darkcomet | 2f7c6195415c8d32bbf266557f2e31b945204713487644c46328160d1e730337

Analysis

max time kernel
150s
max time network
121s
platform
windows7_x64
resource
win7-20231020-en
resource tags

arch:x64arch:x86image:win7-20231020-enlocale:en-usos:windows7-x64system
submitted
14/12/2023, 01:47

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General

Target

RCE.exe
Size

586KB
MD5

bc2c57458db20a2a2d4ea99b3f5b8d37
SHA1

25e08e1ee03372c5ce2f14fde486eee8bf6d6669
SHA256

af6ea3e8d3f391d34464e30e2622162b417050345b429fb7553ff57d2c168be1
SHA512

62ba9a5a19ff048eeebf3b611d83cdc3ac78805adc03751c30d5c530f4542f94fb0216d52c4ba94dbe3dc81604f6074c45c22ddc306891a994fabe6fdc923132
SSDEEP

12288:uh1Lk70TnvjcQ+QSUofDRJsaVZ/OP4400KBIqLdMQT:ik70TrcQWHsgdZBISrT

Score

10^/10

darkcomet hacker evasion persistence rat trojan upx

Malware Config

Extracted

Family

darkcomet

Botnet

hacker

snatchfou.zapto.org:1604

Mutex

DC_MUTEX-EAGMYFG

Attributes

gencode
QwbT0i9M7Prw
install
false
offline_keylogger
true
persistence
false

Signatures

Darkcomet
DarkComet is a remote access trojan (RAT) developed by Jean-Pierre Lesueur.
trojan rat darkcomet

Disables RegEdit via registry modification 1 IoCs

evasion

description	ioc	Process
Set value (int)	\REGISTRY\USER\S-1-5-21-2952504676-3105837840-1406404655-1000\Software\Microsoft\Windows\CurrentVersion\Policies\System\DisableRegistryTools = "1"	WinWork.exe

Disables Task Manager via registry modification
evasion

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

pid	Process
2580	attrib.exe
2568	attrib.exe

Executes dropped EXE 1 IoCs

pid	Process
2448	WinWork.exe

Loads dropped DLL 1 IoCs

pid	Process
2128	RCE.exe

UPX packed file 25 IoCs

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

upx

resource	yara_rule
behavioral7/memory/2448-13-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral7/memory/2448-10-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral7/memory/2448-14-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral7/memory/2448-15-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral7/memory/2448-16-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral7/memory/2448-17-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral7/memory/2448-20-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral7/memory/2448-56-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral7/memory/2448-55-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral7/memory/2448-58-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral7/memory/2448-59-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral7/memory/2448-60-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral7/memory/2448-61-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral7/memory/2448-62-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral7/memory/2448-63-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral7/memory/2448-64-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral7/memory/2448-65-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral7/memory/2448-66-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral7/memory/2448-67-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral7/memory/2448-68-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral7/memory/2448-69-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral7/memory/2448-70-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral7/memory/2448-71-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral7/memory/2448-72-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral7/memory/2448-73-0x0000000000400000-0x00000000004B7000-memory.dmp	upx

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2952504676-3105837840-1406404655-1000\Software\Microsoft\Windows\CurrentVersion\Run\update = "C:\\Users\\Admin\\AppData\\Local\\Temp\\WinApp\\RCE.exe"	RCE.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2128 set thread context of 2448	2128	RCE.exe	28

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

System Information Discovery
T1082

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2448	WinWork.exe

Suspicious use of AdjustPrivilegeToken 24 IoCs

description	pid	Process
Token: SeDebugPrivilege	2128	RCE.exe
Token: SeIncreaseQuotaPrivilege	2448	WinWork.exe
Token: SeSecurityPrivilege	2448	WinWork.exe
Token: SeTakeOwnershipPrivilege	2448	WinWork.exe
Token: SeLoadDriverPrivilege	2448	WinWork.exe
Token: SeSystemProfilePrivilege	2448	WinWork.exe
Token: SeSystemtimePrivilege	2448	WinWork.exe
Token: SeProfSingleProcessPrivilege	2448	WinWork.exe
Token: SeIncBasePriorityPrivilege	2448	WinWork.exe
Token: SeCreatePagefilePrivilege	2448	WinWork.exe
Token: SeBackupPrivilege	2448	WinWork.exe
Token: SeRestorePrivilege	2448	WinWork.exe
Token: SeShutdownPrivilege	2448	WinWork.exe
Token: SeDebugPrivilege	2448	WinWork.exe
Token: SeSystemEnvironmentPrivilege	2448	WinWork.exe
Token: SeChangeNotifyPrivilege	2448	WinWork.exe
Token: SeRemoteShutdownPrivilege	2448	WinWork.exe
Token: SeUndockPrivilege	2448	WinWork.exe
Token: SeManageVolumePrivilege	2448	WinWork.exe
Token: SeImpersonatePrivilege	2448	WinWork.exe
Token: SeCreateGlobalPrivilege	2448	WinWork.exe
Token: 33	2448	WinWork.exe
Token: 34	2448	WinWork.exe
Token: 35	2448	WinWork.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2448	WinWork.exe

