xworm | 6f935745c6bffb29341d1766661ba96bfef6bdf0fa016cec6169afc33a624f47

General

Target

6f935745c6bffb29341d1766661ba96bfef6bdf0fa016cec6169afc33a624f47.exe
Size

37KB
MD5

ed094471653276ce7f933ff63508c4b6
SHA1

5fe4c184e7915d7d79ada1f123de7263f7e3f41a
SHA256

6f935745c6bffb29341d1766661ba96bfef6bdf0fa016cec6169afc33a624f47
SHA512

0b1a108dea4f7540b5a52d4080f34d7acf6e91d90412acbc75e02510771b8e28d65f912756263bd33f986cb28a0e935616b14f1913d93e68c71f9f82c69d7fee
SSDEEP

768:ztGRiYTgP/NNo5GfjS61216La/FP192iOphi7X4:zkRi+gsGu6McLgFt92iOpeX4

Score

10^/10

xworm persistence rat trojan

Malware Config

Extracted

Family

xworm

Version

3.1

C2

role-fresh.gl.at.ply.gg:2522

Mutex

tZ4Yyzni0aPUlFjz

Attributes

Install_directory
%ProgramData%
install_file
USB.exe

aes.plain

Signatures

Detect Xworm Payload 2 IoCs

resource	yara_rule
behavioral2/memory/4312-1-0x0000000000F00000-0x0000000000F10000-memory.dmp	family_xworm
behavioral2/files/0x000c000000023ad4-8.dat	family_xworm

Xworm
Xworm is a remote access trojan written in C#.
trojan rat xworm
Xworm family
xworm

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-1-5-21-493223053-2004649691-1575712786-1000\Control Panel\International\Geo\Nation	6f935745c6bffb29341d1766661ba96bfef6bdf0fa016cec6169afc33a624f47.exe

Drops startup file 2 IoCs

description	ioc	Process
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\6f935745c6bffb29341d1766661ba96bfef6bdf0fa016cec6169afc33a624f47.lnk	6f935745c6bffb29341d1766661ba96bfef6bdf0fa016cec6169afc33a624f47.exe
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\6f935745c6bffb29341d1766661ba96bfef6bdf0fa016cec6169afc33a624f47.lnk	6f935745c6bffb29341d1766661ba96bfef6bdf0fa016cec6169afc33a624f47.exe

Executes dropped EXE 3 IoCs

pid	Process
3084	6f935745c6bffb29341d1766661ba96bfef6bdf0fa016cec6169afc33a624f47.exe
4676	6f935745c6bffb29341d1766661ba96bfef6bdf0fa016cec6169afc33a624f47.exe
1116	6f935745c6bffb29341d1766661ba96bfef6bdf0fa016cec6169afc33a624f47.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-1-5-21-493223053-2004649691-1575712786-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\6f935745c6bffb29341d1766661ba96bfef6bdf0fa016cec6169afc33a624f47 = "C:\\ProgramData\\6f935745c6bffb29341d1766661ba96bfef6bdf0fa016cec6169afc33a624f47.exe"	6f935745c6bffb29341d1766661ba96bfef6bdf0fa016cec6169afc33a624f47.exe

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

System Information Discovery
T1082

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
4948	schtasks.exe

Suspicious use of AdjustPrivilegeToken 5 IoCs

description	pid	Process
Token: SeDebugPrivilege	4312	6f935745c6bffb29341d1766661ba96bfef6bdf0fa016cec6169afc33a624f47.exe
Token: SeDebugPrivilege	4312	6f935745c6bffb29341d1766661ba96bfef6bdf0fa016cec6169afc33a624f47.exe
Token: SeDebugPrivilege	3084	6f935745c6bffb29341d1766661ba96bfef6bdf0fa016cec6169afc33a624f47.exe
Token: SeDebugPrivilege	4676	6f935745c6bffb29341d1766661ba96bfef6bdf0fa016cec6169afc33a624f47.exe
Token: SeDebugPrivilege	1116	6f935745c6bffb29341d1766661ba96bfef6bdf0fa016cec6169afc33a624f47.exe

Suspicious use of WriteProcessMemory 2 IoCs

description	pid	Process	procid_target
PID 4312 wrote to memory of 4948	4312	6f935745c6bffb29341d1766661ba96bfef6bdf0fa016cec6169afc33a624f47.exe	93
PID 4312 wrote to memory of 4948	4312	6f935745c6bffb29341d1766661ba96bfef6bdf0fa016cec6169afc33a624f47.exe	93

Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
persistence

Query Registry
T1012

C:\Users\Admin\AppData\Local\Temp\6f935745c6bffb29341d1766661ba96bfef6bdf0fa016cec6169afc33a624f47.exe
"C:\Users\Admin\AppData\Local\Temp\6f935745c6bffb29341d1766661ba96bfef6bdf0fa016cec6169afc33a624f47.exe"
1⤵
- Checks computer location settings
- Drops startup file
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4312
- C:\Windows\System32\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "6f935745c6bffb29341d1766661ba96bfef6bdf0fa016cec6169afc33a624f47" /tr "C:\ProgramData\6f935745c6bffb29341d1766661ba96bfef6bdf0fa016cec6169afc33a624f47.exe"
  2⤵
  - Scheduled Task/Job: Scheduled Task
  PID:4948

C:\ProgramData\6f935745c6bffb29341d1766661ba96bfef6bdf0fa016cec6169afc33a624f47.exe
C:\ProgramData\6f935745c6bffb29341d1766661ba96bfef6bdf0fa016cec6169afc33a624f47.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:3084

C:\ProgramData\6f935745c6bffb29341d1766661ba96bfef6bdf0fa016cec6169afc33a624f47.exe
C:\ProgramData\6f935745c6bffb29341d1766661ba96bfef6bdf0fa016cec6169afc33a624f47.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:4676

C:\ProgramData\6f935745c6bffb29341d1766661ba96bfef6bdf0fa016cec6169afc33a624f47.exe
C:\ProgramData\6f935745c6bffb29341d1766661ba96bfef6bdf0fa016cec6169afc33a624f47.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:1116

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

2

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\ProgramData\6f935745c6bffb29341d1766661ba96bfef6bdf0fa016cec6169afc33a624f47.exe

Filesize
37KB

MD5
ed094471653276ce7f933ff63508c4b6

SHA1
5fe4c184e7915d7d79ada1f123de7263f7e3f41a

SHA256
6f935745c6bffb29341d1766661ba96bfef6bdf0fa016cec6169afc33a624f47

SHA512
0b1a108dea4f7540b5a52d4080f34d7acf6e91d90412acbc75e02510771b8e28d65f912756263bd33f986cb28a0e935616b14f1913d93e68c71f9f82c69d7fee

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\6f935745c6bffb29341d1766661ba96bfef6bdf0fa016cec6169afc33a624f47.exe.log

Filesize
654B

MD5
2ff39f6c7249774be85fd60a8f9a245e

SHA1
684ff36b31aedc1e587c8496c02722c6698c1c4e

SHA256
e1b91642d85d98124a6a31f710e137ab7fd90dec30e74a05ab7fcf3b7887dced

SHA512
1d7e8b92ef4afd463d62cfa7e8b9d1799db5bf2a263d3cd7840df2e0a1323d24eb595b5f8eb615c6cb15f9e3a7b4fc99f8dd6a3d34479222e966ec708998aed1

Download Submit
memory/3084-15-0x00007FFC27F20000-0x00007FFC289E1000-memory.dmp

Filesize
10.8MB

Download
memory/3084-17-0x00007FFC27F20000-0x00007FFC289E1000-memory.dmp

Filesize
10.8MB

Download
memory/4312-0-0x00007FFC27F23000-0x00007FFC27F25000-memory.dmp

Filesize
8KB

Download
memory/4312-1-0x0000000000F00000-0x0000000000F10000-memory.dmp

Filesize
64KB

Download
memory/4312-10-0x00007FFC27F20000-0x00007FFC289E1000-memory.dmp

Filesize
10.8MB

Download
memory/4312-11-0x00007FFC27F23000-0x00007FFC27F25000-memory.dmp

Filesize
8KB

Download
memory/4312-12-0x00007FFC27F20000-0x00007FFC289E1000-memory.dmp

Filesize
10.8MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads