xworm | c352c942b6df33510094c7100fb9d48e36b8e1e2af40a60ccc360b58721c2390

Analysis

max time kernel
136s
max time network
148s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
06/03/2025, 18:10

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General

Target

15415145.exe
Size

59KB
MD5

6c091ad6fae0fa76f44870d1a1b05cb4
SHA1

040f60c0ee3f4902f919025057e34ab4d11b1abd
SHA256

c352c942b6df33510094c7100fb9d48e36b8e1e2af40a60ccc360b58721c2390
SHA512

3a414f40f99e5847d9631c4ac1143c76e77db7ae42dd8c7aed2ebf1742ec73bb802d54d6cbde3b04f6b894a4cf731aa4e9dbad95166bade13f787b489d8e8d86
SSDEEP

1536:skyZtyUQ8sBkROLW+UzbTH3gfm2qt0OgSko7:skItfQ8sBkROUzbTQf+6OgK7

Score

10^/10

xworm execution persistence rat trojan

Malware Config

Extracted

Family

xworm

Version

3.1

known-savage.gl.at.ply.gg:45116

association-lectures.gl.at.ply.gg:32463

Attributes

Install_directory
%AppData%
install_file
USB.exe

aes.plain

Signatures

Detect Xworm Payload 8 IoCs

resource	yara_rule
behavioral2/memory/3012-1-0x0000000000D70000-0x0000000000D86000-memory.dmp	family_xworm
behavioral2/files/0x000a000000019438-8.dat	family_xworm
behavioral2/memory/2020-16-0x0000000000CD0000-0x0000000000CE6000-memory.dmp	family_xworm
behavioral2/memory/2236-19-0x00000000003B0000-0x00000000003C6000-memory.dmp	family_xworm
behavioral2/files/0x00060000000194ae-23.dat	family_xworm
behavioral2/memory/1564-25-0x0000000000AC0000-0x0000000000ACE000-memory.dmp	family_xworm
behavioral2/memory/844-44-0x0000000000110000-0x000000000011E000-memory.dmp	family_xworm
behavioral2/memory/764-59-0x0000000000B10000-0x0000000000B1E000-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 3 IoCs

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

execution

PowerShell

T1059.001

pid	Process
2588	powershell.exe
1372	powershell.exe
1952	powershell.exe

Drops startup file 4 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\15415145.lnk	15415145.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\15415145.lnk	15415145.exe
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\lxffbw.lnk	lxffbw.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\lxffbw.lnk	lxffbw.exe

Executes dropped EXE 5 IoCs

pid	Process
2020	15415145.exe
2236	15415145.exe
1564	lxffbw.exe
844	lzwazm.exe
764	lioclx.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-1846800975-3917212583-2893086201-1000\Software\Microsoft\Windows\CurrentVersion\Run\15415145 = "C:\\Users\\Admin\\AppData\\Roaming\\15415145.exe"	15415145.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1846800975-3917212583-2893086201-1000\Software\Microsoft\Windows\CurrentVersion\Run\lxffbw = "C:\\Users\\Admin\\AppData\\Roaming\\lxffbw.exe"	lxffbw.exe

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 2 IoCs

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

persistence execution

Scheduled Task

T1053.005

pid	Process
2308	schtasks.exe
2400	schtasks.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
2588	powershell.exe
1372	powershell.exe
1952	powershell.exe

Suspicious use of AdjustPrivilegeToken 11 IoCs

description	pid	Process
Token: SeDebugPrivilege	3012	15415145.exe
Token: SeDebugPrivilege	3012	15415145.exe
Token: SeDebugPrivilege	2020	15415145.exe
Token: SeDebugPrivilege	2236	15415145.exe
Token: SeDebugPrivilege	1564	lxffbw.exe
Token: SeDebugPrivilege	2588	powershell.exe
Token: SeDebugPrivilege	1372	powershell.exe
Token: SeDebugPrivilege	844	lzwazm.exe
Token: SeDebugPrivilege	1952	powershell.exe
Token: SeDebugPrivilege	764	lioclx.exe
Token: SeDebugPrivilege	1564	lxffbw.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 3012 wrote to memory of 2400	3012	15415145.exe	30
PID 3012 wrote to memory of 2400	3012	15415145.exe	30
PID 3012 wrote to memory of 2400	3012	15415145.exe	30
PID 2456 wrote to memory of 2020	2456	taskeng.exe	35
PID 2456 wrote to memory of 2020	2456	taskeng.exe	35
PID 2456 wrote to memory of 2020	2456	taskeng.exe	35
PID 2456 wrote to memory of 2236	2456	taskeng.exe	36
PID 2456 wrote to memory of 2236	2456	taskeng.exe	36
PID 2456 wrote to memory of 2236	2456	taskeng.exe	36
PID 3012 wrote to memory of 1564	3012	15415145.exe	37
PID 3012 wrote to memory of 1564	3012	15415145.exe	37
PID 3012 wrote to memory of 1564	3012	15415145.exe	37
PID 1564 wrote to memory of 2588	1564	lxffbw.exe	38
PID 1564 wrote to memory of 2588	1564	lxffbw.exe	38
PID 1564 wrote to memory of 2588	1564	lxffbw.exe	38
PID 1564 wrote to memory of 1372	1564	lxffbw.exe	40
PID 1564 wrote to memory of 1372	1564	lxffbw.exe	40
PID 1564 wrote to memory of 1372	1564	lxffbw.exe	40
PID 3012 wrote to memory of 844	3012	15415145.exe	42
PID 3012 wrote to memory of 844	3012	15415145.exe	42
PID 3012 wrote to memory of 844	3012	15415145.exe	42
PID 1564 wrote to memory of 1952	1564	lxffbw.exe	43
PID 1564 wrote to memory of 1952	1564	lxffbw.exe	43
PID 1564 wrote to memory of 1952	1564	lxffbw.exe	43
PID 1564 wrote to memory of 2308	1564	lxffbw.exe	45
PID 1564 wrote to memory of 2308	1564	lxffbw.exe	45
PID 1564 wrote to memory of 2308	1564	lxffbw.exe	45
PID 3012 wrote to memory of 764	3012	15415145.exe	47
PID 3012 wrote to memory of 764	3012	15415145.exe	47
PID 3012 wrote to memory of 764	3012	15415145.exe	47

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\15415145.exe
"C:\Users\Admin\AppData\Local\Temp\15415145.exe"
1⤵
- Drops startup file
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3012
- C:\Windows\System32\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "15415145" /tr "C:\Users\Admin\AppData\Roaming\15415145.exe"
  2⤵
  - Scheduled Task/Job: Scheduled Task
  PID:2400
- C:\Users\Admin\AppData\Local\Temp\lxffbw.exe
  "C:\Users\Admin\AppData\Local\Temp\lxffbw.exe"
  2⤵
  - Drops startup file
  - Executes dropped EXE
  - Adds Run key to start application
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1564
- - 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\lxffbw.exe'
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:2588
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'lxffbw.exe'
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:1372
- - 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\Roaming\lxffbw.exe'
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:1952
- - C:\Windows\System32\schtasks.exe
    "C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "lxffbw" /tr "C:\Users\Admin\AppData\Roaming\lxffbw.exe"
    3⤵
    - Scheduled Task/Job: Scheduled Task
    PID:2308
- C:\Users\Admin\AppData\Local\Temp\lzwazm.exe
  "C:\Users\Admin\AppData\Local\Temp\lzwazm.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:844
- C:\Users\Admin\AppData\Local\Temp\lioclx.exe
  "C:\Users\Admin\AppData\Local\Temp\lioclx.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:764

C:\Windows\system32\taskeng.exe
taskeng.exe {67BC4922-78C6-4DBF-B813-8F79D7EF5438} S-1-5-21-1846800975-3917212583-2893086201-1000:ZQABOPWE\Admin:Interactive:[1]
1⤵
- Suspicious use of WriteProcessMemory
PID:2456
- C:\Users\Admin\AppData\Roaming\15415145.exe
  C:\Users\Admin\AppData\Roaming\15415145.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:2020
- C:\Users\Admin\AppData\Roaming\15415145.exe
  C:\Users\Admin\AppData\Roaming\15415145.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:2236

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

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\lxffbw.exe

Filesize
34KB

MD5
950d739da650457fab6a225545794238

SHA1
e965286161ecda1b8c0072d8a2d80c191bb15705

SHA256
a571fcac5384158c4927e7c7cf07182b68eccf67845ba927beae44cd9835e3f8

SHA512
b7b91343176c5a7f6408b21fbc96c23d0b02c080b846e29f304ba91de1d0f37a772953e7ab65d1d627cb3490fbef3b85681564e878d8dcda57c0897dbad1d19b

Download Submit
C:\Users\Admin\AppData\Roaming\15415145.exe

Filesize
59KB

MD5
6c091ad6fae0fa76f44870d1a1b05cb4

SHA1
040f60c0ee3f4902f919025057e34ab4d11b1abd

SHA256
c352c942b6df33510094c7100fb9d48e36b8e1e2af40a60ccc360b58721c2390

SHA512
3a414f40f99e5847d9631c4ac1143c76e77db7ae42dd8c7aed2ebf1742ec73bb802d54d6cbde3b04f6b894a4cf731aa4e9dbad95166bade13f787b489d8e8d86

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

Filesize
7KB

MD5
bcd4b348eccf82b63c345fc6be05f8a5

SHA1
c48124c728d8623151ed02a7ce9625c48e89a4f1

SHA256
82fffc5ce7df56f901aaa14362e3da9060aa4b715ad387d9b476ffb6e4943816

SHA512
cf27f760336a3c975d0e895ad2d461c5cec6d3293c2306de9310cf528149b9d843c083d9463b188a8724b609f09c96c3893ed962b06c066b0051749244f92efa

Download Submit
memory/764-59-0x0000000000B10000-0x0000000000B1E000-memory.dmp

Filesize
56KB

Download
memory/844-44-0x0000000000110000-0x000000000011E000-memory.dmp

Filesize
56KB

Download
memory/1372-39-0x00000000022D0000-0x00000000022D8000-memory.dmp

Filesize
32KB

Download
memory/1372-38-0x000000001B640000-0x000000001B922000-memory.dmp

Filesize
2.9MB

Download
memory/1564-25-0x0000000000AC0000-0x0000000000ACE000-memory.dmp

Filesize
56KB

Download
memory/2020-16-0x0000000000CD0000-0x0000000000CE6000-memory.dmp

Filesize
88KB

Download
memory/2236-19-0x00000000003B0000-0x00000000003C6000-memory.dmp

Filesize
88KB

Download
memory/2588-31-0x000000001B6E0000-0x000000001B9C2000-memory.dmp

Filesize
2.9MB

Download
memory/2588-32-0x0000000001D80000-0x0000000001D88000-memory.dmp

Filesize
32KB

Download
memory/3012-1-0x0000000000D70000-0x0000000000D86000-memory.dmp

Filesize
88KB

Download
memory/3012-0-0x000007FEF5833000-0x000007FEF5834000-memory.dmp

Filesize
4KB

Download
memory/3012-10-0x000007FEF5830000-0x000007FEF621C000-memory.dmp

Filesize
9.9MB

Download
memory/3012-12-0x000007FEF5830000-0x000007FEF621C000-memory.dmp

Filesize
9.9MB

Download
memory/3012-11-0x000007FEF5833000-0x000007FEF5834000-memory.dmp

Filesize
4KB

Download