darkcomet | 1fe57ec8aa73b0a0ec80fc3b2c508597724165cd2754b2589d974e917726dd34

Analysis

max time kernel
120s
max time network
118s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
08/01/2025, 23:31

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General

Target

1fe57ec8aa73b0a0ec80fc3b2c508597724165cd2754b2589d974e917726dd34N.exe
Size

300KB
MD5

7a20bc1617941753c2df045d10b2e9b0
SHA1

7cf9362db3615c9d7ac1bd86a8b34767ad1bb7e2
SHA256

1fe57ec8aa73b0a0ec80fc3b2c508597724165cd2754b2589d974e917726dd34
SHA512

638da391a2e39d38d8c18fba23b20055dfa92b98402898477643bd2fd97a2852ebbf3190a1b99b2794cccb572fe33863762590431a7894066f0fcddc61ce5f80
SSDEEP

6144:1wHysEYOmWb2UfOEmvb/cjO6wlD+GznCWFYx185H1cI5+2d2Qd0HTLCXv:eEY52eb/cSFFquN5+hpHfC/

Score

10^/10

darkcomet member discovery persistence rat trojan upx

Malware Config

Extracted

Family

darkcomet

Botnet

Member

privatefirmservices.misconfused.org:1889

Mutex

DC_MUTEX-VPYPTFZ

Attributes

InstallPath
outlook\reader.exe
gencode
lMrP0lsejr0x
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
Darkcomet family
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\\Favorites\\outlook\\reader.exe"	1fe57ec8aa73b0a0ec80fc3b2c508597724165cd2754b2589d974e917726dd34N.exe

Checks computer location settings 2 TTPs 1 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-1-5-21-3227495264-2217614367-4027411560-1000\Control Panel\International\Geo\Nation	1fe57ec8aa73b0a0ec80fc3b2c508597724165cd2754b2589d974e917726dd34N.exe

Executes dropped EXE 2 IoCs

pid	Process
3716	reader.exe
116	reader.exe

Loads dropped DLL 2 IoCs

pid	Process
3940	1fe57ec8aa73b0a0ec80fc3b2c508597724165cd2754b2589d974e917726dd34N.exe
3716	reader.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-1-5-21-3227495264-2217614367-4027411560-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\Favorites\\outlook\\reader.exe"	1fe57ec8aa73b0a0ec80fc3b2c508597724165cd2754b2589d974e917726dd34N.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 3940 set thread context of 3464	3940	1fe57ec8aa73b0a0ec80fc3b2c508597724165cd2754b2589d974e917726dd34N.exe	82
PID 3716 set thread context of 116	3716	reader.exe	86

UPX packed file 24 IoCs

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

upx

resource	yara_rule
behavioral2/memory/3464-10-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/3464-6-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/3464-11-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/3464-13-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/3464-12-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/3464-14-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/3464-91-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/116-92-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/116-94-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/116-93-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/116-95-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/116-98-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/116-99-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/116-100-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/116-101-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/116-102-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/116-103-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/116-104-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/116-105-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/116-106-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/116-107-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/116-108-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/116-109-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/116-110-0x0000000000400000-0x00000000004B7000-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 4 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	1fe57ec8aa73b0a0ec80fc3b2c508597724165cd2754b2589d974e917726dd34N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	1fe57ec8aa73b0a0ec80fc3b2c508597724165cd2754b2589d974e917726dd34N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	reader.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	reader.exe

NSIS installer 2 IoCs

installer

resource	yara_rule
behavioral2/files/0x000b000000023b8e-19.dat	nsis_installer_1
behavioral2/files/0x000b000000023b8e-19.dat	nsis_installer_2

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\	1fe57ec8aa73b0a0ec80fc3b2c508597724165cd2754b2589d974e917726dd34N.exe

