xworm | bab68a78b1116403210048871e781ae67207702c611dbc4b3923f79e68168948

Analysis

max time kernel
131s
max time network
146s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
12/05/2024, 11:41

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General

Target

ing.png.exe
Size

815KB
MD5

0e6661bdcb33fed46336ed39d8f71fdd
SHA1

fea97f35f26736bdbc8b982238aceadc5adc3af0
SHA256

bab68a78b1116403210048871e781ae67207702c611dbc4b3923f79e68168948
SHA512

0745a4bd7c845972761233924c14cfb574deb403903ebd687d51511c47cc1dea3c34df9543cef20c4c85227efd33145e1b3523ec4273b4e902460f585b3a833a
SSDEEP

12288:yCQjgAtAHM+vetZxF5EWry8AJGy0eurNcsqPz7rTBFx+i6CgbXwwefZHXPl:y5ZWs+OZVEWry8AF2rqPnrtFxDgbeR9

Score

10^/10

xworm rat trojan

Malware Config

Extracted

Family

xworm

Version

5.0

85.203.4.146:7000

Mutex

691v03c0g8lz9y97

Attributes

Install_directory
%Userprofile%
install_file
svchost.exe

aes.plain

Signatures

Detect Xworm Payload 2 IoCs

resource	yara_rule
behavioral2/files/0x0007000000023541-6.dat	family_xworm
behavioral2/memory/4544-15-0x0000000000570000-0x0000000000590000-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	ing.png.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\svchost.lnk	server_4.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\svchost.lnk	server_4.exe

Executes dropped EXE 1 IoCs

pid	Process
4544	server_4.exe

Looks up external IP address via web service 1 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
19	ip-api.com

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

System Information Discovery
T1082

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4544	server_4.exe
Token: SeDebugPrivilege	4544	server_4.exe

Suspicious use of WriteProcessMemory 2 IoCs

description	pid	Process	procid_target
PID 220 wrote to memory of 4544	220	ing.png.exe	95
PID 220 wrote to memory of 4544	220	ing.png.exe	95

C:\Users\Admin\AppData\Local\Temp\ing.png.exe
"C:\Users\Admin\AppData\Local\Temp\ing.png.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:220
- C:\Users\Admin\AppData\Local\Temp\RarSFX0\server_4.exe
  "C:\Users\Admin\AppData\Local\Temp\RarSFX0\server_4.exe"
  2⤵
  - Drops startup file
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:4544

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=3468,i,6166776566165096562,4582328833313060853,262144 --variations-seed-version --mojo-platform-channel-handle=4124 /prefetch:8
1⤵
PID:880

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\RarSFX0\server_4.exe

Filesize
105KB

MD5
5f9b4293a823d01bc72e2236a7844df2

SHA1
e58e40a4b7c1bed5e41dbffd64a27b8bf1968969

SHA256
972dc0b6a6abad6fe585b2d21c70f01cde423e4b7baf6a7e75d1e0670823f482

SHA512
9f9d4594cd9029f2dee8e9787f783e8a71ed9b84783f6510e9ac3e6d0f44b5e74eb294506e8de063811acb4ed34695ed681275b1a19e596c759ddf437a73789c

Download Submit
memory/4544-14-0x00007FFF90D63000-0x00007FFF90D65000-memory.dmp

Filesize
8KB

Download
memory/4544-15-0x0000000000570000-0x0000000000590000-memory.dmp

Filesize
128KB

Download
memory/4544-16-0x00007FFF90D60000-0x00007FFF91821000-memory.dmp

Filesize
10.8MB

Download
memory/4544-21-0x00007FFF90D63000-0x00007FFF90D65000-memory.dmp

Filesize
8KB

Download
memory/4544-22-0x00007FFF90D60000-0x00007FFF91821000-memory.dmp

Filesize
10.8MB

Download