xworm | b9cae0739fc6daee051551b3e1dfabd39db41c2996f3a905254a71def555ba36

Analysis

max time kernel
147s
max time network
151s
platform
windows7_x64
resource
win7-20250207-en
resource tags

arch:x64arch:x86image:win7-20250207-enlocale:en-usos:windows7-x64system
submitted
22/03/2025, 06:25

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General

Target

5f6bf8650715fe3f914b7e24cf572b85fd753d68054c98c36360b67bfa518add.exe
Size

626KB
MD5

b675f5607efc77d45aac893264dd601c
SHA1

6d6d0a2f7bc9d1df99275894d9e455d70da689d1
SHA256

5f6bf8650715fe3f914b7e24cf572b85fd753d68054c98c36360b67bfa518add
SHA512

5e74b0c975173351c0c9b4cd49283adfd57e38b768dcbf03f82d30c5f9c1ada0b6e70b97d26a6787bd15f43ae802d5b2f4394123bf4445378a7351dd335b5211
SSDEEP

12288:wTAALVma8Vk2WbYq5qL7Lp4SKpRUzfBI4xa7iKX:mVma72z9KY7BID7iK

Score

10^/10

xworm execution persistence rat trojan

Malware Config

Extracted

Family

xworm

https://pastebin.com/raw/DfF7GpwD:123456789

Attributes

Install_directory
%LocalAppData%
install_file
svchost.exe
pastebin_url
https://pastebin.com/raw/DfF7GpwD

Signatures

Detect Xworm Payload 4 IoCs

resource	yara_rule
behavioral7/memory/1280-1-0x0000000000920000-0x00000000009C2000-memory.dmp	family_xworm
behavioral7/files/0x000b000000015fe6-33.dat	family_xworm
behavioral7/memory/576-35-0x0000000000C60000-0x0000000000D02000-memory.dmp	family_xworm
behavioral7/memory/2788-40-0x0000000001220000-0x00000000012C2000-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 4 IoCs

Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

execution

PowerShell

T1059.001

pid	Process
2508	powershell.exe
2792	powershell.exe
2924	powershell.exe
2996	powershell.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\svchost.lnk	5f6bf8650715fe3f914b7e24cf572b85fd753d68054c98c36360b67bfa518add.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\svchost.lnk	5f6bf8650715fe3f914b7e24cf572b85fd753d68054c98c36360b67bfa518add.exe

Executes dropped EXE 3 IoCs

pid	Process
576	svchost.exe
2788	svchost.exe
788	svchost.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-1-5-21-677481364-2238709445-1347953534-1000\Software\Microsoft\Windows\CurrentVersion\Run\svchost = "C:\\Users\\Admin\\AppData\\Local\\svchost.exe"	5f6bf8650715fe3f914b7e24cf572b85fd753d68054c98c36360b67bfa518add.exe

Legitimate hosting services abused for malware hosting/C2 1 TTPs 42 IoCs

Web Service

T1102

flow	ioc
7	pastebin.com
9	pastebin.com
13	pastebin.com
14	pastebin.com
40	pastebin.com
10	pastebin.com
18	pastebin.com
23	pastebin.com
30	pastebin.com
31	pastebin.com
32	pastebin.com
33	pastebin.com
42	pastebin.com
22	pastebin.com
24	pastebin.com
26	pastebin.com
27	pastebin.com
34	pastebin.com
37	pastebin.com
11	pastebin.com
16	pastebin.com
21	pastebin.com
39	pastebin.com
41	pastebin.com
43	pastebin.com
5	pastebin.com
20	pastebin.com
25	pastebin.com
29	pastebin.com
36	pastebin.com
45	pastebin.com
4	pastebin.com
8	pastebin.com
17	pastebin.com
19	pastebin.com
44	pastebin.com
12	pastebin.com
15	pastebin.com
38	pastebin.com
6	pastebin.com
28	pastebin.com
35	pastebin.com

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

System Information Discovery
T1082

Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

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

persistence execution

Scheduled Task

T1053.005

pid	Process
2764	schtasks.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
2508	powershell.exe
2792	powershell.exe
2924	powershell.exe
2996	powershell.exe

Suspicious use of AdjustPrivilegeToken 8 IoCs

description	pid	Process
Token: SeDebugPrivilege	1280	5f6bf8650715fe3f914b7e24cf572b85fd753d68054c98c36360b67bfa518add.exe
Token: SeDebugPrivilege	2508	powershell.exe
Token: SeDebugPrivilege	2792	powershell.exe
Token: SeDebugPrivilege	2924	powershell.exe
Token: SeDebugPrivilege	2996	powershell.exe
Token: SeDebugPrivilege	576	svchost.exe
Token: SeDebugPrivilege	2788	svchost.exe
Token: SeDebugPrivilege	788	svchost.exe

Suspicious use of WriteProcessMemory 24 IoCs

description	pid	Process	procid_target
PID 1280 wrote to memory of 2508	1280	5f6bf8650715fe3f914b7e24cf572b85fd753d68054c98c36360b67bfa518add.exe	31
PID 1280 wrote to memory of 2508	1280	5f6bf8650715fe3f914b7e24cf572b85fd753d68054c98c36360b67bfa518add.exe	31
PID 1280 wrote to memory of 2508	1280	5f6bf8650715fe3f914b7e24cf572b85fd753d68054c98c36360b67bfa518add.exe	31
PID 1280 wrote to memory of 2792	1280	5f6bf8650715fe3f914b7e24cf572b85fd753d68054c98c36360b67bfa518add.exe	33
PID 1280 wrote to memory of 2792	1280	5f6bf8650715fe3f914b7e24cf572b85fd753d68054c98c36360b67bfa518add.exe	33
PID 1280 wrote to memory of 2792	1280	5f6bf8650715fe3f914b7e24cf572b85fd753d68054c98c36360b67bfa518add.exe	33
PID 1280 wrote to memory of 2924	1280	5f6bf8650715fe3f914b7e24cf572b85fd753d68054c98c36360b67bfa518add.exe	35
PID 1280 wrote to memory of 2924	1280	5f6bf8650715fe3f914b7e24cf572b85fd753d68054c98c36360b67bfa518add.exe	35
PID 1280 wrote to memory of 2924	1280	5f6bf8650715fe3f914b7e24cf572b85fd753d68054c98c36360b67bfa518add.exe	35
PID 1280 wrote to memory of 2996	1280	5f6bf8650715fe3f914b7e24cf572b85fd753d68054c98c36360b67bfa518add.exe	37
PID 1280 wrote to memory of 2996	1280	5f6bf8650715fe3f914b7e24cf572b85fd753d68054c98c36360b67bfa518add.exe	37
PID 1280 wrote to memory of 2996	1280	5f6bf8650715fe3f914b7e24cf572b85fd753d68054c98c36360b67bfa518add.exe	37
PID 1280 wrote to memory of 2764	1280	5f6bf8650715fe3f914b7e24cf572b85fd753d68054c98c36360b67bfa518add.exe	39
PID 1280 wrote to memory of 2764	1280	5f6bf8650715fe3f914b7e24cf572b85fd753d68054c98c36360b67bfa518add.exe	39
PID 1280 wrote to memory of 2764	1280	5f6bf8650715fe3f914b7e24cf572b85fd753d68054c98c36360b67bfa518add.exe	39
PID 1936 wrote to memory of 576	1936	taskeng.exe	42
PID 1936 wrote to memory of 576	1936	taskeng.exe	42
PID 1936 wrote to memory of 576	1936	taskeng.exe	42
PID 1936 wrote to memory of 2788	1936	taskeng.exe	43
PID 1936 wrote to memory of 2788	1936	taskeng.exe	43
PID 1936 wrote to memory of 2788	1936	taskeng.exe	43
PID 1936 wrote to memory of 788	1936	taskeng.exe	44
PID 1936 wrote to memory of 788	1936	taskeng.exe	44
PID 1936 wrote to memory of 788	1936	taskeng.exe	44

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\5f6bf8650715fe3f914b7e24cf572b85fd753d68054c98c36360b67bfa518add.exe
"C:\Users\Admin\AppData\Local\Temp\5f6bf8650715fe3f914b7e24cf572b85fd753d68054c98c36360b67bfa518add.exe"
1⤵
- Drops startup file
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1280
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\5f6bf8650715fe3f914b7e24cf572b85fd753d68054c98c36360b67bfa518add.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2508
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess '5f6bf8650715fe3f914b7e24cf572b85fd753d68054c98c36360b67bfa518add.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2792
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\svchost.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2924
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'svchost.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2996
- C:\Windows\System32\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "svchost" /tr "C:\Users\Admin\AppData\Local\svchost.exe"
  2⤵
  - Scheduled Task/Job: Scheduled Task
  PID:2764

C:\Windows\system32\taskeng.exe
taskeng.exe {7D8052DB-DC1E-4C76-A5DB-4450095A1968} S-1-5-21-677481364-2238709445-1347953534-1000:JXXXDSWS\Admin:Interactive:[1]
1⤵
- Suspicious use of WriteProcessMemory
PID:1936
- C:\Users\Admin\AppData\Local\svchost.exe
  C:\Users\Admin\AppData\Local\svchost.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:576
- C:\Users\Admin\AppData\Local\svchost.exe
  C:\Users\Admin\AppData\Local\svchost.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:2788
- C:\Users\Admin\AppData\Local\svchost.exe
  C:\Users\Admin\AppData\Local\svchost.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:788

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Web Service

T1102

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\svchost.exe

Filesize
626KB

MD5
b675f5607efc77d45aac893264dd601c

SHA1
6d6d0a2f7bc9d1df99275894d9e455d70da689d1

SHA256
5f6bf8650715fe3f914b7e24cf572b85fd753d68054c98c36360b67bfa518add

SHA512
5e74b0c975173351c0c9b4cd49283adfd57e38b768dcbf03f82d30c5f9c1ada0b6e70b97d26a6787bd15f43ae802d5b2f4394123bf4445378a7351dd335b5211

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\590aee7bdd69b59b.customDestinations-ms

Filesize
7KB

MD5
e52a0cd1da3111a02e9103896b3c2442

SHA1
30be9c6cae842725d220a78b67cb0e523de714dc

SHA256
25871f7c981dba3c06e927c3ee4367bd40df2d8ee964b860e4299f16388fae7b

SHA512
2ea4fcc0ff002516919738bc00e94e63f697cf2bdbb56a0c48470680e0348ccb2a158153ed28be989cfe8f1aa674780af353bcbce553358a3c723abd57272130

Download Submit
memory/576-35-0x0000000000C60000-0x0000000000D02000-memory.dmp

Filesize
648KB

Download
memory/1280-31-0x000000001B610000-0x000000001B690000-memory.dmp

Filesize
512KB

Download
memory/1280-1-0x0000000000920000-0x00000000009C2000-memory.dmp

Filesize
648KB

Download
memory/1280-37-0x000000001B610000-0x000000001B690000-memory.dmp

Filesize
512KB

Download
memory/1280-0-0x000007FEF5F43000-0x000007FEF5F44000-memory.dmp

Filesize
4KB

Download
memory/1280-36-0x000007FEF5F43000-0x000007FEF5F44000-memory.dmp

Filesize
4KB

Download
memory/2508-7-0x000000001B7B0000-0x000000001BA92000-memory.dmp

Filesize
2.9MB

Download
memory/2508-8-0x0000000001EF0000-0x0000000001EF8000-memory.dmp

Filesize
32KB

Download
memory/2508-6-0x0000000001F00000-0x0000000001F80000-memory.dmp

Filesize
512KB

Download
memory/2788-40-0x0000000001220000-0x00000000012C2000-memory.dmp

Filesize
648KB

Download
memory/2792-15-0x0000000001E00000-0x0000000001E08000-memory.dmp

Filesize
32KB

Download
memory/2792-14-0x000000001B720000-0x000000001BA02000-memory.dmp

Filesize
2.9MB

Download