Suspicious use of AdjustPrivilegeToken 48 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	3464	1fe57ec8aa73b0a0ec80fc3b2c508597724165cd2754b2589d974e917726dd34N.exe
Token: SeSecurityPrivilege	3464	1fe57ec8aa73b0a0ec80fc3b2c508597724165cd2754b2589d974e917726dd34N.exe
Token: SeTakeOwnershipPrivilege	3464	1fe57ec8aa73b0a0ec80fc3b2c508597724165cd2754b2589d974e917726dd34N.exe
Token: SeLoadDriverPrivilege	3464	1fe57ec8aa73b0a0ec80fc3b2c508597724165cd2754b2589d974e917726dd34N.exe
Token: SeSystemProfilePrivilege	3464	1fe57ec8aa73b0a0ec80fc3b2c508597724165cd2754b2589d974e917726dd34N.exe
Token: SeSystemtimePrivilege	3464	1fe57ec8aa73b0a0ec80fc3b2c508597724165cd2754b2589d974e917726dd34N.exe
Token: SeProfSingleProcessPrivilege	3464	1fe57ec8aa73b0a0ec80fc3b2c508597724165cd2754b2589d974e917726dd34N.exe
Token: SeIncBasePriorityPrivilege	3464	1fe57ec8aa73b0a0ec80fc3b2c508597724165cd2754b2589d974e917726dd34N.exe
Token: SeCreatePagefilePrivilege	3464	1fe57ec8aa73b0a0ec80fc3b2c508597724165cd2754b2589d974e917726dd34N.exe
Token: SeBackupPrivilege	3464	1fe57ec8aa73b0a0ec80fc3b2c508597724165cd2754b2589d974e917726dd34N.exe
Token: SeRestorePrivilege	3464	1fe57ec8aa73b0a0ec80fc3b2c508597724165cd2754b2589d974e917726dd34N.exe
Token: SeShutdownPrivilege	3464	1fe57ec8aa73b0a0ec80fc3b2c508597724165cd2754b2589d974e917726dd34N.exe
Token: SeDebugPrivilege	3464	1fe57ec8aa73b0a0ec80fc3b2c508597724165cd2754b2589d974e917726dd34N.exe
Token: SeSystemEnvironmentPrivilege	3464	1fe57ec8aa73b0a0ec80fc3b2c508597724165cd2754b2589d974e917726dd34N.exe
Token: SeChangeNotifyPrivilege	3464	1fe57ec8aa73b0a0ec80fc3b2c508597724165cd2754b2589d974e917726dd34N.exe
Token: SeRemoteShutdownPrivilege	3464	1fe57ec8aa73b0a0ec80fc3b2c508597724165cd2754b2589d974e917726dd34N.exe
Token: SeUndockPrivilege	3464	1fe57ec8aa73b0a0ec80fc3b2c508597724165cd2754b2589d974e917726dd34N.exe
Token: SeManageVolumePrivilege	3464	1fe57ec8aa73b0a0ec80fc3b2c508597724165cd2754b2589d974e917726dd34N.exe
Token: SeImpersonatePrivilege	3464	1fe57ec8aa73b0a0ec80fc3b2c508597724165cd2754b2589d974e917726dd34N.exe
Token: SeCreateGlobalPrivilege	3464	1fe57ec8aa73b0a0ec80fc3b2c508597724165cd2754b2589d974e917726dd34N.exe
Token: 33	3464	1fe57ec8aa73b0a0ec80fc3b2c508597724165cd2754b2589d974e917726dd34N.exe
Token: 34	3464	1fe57ec8aa73b0a0ec80fc3b2c508597724165cd2754b2589d974e917726dd34N.exe
Token: 35	3464	1fe57ec8aa73b0a0ec80fc3b2c508597724165cd2754b2589d974e917726dd34N.exe
Token: 36	3464	1fe57ec8aa73b0a0ec80fc3b2c508597724165cd2754b2589d974e917726dd34N.exe
Token: SeIncreaseQuotaPrivilege	116	reader.exe
Token: SeSecurityPrivilege	116	reader.exe
Token: SeTakeOwnershipPrivilege	116	reader.exe
Token: SeLoadDriverPrivilege	116	reader.exe
Token: SeSystemProfilePrivilege	116	reader.exe
Token: SeSystemtimePrivilege	116	reader.exe
Token: SeProfSingleProcessPrivilege	116	reader.exe
Token: SeIncBasePriorityPrivilege	116	reader.exe
Token: SeCreatePagefilePrivilege	116	reader.exe
Token: SeBackupPrivilege	116	reader.exe
Token: SeRestorePrivilege	116	reader.exe
Token: SeShutdownPrivilege	116	reader.exe
Token: SeDebugPrivilege	116	reader.exe
Token: SeSystemEnvironmentPrivilege	116	reader.exe
Token: SeChangeNotifyPrivilege	116	reader.exe
Token: SeRemoteShutdownPrivilege	116	reader.exe
Token: SeUndockPrivilege	116	reader.exe
Token: SeManageVolumePrivilege	116	reader.exe
Token: SeImpersonatePrivilege	116	reader.exe
Token: SeCreateGlobalPrivilege	116	reader.exe
Token: 33	116	reader.exe
Token: 34	116	reader.exe
Token: 35	116	reader.exe
Token: 36	116	reader.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
116	reader.exe

