darkcomet | 124cf9ec93d72d5556c51c6c803bc42f05ece6bf4577bbf7b487070faaf9b96f

General

Target

Mod installer.exe
Size

772KB
MD5

0962d31ce2c0b1e367785bb0dd7fa51f
SHA1

babfd019f4b6acb0fe4961f65436ce104b1ba3c6
SHA256

6b1eb6a3f71c127fab04aa1e5c0ca7b15c8f2bcb4613ed1b3d1da1e622fb470e
SHA512

c72a179986157d32f58c756efd00474a9dbdbeca7779456b1f08eb34905a51ad88d697343b01e64ee8e31a5d37eef6e98871da94432e06f8e9b25fd23ff0e611
SSDEEP

24576:vchr3REB8H+KvAdUJAfwPuYd+V6bPewJwg:vYT+w+KvAdUJAfwPuYd+V6bPewJwg

Score

10^/10

darkcomet alphadelta discovery rat trojan upx

Malware Config

Extracted

Family

darkcomet

Botnet

AlphaDelta

C2

hakes.zapto.org:1337

Mutex

DC_MUTEX-YECBH52

Attributes

gencode
dv9GrE2HB27o
install
false
offline_keylogger
true
persistence
false

Signatures

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

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-1-5-21-4089630652-1596403869-279772308-1000\Control Panel\International\Geo\Nation	Mod installer.exe

Uses the VBS compiler for execution 1 TTPs

Command and Scripting Interpreter
T1059

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4960 set thread context of 3816	4960	Mod installer.exe	88

UPX packed file 23 IoCs

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

upx

resource	yara_rule
behavioral2/memory/3816-8-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/3816-11-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/3816-12-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/3816-13-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/3816-15-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/3816-14-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/3816-23-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/3816-24-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/3816-25-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/3816-26-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/3816-27-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/3816-28-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/3816-29-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/3816-30-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/3816-31-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/3816-32-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/3816-33-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/3816-34-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/3816-35-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/3816-36-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/3816-37-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/3816-38-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/3816-39-0x0000000000400000-0x00000000004B7000-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 3 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	vbc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	WScript.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Mod installer.exe

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000_Classes\Local Settings	Mod installer.exe

Suspicious use of AdjustPrivilegeToken 24 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	3816	vbc.exe
Token: SeSecurityPrivilege	3816	vbc.exe
Token: SeTakeOwnershipPrivilege	3816	vbc.exe
Token: SeLoadDriverPrivilege	3816	vbc.exe
Token: SeSystemProfilePrivilege	3816	vbc.exe
Token: SeSystemtimePrivilege	3816	vbc.exe
Token: SeProfSingleProcessPrivilege	3816	vbc.exe
Token: SeIncBasePriorityPrivilege	3816	vbc.exe
Token: SeCreatePagefilePrivilege	3816	vbc.exe
Token: SeBackupPrivilege	3816	vbc.exe
Token: SeRestorePrivilege	3816	vbc.exe
Token: SeShutdownPrivilege	3816	vbc.exe
Token: SeDebugPrivilege	3816	vbc.exe
Token: SeSystemEnvironmentPrivilege	3816	vbc.exe
Token: SeChangeNotifyPrivilege	3816	vbc.exe
Token: SeRemoteShutdownPrivilege	3816	vbc.exe
Token: SeUndockPrivilege	3816	vbc.exe
Token: SeManageVolumePrivilege	3816	vbc.exe
Token: SeImpersonatePrivilege	3816	vbc.exe
Token: SeCreateGlobalPrivilege	3816	vbc.exe
Token: 33	3816	vbc.exe
Token: 34	3816	vbc.exe
Token: 35	3816	vbc.exe
Token: 36	3816	vbc.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
3816	vbc.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 4960 wrote to memory of 3816	4960	Mod installer.exe	88
PID 4960 wrote to memory of 3816	4960	Mod installer.exe	88
PID 4960 wrote to memory of 3816	4960	Mod installer.exe	88
PID 4960 wrote to memory of 3816	4960	Mod installer.exe	88
PID 4960 wrote to memory of 3816	4960	Mod installer.exe	88
PID 4960 wrote to memory of 3816	4960	Mod installer.exe	88
PID 4960 wrote to memory of 3816	4960	Mod installer.exe	88
PID 4960 wrote to memory of 3816	4960	Mod installer.exe	88
PID 4960 wrote to memory of 2280	4960	Mod installer.exe	89
PID 4960 wrote to memory of 2280	4960	Mod installer.exe	89
PID 4960 wrote to memory of 2280	4960	Mod installer.exe	89

C:\Users\Admin\AppData\Local\Temp\Mod installer.exe
"C:\Users\Admin\AppData\Local\Temp\Mod installer.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:4960
- C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
  C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  PID:3816
- C:\Windows\SysWOW64\WScript.exe
  "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Roaming\UzfRN.vbs"
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2280

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Roaming\UzfRN.vbs

Filesize
402B

MD5
a4c32adf1c50526f00a9bc72275fb99d

SHA1
7c495c520ea86e0fac579c09365d17eda0d2ca8f

SHA256
775fa807f869a54035a3746be16c46e2e875183fb9261b271c56c1d1d5407c7c

SHA512
4542b3371bf6ac7630ac398eaa6cac77e0818582c366736387016408bbc8479e2cad304ac4429c6b0dc15b0dfd69418ca5dc6669c45ed099314d19869bc3ec72

Download Submit
memory/3816-23-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/3816-37-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/3816-38-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/3816-36-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/3816-35-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/3816-34-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/3816-24-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/3816-8-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/3816-11-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/3816-12-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/3816-13-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/3816-15-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/3816-14-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/3816-33-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/3816-39-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/3816-32-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/3816-31-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/3816-25-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/3816-26-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/3816-27-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/3816-28-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/3816-29-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/3816-30-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/4960-7-0x00000000745F0000-0x0000000074BA1000-memory.dmp

Filesize
5.7MB

Download
memory/4960-2-0x00000000745F0000-0x0000000074BA1000-memory.dmp

Filesize
5.7MB

Download
memory/4960-1-0x00000000745F0000-0x0000000074BA1000-memory.dmp

Filesize
5.7MB

Download
memory/4960-6-0x00000000745F0000-0x0000000074BA1000-memory.dmp

Filesize
5.7MB

Download
memory/4960-5-0x00000000745F0000-0x0000000074BA1000-memory.dmp

Filesize
5.7MB

Download
memory/4960-4-0x00000000745F2000-0x00000000745F3000-memory.dmp

Filesize
4KB

Download
memory/4960-0-0x00000000745F2000-0x00000000745F3000-memory.dmp

Filesize
4KB

Download
memory/4960-3-0x00000000745F0000-0x0000000074BA1000-memory.dmp

Filesize
5.7MB

Download
memory/4960-22-0x00000000745F0000-0x0000000074BA1000-memory.dmp

Filesize
5.7MB

Download

Analysis

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