xworm | a49159d719d1dbce57fb089a7388cd4a0123818a9ea1185bb5073b38d6a35960

General

Target
288ed7575cd72d464a6c543e66100440_NeikiAnalytics.exe
Size 1.0MB
Sample240612-jgqqaavclm
SHA256 a49159d719d1dbce57fb089a7388cd4a0123818a9ea1185bb5073b38d6a35960
MD5 288ed7575cd72d464a6c543e66100440
SHA1 e6aa4a02447206dfe15e79707ddbab7e960bfafb
SHA512 56249e7a473b6f7f00f276535c879880ae8f56a14aaf27128020e14587f9b23dc86844aa969d163c5260eba99d8af208e63dd51b4b53a3b84400e3c941a132d1
SSDEEP 3072:Fd0ZygrrggrgrgrgrAkzNjcWUlS+oHpR2OPKR:wZJoNaSpRVP
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

xworm persistence rat trojan

Malware Config

Extracted

Family

xworm

C2

teens-info.gl.at.ply.gg:49265

Attributes

Install_directory
%Temp%
install_file
USB.exe

Signatures

Detect Xworm Payload 2 IoCs

resource	yara_rule
behavioral2/files/0x00090000000235b8-4.dat	family_xworm
behavioral2/memory/4444-7-0x0000000000AC0000-0x0000000000AD4000-memory.dmp	family_xworm

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

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-1-5-21-1181767204-2009306918-3718769404-1000\Control Panel\International\Geo\Nation	0.dll

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\WindowsLixwina.lnk	0.dll
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\WindowsLixwina.lnk	0.dll

Executes dropped EXE 3 IoCs

pid	Process
4444	0.dll
3368	WindowsLixwina
1648	WindowsLixwina

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-1-5-21-1181767204-2009306918-3718769404-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\WindowsLixwina = "C:\\Users\\Admin\\AppData\\Local\\Temp\\WindowsLixwina"	0.dll

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

System Information Discovery
T1082

Creates scheduled task(s) 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence

Scheduled Task/Job

T1053

pid	Process
4644	schtasks.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeDebugPrivilege	4444	0.dll
Token: SeDebugPrivilege	4444	0.dll
Token: SeDebugPrivilege	3368	WindowsLixwina
Token: SeDebugPrivilege	1648	WindowsLixwina

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
616	288ed7575cd72d464a6c543e66100440_NeikiAnalytics.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 616 wrote to memory of 4444	616	288ed7575cd72d464a6c543e66100440_NeikiAnalytics.exe	89
PID 616 wrote to memory of 4444	616	288ed7575cd72d464a6c543e66100440_NeikiAnalytics.exe	89
PID 4444 wrote to memory of 4644	4444	0.dll	96
PID 4444 wrote to memory of 4644	4444	0.dll	96

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\288ed7575cd72d464a6c543e66100440_NeikiAnalytics.exe
"C:\Users\Admin\AppData\Local\Temp\288ed7575cd72d464a6c543e66100440_NeikiAnalytics.exe"
1⤵
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:616
- C:\Users\Admin\AppData\Local\Temp\0.dll
  C:\Users\Admin\AppData\Local\Temp\0.dll
  2⤵
  - Checks computer location settings
  - Drops startup file
  - Executes dropped EXE
  - Adds Run key to start application
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:4444
- - C:\Windows\System32\schtasks.exe
    "C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "WindowsLixwina" /tr "C:\Users\Admin\AppData\Local\Temp\WindowsLixwina"
    3⤵
    - Creates scheduled task(s)
    PID:4644

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --field-trial-handle=4356,i,3724086843943218842,1026644135694712596,262144 --variations-seed-version --mojo-platform-channel-handle=3884 /prefetch:8
1⤵
PID:1852

C:\Users\Admin\AppData\Local\Temp\WindowsLixwina
C:\Users\Admin\AppData\Local\Temp\WindowsLixwina
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:3368

C:\Users\Admin\AppData\Local\Temp\WindowsLixwina
C:\Users\Admin\AppData\Local\Temp\WindowsLixwina
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:1648

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

1

T1053

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

Scheduled Task/Job

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

Scheduled Task/Job

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

2

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

WindowsLixwina.log

Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\WindowsLixwina.log
Size 654B
SHA256 e1b91642d85d98124a6a31f710e137ab7fd90dec30e74a05ab7fcf3b7887dced
MD5 2ff39f6c7249774be85fd60a8f9a245e
SHA1 684ff36b31aedc1e587c8496c02722c6698c1c4e
SHA512 1d7e8b92ef4afd463d62cfa7e8b9d1799db5bf2a263d3cd7840df2e0a1323d24eb595b5f8eb615c6cb15f9e3a7b4fc99f8dd6a3d34479222e966ec708998aed1
MD5 SHA1 SHA512

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0.dll

Path C:\Users\Admin\AppData\Local\Temp\0.dll
Size 53KB
SHA256 511cbe9af56455c43ef5bcfcee59d5433f4d1eb45a63ed2d9cd257b314ba2ddf
MD5 038d1a5cb4230bc9efcfdd60bcb892cf
SHA1 3ec073ff4440cfd3f5971e016ba553efd0ffe10a
SHA512 6ca389708085a16d69573f9742d2206f1c11600ad5c00f45273c47f0bec8d647c39a9cee013d3762bd907537ca97a509bab315eb7df67ecf4d593032568d6c66
SSDEEP 1536:30ycBIQt4BBIKqQaIXxwPXp0kbW9pWKzzN2lTOhQn:30yYIQmBBBqQJkWkbGFgTOhQn
MD5 SHA1 SHA512 SSDEEP

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memory/3368-16-0x00007FFF75660000-0x00007FFF76121000-memory.dmp

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memory/3368-18-0x00007FFF75660000-0x00007FFF76121000-memory.dmp

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memory/4444-6-0x00007FFF75663000-0x00007FFF75665000-memory.dmp

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memory/4444-7-0x0000000000AC0000-0x0000000000AD4000-memory.dmp

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memory/4444-11-0x00007FFF75660000-0x00007FFF76121000-memory.dmp

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memory/4444-12-0x00007FFF75660000-0x00007FFF76121000-memory.dmp

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Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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