Malware Analysis Report

2024-10-16 03:23

Sample ID 210323-5p826armje
Target military.exe
SHA256 1deb1efad2c469198aabbb618285e2229052273cf654ee5925c2540ded224402
Tags
babuk ransomware
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V6

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

1deb1efad2c469198aabbb618285e2229052273cf654ee5925c2540ded224402

Threat Level: Known bad

The file military.exe was found to be: Known bad.

Malicious Activity Summary

babuk ransomware

Babuk Locker

Deletes shadow copies

Modifies extensions of user files

Enumerates connected drives

Enumerates physical storage devices

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

Interacts with shadow copies

Suspicious behavior: EnumeratesProcesses

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2021-03-23 04:23

Signatures

N/A

Analysis: behavioral1

Detonation Overview

Submitted

2021-03-23 04:23

Reported

2021-03-23 04:25

Platform

win7v20201028

Max time kernel

17s

Max time network

16s

Command Line

"C:\Users\Admin\AppData\Local\Temp\military.exe"

Signatures

Babuk Locker

ransomware babuk

Deletes shadow copies

ransomware

Enumerates connected drives

Description Indicator Process Target
File opened (read-only) \??\J: C:\Users\Admin\AppData\Local\Temp\military.exe N/A
File opened (read-only) \??\K: C:\Users\Admin\AppData\Local\Temp\military.exe N/A
File opened (read-only) \??\L: C:\Users\Admin\AppData\Local\Temp\military.exe N/A
File opened (read-only) \??\Z: C:\Users\Admin\AppData\Local\Temp\military.exe N/A
File opened (read-only) \??\U: C:\Users\Admin\AppData\Local\Temp\military.exe N/A
File opened (read-only) \??\I: C:\Users\Admin\AppData\Local\Temp\military.exe N/A
File opened (read-only) \??\O: C:\Users\Admin\AppData\Local\Temp\military.exe N/A
File opened (read-only) \??\F: C:\Users\Admin\AppData\Local\Temp\military.exe N/A
File opened (read-only) \??\R: C:\Users\Admin\AppData\Local\Temp\military.exe N/A
File opened (read-only) \??\T: C:\Users\Admin\AppData\Local\Temp\military.exe N/A
File opened (read-only) \??\X: C:\Users\Admin\AppData\Local\Temp\military.exe N/A
File opened (read-only) \??\B: C:\Users\Admin\AppData\Local\Temp\military.exe N/A
File opened (read-only) \??\Q: C:\Users\Admin\AppData\Local\Temp\military.exe N/A
File opened (read-only) \??\E: C:\Users\Admin\AppData\Local\Temp\military.exe N/A
File opened (read-only) \??\A: C:\Users\Admin\AppData\Local\Temp\military.exe N/A
File opened (read-only) \??\G: C:\Users\Admin\AppData\Local\Temp\military.exe N/A
File opened (read-only) \??\H: C:\Users\Admin\AppData\Local\Temp\military.exe N/A
File opened (read-only) \??\V: C:\Users\Admin\AppData\Local\Temp\military.exe N/A
File opened (read-only) \??\N: C:\Users\Admin\AppData\Local\Temp\military.exe N/A
File opened (read-only) \??\M: C:\Users\Admin\AppData\Local\Temp\military.exe N/A
File opened (read-only) \??\W: C:\Users\Admin\AppData\Local\Temp\military.exe N/A
File opened (read-only) \??\Y: C:\Users\Admin\AppData\Local\Temp\military.exe N/A
File opened (read-only) \??\P: C:\Users\Admin\AppData\Local\Temp\military.exe N/A
File opened (read-only) \??\S: C:\Users\Admin\AppData\Local\Temp\military.exe N/A

Enumerates physical storage devices

Interacts with shadow copies

ransomware
Description Indicator Process Target
N/A N/A C:\Windows\system32\vssadmin.exe N/A
N/A N/A C:\Windows\system32\vssadmin.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\military.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeBackupPrivilege N/A C:\Windows\system32\vssvc.exe N/A
Token: SeRestorePrivilege N/A C:\Windows\system32\vssvc.exe N/A
Token: SeAuditPrivilege N/A C:\Windows\system32\vssvc.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1932 wrote to memory of 1972 N/A C:\Users\Admin\AppData\Local\Temp\military.exe C:\Windows\System32\cmd.exe
PID 1932 wrote to memory of 1972 N/A C:\Users\Admin\AppData\Local\Temp\military.exe C:\Windows\System32\cmd.exe
PID 1932 wrote to memory of 1972 N/A C:\Users\Admin\AppData\Local\Temp\military.exe C:\Windows\System32\cmd.exe
PID 1932 wrote to memory of 1972 N/A C:\Users\Admin\AppData\Local\Temp\military.exe C:\Windows\System32\cmd.exe
PID 1972 wrote to memory of 1436 N/A C:\Windows\System32\cmd.exe C:\Windows\system32\vssadmin.exe
PID 1972 wrote to memory of 1436 N/A C:\Windows\System32\cmd.exe C:\Windows\system32\vssadmin.exe
PID 1972 wrote to memory of 1436 N/A C:\Windows\System32\cmd.exe C:\Windows\system32\vssadmin.exe
PID 1932 wrote to memory of 2012 N/A C:\Users\Admin\AppData\Local\Temp\military.exe C:\Windows\System32\cmd.exe
PID 1932 wrote to memory of 2012 N/A C:\Users\Admin\AppData\Local\Temp\military.exe C:\Windows\System32\cmd.exe
PID 1932 wrote to memory of 2012 N/A C:\Users\Admin\AppData\Local\Temp\military.exe C:\Windows\System32\cmd.exe
PID 1932 wrote to memory of 2012 N/A C:\Users\Admin\AppData\Local\Temp\military.exe C:\Windows\System32\cmd.exe
PID 2012 wrote to memory of 1664 N/A C:\Windows\System32\cmd.exe C:\Windows\system32\vssadmin.exe
PID 2012 wrote to memory of 1664 N/A C:\Windows\System32\cmd.exe C:\Windows\system32\vssadmin.exe
PID 2012 wrote to memory of 1664 N/A C:\Windows\System32\cmd.exe C:\Windows\system32\vssadmin.exe

Processes

C:\Users\Admin\AppData\Local\Temp\military.exe

"C:\Users\Admin\AppData\Local\Temp\military.exe"

C:\Windows\System32\cmd.exe

"C:\Windows\System32\cmd.exe" /c vssadmin.exe delete shadows /all /quiet

C:\Windows\system32\vssadmin.exe

vssadmin.exe delete shadows /all /quiet

C:\Windows\system32\vssvc.exe

C:\Windows\system32\vssvc.exe

C:\Windows\System32\cmd.exe

"C:\Windows\System32\cmd.exe" /c vssadmin.exe delete shadows /all /quiet

C:\Windows\system32\vssadmin.exe

vssadmin.exe delete shadows /all /quiet

Network

N/A

Files

memory/1932-2-0x00000000750C1000-0x00000000750C3000-memory.dmp

memory/1932-4-0x0000000002270000-0x0000000002281000-memory.dmp

memory/1932-3-0x0000000001E60000-0x0000000001E71000-memory.dmp

memory/1972-5-0x0000000000000000-mapping.dmp

memory/1436-6-0x0000000000000000-mapping.dmp

memory/2012-7-0x0000000000000000-mapping.dmp

memory/1664-8-0x0000000000000000-mapping.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2021-03-23 04:23

Reported

2021-03-23 04:25

Platform

win10v20201028

Max time kernel

40s

Max time network

112s

Command Line

"C:\Users\Admin\AppData\Local\Temp\military.exe"

Signatures

Babuk Locker

ransomware babuk

Deletes shadow copies

ransomware

Modifies extensions of user files

ransomware
Description Indicator Process Target
File renamed C:\Users\Admin\Pictures\LimitConvert.tiff => C:\Users\Admin\Pictures\LimitConvert.tiff.babyk C:\Users\Admin\AppData\Local\Temp\military.exe N/A
File renamed C:\Users\Admin\Pictures\ResolveWatch.png => C:\Users\Admin\Pictures\ResolveWatch.png.babyk C:\Users\Admin\AppData\Local\Temp\military.exe N/A
File opened for modification C:\Users\Admin\Pictures\ResolveWatch.png.babyk C:\Users\Admin\AppData\Local\Temp\military.exe N/A
File opened for modification C:\Users\Admin\Pictures\UpdateWatch.tiff C:\Users\Admin\AppData\Local\Temp\military.exe N/A
File opened for modification C:\Users\Admin\Pictures\InstallUnlock.tiff.babyk C:\Users\Admin\AppData\Local\Temp\military.exe N/A
File opened for modification C:\Users\Admin\Pictures\LimitConvert.tiff C:\Users\Admin\AppData\Local\Temp\military.exe N/A
File opened for modification C:\Users\Admin\Pictures\LimitConvert.tiff.babyk C:\Users\Admin\AppData\Local\Temp\military.exe N/A
File renamed C:\Users\Admin\Pictures\SyncOptimize.tiff => C:\Users\Admin\Pictures\SyncOptimize.tiff.babyk C:\Users\Admin\AppData\Local\Temp\military.exe N/A
File opened for modification C:\Users\Admin\Pictures\TestUndo.crw.babyk C:\Users\Admin\AppData\Local\Temp\military.exe N/A
File renamed C:\Users\Admin\Pictures\StepInitialize.crw => C:\Users\Admin\Pictures\StepInitialize.crw.babyk C:\Users\Admin\AppData\Local\Temp\military.exe N/A
File opened for modification C:\Users\Admin\Pictures\SyncOptimize.tiff C:\Users\Admin\AppData\Local\Temp\military.exe N/A
File opened for modification C:\Users\Admin\Pictures\SyncOptimize.tiff.babyk C:\Users\Admin\AppData\Local\Temp\military.exe N/A
File opened for modification C:\Users\Admin\Pictures\UnblockResume.png.babyk C:\Users\Admin\AppData\Local\Temp\military.exe N/A
File opened for modification C:\Users\Admin\Pictures\UnblockWrite.png.babyk C:\Users\Admin\AppData\Local\Temp\military.exe N/A
File renamed C:\Users\Admin\Pictures\TestUndo.crw => C:\Users\Admin\Pictures\TestUndo.crw.babyk C:\Users\Admin\AppData\Local\Temp\military.exe N/A
File opened for modification C:\Users\Admin\Pictures\UpdateWatch.tiff.babyk C:\Users\Admin\AppData\Local\Temp\military.exe N/A
File opened for modification C:\Users\Admin\Pictures\InstallUnlock.tiff C:\Users\Admin\AppData\Local\Temp\military.exe N/A
File renamed C:\Users\Admin\Pictures\InstallUnlock.tiff => C:\Users\Admin\Pictures\InstallUnlock.tiff.babyk C:\Users\Admin\AppData\Local\Temp\military.exe N/A
File opened for modification C:\Users\Admin\Pictures\StepInitialize.crw.babyk C:\Users\Admin\AppData\Local\Temp\military.exe N/A
File renamed C:\Users\Admin\Pictures\UnblockResume.png => C:\Users\Admin\Pictures\UnblockResume.png.babyk C:\Users\Admin\AppData\Local\Temp\military.exe N/A
File renamed C:\Users\Admin\Pictures\UnblockWrite.png => C:\Users\Admin\Pictures\UnblockWrite.png.babyk C:\Users\Admin\AppData\Local\Temp\military.exe N/A
File renamed C:\Users\Admin\Pictures\UpdateWatch.tiff => C:\Users\Admin\Pictures\UpdateWatch.tiff.babyk C:\Users\Admin\AppData\Local\Temp\military.exe N/A

Enumerates connected drives

Description Indicator Process Target
File opened (read-only) \??\K: C:\Users\Admin\AppData\Local\Temp\military.exe N/A
File opened (read-only) \??\B: C:\Users\Admin\AppData\Local\Temp\military.exe N/A
File opened (read-only) \??\M: C:\Users\Admin\AppData\Local\Temp\military.exe N/A
File opened (read-only) \??\R: C:\Users\Admin\AppData\Local\Temp\military.exe N/A
File opened (read-only) \??\E: C:\Users\Admin\AppData\Local\Temp\military.exe N/A
File opened (read-only) \??\T: C:\Users\Admin\AppData\Local\Temp\military.exe N/A
File opened (read-only) \??\Y: C:\Users\Admin\AppData\Local\Temp\military.exe N/A
File opened (read-only) \??\P: C:\Users\Admin\AppData\Local\Temp\military.exe N/A
File opened (read-only) \??\F: C:\Users\Admin\AppData\Local\Temp\military.exe N/A
File opened (read-only) \??\G: C:\Users\Admin\AppData\Local\Temp\military.exe N/A
File opened (read-only) \??\H: C:\Users\Admin\AppData\Local\Temp\military.exe N/A
File opened (read-only) \??\Q: C:\Users\Admin\AppData\Local\Temp\military.exe N/A
File opened (read-only) \??\N: C:\Users\Admin\AppData\Local\Temp\military.exe N/A
File opened (read-only) \??\V: C:\Users\Admin\AppData\Local\Temp\military.exe N/A
File opened (read-only) \??\I: C:\Users\Admin\AppData\Local\Temp\military.exe N/A
File opened (read-only) \??\S: C:\Users\Admin\AppData\Local\Temp\military.exe N/A
File opened (read-only) \??\L: C:\Users\Admin\AppData\Local\Temp\military.exe N/A
File opened (read-only) \??\X: C:\Users\Admin\AppData\Local\Temp\military.exe N/A
File opened (read-only) \??\U: C:\Users\Admin\AppData\Local\Temp\military.exe N/A
File opened (read-only) \??\O: C:\Users\Admin\AppData\Local\Temp\military.exe N/A
File opened (read-only) \??\A: C:\Users\Admin\AppData\Local\Temp\military.exe N/A
File opened (read-only) \??\J: C:\Users\Admin\AppData\Local\Temp\military.exe N/A
File opened (read-only) \??\Z: C:\Users\Admin\AppData\Local\Temp\military.exe N/A
File opened (read-only) \??\W: C:\Users\Admin\AppData\Local\Temp\military.exe N/A

Enumerates physical storage devices

Interacts with shadow copies

ransomware
Description Indicator Process Target
N/A N/A C:\Windows\system32\vssadmin.exe N/A
N/A N/A C:\Windows\system32\vssadmin.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\military.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\military.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeBackupPrivilege N/A C:\Windows\system32\vssvc.exe N/A
Token: SeRestorePrivilege N/A C:\Windows\system32\vssvc.exe N/A
Token: SeAuditPrivilege N/A C:\Windows\system32\vssvc.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\military.exe

"C:\Users\Admin\AppData\Local\Temp\military.exe"

C:\Windows\System32\cmd.exe

"C:\Windows\System32\cmd.exe" /c vssadmin.exe delete shadows /all /quiet

C:\Windows\system32\vssadmin.exe

vssadmin.exe delete shadows /all /quiet

C:\Windows\system32\vssvc.exe

C:\Windows\system32\vssvc.exe

C:\Windows\System32\cmd.exe

"C:\Windows\System32\cmd.exe" /c vssadmin.exe delete shadows /all /quiet

C:\Windows\system32\vssadmin.exe

vssadmin.exe delete shadows /all /quiet

Network

N/A

Files

memory/3996-3-0x0000000003880000-0x0000000003881000-memory.dmp

memory/3996-2-0x0000000003080000-0x0000000003081000-memory.dmp

memory/3792-4-0x0000000000000000-mapping.dmp

memory/3276-5-0x0000000000000000-mapping.dmp

memory/1020-6-0x0000000000000000-mapping.dmp

memory/4024-7-0x0000000000000000-mapping.dmp