darkcomet | ce6c774bcbcb08ee2e11a539a45e70afc1282d04970d52b42020d8c761173b49

Analysis

max time kernel
192s
max time network
218s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
17-04-2024 12:56

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General

Target

eddb245a5dc0d8f70ffb66c033cbaa38ea4639d900739c5580bc37d86f258816.exe
Size

350KB
MD5

220fd88ed61a81dd7238c8385fc8c5f7
SHA1

b4c6ea98e705912f38816bd4aff085871b1bae80
SHA256

eddb245a5dc0d8f70ffb66c033cbaa38ea4639d900739c5580bc37d86f258816
SHA512

355aad3cc89c3d6acaf53a7091903d6b0b4092e1f4c7bc6c41255a7aafce00d3807ddad4b5c027a0437938e17278f7a8d591a085b4e014fff8d6165fdeb6838f
SSDEEP

6144:hSncRldcNYS996KFifeVjBpeExgVTFSXFoMc5RhCaL37wxM:Q4jcW7KEZlPzCy37

Score

10^/10

darkcomet guest16 evasion persistence rat trojan upx

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

sussynv83dj893.duckdns.org:1604

Mutex

DC_MUTEX-RU83HNV

Attributes

InstallPath
MSDCSC\msdcsc.exe
gencode
MFz6heXQQ4jP
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

Processes:

ASDKODGS.EXE

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"	ASDKODGS.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

Processes:

attrib.exeattrib.exe

pid	Process
2800	attrib.exe
2572	attrib.exe

Executes dropped EXE 3 IoCs

Processes:

ASDKODGS.EXEZBYTE2.0.EXEmsdcsc.exe

pid	Process
2448	ASDKODGS.EXE
3032	ZBYTE2.0.EXE
576	msdcsc.exe

Loads dropped DLL 5 IoCs

Processes:

eddb245a5dc0d8f70ffb66c033cbaa38ea4639d900739c5580bc37d86f258816.exeASDKODGS.EXE

pid	Process
2444	eddb245a5dc0d8f70ffb66c033cbaa38ea4639d900739c5580bc37d86f258816.exe
2444	eddb245a5dc0d8f70ffb66c033cbaa38ea4639d900739c5580bc37d86f258816.exe
2444	eddb245a5dc0d8f70ffb66c033cbaa38ea4639d900739c5580bc37d86f258816.exe
2448	ASDKODGS.EXE
2448	ASDKODGS.EXE

UPX packed file 8 IoCs

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

upx

Processes:

resource	yara_rule
behavioral1/files/0x000b000000015a2c-2.dat	upx
behavioral1/memory/2448-12-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/576-64-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2448-66-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/576-68-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/576-73-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/576-74-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/576-80-0x0000000000400000-0x00000000004B7000-memory.dmp	upx

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

ASDKODGS.EXE

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2461186416-2307104501-1787948496-1000\Software\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\Documents\\MSDCSC\\msdcsc.exe"	ASDKODGS.EXE

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

System Information Discovery
T1082

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

msdcsc.exe

pid	Process
576	msdcsc.exe

Suspicious use of AdjustPrivilegeToken 46 IoCs

Processes:

