xworm | e1ea405efb08d4a7d254423fc5b700021eb653b1545d120c0f6cf4ff31c7f0ae

Analysis

max time kernel
1790s
max time network
1794s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
02/05/2024, 02:08

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General

Target

a ton of ya/ya - Copy - Copy - Copy - Copy - Copy - Copy - Copy - Copy - Copy - Copy - Copy - Copy -.exe
Size

63KB
MD5

222c2d239f4c8a1d73c736c9cc712807
SHA1

c3aa61bd6f8cc640bcfa74c40d9283c9c08c7b3c
SHA256

ff43049677c57277f12a1d97f02af3029d7b75b5ad40303a28f1b0452997969d
SHA512

1f2fea85e45e93916306c234b916d6b4b200dac9656e44f4555f825dd8677cb5e927bd5e7a74bf2fb2f6972a3e6e2d294a6104add162ba3d53a0e6cfedef6a02
SSDEEP

1536:tJc/5q1qoR5PDdAZcIED4VuCkbFybjQ9f0jQRmONww+W:7c/iqoJekbFEQ9W+mONP+W

Score

10^/10

xworm persistence rat trojan

Malware Config

Extracted

Family

xworm

127.0.0.1:23638

209.25.140.1:5525:23638

bring-recorder.gl.at.ply.gg:23638

action-yesterday.gl.at.ply.gg:23638

147.185.221.19:23638

then-wheel.gl.at.ply.gg::23638

then-wheel.gl.at.ply.gg:23638

teen-modes.gl.at.ply.gg:23638

Attributes

Install_directory
%LocalAppData%
install_file
uwumonster.exe

Signatures

Detect Xworm Payload 11 IoCs

resource	yara_rule
behavioral9/memory/2124-1-0x0000000000F60000-0x0000000000F76000-memory.dmp	family_xworm
behavioral9/files/0x000b000000015bb9-8.dat	family_xworm
behavioral9/memory/2548-10-0x0000000001120000-0x0000000001136000-memory.dmp	family_xworm
behavioral9/memory/2292-24-0x0000000001200000-0x0000000001216000-memory.dmp	family_xworm
behavioral9/memory/2588-26-0x00000000013A0000-0x00000000013B6000-memory.dmp	family_xworm
behavioral9/memory/2192-31-0x0000000000310000-0x0000000000326000-memory.dmp	family_xworm
behavioral9/memory/1596-33-0x0000000000390000-0x00000000003A6000-memory.dmp	family_xworm
behavioral9/memory/1412-36-0x0000000000D00000-0x0000000000D16000-memory.dmp	family_xworm
behavioral9/memory/2648-38-0x0000000000170000-0x0000000000186000-memory.dmp	family_xworm
behavioral9/memory/2020-40-0x00000000009C0000-0x00000000009D6000-memory.dmp	family_xworm
behavioral9/memory/2440-42-0x0000000001240000-0x0000000001256000-memory.dmp	family_xworm

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

Drops startup file 2 IoCs

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

Executes dropped EXE 30 IoCs

pid	Process
2548	uwumonster.exe
1832	uwumonster.exe
2876	uwumonster.exe
1476	uwumonster.exe
2360	uwumonster.exe
2484	uwumonster.exe
2644	uwumonster.exe
2280	uwumonster.exe
2212	uwumonster.exe
1916	uwumonster.exe
2292	uwumonster.exe
2588	uwumonster.exe
2680	uwumonster.exe
856	uwumonster.exe
1976	uwumonster.exe
2192	uwumonster.exe
1596	uwumonster.exe
2012	uwumonster.exe
1412	uwumonster.exe
2648	uwumonster.exe
2020	uwumonster.exe
2440	uwumonster.exe
1872	uwumonster.exe
2600	uwumonster.exe
2612	uwumonster.exe
2736	uwumonster.exe
2452	uwumonster.exe
1720	uwumonster.exe
1192	uwumonster.exe
1544	uwumonster.exe

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-1-5-21-2297530677-1229052932-2803917579-1000\Software\Microsoft\Windows\CurrentVersion\Run\uwumonster = "C:\\Users\\Admin\\AppData\\Local\\uwumonster.exe"	ya - Copy - Copy - Copy - Copy - Copy - Copy - Copy - Copy - Copy - Copy - Copy - Copy -.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

pid	Process
2916	schtasks.exe

Suspicious use of AdjustPrivilegeToken 31 IoCs

description	pid	Process
Token: SeDebugPrivilege	2124	ya - Copy - Copy - Copy - Copy - Copy - Copy - Copy - Copy - Copy - Copy - Copy - Copy -.exe
Token: SeDebugPrivilege	2124	ya - Copy - Copy - Copy - Copy - Copy - Copy - Copy - Copy - Copy - Copy - Copy - Copy -.exe
Token: SeDebugPrivilege	2548	uwumonster.exe
Token: SeDebugPrivilege	1832	uwumonster.exe
Token: SeDebugPrivilege	2876	uwumonster.exe
Token: SeDebugPrivilege	1476	uwumonster.exe
Token: SeDebugPrivilege	2360	uwumonster.exe
Token: SeDebugPrivilege	2484	uwumonster.exe
Token: SeDebugPrivilege	2644	uwumonster.exe
Token: SeDebugPrivilege	2280	uwumonster.exe
Token: SeDebugPrivilege	2212	uwumonster.exe
Token: SeDebugPrivilege	1916	uwumonster.exe
Token: SeDebugPrivilege	2292	uwumonster.exe
Token: SeDebugPrivilege	2588	uwumonster.exe
Token: SeDebugPrivilege	2680	uwumonster.exe
Token: SeDebugPrivilege	856	uwumonster.exe
Token: SeDebugPrivilege	1976	uwumonster.exe
Token: SeDebugPrivilege	2192	uwumonster.exe
Token: SeDebugPrivilege	1596	uwumonster.exe
Token: SeDebugPrivilege	1412	uwumonster.exe
Token: SeDebugPrivilege	2648	uwumonster.exe
Token: SeDebugPrivilege	2020	uwumonster.exe
Token: SeDebugPrivilege	2440	uwumonster.exe
Token: SeDebugPrivilege	1872	uwumonster.exe
Token: SeDebugPrivilege	2600	uwumonster.exe
Token: SeDebugPrivilege	2612	uwumonster.exe
Token: SeDebugPrivilege	2736	uwumonster.exe
Token: SeDebugPrivilege	2452	uwumonster.exe
Token: SeDebugPrivilege	1720	uwumonster.exe
Token: SeDebugPrivilege	1192	uwumonster.exe
Token: SeDebugPrivilege	1544	uwumonster.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 2124 wrote to memory of 2916	2124	ya - Copy - Copy - Copy - Copy - Copy - Copy - Copy - Copy - Copy - Copy - Copy - Copy -.exe	28
PID 2124 wrote to memory of 2916	2124	ya - Copy - Copy - Copy - Copy - Copy - Copy - Copy - Copy - Copy - Copy - Copy - Copy -.exe	28
PID 2124 wrote to memory of 2916	2124	ya - Copy - Copy - Copy - Copy - Copy - Copy - Copy - Copy - Copy - Copy - Copy - Copy -.exe	28
PID 2400 wrote to memory of 2548	2400	taskeng.exe	31
PID 2400 wrote to memory of 2548	2400	taskeng.exe	31
PID 2400 wrote to memory of 2548	2400	taskeng.exe	31
PID 2400 wrote to memory of 1832	2400	taskeng.exe	34
PID 2400 wrote to memory of 1832	2400	taskeng.exe	34
PID 2400 wrote to memory of 1832	2400	taskeng.exe	34
PID 2400 wrote to memory of 2876	2400	taskeng.exe	35
PID 2400 wrote to memory of 2876	2400	taskeng.exe	35
PID 2400 wrote to memory of 2876	2400	taskeng.exe	35
PID 2400 wrote to memory of 1476	2400	taskeng.exe	36
PID 2400 wrote to memory of 1476	2400	taskeng.exe	36
PID 2400 wrote to memory of 1476	2400	taskeng.exe	36
PID 2400 wrote to memory of 2360	2400	taskeng.exe	37
PID 2400 wrote to memory of 2360	2400	taskeng.exe	37
PID 2400 wrote to memory of 2360	2400	taskeng.exe	37
PID 2400 wrote to memory of 2484	2400	taskeng.exe	38
PID 2400 wrote to memory of 2484	2400	taskeng.exe	38
PID 2400 wrote to memory of 2484	2400	taskeng.exe	38
PID 2400 wrote to memory of 2644	2400	taskeng.exe	39
PID 2400 wrote to memory of 2644	2400	taskeng.exe	39
PID 2400 wrote to memory of 2644	2400	taskeng.exe	39
PID 2400 wrote to memory of 2280	2400	taskeng.exe	40
PID 2400 wrote to memory of 2280	2400	taskeng.exe	40
PID 2400 wrote to memory of 2280	2400	taskeng.exe	40
PID 2400 wrote to memory of 2212	2400	taskeng.exe	41
PID 2400 wrote to memory of 2212	2400	taskeng.exe	41
PID 2400 wrote to memory of 2212	2400	taskeng.exe	41
PID 2400 wrote to memory of 1916	2400	taskeng.exe	42
PID 2400 wrote to memory of 1916	2400	taskeng.exe	42
PID 2400 wrote to memory of 1916	2400	taskeng.exe	42
PID 2400 wrote to memory of 2292	2400	taskeng.exe	43
PID 2400 wrote to memory of 2292	2400	taskeng.exe	43
PID 2400 wrote to memory of 2292	2400	taskeng.exe	43
PID 2400 wrote to memory of 2588	2400	taskeng.exe	44
PID 2400 wrote to memory of 2588	2400	taskeng.exe	44
PID 2400 wrote to memory of 2588	2400	taskeng.exe	44
PID 2400 wrote to memory of 2680	2400	taskeng.exe	45
PID 2400 wrote to memory of 2680	2400	taskeng.exe	45
PID 2400 wrote to memory of 2680	2400	taskeng.exe	45
PID 2400 wrote to memory of 856	2400	taskeng.exe	46
PID 2400 wrote to memory of 856	2400	taskeng.exe	46
PID 2400 wrote to memory of 856	2400	taskeng.exe	46
PID 2400 wrote to memory of 1976	2400	taskeng.exe	47
PID 2400 wrote to memory of 1976	2400	taskeng.exe	47
PID 2400 wrote to memory of 1976	2400	taskeng.exe	47
PID 2400 wrote to memory of 2192	2400	taskeng.exe	48
PID 2400 wrote to memory of 2192	2400	taskeng.exe	48
PID 2400 wrote to memory of 2192	2400	taskeng.exe	48
PID 2400 wrote to memory of 1596	2400	taskeng.exe	49
PID 2400 wrote to memory of 1596	2400	taskeng.exe	49
PID 2400 wrote to memory of 1596	2400	taskeng.exe	49
PID 2400 wrote to memory of 2012	2400	taskeng.exe	50
PID 2400 wrote to memory of 2012	2400	taskeng.exe	50
PID 2400 wrote to memory of 2012	2400	taskeng.exe	50
PID 2400 wrote to memory of 1412	2400	taskeng.exe	51
PID 2400 wrote to memory of 1412	2400	taskeng.exe	51
PID 2400 wrote to memory of 1412	2400	taskeng.exe	51
PID 2400 wrote to memory of 2648	2400	taskeng.exe	52
PID 2400 wrote to memory of 2648	2400	taskeng.exe	52
PID 2400 wrote to memory of 2648	2400	taskeng.exe	52
PID 2400 wrote to memory of 2020	2400	taskeng.exe	53

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\a ton of ya\ya - Copy - Copy - Copy - Copy - Copy - Copy - Copy - Copy - Copy - Copy - Copy - Copy -.exe
"C:\Users\Admin\AppData\Local\Temp\a ton of ya\ya - Copy - Copy - Copy - Copy - Copy - Copy - Copy - Copy - Copy - Copy - Copy - Copy -.exe"
1⤵
- Drops startup file
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2124
- C:\Windows\System32\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "uwumonster" /tr "C:\Users\Admin\AppData\Local\uwumonster.exe"
  2⤵
  - Creates scheduled task(s)
  PID:2916

C:\Windows\system32\taskeng.exe
taskeng.exe {736EA1F5-D7F9-4F6F-9DD7-08567152617F} S-1-5-21-2297530677-1229052932-2803917579-1000:HKULBIBU\Admin:Interactive:[1]
1⤵
- Suspicious use of WriteProcessMemory
PID:2400
- C:\Users\Admin\AppData\Local\uwumonster.exe
  C:\Users\Admin\AppData\Local\uwumonster.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:2548
- C:\Users\Admin\AppData\Local\uwumonster.exe
  C:\Users\Admin\AppData\Local\uwumonster.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:1832
- C:\Users\Admin\AppData\Local\uwumonster.exe
  C:\Users\Admin\AppData\Local\uwumonster.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:2876
- C:\Users\Admin\AppData\Local\uwumonster.exe
  C:\Users\Admin\AppData\Local\uwumonster.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:1476
- C:\Users\Admin\AppData\Local\uwumonster.exe
  C:\Users\Admin\AppData\Local\uwumonster.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:2360
- C:\Users\Admin\AppData\Local\uwumonster.exe
  C:\Users\Admin\AppData\Local\uwumonster.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:2484
- C:\Users\Admin\AppData\Local\uwumonster.exe
  C:\Users\Admin\AppData\Local\uwumonster.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:2644
- C:\Users\Admin\AppData\Local\uwumonster.exe
  C:\Users\Admin\AppData\Local\uwumonster.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:2280
- C:\Users\Admin\AppData\Local\uwumonster.exe
  C:\Users\Admin\AppData\Local\uwumonster.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:2212
- C:\Users\Admin\AppData\Local\uwumonster.exe
  C:\Users\Admin\AppData\Local\uwumonster.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:1916
- C:\Users\Admin\AppData\Local\uwumonster.exe
  C:\Users\Admin\AppData\Local\uwumonster.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:2292
- C:\Users\Admin\AppData\Local\uwumonster.exe
  C:\Users\Admin\AppData\Local\uwumonster.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:2588
- C:\Users\Admin\AppData\Local\uwumonster.exe
  C:\Users\Admin\AppData\Local\uwumonster.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:2680
- C:\Users\Admin\AppData\Local\uwumonster.exe
  C:\Users\Admin\AppData\Local\uwumonster.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:856
- C:\Users\Admin\AppData\Local\uwumonster.exe
  C:\Users\Admin\AppData\Local\uwumonster.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:1976
- C:\Users\Admin\AppData\Local\uwumonster.exe
  C:\Users\Admin\AppData\Local\uwumonster.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:2192
- C:\Users\Admin\AppData\Local\uwumonster.exe
  C:\Users\Admin\AppData\Local\uwumonster.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:1596
- C:\Users\Admin\AppData\Local\uwumonster.exe
  C:\Users\Admin\AppData\Local\uwumonster.exe
  2⤵
  - Executes dropped EXE
  PID:2012
- C:\Users\Admin\AppData\Local\uwumonster.exe
  C:\Users\Admin\AppData\Local\uwumonster.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:1412
- C:\Users\Admin\AppData\Local\uwumonster.exe
  C:\Users\Admin\AppData\Local\uwumonster.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:2648
- C:\Users\Admin\AppData\Local\uwumonster.exe
  C:\Users\Admin\AppData\Local\uwumonster.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:2020
- C:\Users\Admin\AppData\Local\uwumonster.exe
  C:\Users\Admin\AppData\Local\uwumonster.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:2440
- C:\Users\Admin\AppData\Local\uwumonster.exe
  C:\Users\Admin\AppData\Local\uwumonster.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:1872
- C:\Users\Admin\AppData\Local\uwumonster.exe
  C:\Users\Admin\AppData\Local\uwumonster.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:2600
- C:\Users\Admin\AppData\Local\uwumonster.exe
  C:\Users\Admin\AppData\Local\uwumonster.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:2612
- C:\Users\Admin\AppData\Local\uwumonster.exe
  C:\Users\Admin\AppData\Local\uwumonster.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:2736
- C:\Users\Admin\AppData\Local\uwumonster.exe
  C:\Users\Admin\AppData\Local\uwumonster.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:2452
- C:\Users\Admin\AppData\Local\uwumonster.exe
  C:\Users\Admin\AppData\Local\uwumonster.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:1720
- C:\Users\Admin\AppData\Local\uwumonster.exe
  C:\Users\Admin\AppData\Local\uwumonster.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:1192
- C:\Users\Admin\AppData\Local\uwumonster.exe
  C:\Users\Admin\AppData\Local\uwumonster.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:1544

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

T1053

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

T1053

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

T1053

Defense Evasion

Modify Registry

T1112

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\uwumonster.exe

Filesize
63KB

MD5
222c2d239f4c8a1d73c736c9cc712807

SHA1
c3aa61bd6f8cc640bcfa74c40d9283c9c08c7b3c

SHA256
ff43049677c57277f12a1d97f02af3029d7b75b5ad40303a28f1b0452997969d

SHA512
1f2fea85e45e93916306c234b916d6b4b200dac9656e44f4555f825dd8677cb5e927bd5e7a74bf2fb2f6972a3e6e2d294a6104add162ba3d53a0e6cfedef6a02

Download Submit
memory/1412-36-0x0000000000D00000-0x0000000000D16000-memory.dmp

Filesize
88KB

Download
memory/1596-33-0x0000000000390000-0x00000000003A6000-memory.dmp

Filesize
88KB

Download
memory/2020-40-0x00000000009C0000-0x00000000009D6000-memory.dmp

Filesize
88KB

Download
memory/2124-12-0x000007FEF5E60000-0x000007FEF684C000-memory.dmp

Filesize
9.9MB

Download
memory/2124-11-0x000007FEF5E63000-0x000007FEF5E64000-memory.dmp

Filesize
4KB

Download
memory/2124-0-0x000007FEF5E63000-0x000007FEF5E64000-memory.dmp

Filesize
4KB

Download
memory/2124-6-0x000007FEF5E60000-0x000007FEF684C000-memory.dmp

Filesize
9.9MB

Download
memory/2124-1-0x0000000000F60000-0x0000000000F76000-memory.dmp

Filesize
88KB

Download
memory/2192-31-0x0000000000310000-0x0000000000326000-memory.dmp

Filesize
88KB

Download
memory/2292-24-0x0000000001200000-0x0000000001216000-memory.dmp

Filesize
88KB

Download
memory/2440-42-0x0000000001240000-0x0000000001256000-memory.dmp

Filesize
88KB

Download
memory/2548-10-0x0000000001120000-0x0000000001136000-memory.dmp

Filesize
88KB

Download
memory/2588-26-0x00000000013A0000-0x00000000013B6000-memory.dmp

Filesize
88KB

Download
memory/2648-38-0x0000000000170000-0x0000000000186000-memory.dmp

Filesize
88KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads