xworm | df501e6c611c658df919bbe959e54b1080da39511a7de35ab3b5146e32584728

General

Target

0x0006000000022e58-20.exe
Size

38KB
MD5

390e5361e31cbc929e847ac6eb52fc83
SHA1

dbe0142f900ca40b01756f65f6059a073e776c37
SHA256

df501e6c611c658df919bbe959e54b1080da39511a7de35ab3b5146e32584728
SHA512

da8c785cf64c6d4ebfe6b4610ff51fccf5276dcfb87a5e7c4ba5dfe3ad1637ad1fc2ebff48073e5a948c2ac54dfbd97c7e60810942be80e1686a53fd892674d9
SSDEEP

768:ouTCWuUSucWKwJwqv2QHF89EP6dOMhg4d:ouTspTw/2MF89EP6dOMWm

Score

10^/10

xworm rat trojan

Malware Config

Extracted

Family

xworm

Version

5.0

C2

5.182.87.154:7000

Mutex

Tb9D0Kzf4g8Fpa6f

Attributes

Install_directory
%AppData%
install_file
MShelper.exe

aes.plain

Signatures

Detect Xworm Payload 1 IoCs

resource	yara_rule
behavioral2/memory/4264-0-0x0000000000680000-0x0000000000690000-memory.dmp	family_xworm

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

Checks computer location settings 2 TTPs 1 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-1-5-21-3125601242-331447593-1512828465-1000\Control Panel\International\Geo\Nation	0x0006000000022e58-20.exe

Drops startup file 2 IoCs

description	ioc	Process
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\MShelper.lnk	0x0006000000022e58-20.exe
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\MShelper.lnk	0x0006000000022e58-20.exe

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 9 IoCs

pid	Process
4680	powershell.exe
4680	powershell.exe
1692	powershell.exe
1692	powershell.exe
1360	powershell.exe
1360	powershell.exe
4956	powershell.exe
4956	powershell.exe
4264	0x0006000000022e58-20.exe

Suspicious use of AdjustPrivilegeToken 5 IoCs

description	pid	Process
Token: SeDebugPrivilege	4264	0x0006000000022e58-20.exe
Token: SeDebugPrivilege	4680	powershell.exe
Token: SeDebugPrivilege	1692	powershell.exe
Token: SeDebugPrivilege	1360	powershell.exe
Token: SeDebugPrivilege	4956	powershell.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4264	0x0006000000022e58-20.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 4264 wrote to memory of 4680	4264	0x0006000000022e58-20.exe	86
PID 4264 wrote to memory of 4680	4264	0x0006000000022e58-20.exe	86
PID 4264 wrote to memory of 1692	4264	0x0006000000022e58-20.exe	88
PID 4264 wrote to memory of 1692	4264	0x0006000000022e58-20.exe	88
PID 4264 wrote to memory of 1360	4264	0x0006000000022e58-20.exe	91
PID 4264 wrote to memory of 1360	4264	0x0006000000022e58-20.exe	91
PID 4264 wrote to memory of 4956	4264	0x0006000000022e58-20.exe	94
PID 4264 wrote to memory of 4956	4264	0x0006000000022e58-20.exe	94

C:\Users\Admin\AppData\Local\Temp\0x0006000000022e58-20.exe
"C:\Users\Admin\AppData\Local\Temp\0x0006000000022e58-20.exe"
1⤵
- Checks computer location settings
- Drops startup file
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4264
- 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\0x0006000000022e58-20.exe'
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4680
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess '0x0006000000022e58-20.exe'
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1692
- 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\MShelper.exe'
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1360
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'MShelper.exe'
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4956

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\powershell.exe.log

Filesize
2KB

MD5
d85ba6ff808d9e5444a4b369f5bc2730

SHA1
31aa9d96590fff6981b315e0b391b575e4c0804a

SHA256
84739c608a73509419748e4e20e6cc4e1846056c3fe1929a8300d5a1a488202f

SHA512
8c414eb55b45212af385accc16d9d562adba2123583ce70d22b91161fe878683845512a78f04dedd4ea98ed9b174dbfa98cf696370598ad8e6fbd1e714f1f249

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

Filesize
944B

MD5
cadef9abd087803c630df65264a6c81c

SHA1
babbf3636c347c8727c35f3eef2ee643dbcc4bd2

SHA256
cce65b73cdfe9304bcd5207913e8b60fb69faa20cd3b684f2b0343b755b99438

SHA512
7278aa87124abb382d9024a645e881e7b7cf1b84e8894943b36e018dbf0399e6858392f77980b599fa5488e2e21bf757a0702fe6419417edac93b68e0c2ec085

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

Filesize
944B

MD5
a9293ef980c925abe33d940554ed8575

SHA1
9b6d85f2595f7fd4923f52b21ab7607279066969

SHA256
8313a191aa9d11cce868d95ac9a9b1609275bfe93131fcb6e547b985b0242fbe

SHA512
2003d90bb2bc89378ccaeb9c5edf76b2dfd93c80369d063e56141abb8d7fea6acee6a103874ab227bc1548437269c8e4ee5174bf482ecf3d66c38f3e0ba35d85

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

Filesize
944B

MD5
a9293ef980c925abe33d940554ed8575

SHA1
9b6d85f2595f7fd4923f52b21ab7607279066969

SHA256
8313a191aa9d11cce868d95ac9a9b1609275bfe93131fcb6e547b985b0242fbe

SHA512
2003d90bb2bc89378ccaeb9c5edf76b2dfd93c80369d063e56141abb8d7fea6acee6a103874ab227bc1548437269c8e4ee5174bf482ecf3d66c38f3e0ba35d85

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_0xocnzn4.uqr.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/1360-39-0x00000221E99E0000-0x00000221E99F0000-memory.dmp

Filesize
64KB

Download
memory/1360-51-0x00000221E99E0000-0x00000221E99F0000-memory.dmp

Filesize
64KB

Download
memory/1360-49-0x00000221E99E0000-0x00000221E99F0000-memory.dmp

Filesize
64KB

Download
memory/1360-52-0x00000221E99E0000-0x00000221E99F0000-memory.dmp

Filesize
64KB

Download
memory/1360-54-0x00007FFCF11B0000-0x00007FFCF1C71000-memory.dmp

Filesize
10.8MB

Download
memory/1360-38-0x00007FFCF11B0000-0x00007FFCF1C71000-memory.dmp

Filesize
10.8MB

Download
memory/1692-37-0x00007FFCF11B0000-0x00007FFCF1C71000-memory.dmp

Filesize
10.8MB

Download
memory/1692-21-0x0000025F73F00000-0x0000025F73F10000-memory.dmp

Filesize
64KB

Download
memory/1692-20-0x00007FFCF11B0000-0x00007FFCF1C71000-memory.dmp

Filesize
10.8MB

Download
memory/1692-22-0x0000025F73F00000-0x0000025F73F10000-memory.dmp

Filesize
64KB

Download
memory/1692-33-0x0000025F73F00000-0x0000025F73F10000-memory.dmp

Filesize
64KB

Download
memory/1692-35-0x0000025F73F00000-0x0000025F73F10000-memory.dmp

Filesize
64KB

Download
memory/4264-34-0x00007FFCF11B0000-0x00007FFCF1C71000-memory.dmp

Filesize
10.8MB

Download
memory/4264-0-0x0000000000680000-0x0000000000690000-memory.dmp

Filesize
64KB

Download
memory/4264-76-0x000000001B490000-0x000000001B4A0000-memory.dmp

Filesize
64KB

Download
memory/4264-75-0x000000001B490000-0x000000001B4A0000-memory.dmp

Filesize
64KB

Download
memory/4264-1-0x00007FFCF11B0000-0x00007FFCF1C71000-memory.dmp

Filesize
10.8MB

Download
memory/4680-2-0x000001B36C690000-0x000001B36C6B2000-memory.dmp

Filesize
136KB

Download
memory/4680-9-0x00007FFCF11B0000-0x00007FFCF1C71000-memory.dmp

Filesize
10.8MB

Download
memory/4680-13-0x000001B36CC50000-0x000001B36CC60000-memory.dmp

Filesize
64KB

Download
memory/4680-14-0x000001B36CC50000-0x000001B36CC60000-memory.dmp

Filesize
64KB

Download
memory/4680-15-0x000001B36CC50000-0x000001B36CC60000-memory.dmp

Filesize
64KB

Download
memory/4680-18-0x00007FFCF11B0000-0x00007FFCF1C71000-memory.dmp

Filesize
10.8MB

Download
memory/4956-55-0x00007FFCF11B0000-0x00007FFCF1C71000-memory.dmp

Filesize
10.8MB

Download
memory/4956-65-0x000001FA31B00000-0x000001FA31B10000-memory.dmp

Filesize
64KB

Download
memory/4956-66-0x000001FA31B00000-0x000001FA31B10000-memory.dmp

Filesize
64KB

Download
memory/4956-68-0x000001FA31B00000-0x000001FA31B10000-memory.dmp

Filesize
64KB

Download
memory/4956-70-0x00007FFCF11B0000-0x00007FFCF1C71000-memory.dmp

Filesize
10.8MB

Download

Analysis

Sharing