ASDKODGS.EXEmsdcsc.exe

description	pid	Process
Token: SeIncreaseQuotaPrivilege	2448	ASDKODGS.EXE
Token: SeSecurityPrivilege	2448	ASDKODGS.EXE
Token: SeTakeOwnershipPrivilege	2448	ASDKODGS.EXE
Token: SeLoadDriverPrivilege	2448	ASDKODGS.EXE
Token: SeSystemProfilePrivilege	2448	ASDKODGS.EXE
Token: SeSystemtimePrivilege	2448	ASDKODGS.EXE
Token: SeProfSingleProcessPrivilege	2448	ASDKODGS.EXE
Token: SeIncBasePriorityPrivilege	2448	ASDKODGS.EXE
Token: SeCreatePagefilePrivilege	2448	ASDKODGS.EXE
Token: SeBackupPrivilege	2448	ASDKODGS.EXE
Token: SeRestorePrivilege	2448	ASDKODGS.EXE
Token: SeShutdownPrivilege	2448	ASDKODGS.EXE
Token: SeDebugPrivilege	2448	ASDKODGS.EXE
Token: SeSystemEnvironmentPrivilege	2448	ASDKODGS.EXE
Token: SeChangeNotifyPrivilege	2448	ASDKODGS.EXE
Token: SeRemoteShutdownPrivilege	2448	ASDKODGS.EXE
Token: SeUndockPrivilege	2448	ASDKODGS.EXE
Token: SeManageVolumePrivilege	2448	ASDKODGS.EXE
Token: SeImpersonatePrivilege	2448	ASDKODGS.EXE
Token: SeCreateGlobalPrivilege	2448	ASDKODGS.EXE
Token: 33	2448	ASDKODGS.EXE
Token: 34	2448	ASDKODGS.EXE
Token: 35	2448	ASDKODGS.EXE
Token: SeIncreaseQuotaPrivilege	576	msdcsc.exe
Token: SeSecurityPrivilege	576	msdcsc.exe
Token: SeTakeOwnershipPrivilege	576	msdcsc.exe
Token: SeLoadDriverPrivilege	576	msdcsc.exe
Token: SeSystemProfilePrivilege	576	msdcsc.exe
Token: SeSystemtimePrivilege	576	msdcsc.exe
Token: SeProfSingleProcessPrivilege	576	msdcsc.exe
Token: SeIncBasePriorityPrivilege	576	msdcsc.exe
Token: SeCreatePagefilePrivilege	576	msdcsc.exe
Token: SeBackupPrivilege	576	msdcsc.exe
Token: SeRestorePrivilege	576	msdcsc.exe
Token: SeShutdownPrivilege	576	msdcsc.exe
Token: SeDebugPrivilege	576	msdcsc.exe
Token: SeSystemEnvironmentPrivilege	576	msdcsc.exe
Token: SeChangeNotifyPrivilege	576	msdcsc.exe
Token: SeRemoteShutdownPrivilege	576	msdcsc.exe
Token: SeUndockPrivilege	576	msdcsc.exe
Token: SeManageVolumePrivilege	576	msdcsc.exe
Token: SeImpersonatePrivilege	576	msdcsc.exe
Token: SeCreateGlobalPrivilege	576	msdcsc.exe
Token: 33	576	msdcsc.exe
Token: 34	576	msdcsc.exe
Token: 35	576	msdcsc.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

msdcsc.exe

pid	Process
576	msdcsc.exe

Suspicious use of WriteProcessMemory 51 IoCs

Processes:

eddb245a5dc0d8f70ffb66c033cbaa38ea4639d900739c5580bc37d86f258816.exeASDKODGS.EXEcmd.execmd.exemsdcsc.exe