Suspicious use of WriteProcessMemory 19 IoCs

description	pid	Process	procid_target
PID 3940 wrote to memory of 3464	3940	1fe57ec8aa73b0a0ec80fc3b2c508597724165cd2754b2589d974e917726dd34N.exe	82
PID 3940 wrote to memory of 3464	3940	1fe57ec8aa73b0a0ec80fc3b2c508597724165cd2754b2589d974e917726dd34N.exe	82
PID 3940 wrote to memory of 3464	3940	1fe57ec8aa73b0a0ec80fc3b2c508597724165cd2754b2589d974e917726dd34N.exe	82
PID 3940 wrote to memory of 3464	3940	1fe57ec8aa73b0a0ec80fc3b2c508597724165cd2754b2589d974e917726dd34N.exe	82
PID 3940 wrote to memory of 3464	3940	1fe57ec8aa73b0a0ec80fc3b2c508597724165cd2754b2589d974e917726dd34N.exe	82
PID 3940 wrote to memory of 3464	3940	1fe57ec8aa73b0a0ec80fc3b2c508597724165cd2754b2589d974e917726dd34N.exe	82
PID 3940 wrote to memory of 3464	3940	1fe57ec8aa73b0a0ec80fc3b2c508597724165cd2754b2589d974e917726dd34N.exe	82
PID 3940 wrote to memory of 3464	3940	1fe57ec8aa73b0a0ec80fc3b2c508597724165cd2754b2589d974e917726dd34N.exe	82
PID 3464 wrote to memory of 3716	3464	1fe57ec8aa73b0a0ec80fc3b2c508597724165cd2754b2589d974e917726dd34N.exe	85
PID 3464 wrote to memory of 3716	3464	1fe57ec8aa73b0a0ec80fc3b2c508597724165cd2754b2589d974e917726dd34N.exe	85
PID 3464 wrote to memory of 3716	3464	1fe57ec8aa73b0a0ec80fc3b2c508597724165cd2754b2589d974e917726dd34N.exe	85
PID 3716 wrote to memory of 116	3716	reader.exe	86
PID 3716 wrote to memory of 116	3716	reader.exe	86
PID 3716 wrote to memory of 116	3716	reader.exe	86
PID 3716 wrote to memory of 116	3716	reader.exe	86
PID 3716 wrote to memory of 116	3716	reader.exe	86
PID 3716 wrote to memory of 116	3716	reader.exe	86
PID 3716 wrote to memory of 116	3716	reader.exe	86
PID 3716 wrote to memory of 116	3716	reader.exe	86

C:\Users\Admin\AppData\Local\Temp\1fe57ec8aa73b0a0ec80fc3b2c508597724165cd2754b2589d974e917726dd34N.exe
"C:\Users\Admin\AppData\Local\Temp\1fe57ec8aa73b0a0ec80fc3b2c508597724165cd2754b2589d974e917726dd34N.exe"
1⤵
- Loads dropped DLL
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3940
- C:\Users\Admin\AppData\Local\Temp\1fe57ec8aa73b0a0ec80fc3b2c508597724165cd2754b2589d974e917726dd34N.exe
  "C:\Users\Admin\AppData\Local\Temp\1fe57ec8aa73b0a0ec80fc3b2c508597724165cd2754b2589d974e917726dd34N.exe"
  2⤵
  - Modifies WinLogon for persistence
  - Checks computer location settings
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Modifies registry class
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:3464
- - C:\Users\Admin\Favorites\outlook\reader.exe
    "C:\Users\Admin\Favorites\outlook\reader.exe"
    3⤵
    - Executes dropped EXE
    - Loads dropped DLL
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:3716
  - - C:\Users\Admin\Favorites\outlook\reader.exe
      "C:\Users\Admin\Favorites\outlook\reader.exe"
      4⤵
      Executes dropped EXE
      System Location Discovery: System Language Discovery
      Suspicious use of AdjustPrivilegeToken
      Suspicious use of SetWindowsHookEx
      PID:116

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

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\nsp9F00.tmp\snorts.dll

Filesize
22KB

MD5
03335eedd55f4e846c30f6e343b79f72

SHA1
d97be693fa21f3e1f75f6aec08c943a5589d0de4

SHA256
0379140a954b9a8cd1be8fa6302a7296af60298b7af77a1e40914f95d012b647

SHA512
2f43d9a46c720ae424354b5082f37422d8add2d0931f628fb8f503de5860c94efd130bf66b61efaf6865984fea573d122ada603af06aec56286cd29d9faf5b18

Download Submit
C:\Users\Admin\AppData\Roaming\snorts.gs

Filesize
251KB

MD5
742ea6c8197de6c5e44e3eab801f240d

SHA1
a8ea8771b12665a0e2199486d86270da3d212536

SHA256
52798a3abc8a383259f1273930412f6cbf1abe4beb314c120d7e123dfecfb7a7

SHA512
a1a2c311d552405658c051fa570ca37398d129a6c95dff2c85d1c0db68c18b70cf64cff6c0168ec67f35e2eeb96fd5787882d2de020d2577101706554cf79d6b

Download Submit
C:\Users\Admin\Favorites\outlook\reader.exe

Filesize
300KB

MD5
7a20bc1617941753c2df045d10b2e9b0

SHA1
7cf9362db3615c9d7ac1bd86a8b34767ad1bb7e2

SHA256
1fe57ec8aa73b0a0ec80fc3b2c508597724165cd2754b2589d974e917726dd34

SHA512
638da391a2e39d38d8c18fba23b20055dfa92b98402898477643bd2fd97a2852ebbf3190a1b99b2794cccb572fe33863762590431a7894066f0fcddc61ce5f80

Download Submit
memory/116-102-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/116-103-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/116-110-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/116-109-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/116-108-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/116-107-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/116-106-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/116-92-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/116-94-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/116-93-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/116-95-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/116-98-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/116-99-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/116-100-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/116-101-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/116-105-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/116-104-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/3464-13-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/3464-10-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/3464-91-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/3464-6-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/3464-11-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/3464-14-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/3464-12-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads