142482b54e8df90d91524768c5df2009899da7d011d6eff3082c9d4b26368a97

Analysis

max time kernel
427s
max time network
428s
platform
windows10-2004_x64
resource
win10v2004-20240709-en
resource tags

arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system
submitted
20-07-2024 15:28

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General

Target

82ad5183183a5fa7d9f2324c67b21bb7c97ed1dd46cfb7b63494a6b94f8b893a.exe
Size

588KB
MD5

edc39d6c6198e24db56f29dfbb988cd8
SHA1

55390d5df006dfc2083788360f0d94843f8864d7
SHA256

82ad5183183a5fa7d9f2324c67b21bb7c97ed1dd46cfb7b63494a6b94f8b893a
SHA512

7d62e2ec803ba164750c37b72955a27afee0d886618652699217abf5d098e4bab2a9752253724433061134c56292c9eb85b1c20d2cd1434b61701f4c948e39ca
SSDEEP

12288:xvwwiYGwyG9QhKNWYgeWYg955/155/Iiblc7cFghSa4G85oRv:xv8YGwyG9WKWm7ggF85Mv

Score

9^/10

defense_evasion execution impact ransomware spyware stealer

Malware Config

Signatures

Deletes shadow copies 3 TTPs
Ransomware often targets backup files to inhibit system recovery.
ransomware defense_evasion impact execution

File Deletion
T1070.004

Inhibit System Recovery
T1490

Windows Management Instrumentation
T1047
Renames multiple (1929) files with added filename extension
This suggests ransomware activity of encrypting all the files on the system.
ransomware

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-1176886754-713327781-2233697964-1000\Control Panel\International\Geo\Nation	82ad5183183a5fa7d9f2324c67b21bb7c97ed1dd46cfb7b63494a6b94f8b893a.exe

Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001

Drops desktop.ini file(s) 27 IoCs

description	ioc	Process
File opened for modification	C:\Users\Default\AppData\Roaming\Microsoft\Internet Explorer\Quick Launch\desktop.ini	82ad5183183a5fa7d9f2324c67b21bb7c97ed1dd46cfb7b63494a6b94f8b893a.exe
File opened for modification	C:\Users\Public\Music\desktop.ini	82ad5183183a5fa7d9f2324c67b21bb7c97ed1dd46cfb7b63494a6b94f8b893a.exe
File opened for modification	C:\Users\Public\Videos\desktop.ini	82ad5183183a5fa7d9f2324c67b21bb7c97ed1dd46cfb7b63494a6b94f8b893a.exe
File opened for modification	C:\Users\Admin\Documents\desktop.ini	82ad5183183a5fa7d9f2324c67b21bb7c97ed1dd46cfb7b63494a6b94f8b893a.exe
File opened for modification	C:\Users\Admin\Music\desktop.ini	82ad5183183a5fa7d9f2324c67b21bb7c97ed1dd46cfb7b63494a6b94f8b893a.exe
File opened for modification	C:\Users\Admin\OneDrive\desktop.ini	82ad5183183a5fa7d9f2324c67b21bb7c97ed1dd46cfb7b63494a6b94f8b893a.exe
File opened for modification	C:\Users\Admin\Pictures\desktop.ini	82ad5183183a5fa7d9f2324c67b21bb7c97ed1dd46cfb7b63494a6b94f8b893a.exe
File opened for modification	C:\Users\Admin\Pictures\Saved Pictures\desktop.ini	82ad5183183a5fa7d9f2324c67b21bb7c97ed1dd46cfb7b63494a6b94f8b893a.exe
File opened for modification	C:\Users\Admin\Searches\desktop.ini	82ad5183183a5fa7d9f2324c67b21bb7c97ed1dd46cfb7b63494a6b94f8b893a.exe
File opened for modification	C:\Users\Public\desktop.ini	82ad5183183a5fa7d9f2324c67b21bb7c97ed1dd46cfb7b63494a6b94f8b893a.exe
File opened for modification	C:\Users\Public\Documents\desktop.ini	82ad5183183a5fa7d9f2324c67b21bb7c97ed1dd46cfb7b63494a6b94f8b893a.exe
File opened for modification	F:\$RECYCLE.BIN\S-1-5-21-1176886754-713327781-2233697964-1000\desktop.ini	82ad5183183a5fa7d9f2324c67b21bb7c97ed1dd46cfb7b63494a6b94f8b893a.exe
File opened for modification	C:\Users\Public\Libraries\desktop.ini	82ad5183183a5fa7d9f2324c67b21bb7c97ed1dd46cfb7b63494a6b94f8b893a.exe
File opened for modification	C:\Users\Admin\Videos\desktop.ini	82ad5183183a5fa7d9f2324c67b21bb7c97ed1dd46cfb7b63494a6b94f8b893a.exe
File opened for modification	C:\Users\Public\Pictures\desktop.ini	82ad5183183a5fa7d9f2324c67b21bb7c97ed1dd46cfb7b63494a6b94f8b893a.exe
File opened for modification	C:\Users\Admin\Pictures\Camera Roll\desktop.ini	82ad5183183a5fa7d9f2324c67b21bb7c97ed1dd46cfb7b63494a6b94f8b893a.exe
File opened for modification	C:\Users\Admin\Favorites\Links\desktop.ini	82ad5183183a5fa7d9f2324c67b21bb7c97ed1dd46cfb7b63494a6b94f8b893a.exe
File opened for modification	C:\Users\Public\AccountPictures\desktop.ini	82ad5183183a5fa7d9f2324c67b21bb7c97ed1dd46cfb7b63494a6b94f8b893a.exe
File opened for modification	C:\Users\Public\Downloads\desktop.ini	82ad5183183a5fa7d9f2324c67b21bb7c97ed1dd46cfb7b63494a6b94f8b893a.exe
File opened for modification	C:\Users\Admin\Desktop\desktop.ini	82ad5183183a5fa7d9f2324c67b21bb7c97ed1dd46cfb7b63494a6b94f8b893a.exe
File opened for modification	C:\Users\Admin\Favorites\desktop.ini	82ad5183183a5fa7d9f2324c67b21bb7c97ed1dd46cfb7b63494a6b94f8b893a.exe
File opened for modification	C:\Users\Admin\Downloads\desktop.ini	82ad5183183a5fa7d9f2324c67b21bb7c97ed1dd46cfb7b63494a6b94f8b893a.exe
File opened for modification	C:\Users\Admin\Links\desktop.ini	82ad5183183a5fa7d9f2324c67b21bb7c97ed1dd46cfb7b63494a6b94f8b893a.exe
File opened for modification	C:\Users\Admin\Contacts\desktop.ini	82ad5183183a5fa7d9f2324c67b21bb7c97ed1dd46cfb7b63494a6b94f8b893a.exe
File opened for modification	C:\Users\Admin\Saved Games\desktop.ini	82ad5183183a5fa7d9f2324c67b21bb7c97ed1dd46cfb7b63494a6b94f8b893a.exe
File opened for modification	C:\Users\Public\Desktop\desktop.ini	82ad5183183a5fa7d9f2324c67b21bb7c97ed1dd46cfb7b63494a6b94f8b893a.exe
File opened for modification	C:\Users\Admin\3D Objects\desktop.ini	82ad5183183a5fa7d9f2324c67b21bb7c97ed1dd46cfb7b63494a6b94f8b893a.exe

