xworm | c352c942b6df33510094c7100fb9d48e36b8e1e2af40a60ccc360b58721c2390

Analysis

max time kernel
143s
max time network
148s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
06/03/2025, 18:12

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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 12 IoCs

resource	yara_rule
behavioral1/memory/2344-1-0x0000000001070000-0x0000000001086000-memory.dmp	family_xworm
behavioral1/files/0x000d000000012268-8.dat	family_xworm
behavioral1/memory/2672-16-0x0000000001100000-0x0000000001116000-memory.dmp	family_xworm
behavioral1/files/0x0004000000004ed7-20.dat	family_xworm
behavioral1/memory/2440-22-0x0000000000DD0000-0x0000000000DDE000-memory.dmp	family_xworm
behavioral1/memory/2000-39-0x0000000000CB0000-0x0000000000CBE000-memory.dmp	family_xworm
behavioral1/memory/1136-55-0x0000000000F90000-0x0000000000F9E000-memory.dmp	family_xworm
behavioral1/memory/1760-67-0x0000000001370000-0x000000000137E000-memory.dmp	family_xworm
behavioral1/memory/2096-68-0x00000000011A0000-0x00000000011B6000-memory.dmp	family_xworm
behavioral1/files/0x0007000000019551-73.dat	family_xworm
behavioral1/memory/2072-75-0x0000000000BF0000-0x0000000000C1E000-memory.dmp	family_xworm
behavioral1/memory/2760-89-0x0000000001050000-0x000000000107E000-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
1640	powershell.exe
2984	powershell.exe
3004	powershell.exe

Drops startup file 6 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\jzsbvm.lnk	jzsbvm.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\jzsbvm.lnk	jzsbvm.exe
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\gbldib.lnk	gbldib.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\gbldib.lnk	gbldib.exe

Executes dropped EXE 8 IoCs

pid	Process
2672	15415145.exe
2440	jzsbvm.exe
2000	nktanb.exe
1136	vsmlir.exe
2096	15415145.exe
1760	jzsbvm.exe
2072	gbldib.exe
2760	izubln.exe

Adds Run key to start application 2 TTPs 3 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2039016743-699959520-214465309-1000\Software\Microsoft\Windows\CurrentVersion\Run\15415145 = "C:\\Users\\Admin\\AppData\\Roaming\\15415145.exe"	15415145.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2039016743-699959520-214465309-1000\Software\Microsoft\Windows\CurrentVersion\Run\jzsbvm = "C:\\Users\\Admin\\AppData\\Roaming\\jzsbvm.exe"	jzsbvm.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2039016743-699959520-214465309-1000\Software\Microsoft\Windows\CurrentVersion\Run\gbldib = "C:\\Users\\Admin\\AppData\\Roaming\\gbldib.exe"	gbldib.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 3 IoCs

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

persistence execution

Scheduled Task

T1053.005

pid	Process
2340	schtasks.exe
2292	schtasks.exe
2756	schtasks.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
1640	powershell.exe
2984	powershell.exe
3004	powershell.exe

Suspicious use of AdjustPrivilegeToken 15 IoCs

description	pid	Process
Token: SeDebugPrivilege	2344	15415145.exe
Token: SeDebugPrivilege	2344	15415145.exe
Token: SeDebugPrivilege	2672	15415145.exe
Token: SeDebugPrivilege	2440	jzsbvm.exe
Token: SeDebugPrivilege	1640	powershell.exe
Token: SeDebugPrivilege	2000	nktanb.exe
Token: SeDebugPrivilege	2984	powershell.exe
Token: SeDebugPrivilege	3004	powershell.exe
Token: SeDebugPrivilege	1136	vsmlir.exe
Token: SeDebugPrivilege	2440	jzsbvm.exe
Token: SeDebugPrivilege	1760	jzsbvm.exe
Token: SeDebugPrivilege	2096	15415145.exe
Token: SeDebugPrivilege	2072	gbldib.exe
Token: SeDebugPrivilege	2072	gbldib.exe
Token: SeDebugPrivilege	2760	izubln.exe

Suspicious use of WriteProcessMemory 42 IoCs

description	pid	Process	procid_target
PID 2344 wrote to memory of 2340	2344	15415145.exe	31
PID 2344 wrote to memory of 2340	2344	15415145.exe	31
PID 2344 wrote to memory of 2340	2344	15415145.exe	31
PID 2860 wrote to memory of 2672	2860	taskeng.exe	35
PID 2860 wrote to memory of 2672	2860	taskeng.exe	35
PID 2860 wrote to memory of 2672	2860	taskeng.exe	35
PID 2344 wrote to memory of 2440	2344	15415145.exe	36
PID 2344 wrote to memory of 2440	2344	15415145.exe	36
PID 2344 wrote to memory of 2440	2344	15415145.exe	36
PID 2440 wrote to memory of 1640	2440	jzsbvm.exe	37
PID 2440 wrote to memory of 1640	2440	jzsbvm.exe	37
PID 2440 wrote to memory of 1640	2440	jzsbvm.exe	37
PID 2440 wrote to memory of 2984	2440	jzsbvm.exe	39
PID 2440 wrote to memory of 2984	2440	jzsbvm.exe	39
PID 2440 wrote to memory of 2984	2440	jzsbvm.exe	39
PID 2344 wrote to memory of 2000	2344	15415145.exe	41
PID 2344 wrote to memory of 2000	2344	15415145.exe	41
PID 2344 wrote to memory of 2000	2344	15415145.exe	41
PID 2440 wrote to memory of 3004	2440	jzsbvm.exe	42
PID 2440 wrote to memory of 3004	2440	jzsbvm.exe	42
PID 2440 wrote to memory of 3004	2440	jzsbvm.exe	42
PID 2440 wrote to memory of 2292	2440	jzsbvm.exe	44
PID 2440 wrote to memory of 2292	2440	jzsbvm.exe	44
PID 2440 wrote to memory of 2292	2440	jzsbvm.exe	44
PID 2344 wrote to memory of 1136	2344	15415145.exe	46
PID 2344 wrote to memory of 1136	2344	15415145.exe	46
PID 2344 wrote to memory of 1136	2344	15415145.exe	46
PID 2860 wrote to memory of 2096	2860	taskeng.exe	48
PID 2860 wrote to memory of 2096	2860	taskeng.exe	48
PID 2860 wrote to memory of 2096	2860	taskeng.exe	48
PID 2860 wrote to memory of 1760	2860	taskeng.exe	47
PID 2860 wrote to memory of 1760	2860	taskeng.exe	47
PID 2860 wrote to memory of 1760	2860	taskeng.exe	47
PID 2344 wrote to memory of 2072	2344	15415145.exe	49
PID 2344 wrote to memory of 2072	2344	15415145.exe	49
PID 2344 wrote to memory of 2072	2344	15415145.exe	49
PID 2072 wrote to memory of 2756	2072	gbldib.exe	50
PID 2072 wrote to memory of 2756	2072	gbldib.exe	50
PID 2072 wrote to memory of 2756	2072	gbldib.exe	50
PID 2344 wrote to memory of 2760	2344	15415145.exe	52
PID 2344 wrote to memory of 2760	2344	15415145.exe	52
PID 2344 wrote to memory of 2760	2344	15415145.exe	52

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:2344
- 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:2340
- C:\Users\Admin\AppData\Local\Temp\jzsbvm.exe
  "C:\Users\Admin\AppData\Local\Temp\jzsbvm.exe"
  2⤵
  - Drops startup file
  - Executes dropped EXE
  - Adds Run key to start application
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2440
- - 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\jzsbvm.exe'
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:1640
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'jzsbvm.exe'
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:2984
- - 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\jzsbvm.exe'
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:3004
- - C:\Windows\System32\schtasks.exe
    "C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "jzsbvm" /tr "C:\Users\Admin\AppData\Roaming\jzsbvm.exe"
    3⤵
    - Scheduled Task/Job: Scheduled Task
    PID:2292
- C:\Users\Admin\AppData\Local\Temp\nktanb.exe
  "C:\Users\Admin\AppData\Local\Temp\nktanb.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:2000
- C:\Users\Admin\AppData\Local\Temp\vsmlir.exe
  "C:\Users\Admin\AppData\Local\Temp\vsmlir.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:1136
- C:\Users\Admin\AppData\Local\Temp\gbldib.exe
  "C:\Users\Admin\AppData\Local\Temp\gbldib.exe"
  2⤵
  - Drops startup file
  - Executes dropped EXE
  - Adds Run key to start application
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2072
- - C:\Windows\System32\schtasks.exe
    "C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "gbldib" /tr "C:\Users\Admin\AppData\Roaming\gbldib.exe"
    3⤵
    - Scheduled Task/Job: Scheduled Task
    PID:2756
- C:\Users\Admin\AppData\Local\Temp\izubln.exe
  "C:\Users\Admin\AppData\Local\Temp\izubln.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:2760

C:\Windows\system32\taskeng.exe
taskeng.exe {8E1CF512-920F-4339-ABBC-C9BAEC17DEF3} S-1-5-21-2039016743-699959520-214465309-1000:PIDEURYY\Admin:Interactive:[1]
1⤵
- Suspicious use of WriteProcessMemory
PID:2860
- C:\Users\Admin\AppData\Roaming\15415145.exe
  C:\Users\Admin\AppData\Roaming\15415145.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:2672
- C:\Users\Admin\AppData\Roaming\jzsbvm.exe
  C:\Users\Admin\AppData\Roaming\jzsbvm.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:1760
- C:\Users\Admin\AppData\Roaming\15415145.exe
  C:\Users\Admin\AppData\Roaming\15415145.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:2096

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

Replay Monitor

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Downloads

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

Filesize
159KB

MD5
49a6b6e8627762b929999b0b1fe6d604

SHA1
4a47bbb17c6cbda79794428df97d203b7261af79

SHA256
ca6aa52d419303376de2c37b4c8f6bdd41e31e55de6d178520ad5056303b6571

SHA512
c967dcb9be6b1fa73f1ef50a7785c17919365857be63923c6cad53362931d9a1c9fb41a43d68a050ad2a50239580fc8294e61e2ba10ee19d185f4f91c035b85b

Download Submit
C:\Users\Admin\AppData\Local\Temp\jzsbvm.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\XA51BQRFNY5MKHKG3I8J.temp

Filesize
7KB

MD5
2cecb776d0946f15b9b646bbd15a32d2

SHA1
e153572ea5734e77699a7d220f0583c3e8ed12d5

SHA256
d541bfb3a728021adbc8c516efaabbb7738bbf99b6d6a55e8a7e35e06d81b3f1

SHA512
7c883924c3d2d9f1fb4f743e537a6fc3246466dd875d6fa486eb5e2dce54ad708229fda0c5e6d779b233ff253bc9b9369e75bc0a15738f5e30a297d3fac41d0f

Download Submit
memory/1136-55-0x0000000000F90000-0x0000000000F9E000-memory.dmp

Filesize
56KB

Download
memory/1640-29-0x0000000001DA0000-0x0000000001DA8000-memory.dmp

Filesize
32KB

Download
memory/1640-28-0x000000001B6D0000-0x000000001B9B2000-memory.dmp

Filesize
2.9MB

Download
memory/1760-67-0x0000000001370000-0x000000000137E000-memory.dmp

Filesize
56KB

Download
memory/2000-39-0x0000000000CB0000-0x0000000000CBE000-memory.dmp

Filesize
56KB

Download
memory/2072-75-0x0000000000BF0000-0x0000000000C1E000-memory.dmp

Filesize
184KB

Download
memory/2096-68-0x00000000011A0000-0x00000000011B6000-memory.dmp

Filesize
88KB

Download
memory/2344-10-0x000007FEF5AB0000-0x000007FEF649C000-memory.dmp

Filesize
9.9MB

Download
memory/2344-11-0x000007FEF5AB3000-0x000007FEF5AB4000-memory.dmp

Filesize
4KB

Download
memory/2344-12-0x000007FEF5AB0000-0x000007FEF649C000-memory.dmp

Filesize
9.9MB

Download
memory/2344-0-0x000007FEF5AB3000-0x000007FEF5AB4000-memory.dmp

Filesize
4KB

Download
memory/2344-1-0x0000000001070000-0x0000000001086000-memory.dmp

Filesize
88KB

Download
memory/2440-22-0x0000000000DD0000-0x0000000000DDE000-memory.dmp

Filesize
56KB

Download
memory/2672-16-0x0000000001100000-0x0000000001116000-memory.dmp

Filesize
88KB

Download
memory/2760-89-0x0000000001050000-0x000000000107E000-memory.dmp

Filesize
184KB

Download
memory/2984-40-0x000000001B590000-0x000000001B872000-memory.dmp

Filesize
2.9MB

Download
memory/2984-41-0x0000000002250000-0x0000000002258000-memory.dmp

Filesize
32KB

Download