xworm | ac9ef83f6d6ae646a08a97ecfe311a8beddacc41e0add58f8516b657f627ee18

General

Target

ac9ef83f6d6ae646a08a97ecfe311a8beddacc41e0add58f8516b657f627ee18N.exe
Size

37KB
MD5

d8dfc68d21a7cdd095bc03963a8b2fb0
SHA1

7d132da41aa0180c5895132e559f6245f1feacbc
SHA256

ac9ef83f6d6ae646a08a97ecfe311a8beddacc41e0add58f8516b657f627ee18
SHA512

32080903a12794c3e60d8572a7c50b693a5f988fabd1679bbcce9e1bba2a6e038fa023ad95b95dd00d14e08b1ea95194ce03e371bef29b67be4a2c01872c8637
SSDEEP

768:ztGRiYTgP/NNo5GfjS61216La/FP192iOphi7X:zkRi+gsGu6McLgFt92iOpeX

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 3 IoCs

resource	yara_rule
behavioral1/memory/2328-1-0x0000000000B40000-0x0000000000B50000-memory.dmp	family_xworm
behavioral1/files/0x000f000000012276-8.dat	family_xworm
behavioral1/memory/2588-16-0x00000000012B0000-0x00000000012C0000-memory.dmp	family_xworm

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

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
2588	ac9ef83f6d6ae646a08a97ecfe311a8beddacc41e0add58f8516b657f627ee18N.exe
2764	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-1-5-21-4177215427-74451935-3209572229-1000\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
2460	schtasks.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeDebugPrivilege	2328	ac9ef83f6d6ae646a08a97ecfe311a8beddacc41e0add58f8516b657f627ee18N.exe
Token: SeDebugPrivilege	2328	ac9ef83f6d6ae646a08a97ecfe311a8beddacc41e0add58f8516b657f627ee18N.exe
Token: SeDebugPrivilege	2588	ac9ef83f6d6ae646a08a97ecfe311a8beddacc41e0add58f8516b657f627ee18N.exe
Token: SeDebugPrivilege	2764	ac9ef83f6d6ae646a08a97ecfe311a8beddacc41e0add58f8516b657f627ee18N.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 2328 wrote to memory of 2460	2328	ac9ef83f6d6ae646a08a97ecfe311a8beddacc41e0add58f8516b657f627ee18N.exe	30
PID 2328 wrote to memory of 2460	2328	ac9ef83f6d6ae646a08a97ecfe311a8beddacc41e0add58f8516b657f627ee18N.exe	30
PID 2328 wrote to memory of 2460	2328	ac9ef83f6d6ae646a08a97ecfe311a8beddacc41e0add58f8516b657f627ee18N.exe	30
PID 1972 wrote to memory of 2588	1972	taskeng.exe	34
PID 1972 wrote to memory of 2588	1972	taskeng.exe	34
PID 1972 wrote to memory of 2588	1972	taskeng.exe	34
PID 1972 wrote to memory of 2764	1972	taskeng.exe	35
PID 1972 wrote to memory of 2764	1972	taskeng.exe	35
PID 1972 wrote to memory of 2764	1972	taskeng.exe	35

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⤵
- Drops startup file
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2328
- 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:2460

C:\Windows\system32\taskeng.exe
taskeng.exe {E98EAFD4-040C-4447-97E8-BA1F29D3D259} S-1-5-21-4177215427-74451935-3209572229-1000:JSMURNPT\Admin:Interactive:[1]
1⤵
- Suspicious use of WriteProcessMemory
PID:1972
- C:\ProgramData\ac9ef83f6d6ae646a08a97ecfe311a8beddacc41e0add58f8516b657f627ee18N.exe
  C:\ProgramData\ac9ef83f6d6ae646a08a97ecfe311a8beddacc41e0add58f8516b657f627ee18N.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:2588
- C:\ProgramData\ac9ef83f6d6ae646a08a97ecfe311a8beddacc41e0add58f8516b657f627ee18N.exe
  C:\ProgramData\ac9ef83f6d6ae646a08a97ecfe311a8beddacc41e0add58f8516b657f627ee18N.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:2764

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

1

T1012

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\ProgramData\ac9ef83f6d6ae646a08a97ecfe311a8beddacc41e0add58f8516b657f627ee18N.exe

Filesize
37KB

MD5
d8dfc68d21a7cdd095bc03963a8b2fb0

SHA1
7d132da41aa0180c5895132e559f6245f1feacbc

SHA256
ac9ef83f6d6ae646a08a97ecfe311a8beddacc41e0add58f8516b657f627ee18

SHA512
32080903a12794c3e60d8572a7c50b693a5f988fabd1679bbcce9e1bba2a6e038fa023ad95b95dd00d14e08b1ea95194ce03e371bef29b67be4a2c01872c8637

Download Submit
memory/2328-0-0x000007FEF6083000-0x000007FEF6084000-memory.dmp

Filesize
4KB

Download
memory/2328-1-0x0000000000B40000-0x0000000000B50000-memory.dmp

Filesize
64KB

Download
memory/2328-10-0x000007FEF6080000-0x000007FEF6A6C000-memory.dmp

Filesize
9.9MB

Download
memory/2328-11-0x000007FEF6083000-0x000007FEF6084000-memory.dmp

Filesize
4KB

Download
memory/2328-12-0x000007FEF6080000-0x000007FEF6A6C000-memory.dmp

Filesize
9.9MB

Download
memory/2588-16-0x00000000012B0000-0x00000000012C0000-memory.dmp

Filesize
64KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads