xworm | 1a7549e698cf8dd9b02942a972f457da2519467ca8cbf439cfe573708caba41a

General

Target

ac9ef83f6d6ae646a08a97ecfe311a8beddacc41e0add58f8516b657f627ee18N.exe
Size

37KB
MD5

2efa1b0fccd8c71d0e50c32d5fee164c
SHA1

0e04e3f8dc5e1b8666f0b302746cbb4c1005e9a3
SHA256

1a7549e698cf8dd9b02942a972f457da2519467ca8cbf439cfe573708caba41a
SHA512

a1a7f05aee4d2e7e6414b2c1a58375ba5aa70a707883e46c588b292517de890c26e37fe6d191a2428a870de99a26f5d6957ab032618c878218b9cc62b85d4500
SSDEEP

768:ztGRiYTgP/NNo5GfjS61216La/FP192iOphi7X0:zkRi+gsGu6McLgFt92iOpeX0

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/3920-1-0x00000000005C0000-0x00000000005D0000-memory.dmp	family_xworm
behavioral2/files/0x000f000000023b39-8.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-1-5-21-3227495264-2217614367-4027411560-1000\Control Panel\International\Geo\Nation	ac9ef83f6d6ae646a08a97ecfe311a8beddacc41e0add58f8516b657f627ee18N.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\ac9ef83f6d6ae646a08a97ecfe311a8beddacc41e0add58f8516b657f627ee18N.lnk	ac9ef83f6d6ae646a08a97ecfe311a8beddacc41e0add58f8516b657f627ee18N.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\ac9ef83f6d6ae646a08a97ecfe311a8beddacc41e0add58f8516b657f627ee18N.lnk	ac9ef83f6d6ae646a08a97ecfe311a8beddacc41e0add58f8516b657f627ee18N.exe

Executes dropped EXE 2 IoCs

pid	Process
2424	ac9ef83f6d6ae646a08a97ecfe311a8beddacc41e0add58f8516b657f627ee18N.exe
2256	ac9ef83f6d6ae646a08a97ecfe311a8beddacc41e0add58f8516b657f627ee18N.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-1-5-21-3227495264-2217614367-4027411560-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ac9ef83f6d6ae646a08a97ecfe311a8beddacc41e0add58f8516b657f627ee18N = "C:\\ProgramData\\ac9ef83f6d6ae646a08a97ecfe311a8beddacc41e0add58f8516b657f627ee18N.exe"	ac9ef83f6d6ae646a08a97ecfe311a8beddacc41e0add58f8516b657f627ee18N.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
4436	schtasks.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeDebugPrivilege	3920	ac9ef83f6d6ae646a08a97ecfe311a8beddacc41e0add58f8516b657f627ee18N.exe
Token: SeDebugPrivilege	3920	ac9ef83f6d6ae646a08a97ecfe311a8beddacc41e0add58f8516b657f627ee18N.exe
Token: SeDebugPrivilege	2424	ac9ef83f6d6ae646a08a97ecfe311a8beddacc41e0add58f8516b657f627ee18N.exe
Token: SeDebugPrivilege	2256	ac9ef83f6d6ae646a08a97ecfe311a8beddacc41e0add58f8516b657f627ee18N.exe

Suspicious use of WriteProcessMemory 2 IoCs

description	pid	Process	procid_target
PID 3920 wrote to memory of 4436	3920	ac9ef83f6d6ae646a08a97ecfe311a8beddacc41e0add58f8516b657f627ee18N.exe	90
PID 3920 wrote to memory of 4436	3920	ac9ef83f6d6ae646a08a97ecfe311a8beddacc41e0add58f8516b657f627ee18N.exe	90

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\ac9ef83f6d6ae646a08a97ecfe311a8beddacc41e0add58f8516b657f627ee18N.exe
"C:\Users\Admin\AppData\Local\Temp\ac9ef83f6d6ae646a08a97ecfe311a8beddacc41e0add58f8516b657f627ee18N.exe"
1⤵
- Checks computer location settings
- Drops startup file
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3920
- C:\Windows\System32\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "ac9ef83f6d6ae646a08a97ecfe311a8beddacc41e0add58f8516b657f627ee18N" /tr "C:\ProgramData\ac9ef83f6d6ae646a08a97ecfe311a8beddacc41e0add58f8516b657f627ee18N.exe"
  2⤵
  - Scheduled Task/Job: Scheduled Task
  PID:4436

C:\ProgramData\ac9ef83f6d6ae646a08a97ecfe311a8beddacc41e0add58f8516b657f627ee18N.exe
C:\ProgramData\ac9ef83f6d6ae646a08a97ecfe311a8beddacc41e0add58f8516b657f627ee18N.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:2424

C:\ProgramData\ac9ef83f6d6ae646a08a97ecfe311a8beddacc41e0add58f8516b657f627ee18N.exe
C:\ProgramData\ac9ef83f6d6ae646a08a97ecfe311a8beddacc41e0add58f8516b657f627ee18N.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:2256

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\ac9ef83f6d6ae646a08a97ecfe311a8beddacc41e0add58f8516b657f627ee18N.exe

Filesize
37KB

MD5
2efa1b0fccd8c71d0e50c32d5fee164c

SHA1
0e04e3f8dc5e1b8666f0b302746cbb4c1005e9a3

SHA256
1a7549e698cf8dd9b02942a972f457da2519467ca8cbf439cfe573708caba41a

SHA512
a1a7f05aee4d2e7e6414b2c1a58375ba5aa70a707883e46c588b292517de890c26e37fe6d191a2428a870de99a26f5d6957ab032618c878218b9cc62b85d4500

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\ac9ef83f6d6ae646a08a97ecfe311a8beddacc41e0add58f8516b657f627ee18N.exe.log

Filesize
654B

MD5
2ff39f6c7249774be85fd60a8f9a245e

SHA1
684ff36b31aedc1e587c8496c02722c6698c1c4e

SHA256
e1b91642d85d98124a6a31f710e137ab7fd90dec30e74a05ab7fcf3b7887dced

SHA512
1d7e8b92ef4afd463d62cfa7e8b9d1799db5bf2a263d3cd7840df2e0a1323d24eb595b5f8eb615c6cb15f9e3a7b4fc99f8dd6a3d34479222e966ec708998aed1

Download Submit
memory/2424-13-0x00007FFBFD200000-0x00007FFBFDCC1000-memory.dmp

Filesize
10.8MB

Download
memory/2424-16-0x00007FFBFD200000-0x00007FFBFDCC1000-memory.dmp

Filesize
10.8MB

Download
memory/3920-0-0x00007FFBFD203000-0x00007FFBFD205000-memory.dmp

Filesize
8KB

Download
memory/3920-1-0x00000000005C0000-0x00000000005D0000-memory.dmp

Filesize
64KB

Download
memory/3920-10-0x00007FFBFD200000-0x00007FFBFDCC1000-memory.dmp

Filesize
10.8MB

Download
memory/3920-14-0x00007FFBFD203000-0x00007FFBFD205000-memory.dmp

Filesize
8KB

Download
memory/3920-17-0x00007FFBFD200000-0x00007FFBFDCC1000-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