f0fbd0654d4bf299c08f1f83e7b6c3a1f332b49c24b3cf0b9b87757b8c13f093

General

Target

f0fbd0654d4bf299c08f1f83e7b6c3a1f332b49c24b3cf0b9b87757b8c13f093.bin.sample.exe
Size

1.8MB
MD5

10d7151b9ee53b8da8ee6f85001ffb20
SHA1

76d33ef58ea7b012342d975d871db64840da9675
SHA256

f0fbd0654d4bf299c08f1f83e7b6c3a1f332b49c24b3cf0b9b87757b8c13f093
SHA512

1c6d2d7f509b462b5d48db61817ee42a7204d10141c59394eb190d0dba733b831a6344bb85197dfac358939379e640c9f38732d376e28f92e187806ca574d10f

Score

9^/10

persistence ransomware

Malware Config

Signatures

Deletes shadow copies 2 TTPs
Ransomware often targets backup files to inhibit system recovery.
ransomware

File Deletion
T1107

Inhibit System Recovery
T1490
Grants admin privileges 1 TTPs
Uses net.exe to modify the user's privileges.

Account Manipulation
T1098

Modifies extensions of user files 6 IoCs

Ransomware generally changes the extension on encrypted files.

ransomware

description	ioc	Process
File created	C:\Users\Admin\Pictures\RepairFind.png.REDROMAN	f0fbd0654d4bf299c08f1f83e7b6c3a1f332b49c24b3cf0b9b87757b8c13f093.bin.sample.exe
File created	C:\Users\Admin\Pictures\RenameApprove.crw.REDROMAN	f0fbd0654d4bf299c08f1f83e7b6c3a1f332b49c24b3cf0b9b87757b8c13f093.bin.sample.exe
File opened for modification	C:\Users\Admin\Pictures\DenyClose.tiff	f0fbd0654d4bf299c08f1f83e7b6c3a1f332b49c24b3cf0b9b87757b8c13f093.bin.sample.exe
File created	C:\Users\Admin\Pictures\DenyClose.tiff.REDROMAN	f0fbd0654d4bf299c08f1f83e7b6c3a1f332b49c24b3cf0b9b87757b8c13f093.bin.sample.exe
File created	C:\Users\Admin\Pictures\ExportInvoke.crw.REDROMAN	f0fbd0654d4bf299c08f1f83e7b6c3a1f332b49c24b3cf0b9b87757b8c13f093.bin.sample.exe
File created	C:\Users\Admin\Pictures\SkipUnpublish.tif.REDROMAN	f0fbd0654d4bf299c08f1f83e7b6c3a1f332b49c24b3cf0b9b87757b8c13f093.bin.sample.exe

Drops startup file 1 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\OPENTHIS.html	f0fbd0654d4bf299c08f1f83e7b6c3a1f332b49c24b3cf0b9b87757b8c13f093.bin.sample.exe

Modifies service 2 TTPs 5 IoCs

persistence

Modify Registry

T1112

Modify Existing Service

T1031

description	ioc	Process
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\VSS\Diag\SwProvider_{b5946137-7b9f-4925-af80-51abd60b20d5}	vssvc.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\VSS\Diag\Registry Writer	vssvc.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\VSS\Diag\COM+ REGDB Writer	vssvc.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\VSS\Diag\ASR Writer	vssvc.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\VSS\Diag\Shadow Copy Optimization Writer	vssvc.exe

Interacts with shadow copies 2 TTPs 2 IoCs

Shadow copies are often targeted by ransomware to inhibit system recovery.

ransomware

File Deletion

T1107

Inhibit System Recovery

T1490

pid	Process
4596	vssadmin.exe
4360	vssadmin.exe

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-3341490333-719741536-2920803124-1000_Classes\Local Settings	powershell.exe

Runs net.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
1364	powershell.exe
1364	powershell.exe
1364	powershell.exe
184	powershell.exe
184	powershell.exe
184	powershell.exe

Suspicious use of AdjustPrivilegeToken 5 IoCs

description	pid	Process
Token: SeDebugPrivilege	1364	powershell.exe
Token: SeDebugPrivilege	184	powershell.exe
Token: SeBackupPrivilege	4496	vssvc.exe
Token: SeRestorePrivilege	4496	vssvc.exe
Token: SeAuditPrivilege	4496	vssvc.exe

Suspicious use of WriteProcessMemory 18 IoCs

description	pid	Process	procid_target
PID 1160 wrote to memory of 1364	1160	f0fbd0654d4bf299c08f1f83e7b6c3a1f332b49c24b3cf0b9b87757b8c13f093.bin.sample.exe	70
PID 1160 wrote to memory of 1364	1160	f0fbd0654d4bf299c08f1f83e7b6c3a1f332b49c24b3cf0b9b87757b8c13f093.bin.sample.exe	70
PID 1160 wrote to memory of 184	1160	f0fbd0654d4bf299c08f1f83e7b6c3a1f332b49c24b3cf0b9b87757b8c13f093.bin.sample.exe	78
PID 1160 wrote to memory of 184	1160	f0fbd0654d4bf299c08f1f83e7b6c3a1f332b49c24b3cf0b9b87757b8c13f093.bin.sample.exe	78
PID 184 wrote to memory of 3492	184	powershell.exe	80
PID 184 wrote to memory of 3492	184	powershell.exe	80
PID 3492 wrote to memory of 4360	3492	cmd.exe	82
PID 3492 wrote to memory of 4360	3492	cmd.exe	82
PID 3492 wrote to memory of 4596	3492	cmd.exe	86
PID 3492 wrote to memory of 4596	3492	cmd.exe	86
PID 3492 wrote to memory of 4628	3492	cmd.exe	87
PID 3492 wrote to memory of 4628	3492	cmd.exe	87
PID 4628 wrote to memory of 4648	4628	net.exe	88
PID 4628 wrote to memory of 4648	4628	net.exe	88
PID 3492 wrote to memory of 4672	3492	cmd.exe	89
PID 3492 wrote to memory of 4672	3492	cmd.exe	89
PID 4672 wrote to memory of 4692	4672	net.exe	90
PID 4672 wrote to memory of 4692	4672	net.exe	90

C:\Users\Admin\AppData\Local\Temp\f0fbd0654d4bf299c08f1f83e7b6c3a1f332b49c24b3cf0b9b87757b8c13f093.bin.sample.exe
"C:\Users\Admin\AppData\Local\Temp\f0fbd0654d4bf299c08f1f83e7b6c3a1f332b49c24b3cf0b9b87757b8c13f093.bin.sample.exe"
1⤵
- Modifies extensions of user files
- Drops startup file
- Suspicious use of WriteProcessMemory
PID:1160
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "powershell" -WindowStyle Hidden get-wmiobject win32_computersystem | "fl model"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1364
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "powershell" Start-Process C:\ProgramData\amdkey.bat -Verb runas
  2⤵
  - Modifies registry class
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:184
- - C:\Windows\System32\cmd.exe
    "C:\Windows\System32\cmd.exe" /C "C:\ProgramData\amdkey.bat"
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:3492
  - - C:\Windows\system32\vssadmin.exe
      vssadmin.exe Delete Shadows /All /Quiet
      4⤵
      Interacts with shadow copies
      PID:4360
  - - C:\Windows\system32\vssadmin.exe
      vssadmin.exe Resize ShadowStorage /For=C: /On=C: /MaxSize=320MB
      4⤵
      Interacts with shadow copies
      PID:4596
  - - C:\Windows\system32\net.exe
      net user /add RedROMAN p4zzaub71h
      4⤵
      Suspicious use of WriteProcessMemory
      PID:4628
    - - C:\Windows\system32\net1.exe
        
        C:\Windows\system32\net1 user /add RedROMAN p4zzaub71h
        5⤵
        
        PID:4648
  - - C:\Windows\system32\net.exe
      net localgroup administrators RedROMAN /add
      4⤵
      Suspicious use of WriteProcessMemory
      PID:4672
    - - C:\Windows\system32\net1.exe
        
        C:\Windows\system32\net1 localgroup administrators RedROMAN /add
        5⤵
        
        PID:4692

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Modifies service
- Suspicious use of AdjustPrivilegeToken
PID:4496

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Account Manipulation

1

T1098

Modify Existing Service

1

T1031

Privilege Escalation

Defense Evasion

File Deletion

Modify Registry

Credential Access

Account Manipulation

1

T1098

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Inhibit System Recovery

2

T1490

Replay Monitor

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Downloads

memory/184-7-0x00007FFE21970000-0x00007FFE2235C000-memory.dmp

Filesize
9.9MB

Download
memory/1160-0-0x00007FF6A06A0000-0x00007FF6A0871000-memory.dmp

Filesize
1.8MB

Download
memory/1364-4-0x000001DA7B280000-0x000001DA7B281000-memory.dmp

Filesize
4KB

Download
memory/1364-3-0x000001DA7B0D0000-0x000001DA7B0D1000-memory.dmp

Filesize
4KB

Download
memory/1364-2-0x00007FFE21970000-0x00007FFE2235C000-memory.dmp

Filesize
9.9MB

Download

Resubmissions

Analysis

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