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

System Information Discovery
T1082

Delays execution with timeout.exe 1 IoCs

evasion

pid	Process
5100	timeout.exe

Interacts with shadow copies 3 TTPs 1 IoCs

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

ransomware

File Deletion

T1070.004

Inhibit System Recovery

T1490

Direct Volume Access

T1006

pid	Process
312	vssadmin.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1368	82ad5183183a5fa7d9f2324c67b21bb7c97ed1dd46cfb7b63494a6b94f8b893a.exe
1368	82ad5183183a5fa7d9f2324c67b21bb7c97ed1dd46cfb7b63494a6b94f8b893a.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeBackupPrivilege	5512	vssvc.exe
Token: SeRestorePrivilege	5512	vssvc.exe
Token: SeAuditPrivilege	5512	vssvc.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 1368 wrote to memory of 312	1368	82ad5183183a5fa7d9f2324c67b21bb7c97ed1dd46cfb7b63494a6b94f8b893a.exe	84
PID 1368 wrote to memory of 312	1368	82ad5183183a5fa7d9f2324c67b21bb7c97ed1dd46cfb7b63494a6b94f8b893a.exe	84
PID 1368 wrote to memory of 5096	1368	82ad5183183a5fa7d9f2324c67b21bb7c97ed1dd46cfb7b63494a6b94f8b893a.exe	89
PID 1368 wrote to memory of 5096	1368	82ad5183183a5fa7d9f2324c67b21bb7c97ed1dd46cfb7b63494a6b94f8b893a.exe	89
PID 5096 wrote to memory of 5100	5096	cmd.exe	91
PID 5096 wrote to memory of 5100	5096	cmd.exe	91

Uses Volume Shadow Copy service COM API
The Volume Shadow Copy service is used to manage backups/snapshots.
ransomware

C:\Users\Admin\AppData\Local\Temp\82ad5183183a5fa7d9f2324c67b21bb7c97ed1dd46cfb7b63494a6b94f8b893a.exe
"C:\Users\Admin\AppData\Local\Temp\82ad5183183a5fa7d9f2324c67b21bb7c97ed1dd46cfb7b63494a6b94f8b893a.exe"
1⤵
- Checks computer location settings
- Drops desktop.ini file(s)
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1368
- C:\Windows\SYSTEM32\vssadmin.exe
  vssadmin delete shadows /all /quiet
  2⤵
  - Interacts with shadow copies
  PID:312
- C:\Windows\system32\cmd.exe
  "C:\Windows\system32\cmd.exe" /c timeout 1 && del "C:\Users\Admin\AppData\Local\Temp\82ad5183183a5fa7d9f2324c67b21bb7c97ed1dd46cfb7b63494a6b94f8b893a.exe" >> NUL
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:5096
- - C:\Windows\system32\timeout.exe
    timeout 1
    3⤵
    - Delays execution with timeout.exe
    PID:5100

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:5512

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Windows Management Instrumentation

T1047

Persistence

Privilege Escalation

Defense Evasion

Direct Volume Access

T1006

Indicator Removal

T1070

File Deletion

T1070.004

Credential Access

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

Inhibit System Recovery

T1490

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Adobe\Acrobat\DC\Cache\!=How_to_decrypt_files=!.txt

Filesize
738B

MD5
76298dcfb383592c8c0358bcb92f6d5d

SHA1
2e9630df9137983f124734fc443b8ae011027990

SHA256
5755695f57653492c7171244fbc21967d71bad229f22f231567ba5106a8bc497

SHA512
7acdfbcd0b9016cfd61ed39ebc7351501001608817469d6312853f2412186fd39740f0c7784695419bab915ee2c631a900d66012f11ad1a054b5aa46d5d35367

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