXEPVLG

Attributes

InstallPath
System32\svchost.exe
gencode
YBPxt5KtujGp
install
true
offline_keylogger
false
persistence
true
reg_key
Svchost

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

Processes:

1.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\UserInit = "C:\\Windows\\system32\\userinit.exe,C:\\Windows\\System32\\YBPxt5KtujGp\\svchost.exe"	1.exe

Executes dropped EXE 1 IoCs

Processes:

1.exe

pid process

2852 1.exe

pid	process
2852	1.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

1.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2248906074-2862704502-246302768-1000\Software\Microsoft\Windows\CurrentVersion\Run\Svchost = "C:\\Windows\\System32\\YBPxt5KtujGp\\svchost.exe"	1.exe

Drops file in System32 directory 4 IoCs

Processes:

1.exe

description	ioc	process
File opened for modification	C:\Windows\SysWOW64\YBPxt5KtujGp\	1.exe
File created	C:\Windows\SysWOW64\svchost.exe	1.exe
File created	C:\Windows\SysWOW64\YBPxt5KtujGp\svchost.exe	1.exe
File opened for modification	C:\Windows\SysWOW64\YBPxt5KtujGp\svchost.exe	1.exe

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

System Information Discovery
T1082

Suspicious use of AdjustPrivilegeToken 24 IoCs

Processes:

fa1b9a2a660dc1d04ebabdc422562c22_JaffaCakes118.exe1.exe

description	pid	process
Token: SeDebugPrivilege	3028	fa1b9a2a660dc1d04ebabdc422562c22_JaffaCakes118.exe
Token: SeIncreaseQuotaPrivilege	2852	1.exe
Token: SeSecurityPrivilege	2852	1.exe
Token: SeTakeOwnershipPrivilege	2852	1.exe
Token: SeLoadDriverPrivilege	2852	1.exe
Token: SeSystemProfilePrivilege	2852	1.exe
Token: SeSystemtimePrivilege	2852	1.exe
Token: SeProfSingleProcessPrivilege	2852	1.exe
Token: SeIncBasePriorityPrivilege	2852	1.exe
Token: SeCreatePagefilePrivilege	2852	1.exe
Token: SeBackupPrivilege	2852	1.exe
Token: SeRestorePrivilege	2852	1.exe
Token: SeShutdownPrivilege	2852	1.exe
Token: SeDebugPrivilege	2852	1.exe
Token: SeSystemEnvironmentPrivilege	2852	1.exe
Token: SeChangeNotifyPrivilege	2852	1.exe
Token: SeRemoteShutdownPrivilege	2852	1.exe
Token: SeUndockPrivilege	2852	1.exe
Token: SeManageVolumePrivilege	2852	1.exe
Token: SeImpersonatePrivilege	2852	1.exe
Token: SeCreateGlobalPrivilege	2852	1.exe
Token: 33	2852	1.exe
Token: 34	2852	1.exe
Token: 35	2852	1.exe

Suspicious use of WriteProcessMemory 15 IoCs

Processes:

fa1b9a2a660dc1d04ebabdc422562c22_JaffaCakes118.exe1.exe

description	pid	process	target process
PID 3028 wrote to memory of 2852	3028	fa1b9a2a660dc1d04ebabdc422562c22_JaffaCakes118.exe	1.exe
PID 3028 wrote to memory of 2852	3028	fa1b9a2a660dc1d04ebabdc422562c22_JaffaCakes118.exe	1.exe
PID 3028 wrote to memory of 2852	3028	fa1b9a2a660dc1d04ebabdc422562c22_JaffaCakes118.exe	1.exe
PID 3028 wrote to memory of 2852	3028	fa1b9a2a660dc1d04ebabdc422562c22_JaffaCakes118.exe	1.exe
PID 2852 wrote to memory of 2656	2852	1.exe	notepad.exe
PID 2852 wrote to memory of 2656	2852	1.exe	notepad.exe
PID 2852 wrote to memory of 2656	2852	1.exe	notepad.exe
PID 2852 wrote to memory of 2656	2852	1.exe	notepad.exe
PID 2852 wrote to memory of 2656	2852	1.exe	notepad.exe
PID 2852 wrote to memory of 2656	2852	1.exe	notepad.exe
PID 2852 wrote to memory of 2656	2852	1.exe	notepad.exe
PID 2852 wrote to memory of 2656	2852	1.exe	notepad.exe
PID 2852 wrote to memory of 2656	2852	1.exe	notepad.exe
PID 2852 wrote to memory of 2656	2852	1.exe	notepad.exe
PID 2852 wrote to memory of 2656	2852	1.exe	notepad.exe

C:\Users\Admin\AppData\Local\Temp\fa1b9a2a660dc1d04ebabdc422562c22_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\fa1b9a2a660dc1d04ebabdc422562c22_JaffaCakes118.exe"
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3028

C:\Users\Admin\AppData\Local\Temp\1.exe
"C:\Users\Admin\AppData\Local\Temp\1.exe"
2⤵
- Modifies WinLogon for persistence
- Executes dropped EXE
- Adds Run key to start application
- Drops file in System32 directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2852

C:\Windows\SysWOW64\notepad.exe
notepad
3⤵
PID:2656

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

2

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Winlogon Helper DLL

1

T1547.004

Privilege Escalation

Boot or Logon Autostart Execution

2

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Winlogon Helper DLL

1

T1547.004

Defense Evasion

Modify Registry

2

T1112

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

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Downloads

C:\Users\Admin\AppData\Local\Temp\1.exe
Filesize
756KB

MD5
3e367a8676879b445ebf3a062e54d28f

SHA1
b849b9598bd643b7f0f039d9391ddf1fecfeaf31

SHA256
d5b6fb099dbd8e73e4e9911afd3da200d1407f78324e50c5350ecca949dd9691

SHA512
b3e90563379dc75891a83705528ec615f91188dbe54171be9f67dea9f81e577a989c93e11ed9610d218faf162b4b1a41ad42585003572f95d457a14700bac1a7

Download Submit
memory/2656-17-0x0000000000080000-0x0000000000081000-memory.dmp

Filesize
4KB

Download
memory/2852-13-0x0000000000260000-0x0000000000261000-memory.dmp

Filesize
4KB

Download
memory/2852-27-0x0000000000400000-0x00000000004CA000-memory.dmp

Filesize
808KB

Download
memory/2852-29-0x0000000000260000-0x0000000000261000-memory.dmp

Filesize
4KB

Download
memory/3028-0-0x000007FEF5D30000-0x000007FEF66CD000-memory.dmp

Filesize
9.6MB

Download
memory/3028-1-0x0000000000AC0000-0x0000000000B40000-memory.dmp

Filesize
512KB

Download
memory/3028-2-0x000007FEF5D30000-0x000007FEF66CD000-memory.dmp

Filesize
9.6MB

Download
memory/3028-3-0x0000000000AC0000-0x0000000000B40000-memory.dmp

Filesize
512KB

Download
memory/3028-4-0x000000001B310000-0x000000001B414000-memory.dmp

Filesize
1.0MB

Download
memory/3028-12-0x000007FEF5D30000-0x000007FEF66CD000-memory.dmp

Filesize
9.6MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

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Downloads