darkcomet | fd0de16979745282b54df24282645567605521e9f7dd0208e8156daaa0d951ec

General

Target

c1b79937ec2f95f5e68cc2145cd2d950_NeikiAnalytics.exe
Size

576KB
MD5

c1b79937ec2f95f5e68cc2145cd2d950
SHA1

67f760f9a1bec6a7330afc3dfd60d2edbaa14bfe
SHA256

fd0de16979745282b54df24282645567605521e9f7dd0208e8156daaa0d951ec
SHA512

d76ec4ec24444c25da7390bea8ef00a71853a64c32d333f664b51a7dcbbba6adcf83756486982e17d3e243b585131f03beaf10b11dbde23e707fb52f817babf1
SSDEEP

12288:+NWPkHlUkErBuxQ4uzi6d6dL/yiXLzeMdK6io8levy0FhVlpzkzDDoSA:+NWPkHlUfBgpuPdWzyuDTifgyWlZ

Score

10^/10

darkcomet persistence rat trojan upx

Malware Config

Signatures

Darkcomet
DarkComet is a remote access trojan (RAT) developed by Jean-Pierre Lesueur.
trojan rat darkcomet
Checks BIOS information in registry 2 TTPs 1 IoCs
BIOS information is often read in order to detect sandboxing environments.

Query Registry
T1012

System Information Discovery
T1082

Processes:

mcsft.exe

description ioc process

Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosDate mcsft.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosDate	mcsft.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

Processes:

c1b79937ec2f95f5e68cc2145cd2d950_NeikiAnalytics.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-1337824034-2731376981-3755436523-1000\Control Panel\International\Geo\Nation	c1b79937ec2f95f5e68cc2145cd2d950_NeikiAnalytics.exe

Executes dropped EXE 2 IoCs

Processes:

mcsft.exemcsft.exe

pid process

4088 mcsft.exe
2520 mcsft.exe

pid	process
4088	mcsft.exe
2520	mcsft.exe

UPX packed file 30 IoCs

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

upx

Processes:

resource	yara_rule
behavioral2/memory/1560-0-0x0000000000400000-0x00000000007C8000-memory.dmp	upx
C:\Users\Admin\AppData\Roaming\mcsft.txt	upx
behavioral2/memory/1560-29-0x0000000000400000-0x00000000007C8000-memory.dmp	upx
behavioral2/memory/2520-32-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral2/memory/2520-34-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral2/memory/2520-37-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral2/memory/4088-36-0x0000000000400000-0x00000000007C8000-memory.dmp	upx
behavioral2/memory/2520-38-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral2/memory/2520-39-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral2/memory/2520-40-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral2/memory/2520-44-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral2/memory/2520-43-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral2/memory/2520-42-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral2/memory/2520-41-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral2/memory/2520-45-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral2/memory/2520-46-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral2/memory/2520-47-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral2/memory/2520-48-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral2/memory/2520-49-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral2/memory/2520-50-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral2/memory/2520-51-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral2/memory/2520-52-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral2/memory/2520-53-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral2/memory/2520-54-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral2/memory/2520-55-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral2/memory/2520-56-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral2/memory/2520-57-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral2/memory/2520-58-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral2/memory/2520-59-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral2/memory/2520-60-0x0000000000400000-0x00000000004B5000-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:

reg.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-1337824034-2731376981-3755436523-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Mcrosoft = "C:\\Users\\Admin\\AppData\\Roaming\\mcsft.exe"	reg.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

mcsft.exe

description pid process target process

PID 4088 set thread context of 2520 4088 mcsft.exe mcsft.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

description	pid	process	target process
PID 4088 set thread context of 2520	4088	mcsft.exe	mcsft.exe

Checks processor information in registry 2 TTPs 4 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

Processes:

mcsft.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	mcsft.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	mcsft.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	mcsft.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\VendorIdentifier	mcsft.exe

Enumerates system info in registry 2 TTPs 1 IoCs

Query Registry
T1012

System Information Discovery
T1082

Processes:

mcsft.exe

description ioc process

Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier mcsft.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier	mcsft.exe

Suspicious use of AdjustPrivilegeToken 24 IoCs

Processes:

mcsft.exe

description	pid	process
Token: SeIncreaseQuotaPrivilege	2520	mcsft.exe
Token: SeSecurityPrivilege	2520	mcsft.exe
Token: SeTakeOwnershipPrivilege	2520	mcsft.exe
Token: SeLoadDriverPrivilege	2520	mcsft.exe
Token: SeSystemProfilePrivilege	2520	mcsft.exe
Token: SeSystemtimePrivilege	2520	mcsft.exe
Token: SeProfSingleProcessPrivilege	2520	mcsft.exe
Token: SeIncBasePriorityPrivilege	2520	mcsft.exe
Token: SeCreatePagefilePrivilege	2520	mcsft.exe
Token: SeBackupPrivilege	2520	mcsft.exe
Token: SeRestorePrivilege	2520	mcsft.exe
Token: SeShutdownPrivilege	2520	mcsft.exe
Token: SeDebugPrivilege	2520	mcsft.exe
Token: SeSystemEnvironmentPrivilege	2520	mcsft.exe
Token: SeChangeNotifyPrivilege	2520	mcsft.exe
Token: SeRemoteShutdownPrivilege	2520	mcsft.exe
Token: SeUndockPrivilege	2520	mcsft.exe
Token: SeManageVolumePrivilege	2520	mcsft.exe
Token: SeImpersonatePrivilege	2520	mcsft.exe
Token: SeCreateGlobalPrivilege	2520	mcsft.exe
Token: 33	2520	mcsft.exe
Token: 34	2520	mcsft.exe
Token: 35	2520	mcsft.exe
Token: 36	2520	mcsft.exe

Suspicious use of SetWindowsHookEx 3 IoCs

Processes:

c1b79937ec2f95f5e68cc2145cd2d950_NeikiAnalytics.exemcsft.exemcsft.exe

pid process

1560 c1b79937ec2f95f5e68cc2145cd2d950_NeikiAnalytics.exe
4088 mcsft.exe
2520 mcsft.exe

pid	process
1560	c1b79937ec2f95f5e68cc2145cd2d950_NeikiAnalytics.exe
4088	mcsft.exe
2520	mcsft.exe

Suspicious use of WriteProcessMemory 17 IoCs

Processes:

c1b79937ec2f95f5e68cc2145cd2d950_NeikiAnalytics.execmd.exemcsft.exe

description	pid	process	target process
PID 1560 wrote to memory of 3248	1560	c1b79937ec2f95f5e68cc2145cd2d950_NeikiAnalytics.exe	cmd.exe
PID 1560 wrote to memory of 3248	1560	c1b79937ec2f95f5e68cc2145cd2d950_NeikiAnalytics.exe	cmd.exe
PID 1560 wrote to memory of 3248	1560	c1b79937ec2f95f5e68cc2145cd2d950_NeikiAnalytics.exe	cmd.exe
PID 3248 wrote to memory of 1896	3248	cmd.exe	reg.exe
PID 3248 wrote to memory of 1896	3248	cmd.exe	reg.exe
PID 3248 wrote to memory of 1896	3248	cmd.exe	reg.exe
PID 1560 wrote to memory of 4088	1560	c1b79937ec2f95f5e68cc2145cd2d950_NeikiAnalytics.exe	mcsft.exe
PID 1560 wrote to memory of 4088	1560	c1b79937ec2f95f5e68cc2145cd2d950_NeikiAnalytics.exe	mcsft.exe
PID 1560 wrote to memory of 4088	1560	c1b79937ec2f95f5e68cc2145cd2d950_NeikiAnalytics.exe	mcsft.exe
PID 4088 wrote to memory of 2520	4088	mcsft.exe	mcsft.exe
PID 4088 wrote to memory of 2520	4088	mcsft.exe	mcsft.exe
PID 4088 wrote to memory of 2520	4088	mcsft.exe	mcsft.exe
PID 4088 wrote to memory of 2520	4088	mcsft.exe	mcsft.exe
PID 4088 wrote to memory of 2520	4088	mcsft.exe	mcsft.exe
PID 4088 wrote to memory of 2520	4088	mcsft.exe	mcsft.exe
PID 4088 wrote to memory of 2520	4088	mcsft.exe	mcsft.exe
PID 4088 wrote to memory of 2520	4088	mcsft.exe	mcsft.exe

C:\Users\Admin\AppData\Local\Temp\c1b79937ec2f95f5e68cc2145cd2d950_NeikiAnalytics.exe
"C:\Users\Admin\AppData\Local\Temp\c1b79937ec2f95f5e68cc2145cd2d950_NeikiAnalytics.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1560

C:\Windows\SysWOW64\cmd.exe
C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\MkXGs.bat" "
2⤵
- Suspicious use of WriteProcessMemory
PID:3248

C:\Windows\SysWOW64\reg.exe
REG ADD "HKCU\Software\Microsoft\Windows\CurrentVersion\Run" /v "Mcrosoft" /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\mcsft.exe" /f
3⤵
- Adds Run key to start application
PID:1896

C:\Users\Admin\AppData\Roaming\mcsft.exe
"C:\Users\Admin\AppData\Roaming\mcsft.exe"
2⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4088

C:\Users\Admin\AppData\Roaming\mcsft.exe
C:\Users\Admin\AppData\Roaming\mcsft.exe
3⤵
- Checks BIOS information in registry
- Executes dropped EXE
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:2520

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

4

T1012

System Information Discovery

5

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\MkXGs.txt
Filesize
135B

MD5
a5feca573884d76f559b996d45e8ad9a

SHA1
0e81a993f3af4e31d60653dc2513186f0495f1c8

SHA256
c98e20d46d6465febb5d29cfab51241521ea5d6cd621f5e18b9b7d6fbfac3f0f

SHA512
a9239648b5f15eac4d4151b6e1bdc81065eeaeb101404c2a0126f03bc87f1e6a57206bfa07a44379e9d3bba889e4497a9991ff41fb109099b01512df3dc3cbda

Download Submit
C:\Users\Admin\AppData\Roaming\mcsft.txt
Filesize
576KB

MD5
f4476d1a0d4e2006d6c6b1701912fc14

SHA1
493a325486f0afad76fd2efe81da9984179dd930

SHA256
8b5a26a50d7fe43ea2aa3b86cc20589425fbc50f4bafd69967047a6e78e9f593

SHA512
69849dece1700990a02f751410401d81e35a2b161082fa1719419d9f0e8cf25d40b01825a022ba2ee98f25435224e61f6713a378b6586f609e0e8d3e7681e296

Download Submit
memory/1560-0-0x0000000000400000-0x00000000007C8000-memory.dmp

Filesize
3.8MB

Download
memory/1560-29-0x0000000000400000-0x00000000007C8000-memory.dmp

Filesize
3.8MB

Download
memory/2520-51-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2520-47-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2520-37-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2520-60-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2520-38-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2520-39-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2520-40-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2520-44-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2520-43-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2520-42-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2520-41-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2520-45-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2520-46-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2520-34-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2520-48-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2520-49-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2520-50-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2520-32-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2520-52-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2520-53-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2520-54-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2520-55-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2520-56-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2520-57-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2520-58-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2520-59-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/4088-36-0x0000000000400000-0x00000000007C8000-memory.dmp

Filesize
3.8MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

Replay Monitor

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Downloads