darkcomet | a60e516a11b7f8d030cd393e2ea4e6d4b25fc0cf7b5bdf1a4353eaae28c81e99

Analysis

max time kernel
130s
max time network
145s
platform
windows7_x64
resource
win7-20231023-en
resource tags

arch:x64arch:x86image:win7-20231023-enlocale:en-usos:windows7-x64system
submitted
31/10/2023, 08:39

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General

Target

NEAS.bc64e423e73460f223693097d456d920.exe
Size

658KB
MD5

bc64e423e73460f223693097d456d920
SHA1

966579a9b8981e9316738b60a7dace44ab055179
SHA256

a60e516a11b7f8d030cd393e2ea4e6d4b25fc0cf7b5bdf1a4353eaae28c81e99
SHA512

24ca0b49f1c5b476651dd8fd865aef40acaafa7410e1e51cc98477d2e3f25154cc827af3b5228bd8f04abe64591675afc36a116d084794b01ae047f04f9c07c9
SSDEEP

12288:y9HFJ9rJxRX1uVVjoaWSoynxdO1FVBaOiRZTERfIhNkNCCLo9Ek5C/hO:eZ1xuVVjfFoynPaVBUR8f+kN10EBQ

Score

10^/10

darkcomet guest16 persistence rat trojan

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

slexqq.duckdns.org:1604

Mutex

DC_MUTEX-TH3JT6M

Attributes

InstallPath
MSDCSC\msdcsc.exe
gencode
jorWB3wvZUMQ
install
true
offline_keylogger
true
persistence
false
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"	NEAS.bc64e423e73460f223693097d456d920.exe

Executes dropped EXE 1 IoCs

pid	Process
2640	msdcsc.exe

Loads dropped DLL 2 IoCs

pid	Process
2904	NEAS.bc64e423e73460f223693097d456d920.exe
2904	NEAS.bc64e423e73460f223693097d456d920.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2085049433-1067986815-1244098655-1000\Software\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\Documents\\MSDCSC\\msdcsc.exe"	NEAS.bc64e423e73460f223693097d456d920.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2640 set thread context of 2700	2640	msdcsc.exe	29

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

System Information Discovery
T1082

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	2904	NEAS.bc64e423e73460f223693097d456d920.exe
Token: SeSecurityPrivilege	2904	NEAS.bc64e423e73460f223693097d456d920.exe
Token: SeTakeOwnershipPrivilege	2904	NEAS.bc64e423e73460f223693097d456d920.exe
Token: SeLoadDriverPrivilege	2904	NEAS.bc64e423e73460f223693097d456d920.exe
Token: SeSystemProfilePrivilege	2904	NEAS.bc64e423e73460f223693097d456d920.exe
Token: SeSystemtimePrivilege	2904	NEAS.bc64e423e73460f223693097d456d920.exe
Token: SeProfSingleProcessPrivilege	2904	NEAS.bc64e423e73460f223693097d456d920.exe
Token: SeIncBasePriorityPrivilege	2904	NEAS.bc64e423e73460f223693097d456d920.exe
Token: SeCreatePagefilePrivilege	2904	NEAS.bc64e423e73460f223693097d456d920.exe
Token: SeBackupPrivilege	2904	NEAS.bc64e423e73460f223693097d456d920.exe
Token: SeRestorePrivilege	2904	NEAS.bc64e423e73460f223693097d456d920.exe
Token: SeShutdownPrivilege	2904	NEAS.bc64e423e73460f223693097d456d920.exe
Token: SeDebugPrivilege	2904	NEAS.bc64e423e73460f223693097d456d920.exe
Token: SeSystemEnvironmentPrivilege	2904	NEAS.bc64e423e73460f223693097d456d920.exe
Token: SeChangeNotifyPrivilege	2904	NEAS.bc64e423e73460f223693097d456d920.exe
Token: SeRemoteShutdownPrivilege	2904	NEAS.bc64e423e73460f223693097d456d920.exe
Token: SeUndockPrivilege	2904	NEAS.bc64e423e73460f223693097d456d920.exe
Token: SeManageVolumePrivilege	2904	NEAS.bc64e423e73460f223693097d456d920.exe
Token: SeImpersonatePrivilege	2904	NEAS.bc64e423e73460f223693097d456d920.exe
Token: SeCreateGlobalPrivilege	2904	NEAS.bc64e423e73460f223693097d456d920.exe
Token: 33	2904	NEAS.bc64e423e73460f223693097d456d920.exe
Token: 34	2904	NEAS.bc64e423e73460f223693097d456d920.exe
Token: 35	2904	NEAS.bc64e423e73460f223693097d456d920.exe
Token: SeIncreaseQuotaPrivilege	2640	msdcsc.exe
Token: SeSecurityPrivilege	2640	msdcsc.exe
Token: SeTakeOwnershipPrivilege	2640	msdcsc.exe
Token: SeLoadDriverPrivilege	2640	msdcsc.exe
Token: SeSystemProfilePrivilege	2640	msdcsc.exe
Token: SeSystemtimePrivilege	2640	msdcsc.exe
Token: SeProfSingleProcessPrivilege	2640	msdcsc.exe
Token: SeIncBasePriorityPrivilege	2640	msdcsc.exe
Token: SeCreatePagefilePrivilege	2640	msdcsc.exe
Token: SeBackupPrivilege	2640	msdcsc.exe
Token: SeRestorePrivilege	2640	msdcsc.exe
Token: SeShutdownPrivilege	2640	msdcsc.exe
Token: SeDebugPrivilege	2640	msdcsc.exe
Token: SeSystemEnvironmentPrivilege	2640	msdcsc.exe
Token: SeChangeNotifyPrivilege	2640	msdcsc.exe
Token: SeRemoteShutdownPrivilege	2640	msdcsc.exe
Token: SeUndockPrivilege	2640	msdcsc.exe
Token: SeManageVolumePrivilege	2640	msdcsc.exe
Token: SeImpersonatePrivilege	2640	msdcsc.exe
Token: SeCreateGlobalPrivilege	2640	msdcsc.exe
Token: 33	2640	msdcsc.exe
Token: 34	2640	msdcsc.exe
Token: 35	2640	msdcsc.exe
Token: SeIncreaseQuotaPrivilege	2700	iexplore.exe
Token: SeSecurityPrivilege	2700	iexplore.exe
Token: SeTakeOwnershipPrivilege	2700	iexplore.exe
Token: SeLoadDriverPrivilege	2700	iexplore.exe
Token: SeSystemProfilePrivilege	2700	iexplore.exe
Token: SeSystemtimePrivilege	2700	iexplore.exe
Token: SeProfSingleProcessPrivilege	2700	iexplore.exe
Token: SeIncBasePriorityPrivilege	2700	iexplore.exe
Token: SeCreatePagefilePrivilege	2700	iexplore.exe
Token: SeBackupPrivilege	2700	iexplore.exe
Token: SeRestorePrivilege	2700	iexplore.exe
Token: SeShutdownPrivilege	2700	iexplore.exe
Token: SeDebugPrivilege	2700	iexplore.exe
Token: SeSystemEnvironmentPrivilege	2700	iexplore.exe
Token: SeChangeNotifyPrivilege	2700	iexplore.exe
Token: SeRemoteShutdownPrivilege	2700	iexplore.exe
Token: SeUndockPrivilege	2700	iexplore.exe
Token: SeManageVolumePrivilege	2700	iexplore.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2700	iexplore.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 2904 wrote to memory of 2640	2904	NEAS.bc64e423e73460f223693097d456d920.exe	28
PID 2904 wrote to memory of 2640	2904	NEAS.bc64e423e73460f223693097d456d920.exe	28
PID 2904 wrote to memory of 2640	2904	NEAS.bc64e423e73460f223693097d456d920.exe	28
PID 2904 wrote to memory of 2640	2904	NEAS.bc64e423e73460f223693097d456d920.exe	28
PID 2640 wrote to memory of 2700	2640	msdcsc.exe	29
PID 2640 wrote to memory of 2700	2640	msdcsc.exe	29
PID 2640 wrote to memory of 2700	2640	msdcsc.exe	29
PID 2640 wrote to memory of 2700	2640	msdcsc.exe	29
PID 2640 wrote to memory of 2700	2640	msdcsc.exe	29
PID 2640 wrote to memory of 2700	2640	msdcsc.exe	29

C:\Users\Admin\AppData\Local\Temp\NEAS.bc64e423e73460f223693097d456d920.exe
"C:\Users\Admin\AppData\Local\Temp\NEAS.bc64e423e73460f223693097d456d920.exe"
1⤵
- Modifies WinLogon for persistence
- Loads dropped DLL
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2904
- C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
  "C:\Users\Admin\Documents\MSDCSC\msdcsc.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2640
- - C:\Program Files (x86)\Internet Explorer\iexplore.exe
    "C:\Program Files (x86)\Internet Explorer\iexplore.exe"
    3⤵
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of SetWindowsHookEx
    PID:2700

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

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

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

Filesize
658KB

MD5
bc64e423e73460f223693097d456d920

SHA1
966579a9b8981e9316738b60a7dace44ab055179

SHA256
a60e516a11b7f8d030cd393e2ea4e6d4b25fc0cf7b5bdf1a4353eaae28c81e99

SHA512
24ca0b49f1c5b476651dd8fd865aef40acaafa7410e1e51cc98477d2e3f25154cc827af3b5228bd8f04abe64591675afc36a116d084794b01ae047f04f9c07c9

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

Filesize
658KB

MD5
bc64e423e73460f223693097d456d920

SHA1
966579a9b8981e9316738b60a7dace44ab055179

SHA256
a60e516a11b7f8d030cd393e2ea4e6d4b25fc0cf7b5bdf1a4353eaae28c81e99

SHA512
24ca0b49f1c5b476651dd8fd865aef40acaafa7410e1e51cc98477d2e3f25154cc827af3b5228bd8f04abe64591675afc36a116d084794b01ae047f04f9c07c9

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

Filesize
658KB

MD5
bc64e423e73460f223693097d456d920

SHA1
966579a9b8981e9316738b60a7dace44ab055179

SHA256
a60e516a11b7f8d030cd393e2ea4e6d4b25fc0cf7b5bdf1a4353eaae28c81e99

SHA512
24ca0b49f1c5b476651dd8fd865aef40acaafa7410e1e51cc98477d2e3f25154cc827af3b5228bd8f04abe64591675afc36a116d084794b01ae047f04f9c07c9

Download Submit
\Users\Admin\Documents\MSDCSC\msdcsc.exe

Filesize
658KB

MD5
bc64e423e73460f223693097d456d920

SHA1
966579a9b8981e9316738b60a7dace44ab055179

SHA256
a60e516a11b7f8d030cd393e2ea4e6d4b25fc0cf7b5bdf1a4353eaae28c81e99

SHA512
24ca0b49f1c5b476651dd8fd865aef40acaafa7410e1e51cc98477d2e3f25154cc827af3b5228bd8f04abe64591675afc36a116d084794b01ae047f04f9c07c9

Download Submit
\Users\Admin\Documents\MSDCSC\msdcsc.exe

Filesize
658KB

MD5
bc64e423e73460f223693097d456d920

SHA1
966579a9b8981e9316738b60a7dace44ab055179

SHA256
a60e516a11b7f8d030cd393e2ea4e6d4b25fc0cf7b5bdf1a4353eaae28c81e99

SHA512
24ca0b49f1c5b476651dd8fd865aef40acaafa7410e1e51cc98477d2e3f25154cc827af3b5228bd8f04abe64591675afc36a116d084794b01ae047f04f9c07c9

Download Submit
memory/2640-11-0x0000000000240000-0x0000000000241000-memory.dmp

Filesize
4KB

Download
memory/2640-14-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2700-13-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2904-0-0x0000000000250000-0x0000000000251000-memory.dmp

Filesize
4KB

Download
memory/2904-15-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads