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 4 IoCs

resource	yara_rule
behavioral1/memory/2004-1-0x0000000000CE0000-0x0000000000CF0000-memory.dmp	family_xworm
behavioral1/files/0x000c00000001225c-8.dat	family_xworm
behavioral1/memory/2964-14-0x00000000013C0000-0x00000000013D0000-memory.dmp	family_xworm
behavioral1/memory/1548-18-0x00000000000D0000-0x00000000000E0000-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
2964	ac9ef83f6d6ae646a08a97ecfe311a8beddacc41e0add58f8516b657f627ee18N.exe
1548	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-1-5-21-3692679935-4019334568-335155002-1000\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
2892	schtasks.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeDebugPrivilege	2004	ac9ef83f6d6ae646a08a97ecfe311a8beddacc41e0add58f8516b657f627ee18N.exe
Token: SeDebugPrivilege	2004	ac9ef83f6d6ae646a08a97ecfe311a8beddacc41e0add58f8516b657f627ee18N.exe
Token: SeDebugPrivilege	2964	ac9ef83f6d6ae646a08a97ecfe311a8beddacc41e0add58f8516b657f627ee18N.exe
Token: SeDebugPrivilege	1548	ac9ef83f6d6ae646a08a97ecfe311a8beddacc41e0add58f8516b657f627ee18N.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 2004 wrote to memory of 2892	2004	ac9ef83f6d6ae646a08a97ecfe311a8beddacc41e0add58f8516b657f627ee18N.exe	30
PID 2004 wrote to memory of 2892	2004	ac9ef83f6d6ae646a08a97ecfe311a8beddacc41e0add58f8516b657f627ee18N.exe	30
PID 2004 wrote to memory of 2892	2004	ac9ef83f6d6ae646a08a97ecfe311a8beddacc41e0add58f8516b657f627ee18N.exe	30
PID 2488 wrote to memory of 2964	2488	taskeng.exe	33
PID 2488 wrote to memory of 2964	2488	taskeng.exe	33
PID 2488 wrote to memory of 2964	2488	taskeng.exe	33
PID 2488 wrote to memory of 1548	2488	taskeng.exe	34
PID 2488 wrote to memory of 1548	2488	taskeng.exe	34
PID 2488 wrote to memory of 1548	2488	taskeng.exe	34

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:2004
- 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:2892

C:\Windows\system32\taskeng.exe
taskeng.exe {0B5950AA-1DBB-4BEE-89D1-B0805A9433E7} S-1-5-21-3692679935-4019334568-335155002-1000:BCXRJFKE\Admin:Interactive:[1]
1⤵
- Suspicious use of WriteProcessMemory
PID:2488
- C:\ProgramData\ac9ef83f6d6ae646a08a97ecfe311a8beddacc41e0add58f8516b657f627ee18N.exe
  C:\ProgramData\ac9ef83f6d6ae646a08a97ecfe311a8beddacc41e0add58f8516b657f627ee18N.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:2964
- C:\ProgramData\ac9ef83f6d6ae646a08a97ecfe311a8beddacc41e0add58f8516b657f627ee18N.exe
  C:\ProgramData\ac9ef83f6d6ae646a08a97ecfe311a8beddacc41e0add58f8516b657f627ee18N.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:1548

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
2efa1b0fccd8c71d0e50c32d5fee164c

SHA1
0e04e3f8dc5e1b8666f0b302746cbb4c1005e9a3

SHA256
1a7549e698cf8dd9b02942a972f457da2519467ca8cbf439cfe573708caba41a

SHA512
a1a7f05aee4d2e7e6414b2c1a58375ba5aa70a707883e46c588b292517de890c26e37fe6d191a2428a870de99a26f5d6957ab032618c878218b9cc62b85d4500

Download Submit
memory/1548-18-0x00000000000D0000-0x00000000000E0000-memory.dmp

Filesize
64KB

Download
memory/2004-0-0x000007FEF6403000-0x000007FEF6404000-memory.dmp

Filesize
4KB

Download
memory/2004-1-0x0000000000CE0000-0x0000000000CF0000-memory.dmp

Filesize
64KB

Download
memory/2004-10-0x000007FEF6400000-0x000007FEF6DEC000-memory.dmp

Filesize
9.9MB

Download
memory/2004-15-0x000007FEF6400000-0x000007FEF6DEC000-memory.dmp

Filesize
9.9MB

Download
memory/2964-14-0x00000000013C0000-0x00000000013D0000-memory.dmp

Filesize
64KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads