xenorat | 6bed3b85a45853d8b4ce39d2db9ffbb2d54f90c15bde96caf9b08245e653fcec

Resubmissions

05-09-2024 01:30

240905-bwtrgszgpr 10

02-09-2024 22:07

240902-113ydszcjg 10

Analysis

max time kernel
78s
max time network
140s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
02-09-2024 22:07

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General

Target

GCclientV1.exe
Size

45KB
MD5

6c0987679747dfe56c8a4bc28860cb2f
SHA1

00ff1ad0b4000be73188c8b6a8d91a4a99c48b57
SHA256

6bed3b85a45853d8b4ce39d2db9ffbb2d54f90c15bde96caf9b08245e653fcec
SHA512

4970b77b4f67de3d6731085f762daf10ebe751449671ccb7fea31076bdc941488f79136fbd697fc3e363d7a2b727604eff676012f0c75602e22b5f5411bb50c5
SSDEEP

768:5dhO/poiiUcjlJIns5C2H9Xqk5nWEZ5SbTDa8uI7CPW5d:3w+jjgnsM2H9XqcnW85SbT5uIV

Score

10^/10

xenorat discovery rat trojan

Malware Config

Extracted

Family

xenorat

108.234.74.132

Mutex

Xeno_rat_nd8912d

Attributes

delay
5000
install_path
temp
port
5129
startup_name
Client

Signatures

XenorRat
XenorRat is a remote access trojan written in C#.
trojan rat xenorat

Checks computer location settings 2 TTPs 2 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-1-5-21-656926755-4116854191-210765258-1000\Control Panel\International\Geo\Nation	GCclientV1.exe
Key value queried	\REGISTRY\USER\S-1-5-21-656926755-4116854191-210765258-1000\Control Panel\International\Geo\Nation	GCclientV1.exe

Executes dropped EXE 1 IoCs

pid	Process
2708	GCclientV1.exe

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 7 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	GCclientV1.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	choice.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	GCclientV1.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence execution

Scheduled Task

T1053.005

pid	Process
4696	schtasks.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
2708	GCclientV1.exe
2708	GCclientV1.exe
2708	GCclientV1.exe
2708	GCclientV1.exe
2708	GCclientV1.exe
2708	GCclientV1.exe
2708	GCclientV1.exe
2708	GCclientV1.exe
2708	GCclientV1.exe
2708	GCclientV1.exe
2708	GCclientV1.exe
2708	GCclientV1.exe
2708	GCclientV1.exe
2708	GCclientV1.exe
2708	GCclientV1.exe
2708	GCclientV1.exe
2708	GCclientV1.exe
2708	GCclientV1.exe
2708	GCclientV1.exe
2708	GCclientV1.exe
2708	GCclientV1.exe
2708	GCclientV1.exe
2708	GCclientV1.exe
2708	GCclientV1.exe
2708	GCclientV1.exe
2708	GCclientV1.exe
2708	GCclientV1.exe
2708	GCclientV1.exe
2708	GCclientV1.exe
2708	GCclientV1.exe
2708	GCclientV1.exe
2708	GCclientV1.exe
2708	GCclientV1.exe
2708	GCclientV1.exe
2708	GCclientV1.exe
2708	GCclientV1.exe
2708	GCclientV1.exe
2708	GCclientV1.exe
2708	GCclientV1.exe
2708	GCclientV1.exe
2708	GCclientV1.exe
2708	GCclientV1.exe
2708	GCclientV1.exe
2708	GCclientV1.exe
2708	GCclientV1.exe
2708	GCclientV1.exe
2708	GCclientV1.exe
2708	GCclientV1.exe
2708	GCclientV1.exe
2708	GCclientV1.exe
2708	GCclientV1.exe
2708	GCclientV1.exe
2708	GCclientV1.exe
2708	GCclientV1.exe
2708	GCclientV1.exe
2708	GCclientV1.exe
2708	GCclientV1.exe
2708	GCclientV1.exe
2708	GCclientV1.exe
2708	GCclientV1.exe
2708	GCclientV1.exe
2708	GCclientV1.exe
2708	GCclientV1.exe
2708	GCclientV1.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2708	GCclientV1.exe

