xworm | 0e2ec9b0d60ba6bfc32a86dce7ed5e60d67fb142d4d14bb4a11956fe8b19d7d9

General

Target

XCli1ent.exe
Size

36KB
MD5

3d8ec94b7dcfaf52bb472918378b49a3
SHA1

f868a911a25973f330ec2b56e50a746e6f32b14d
SHA256

0e2ec9b0d60ba6bfc32a86dce7ed5e60d67fb142d4d14bb4a11956fe8b19d7d9
SHA512

a57ac00fdc6377469d3a95bdc2715e68ca408aecf8b7e46444f401f8d93e787a5c1485886109f833b9771d07e9866610e808ba756167f55eef13750ff81f59d7
SSDEEP

768:DeVXtHcDQZS9rc50UZmx/F89RF6OOMh6QJP:D8dH+o51OF89RF6OOMQy

Score

10^/10

xworm execution rat trojan

Malware Config

Extracted

Family

xworm

Version

5.0

C2

database-victoria.gl.at.ply.gg:55358

Mutex

eIDPhmFNz0rAKYvF

Attributes

install_file
USB.exe

aes.plain

Signatures

Detect Xworm Payload 1 IoCs

resource	yara_rule
behavioral2/memory/3492-1-0x00000000000F0000-0x0000000000100000-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 2 IoCs

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

execution

PowerShell

T1059.001

pid	Process
1052	powershell.exe
32	powershell.exe

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-1-5-21-1874072718-2205492803-118941907-1000\Control Panel\International\Geo\Nation	XCli1ent.exe

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 5 IoCs

pid	Process
1052	powershell.exe
1052	powershell.exe
32	powershell.exe
32	powershell.exe
3492	XCli1ent.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	3492	XCli1ent.exe
Token: SeDebugPrivilege	1052	powershell.exe
Token: SeDebugPrivilege	32	powershell.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
3492	XCli1ent.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 3492 wrote to memory of 1052	3492	XCli1ent.exe	92
PID 3492 wrote to memory of 1052	3492	XCli1ent.exe	92
PID 3492 wrote to memory of 32	3492	XCli1ent.exe	96
PID 3492 wrote to memory of 32	3492	XCli1ent.exe	96

C:\Users\Admin\AppData\Local\Temp\XCli1ent.exe
"C:\Users\Admin\AppData\Local\Temp\XCli1ent.exe"
1⤵
- Checks computer location settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3492
- 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\XCli1ent.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1052
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'XCli1ent.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:32

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

PowerShell

1

T1059.001

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

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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
6d42b6da621e8df5674e26b799c8e2aa

SHA1
ab3ce1327ea1eeedb987ec823d5e0cb146bafa48

SHA256
5ab6a1726f425c6d0158f55eb8d81754ddedd51e651aa0a899a29b7a58619c4c

SHA512
53faffbda8a835bc1143e894c118c15901a5fd09cfc2224dd2f754c06dc794897315049a579b9a8382d4564f071576045aaaf824019b7139d939152dca38ce29

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_bdzansfj.mst.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/1052-7-0x00000175FF4D0000-0x00000175FF4F2000-memory.dmp

Filesize
136KB

Download
memory/1052-12-0x00007FFF24240000-0x00007FFF24D01000-memory.dmp

Filesize
10.8MB

Download
memory/1052-13-0x00007FFF24240000-0x00007FFF24D01000-memory.dmp

Filesize
10.8MB

Download
memory/1052-14-0x00007FFF24240000-0x00007FFF24D01000-memory.dmp

Filesize
10.8MB

Download
memory/1052-17-0x00007FFF24240000-0x00007FFF24D01000-memory.dmp

Filesize
10.8MB

Download
memory/3492-0-0x00007FFF24243000-0x00007FFF24245000-memory.dmp

Filesize
8KB

Download
memory/3492-1-0x00000000000F0000-0x0000000000100000-memory.dmp

Filesize
64KB

Download
memory/3492-30-0x00007FFF24240000-0x00007FFF24D01000-memory.dmp

Filesize
10.8MB

Download
memory/3492-31-0x00007FFF24240000-0x00007FFF24D01000-memory.dmp

Filesize
10.8MB

Download

Analysis

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