description	pid	Process	procid_target
PID 2444 wrote to memory of 2448	2444	eddb245a5dc0d8f70ffb66c033cbaa38ea4639d900739c5580bc37d86f258816.exe	29
PID 2444 wrote to memory of 2448	2444	eddb245a5dc0d8f70ffb66c033cbaa38ea4639d900739c5580bc37d86f258816.exe	29
PID 2444 wrote to memory of 2448	2444	eddb245a5dc0d8f70ffb66c033cbaa38ea4639d900739c5580bc37d86f258816.exe	29
PID 2444 wrote to memory of 2448	2444	eddb245a5dc0d8f70ffb66c033cbaa38ea4639d900739c5580bc37d86f258816.exe	29
PID 2444 wrote to memory of 3032	2444	eddb245a5dc0d8f70ffb66c033cbaa38ea4639d900739c5580bc37d86f258816.exe	30
PID 2444 wrote to memory of 3032	2444	eddb245a5dc0d8f70ffb66c033cbaa38ea4639d900739c5580bc37d86f258816.exe	30
PID 2444 wrote to memory of 3032	2444	eddb245a5dc0d8f70ffb66c033cbaa38ea4639d900739c5580bc37d86f258816.exe	30
PID 2444 wrote to memory of 3032	2444	eddb245a5dc0d8f70ffb66c033cbaa38ea4639d900739c5580bc37d86f258816.exe	30
PID 2448 wrote to memory of 684	2448	ASDKODGS.EXE	31
PID 2448 wrote to memory of 684	2448	ASDKODGS.EXE	31
PID 2448 wrote to memory of 684	2448	ASDKODGS.EXE	31
PID 2448 wrote to memory of 684	2448	ASDKODGS.EXE	31
PID 2448 wrote to memory of 784	2448	ASDKODGS.EXE	32
PID 2448 wrote to memory of 784	2448	ASDKODGS.EXE	32
PID 2448 wrote to memory of 784	2448	ASDKODGS.EXE	32
PID 2448 wrote to memory of 784	2448	ASDKODGS.EXE	32
PID 2448 wrote to memory of 576	2448	ASDKODGS.EXE	35
PID 2448 wrote to memory of 576	2448	ASDKODGS.EXE	35
PID 2448 wrote to memory of 576	2448	ASDKODGS.EXE	35
PID 2448 wrote to memory of 576	2448	ASDKODGS.EXE	35
PID 684 wrote to memory of 2800	684	cmd.exe	36
PID 684 wrote to memory of 2800	684	cmd.exe	36
PID 684 wrote to memory of 2800	684	cmd.exe	36
PID 684 wrote to memory of 2800	684	cmd.exe	36
PID 784 wrote to memory of 2572	784	cmd.exe	37
PID 784 wrote to memory of 2572	784	cmd.exe	37
PID 784 wrote to memory of 2572	784	cmd.exe	37
PID 784 wrote to memory of 2572	784	cmd.exe	37
PID 576 wrote to memory of 2944	576	msdcsc.exe	38
PID 576 wrote to memory of 2944	576	msdcsc.exe	38
PID 576 wrote to memory of 2944	576	msdcsc.exe	38
PID 576 wrote to memory of 2944	576	msdcsc.exe	38
PID 576 wrote to memory of 2944	576	msdcsc.exe	38
PID 576 wrote to memory of 2944	576	msdcsc.exe	38
PID 576 wrote to memory of 2944	576	msdcsc.exe	38
PID 576 wrote to memory of 2944	576	msdcsc.exe	38
PID 576 wrote to memory of 2944	576	msdcsc.exe	38
PID 576 wrote to memory of 2944	576	msdcsc.exe	38
PID 576 wrote to memory of 2944	576	msdcsc.exe	38
PID 576 wrote to memory of 2944	576	msdcsc.exe	38
PID 576 wrote to memory of 2944	576	msdcsc.exe	38
PID 576 wrote to memory of 2944	576	msdcsc.exe	38
PID 576 wrote to memory of 2944	576	msdcsc.exe	38
PID 576 wrote to memory of 2944	576	msdcsc.exe	38
PID 576 wrote to memory of 2944	576	msdcsc.exe	38
PID 576 wrote to memory of 2944	576	msdcsc.exe	38
PID 576 wrote to memory of 2944	576	msdcsc.exe	38
PID 576 wrote to memory of 2944	576	msdcsc.exe	38
PID 576 wrote to memory of 2944	576	msdcsc.exe	38
PID 576 wrote to memory of 2944	576	msdcsc.exe	38
PID 576 wrote to memory of 2944	576	msdcsc.exe	38

Views/modifies file attributes 1 TTPs 2 IoCs

evasion

Hidden Files and Directories

T1564.001

Processes:

attrib.exeattrib.exe

pid	Process
2800	attrib.exe
2572	attrib.exe

C:\Users\Admin\AppData\Local\Temp\eddb245a5dc0d8f70ffb66c033cbaa38ea4639d900739c5580bc37d86f258816.exe
"C:\Users\Admin\AppData\Local\Temp\eddb245a5dc0d8f70ffb66c033cbaa38ea4639d900739c5580bc37d86f258816.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2444
- C:\Users\Admin\AppData\Local\Temp\ASDKODGS.EXE
  "C:\Users\Admin\AppData\Local\Temp\ASDKODGS.EXE"
  2⤵
  - Modifies WinLogon for persistence
  - Executes dropped EXE
  - Loads dropped DLL
  - Adds Run key to start application
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2448
- - C:\Windows\SysWOW64\cmd.exe
    "C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp\ASDKODGS.EXE" +s +h
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:684
  - - C:\Windows\SysWOW64\attrib.exe
      attrib "C:\Users\Admin\AppData\Local\Temp\ASDKODGS.EXE" +s +h
      4⤵
      Sets file to hidden
      Views/modifies file attributes
      PID:2800
- - C:\Windows\SysWOW64\cmd.exe
    "C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp" +s +h
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:784
  - - C:\Windows\SysWOW64\attrib.exe
      attrib "C:\Users\Admin\AppData\Local\Temp" +s +h
      4⤵
      Sets file to hidden
      Views/modifies file attributes
      PID:2572
- - C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
    "C:\Users\Admin\Documents\MSDCSC\msdcsc.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:576
  - - C:\Windows\SysWOW64\notepad.exe
      notepad
      4⤵
      PID:2944
- C:\Users\Admin\AppData\Local\Temp\ZBYTE2.0.EXE
  "C:\Users\Admin\AppData\Local\Temp\ZBYTE2.0.EXE"
  2⤵
  - Executes dropped EXE
  PID:3032

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

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

\Users\Admin\AppData\Local\Temp\ASDKODGS.EXE

Filesize
251KB

MD5
0055ec3943749262735d79fcb4f04119

SHA1
b2c2dce19536c945785534f9fa4b5062ec43d541

SHA256
85bfcf8f009f442c997e9aa5ddb9430fd8e55b98c1c6108e248d9aa901f15c0b

SHA512
72b1873565f9fe8c8ae273df2805f2f1a126581f67bdead56c6818637c9026d6ff7f36bc4280de58b18e9670b209006db404ee7122cd5fd830e6464590f3b807

Download Submit
\Users\Admin\AppData\Local\Temp\ZBYTE2.0.EXE

Filesize
46KB

MD5
fc90c2fb06b099a072bd23f4722c591d

SHA1
69c2f9af2391b3311ce344a922ac650b0f3456b9

SHA256
e0df4445f3486b15b57da921ddc15b3137a5f2eb035f34130bc51f6be16d747e

SHA512
c3e87df8217d421abe951492809c7a89a5aaae341242c03428731362cb4907801e21da4bc6271d455ca7280131c59f2cb0137b829556d9c2f2a944be471cd619

Download Submit
memory/576-73-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/576-68-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/576-74-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/576-65-0x00000000001D0000-0x00000000001D1000-memory.dmp

Filesize
4KB

Download
memory/576-64-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/576-80-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2444-8-0x0000000000F40000-0x0000000000FF7000-memory.dmp

Filesize
732KB

Download
memory/2448-63-0x00000000031D0000-0x0000000003287000-memory.dmp

Filesize
732KB

Download
memory/2448-66-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2448-18-0x0000000000240000-0x0000000000241000-memory.dmp

Filesize
4KB

Download
memory/2448-12-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2944-32-0x0000000000080000-0x0000000000081000-memory.dmp

Filesize
4KB

Download
memory/2944-61-0x00000000002C0000-0x00000000002C1000-memory.dmp

Filesize
4KB

Download
memory/3032-30-0x00000000000A0000-0x00000000000B4000-memory.dmp

Filesize
80KB

Download
memory/3032-71-0x0000000004B50000-0x0000000004B90000-memory.dmp

Filesize
256KB

Download
memory/3032-72-0x0000000004B50000-0x0000000004B90000-memory.dmp

Filesize
256KB

Download
memory/3032-69-0x0000000073CA0000-0x000000007438E000-memory.dmp

Filesize
6.9MB

Download
memory/3032-67-0x0000000004B50000-0x0000000004B90000-memory.dmp

Filesize
256KB

Download
memory/3032-76-0x0000000004B50000-0x0000000004B90000-memory.dmp

Filesize
256KB

Download
memory/3032-62-0x0000000073CA0000-0x000000007438E000-memory.dmp

Filesize
6.9MB

Download