xworm | 585d1fb4f288974b683c5abfb10c97d7d2ae3f59c2bcfd78ba272e3be2cd7815

Analysis

max time kernel
147s
max time network
147s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
11-01-2024 11:35

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General

Target

msfiler.exe
Size

419KB
MD5

8a716466aa6f2d425ec09770626e8e54
SHA1

62fb757ea5098651331f91c1664db9fe46b21879
SHA256

585d1fb4f288974b683c5abfb10c97d7d2ae3f59c2bcfd78ba272e3be2cd7815
SHA512

54f11067e400347834689b4532ae53b00ec96a3ca90a2c21de27942f4ca30306fdda0522c1a3a4cde047ad650162e2d8313205220acaab4cc60e010965690940
SSDEEP

6144:QTCsE3O4yuS5O0RBOInaCa6G6ypdf4Bf7e/DnjBeq04fVXOUvE0CGsSE9BLM:2E3O5uOO0mInnGZCTS84fZLtw

Score

10^/10

xworm rat trojan

Malware Config

Extracted

Family

xworm

Version

5.0

5.182.87.154:7000

Mutex

VMFidhoqn75fm5lJ

Attributes

Install_directory
%Temp%
install_file
mdnsresp.exe

aes.plain

Signatures

Detect Xworm Payload 1 IoCs

resource	yara_rule
behavioral2/memory/4792-10-0x0000000000400000-0x0000000000410000-memory.dmp	family_xworm

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

Checks computer location settings 2 TTPs 2 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-3791175113-1062217823-1177695025-1000\Control Panel\International\Geo\Nation	msfiler.exe
Key value queried	\REGISTRY\USER\S-1-5-21-3791175113-1062217823-1177695025-1000\Control Panel\International\Geo\Nation	msfiler.exe

Drops startup file 2 IoCs

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

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4824 set thread context of 4792	4824	msfiler.exe	93

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 13 IoCs

pid	Process
4824	msfiler.exe
4824	msfiler.exe
1068	powershell.exe
1068	powershell.exe
2916	powershell.exe
2916	powershell.exe
3596	powershell.exe
3596	powershell.exe
4976	powershell.exe
4976	powershell.exe
4400	powershell.exe
4400	powershell.exe
4792	msfiler.exe

Suspicious use of AdjustPrivilegeToken 7 IoCs

description	pid	Process
Token: SeDebugPrivilege	4824	msfiler.exe
Token: SeDebugPrivilege	4792	msfiler.exe
Token: SeDebugPrivilege	1068	powershell.exe
Token: SeDebugPrivilege	2916	powershell.exe
Token: SeDebugPrivilege	3596	powershell.exe
Token: SeDebugPrivilege	4976	powershell.exe
Token: SeDebugPrivilege	4400	powershell.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4792	msfiler.exe

Suspicious use of WriteProcessMemory 26 IoCs

description	pid	Process	procid_target
PID 4824 wrote to memory of 1068	4824	msfiler.exe	91
PID 4824 wrote to memory of 1068	4824	msfiler.exe	91
PID 4824 wrote to memory of 1068	4824	msfiler.exe	91
PID 4824 wrote to memory of 3200	4824	msfiler.exe	94
PID 4824 wrote to memory of 3200	4824	msfiler.exe	94
PID 4824 wrote to memory of 3200	4824	msfiler.exe	94
PID 4824 wrote to memory of 4792	4824	msfiler.exe	93
PID 4824 wrote to memory of 4792	4824	msfiler.exe	93
PID 4824 wrote to memory of 4792	4824	msfiler.exe	93
PID 4824 wrote to memory of 4792	4824	msfiler.exe	93
PID 4824 wrote to memory of 4792	4824	msfiler.exe	93
PID 4824 wrote to memory of 4792	4824	msfiler.exe	93
PID 4824 wrote to memory of 4792	4824	msfiler.exe	93
PID 4824 wrote to memory of 4792	4824	msfiler.exe	93
PID 4792 wrote to memory of 2916	4792	msfiler.exe	96
PID 4792 wrote to memory of 2916	4792	msfiler.exe	96
PID 4792 wrote to memory of 2916	4792	msfiler.exe	96
PID 4792 wrote to memory of 3596	4792	msfiler.exe	98
PID 4792 wrote to memory of 3596	4792	msfiler.exe	98
PID 4792 wrote to memory of 3596	4792	msfiler.exe	98
PID 4792 wrote to memory of 4976	4792	msfiler.exe	100
PID 4792 wrote to memory of 4976	4792	msfiler.exe	100
PID 4792 wrote to memory of 4976	4792	msfiler.exe	100
PID 4792 wrote to memory of 4400	4792	msfiler.exe	101
PID 4792 wrote to memory of 4400	4792	msfiler.exe	101
PID 4792 wrote to memory of 4400	4792	msfiler.exe	101

C:\Users\Admin\AppData\Local\Temp\msfiler.exe
"C:\Users\Admin\AppData\Local\Temp\msfiler.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4824
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -enc QQBkAGQALQBNAHAAUAByAGUAZgBlAHIAZQBuAGMAZQAgAC0ARQB4AGMAbAB1AHMAaQBvAG4AUABhAHQAaAAgAEMAOgBcAFUAcwBlAHIAcwBcAEEAZABtAGkAbgBcAEEAcABwAEQAYQB0AGEAXABMAG8AYwBhAGwAXABUAGUAbQBwAFwAbQBzAGYAaQBsAGUAcgAuAGUAeABlADsAIABBAGQAZAAtAE0AcABQAHIAZQBmAGUAcgBlAG4AYwBlACAALQBFAHgAYwBsAHUAcwBpAG8AbgBQAHIAbwBjAGUAcwBzACAAbQBzAGYAaQBsAGUAcgAuAGUAeABlADsA
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1068
- C:\Users\Admin\AppData\Local\Temp\msfiler.exe
  C:\Users\Admin\AppData\Local\Temp\msfiler.exe
  2⤵
  - Checks computer location settings
  - Drops startup file
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:4792
- - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\msfiler.exe'
    3⤵
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:2916
- - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'msfiler.exe'
    3⤵
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:3596
- - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\mdnsresp.exe'
    3⤵
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:4976
- - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'mdnsresp.exe'
    3⤵
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:4400
- C:\Users\Admin\AppData\Local\Temp\msfiler.exe
  C:\Users\Admin\AppData\Local\Temp\msfiler.exe
  2⤵
  PID:3200

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

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

memory/1068-57-0x00000000072E0000-0x00000000072F4000-memory.dmp

Filesize
80KB

Download
memory/1068-59-0x00000000073C0000-0x00000000073C8000-memory.dmp

Filesize
32KB

Download
memory/1068-22-0x00000000056B0000-0x0000000005716000-memory.dmp

Filesize
408KB

Download
memory/1068-21-0x0000000005640000-0x00000000056A6000-memory.dmp

Filesize
408KB

Download
memory/1068-19-0x0000000004E40000-0x0000000004E62000-memory.dmp

Filesize
136KB

Download
memory/1068-17-0x00000000747D0000-0x0000000074F80000-memory.dmp

Filesize
7.7MB

Download
memory/1068-20-0x00000000048A0000-0x00000000048B0000-memory.dmp

Filesize
64KB

Download
memory/1068-62-0x00000000747D0000-0x0000000074F80000-memory.dmp

Filesize
7.7MB

Download
memory/1068-56-0x00000000072D0000-0x00000000072DE000-memory.dmp

Filesize
56KB

Download
memory/1068-51-0x00000000076E0000-0x0000000007D5A000-memory.dmp

Filesize
6.5MB

Download
memory/1068-16-0x0000000004EE0000-0x0000000005508000-memory.dmp

Filesize
6.2MB

Download
memory/1068-32-0x0000000005860000-0x0000000005BB4000-memory.dmp

Filesize
3.3MB

Download
memory/1068-18-0x00000000048A0000-0x00000000048B0000-memory.dmp

Filesize
64KB

Download
memory/1068-54-0x0000000007320000-0x00000000073B6000-memory.dmp

Filesize
600KB

Download
memory/1068-33-0x0000000005D70000-0x0000000005D8E000-memory.dmp

Filesize
120KB

Download
memory/1068-34-0x0000000005DB0000-0x0000000005DFC000-memory.dmp

Filesize
304KB

Download
memory/1068-35-0x000000007F5D0000-0x000000007F5E0000-memory.dmp

Filesize
64KB

Download
memory/1068-36-0x0000000006F40000-0x0000000006F72000-memory.dmp

Filesize
200KB

Download
memory/1068-12-0x0000000004770000-0x00000000047A6000-memory.dmp

Filesize
216KB

Download
memory/1068-55-0x00000000072A0000-0x00000000072B1000-memory.dmp

Filesize
68KB

Download
memory/1068-37-0x00000000705D0000-0x000000007061C000-memory.dmp

Filesize
304KB

Download
memory/1068-50-0x0000000006F80000-0x0000000007023000-memory.dmp

Filesize
652KB

Download
memory/1068-49-0x00000000048A0000-0x00000000048B0000-memory.dmp

Filesize
64KB

Download
memory/1068-48-0x00000000048A0000-0x00000000048B0000-memory.dmp

Filesize
64KB

Download
memory/1068-52-0x00000000070A0000-0x00000000070BA000-memory.dmp

Filesize
104KB

Download
memory/1068-58-0x00000000073E0000-0x00000000073FA000-memory.dmp

Filesize
104KB

Download
memory/1068-53-0x0000000007110000-0x000000000711A000-memory.dmp

Filesize
40KB

Download
memory/1068-47-0x0000000006340000-0x000000000635E000-memory.dmp

Filesize
120KB

Download
memory/2916-80-0x000000006FE20000-0x000000006FE6C000-memory.dmp

Filesize
304KB

Download
memory/2916-79-0x000000007F760000-0x000000007F770000-memory.dmp

Filesize
64KB

Download
memory/2916-91-0x00000000026F0000-0x0000000002700000-memory.dmp

Filesize
64KB

Download
memory/2916-90-0x0000000007200000-0x00000000072A3000-memory.dmp

Filesize
652KB

Download
memory/2916-64-0x00000000747D0000-0x0000000074F80000-memory.dmp

Filesize
7.7MB

Download
memory/2916-65-0x00000000026F0000-0x0000000002700000-memory.dmp

Filesize
64KB

Download
memory/2916-92-0x0000000007530000-0x0000000007541000-memory.dmp

Filesize
68KB

Download
memory/2916-93-0x0000000007580000-0x0000000007594000-memory.dmp

Filesize
80KB

Download
memory/2916-95-0x00000000747D0000-0x0000000074F80000-memory.dmp

Filesize
7.7MB

Download
memory/2916-66-0x00000000026F0000-0x0000000002700000-memory.dmp

Filesize
64KB

Download
memory/2916-72-0x0000000005950000-0x0000000005CA4000-memory.dmp

Filesize
3.3MB

Download
memory/2916-78-0x0000000006030000-0x000000000607C000-memory.dmp

Filesize
304KB

Download
memory/3596-98-0x00000000023F0000-0x0000000002400000-memory.dmp

Filesize
64KB

Download
memory/3596-96-0x00000000747D0000-0x0000000074F80000-memory.dmp

Filesize
7.7MB

Download
memory/3596-123-0x00000000747D0000-0x0000000074F80000-memory.dmp

Filesize
7.7MB

Download
memory/3596-109-0x000000007F500000-0x000000007F510000-memory.dmp

Filesize
64KB

Download
memory/3596-121-0x00000000023F0000-0x0000000002400000-memory.dmp

Filesize
64KB

Download
memory/3596-110-0x000000006FE20000-0x000000006FE6C000-memory.dmp

Filesize
304KB

Download
memory/3596-97-0x00000000023F0000-0x0000000002400000-memory.dmp

Filesize
64KB

Download
memory/4792-10-0x0000000000400000-0x0000000000410000-memory.dmp

Filesize
64KB

Download
memory/4792-13-0x00000000747D0000-0x0000000074F80000-memory.dmp

Filesize
7.7MB

Download
memory/4792-15-0x00000000057C0000-0x000000000585C000-memory.dmp

Filesize
624KB

Download
memory/4792-120-0x00000000747D0000-0x0000000074F80000-memory.dmp

Filesize
7.7MB

Download
memory/4824-3-0x0000000004F90000-0x0000000005022000-memory.dmp

Filesize
584KB

Download
memory/4824-9-0x00000000052D0000-0x000000000531C000-memory.dmp

Filesize
304KB

Download
memory/4824-2-0x0000000005660000-0x0000000005C04000-memory.dmp

Filesize
5.6MB

Download
memory/4824-1-0x0000000000530000-0x00000000005A0000-memory.dmp

Filesize
448KB

Download
memory/4824-4-0x0000000005150000-0x0000000005160000-memory.dmp

Filesize
64KB

Download
memory/4824-6-0x0000000005040000-0x0000000005088000-memory.dmp

Filesize
288KB

Download
memory/4824-8-0x00000000052A0000-0x00000000052D0000-memory.dmp

Filesize
192KB

Download
memory/4824-0-0x00000000747D0000-0x0000000074F80000-memory.dmp

Filesize
7.7MB

Download
memory/4824-7-0x0000000005120000-0x0000000005150000-memory.dmp

Filesize
192KB

Download
memory/4824-14-0x00000000747D0000-0x0000000074F80000-memory.dmp

Filesize
7.7MB

Download
memory/4824-5-0x0000000005030000-0x000000000503A000-memory.dmp

Filesize
40KB

Download
memory/4976-126-0x0000000005200000-0x0000000005210000-memory.dmp

Filesize
64KB

Download
memory/4976-124-0x00000000747D0000-0x0000000074F80000-memory.dmp

Filesize
7.7MB

Download
memory/4976-125-0x0000000005200000-0x0000000005210000-memory.dmp

Filesize
64KB

Download