Suspicious use of WriteProcessMemory 48 IoCs

description	pid	Process	procid_target
PID 2128 wrote to memory of 2448	2128	RCE.exe	28
PID 2128 wrote to memory of 2448	2128	RCE.exe	28
PID 2128 wrote to memory of 2448	2128	RCE.exe	28
PID 2128 wrote to memory of 2448	2128	RCE.exe	28
PID 2128 wrote to memory of 2448	2128	RCE.exe	28
PID 2128 wrote to memory of 2448	2128	RCE.exe	28
PID 2128 wrote to memory of 2448	2128	RCE.exe	28
PID 2128 wrote to memory of 2448	2128	RCE.exe	28
PID 2128 wrote to memory of 2448	2128	RCE.exe	28
PID 2448 wrote to memory of 2716	2448	WinWork.exe	35
PID 2448 wrote to memory of 2716	2448	WinWork.exe	35
PID 2448 wrote to memory of 2716	2448	WinWork.exe	35
PID 2448 wrote to memory of 2716	2448	WinWork.exe	35
PID 2448 wrote to memory of 2720	2448	WinWork.exe	34
PID 2448 wrote to memory of 2720	2448	WinWork.exe	34
PID 2448 wrote to memory of 2720	2448	WinWork.exe	34
PID 2448 wrote to memory of 2720	2448	WinWork.exe	34
PID 2448 wrote to memory of 2860	2448	WinWork.exe	32
PID 2448 wrote to memory of 2860	2448	WinWork.exe	32
PID 2448 wrote to memory of 2860	2448	WinWork.exe	32
PID 2448 wrote to memory of 2860	2448	WinWork.exe	32
PID 2448 wrote to memory of 2860	2448	WinWork.exe	32
PID 2448 wrote to memory of 2860	2448	WinWork.exe	32
PID 2448 wrote to memory of 2860	2448	WinWork.exe	32
PID 2448 wrote to memory of 2860	2448	WinWork.exe	32
PID 2448 wrote to memory of 2860	2448	WinWork.exe	32
PID 2448 wrote to memory of 2860	2448	WinWork.exe	32
PID 2448 wrote to memory of 2860	2448	WinWork.exe	32
PID 2448 wrote to memory of 2860	2448	WinWork.exe	32
PID 2448 wrote to memory of 2860	2448	WinWork.exe	32
PID 2448 wrote to memory of 2860	2448	WinWork.exe	32
PID 2448 wrote to memory of 2860	2448	WinWork.exe	32
PID 2448 wrote to memory of 2860	2448	WinWork.exe	32
PID 2448 wrote to memory of 2860	2448	WinWork.exe	32
PID 2448 wrote to memory of 2860	2448	WinWork.exe	32
PID 2448 wrote to memory of 2860	2448	WinWork.exe	32
PID 2448 wrote to memory of 2860	2448	WinWork.exe	32
PID 2448 wrote to memory of 2860	2448	WinWork.exe	32
PID 2448 wrote to memory of 2860	2448	WinWork.exe	32
PID 2448 wrote to memory of 2860	2448	WinWork.exe	32
PID 2720 wrote to memory of 2568	2720	cmd.exe	31
PID 2720 wrote to memory of 2568	2720	cmd.exe	31
PID 2720 wrote to memory of 2568	2720	cmd.exe	31
PID 2720 wrote to memory of 2568	2720	cmd.exe	31
PID 2716 wrote to memory of 2580	2716	cmd.exe	30
PID 2716 wrote to memory of 2580	2716	cmd.exe	30
PID 2716 wrote to memory of 2580	2716	cmd.exe	30
PID 2716 wrote to memory of 2580	2716	cmd.exe	30

Views/modifies file attributes 1 TTPs 2 IoCs

evasion

Hidden Files and Directories

T1564.001

pid	Process
2580	attrib.exe
2568	attrib.exe

C:\Users\Admin\AppData\Local\Temp\RCE.exe
"C:\Users\Admin\AppData\Local\Temp\RCE.exe"
1⤵
- Loads dropped DLL
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2128
- C:\Users\Admin\AppData\Local\Temp\WinWork.exe
  C:\Users\Admin\AppData\Local\Temp\WinWork.exe
  2⤵
  - Disables RegEdit via registry modification
  - Executes dropped EXE
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2448
- - C:\Windows\SysWOW64\notepad.exe
    notepad
    3⤵
    PID:2860
- - 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:2720
- - C:\Windows\SysWOW64\cmd.exe
    "C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp\WinWork.exe" +s +h
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:2716

C:\Windows\SysWOW64\attrib.exe
attrib "C:\Users\Admin\AppData\Local\Temp\WinWork.exe" +s +h
1⤵
- Sets file to hidden
- Views/modifies file attributes
PID:2580

C:\Windows\SysWOW64\attrib.exe
attrib "C:\Users\Admin\AppData\Local\Temp" +s +h
1⤵
- Sets file to hidden
- Views/modifies file attributes
PID:2568

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

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

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

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Downloads

C:\Users\Admin\AppData\Local\Temp\WinWork.exe

Filesize
353KB

MD5
83a0b65adb6c4062b5cbf3e72180e241

SHA1
6011b9b6d3c451cb2bd49c4ce10f486bc255ed94

SHA256
81e230ad0eb8480fb890694a360dc2aa2baa2087c82b0ddfcc06d633b4673d63

SHA512
6be941dde69cf747703add8309d538b009b759f66fdaa4675b26d0fb4a5d84846480f832940d02d4d19c0be847ccd05afbf93b3f70200ea9ef323a923fa58310

Download Submit
C:\Users\Admin\AppData\Local\Temp\WinWork.exe

Filesize
183KB

MD5
0e73186e069f5bfda71e8bf15cc2aca7

SHA1
d4373a0b9d50b06a76e4401c72566e8bb9546ea4

SHA256
8fa23d33d27a77f857db5612e75b59fc975a5dc40d7b71cc68f800188a399e1b

SHA512
f381614270d673aed0596b3fc9b70b7b4e4c4c125696de20e1e828686efe5bd8129d35c7151943568186ac7e4500574da2d5177dacdb715804cdbcdb93e84790

Download Submit
C:\Users\Admin\AppData\Local\Temp\WinWork.exe

Filesize
474KB

MD5
4bb9776d4b77739bfb56e9b5bc52c19f

SHA1
056ce9bac679095ace185b698870b27862af9038

SHA256
c1c7d9acfdf95386dc17339d4b03ef0915c8cdad77729683eaea1d31923dde4e

SHA512
fc1ec9a7767907499df2335af1043a3f0c6f686e25851a303cfbb68a927c0d606b6bc8a3173c3c06494573add8a4de1ccae721d7368c3edba60e99d3c4c40016

Download Submit
\Users\Admin\AppData\Local\Temp\WinWork.exe

Filesize
442KB

MD5
8059b4a49e6af024ec9b306985f3bfbf

SHA1
dfeac34f13a7f8d16b40122eb85403c866a08499

SHA256
8c952dc22c9f2a972681763f8e2156cf87375d3696a96a2bfa1046ad04963c40

SHA512
cfc9694b23620090aa350c90a9058c17a837d95d4ccdd29a2c70c4cf6fb095153508747d8df84faa5a42175f7170cff877f12aaa945f82a9900bd86a212d69c6

Download Submit
memory/2128-1-0x0000000074E50000-0x00000000753FB000-memory.dmp

Filesize
5.7MB

Download
memory/2128-2-0x0000000074E50000-0x00000000753FB000-memory.dmp

Filesize
5.7MB

Download
memory/2128-3-0x0000000002090000-0x00000000020D0000-memory.dmp

Filesize
256KB

Download
memory/2128-11-0x0000000005610000-0x00000000056BA000-memory.dmp

Filesize
680KB

Download
memory/2128-57-0x0000000074E50000-0x00000000753FB000-memory.dmp

Filesize
5.7MB

Download
memory/2128-0-0x0000000000400000-0x00000000004AA000-memory.dmp

Filesize
680KB

Download
memory/2448-56-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2448-65-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2448-16-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2448-17-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2448-14-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2448-18-0x0000000000260000-0x0000000000261000-memory.dmp

Filesize
4KB

Download
memory/2448-20-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2448-73-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2448-10-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2448-55-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2448-13-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2448-72-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2448-58-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2448-59-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2448-60-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2448-61-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2448-62-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2448-63-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2448-64-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2448-15-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

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

Filesize
732KB

Download
memory/2448-67-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2448-68-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2448-69-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2448-70-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2448-71-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2860-21-0x0000000000080000-0x0000000000081000-memory.dmp

Filesize
4KB

Download
memory/2860-54-0x00000000002C0000-0x00000000002C1000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads