xworm | 61a40644545efe9ca21ab98829d613af37024cd779126ed55e7fd404912671f4

Analysis

max time kernel
147s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
22-05-2024 18:55

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General

Target

xca.exe
Size

34KB
MD5

cddd357366899c16ac793a9c02a2bc91
SHA1

51b94c67865078445f18cd88a9094201925b43cf
SHA256

61a40644545efe9ca21ab98829d613af37024cd779126ed55e7fd404912671f4
SHA512

b6c0a5877cf6d42976819a8545a6f316b44938da10e2a2d383b389a7eeba3a12d4c14dd7198f4c77cf7e0ebf2507f5d66dac62e568a66a6f2622442a7fae0b16
SSDEEP

768:3teHgjgARFWlaPMDVMpXgdGlA9Fg9uNO/hrbj:9QERFaaUD+BgdeeFg9uNO/Vv

Score

10^/10

xworm rat trojan

Malware Config

Extracted

Family

xworm

Version

5.0

friends-analytical.gl.at.ply.gg:44471

Mutex

1AMdFhkQS1xb2SWs

Attributes

Install_directory
%Userprofile%
install_file
svchost.exe

aes.plain

Signatures

Detect Xworm Payload 2 IoCs

Processes:

resource	yara_rule
behavioral2/memory/4716-1-0x0000000000EA0000-0x0000000000EAE000-memory.dmp	family_xworm
C:\Users\Admin\svchost.exe	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

Processes:

xca.exe

description ioc process

Key value queried \REGISTRY\USER\S-1-5-21-1181767204-2009306918-3718769404-1000\Control Panel\International\Geo\Nation xca.exe
Executes dropped EXE 3 IoCs

Processes:

svchost.exesvchost.exesvchost.exe

pid process

3056 svchost.exe
3024 svchost.exe
3056 svchost.exe
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

Processes:

schtasks.exe

pid process

4964 schtasks.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-1181767204-2009306918-3718769404-1000\Control Panel\International\Geo\Nation	xca.exe

pid	process
3056	svchost.exe
3024	svchost.exe
3056	svchost.exe

pid	process
4964	schtasks.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

Processes:

xca.exesvchost.exesvchost.exesvchost.exe

description	pid	process
Token: SeDebugPrivilege	4716	xca.exe
Token: SeDebugPrivilege	3056	svchost.exe
Token: SeDebugPrivilege	3024	svchost.exe
Token: SeDebugPrivilege	3056	svchost.exe

Suspicious use of WriteProcessMemory 2 IoCs

Processes:

xca.exe

description pid process target process

PID 4716 wrote to memory of 4964 4716 xca.exe schtasks.exe
PID 4716 wrote to memory of 4964 4716 xca.exe schtasks.exe
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

description	pid	process	target process
PID 4716 wrote to memory of 4964	4716	xca.exe	schtasks.exe
PID 4716 wrote to memory of 4964	4716	xca.exe	schtasks.exe

C:\Users\Admin\AppData\Local\Temp\xca.exe
"C:\Users\Admin\AppData\Local\Temp\xca.exe"
1⤵
- Checks computer location settings
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4716

C:\Windows\System32\schtasks.exe
"C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "svchost" /tr "C:\Users\Admin\svchost.exe"
2⤵
- Creates scheduled task(s)
PID:4964

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=4028,i,10373433614523925616,13586256558317053467,262144 --variations-seed-version --mojo-platform-channel-handle=4200 /prefetch:8
1⤵
PID:1140

C:\Users\Admin\svchost.exe
C:\Users\Admin\svchost.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:3056

C:\Users\Admin\svchost.exe
C:\Users\Admin\svchost.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:3024

C:\Users\Admin\svchost.exe
C:\Users\Admin\svchost.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:3056

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Scheduled Task/Job

T1053

Persistence

Scheduled Task/Job

T1053

Privilege Escalation

Scheduled Task/Job

T1053

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\svchost.exe.log
Filesize
654B

MD5
2ff39f6c7249774be85fd60a8f9a245e

SHA1
684ff36b31aedc1e587c8496c02722c6698c1c4e

SHA256
e1b91642d85d98124a6a31f710e137ab7fd90dec30e74a05ab7fcf3b7887dced

SHA512
1d7e8b92ef4afd463d62cfa7e8b9d1799db5bf2a263d3cd7840df2e0a1323d24eb595b5f8eb615c6cb15f9e3a7b4fc99f8dd6a3d34479222e966ec708998aed1

Download Submit
C:\Users\Admin\svchost.exe
Filesize
34KB

MD5
cddd357366899c16ac793a9c02a2bc91

SHA1
51b94c67865078445f18cd88a9094201925b43cf

SHA256
61a40644545efe9ca21ab98829d613af37024cd779126ed55e7fd404912671f4

SHA512
b6c0a5877cf6d42976819a8545a6f316b44938da10e2a2d383b389a7eeba3a12d4c14dd7198f4c77cf7e0ebf2507f5d66dac62e568a66a6f2622442a7fae0b16

Download Submit
memory/3056-6-0x00007FF939B90000-0x00007FF93A651000-memory.dmp

Filesize
10.8MB

Download
memory/3056-8-0x00007FF939B90000-0x00007FF93A651000-memory.dmp

Filesize
10.8MB

Download
memory/4716-0-0x00007FF939B93000-0x00007FF939B95000-memory.dmp

Filesize
8KB

Download
memory/4716-1-0x0000000000EA0000-0x0000000000EAE000-memory.dmp

Filesize
56KB

Download
memory/4716-3-0x00007FF939B90000-0x00007FF93A651000-memory.dmp

Filesize
10.8MB

Download
memory/4716-9-0x00007FF939B90000-0x00007FF93A651000-memory.dmp

Filesize
10.8MB

Download