Suspicious use of WriteProcessMemory 18 IoCs

description	pid	Process	procid_target
PID 3856 wrote to memory of 2708	3856	GCclientV1.exe	87
PID 3856 wrote to memory of 2708	3856	GCclientV1.exe	87
PID 3856 wrote to memory of 2708	3856	GCclientV1.exe	87
PID 2708 wrote to memory of 4696	2708	GCclientV1.exe	94
PID 2708 wrote to memory of 4696	2708	GCclientV1.exe	94
PID 2708 wrote to memory of 4696	2708	GCclientV1.exe	94
PID 2708 wrote to memory of 824	2708	GCclientV1.exe	103
PID 2708 wrote to memory of 824	2708	GCclientV1.exe	103
PID 2708 wrote to memory of 824	2708	GCclientV1.exe	103
PID 2708 wrote to memory of 2824	2708	GCclientV1.exe	105
PID 2708 wrote to memory of 2824	2708	GCclientV1.exe	105
PID 2708 wrote to memory of 2824	2708	GCclientV1.exe	105
PID 2708 wrote to memory of 2256	2708	GCclientV1.exe	107
PID 2708 wrote to memory of 2256	2708	GCclientV1.exe	107
PID 2708 wrote to memory of 2256	2708	GCclientV1.exe	107
PID 2256 wrote to memory of 1928	2256	cmd.exe	109
PID 2256 wrote to memory of 1928	2256	cmd.exe	109
PID 2256 wrote to memory of 1928	2256	cmd.exe	109

C:\Users\Admin\AppData\Local\Temp\GCclientV1.exe
"C:\Users\Admin\AppData\Local\Temp\GCclientV1.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3856
- C:\Users\Admin\AppData\Local\Temp\XenoManager\GCclientV1.exe
  "C:\Users\Admin\AppData\Local\Temp\XenoManager\GCclientV1.exe"
  2⤵
  - Checks computer location settings
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2708
- - C:\Windows\SysWOW64\schtasks.exe
    "schtasks.exe" /Create /TN "Client" /XML "C:\Users\Admin\AppData\Local\Temp\tmpC9C8.tmp" /F
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:4696
- - C:\Windows\SysWOW64\schtasks.exe
    "schtasks.exe" /query /v /fo csv
    3⤵
    - System Location Discovery: System Language Discovery
    PID:824
- - C:\Windows\SysWOW64\schtasks.exe
    "schtasks.exe" /delete /tn "\Client" /f
    3⤵
    - System Location Discovery: System Language Discovery
    PID:2824
- - C:\Windows\SysWOW64\cmd.exe
    "C:\Windows\System32\cmd.exe" /C choice /C Y /N /D Y /T 3 & Del "C:\Users\Admin\AppData\Local\Temp\XenoManager\GCclientV1.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2256
  - - C:\Windows\SysWOW64\choice.exe
      choice /C Y /N /D Y /T 3
      4⤵
      System Location Discovery: System Language Discovery
      PID:1928

C:\Windows\System32\rundll32.exe
C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
1⤵
PID:2896

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Persistence

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Privilege Escalation

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Defense Evasion

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

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\GCclientV1.exe.log

Filesize
226B

MD5
916851e072fbabc4796d8916c5131092

SHA1
d48a602229a690c512d5fdaf4c8d77547a88e7a2

SHA256
7e750c904c43d27c89e55af809a679a96c0bb63fc511006ffbceffc2c7f6fb7d

SHA512
07ce4c881d6c411cac0b62364377e77950797c486804fb10d00555458716e3c47b1efc0d1f37e4cc3b7e6565bb402ca01c7ea8c963f9f9ace941a6e3883d2521

Download Submit
C:\Users\Admin\AppData\Local\Temp\XenoManager\GCclientV1.exe

Filesize
45KB

MD5
6c0987679747dfe56c8a4bc28860cb2f

SHA1
00ff1ad0b4000be73188c8b6a8d91a4a99c48b57

SHA256
6bed3b85a45853d8b4ce39d2db9ffbb2d54f90c15bde96caf9b08245e653fcec

SHA512
4970b77b4f67de3d6731085f762daf10ebe751449671ccb7fea31076bdc941488f79136fbd697fc3e363d7a2b727604eff676012f0c75602e22b5f5411bb50c5

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpC9C8.tmp

Filesize
1KB

MD5
a1e9c508509e964318440cf83a8a0b98

SHA1
0f575d72430d1da2ba1154ec2273d1a355099093

SHA256
f68ad25ac7180efd22da431ac63ed59ad9fe9c9866fceb86d430e40c52a1b771

SHA512
e1d1b1d121d2fc71f766784e463da13b21ec1756eb7de16edcac1182f1bf851ff5fb57431c2bd903b19f931237df5a1e1d5ff071ce2020398c44b49cc7646432

Download Submit
memory/2708-15-0x0000000074FB0000-0x0000000075760000-memory.dmp

Filesize
7.7MB

Download
memory/2708-18-0x0000000006230000-0x0000000006296000-memory.dmp

Filesize
408KB

Download
memory/2708-19-0x0000000074FB0000-0x0000000075760000-memory.dmp

Filesize
7.7MB

Download
memory/2708-20-0x0000000074FB0000-0x0000000075760000-memory.dmp

Filesize
7.7MB

Download
memory/2708-21-0x0000000074FB0000-0x0000000075760000-memory.dmp

Filesize
7.7MB

Download
memory/3856-0-0x0000000074FBE000-0x0000000074FBF000-memory.dmp

Filesize
4KB

Download
memory/3856-1-0x0000000000410000-0x0000000000422000-memory.dmp

Filesize
72KB

Download