chaos | 7e620a991e554e89cfdb7ca4b131e237cd9936bd14ef48dc52872e0793415135

Analysis

max time kernel
57s
max time network
17s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
30-05-2024 14:51

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General

Target

ESET Crack.exe
Size

381KB
MD5

ad284d8e19e16bb34a12648c219eff2d
SHA1

d5371b5cbc05c75548112b2ab42b47b4a695ac0a
SHA256

7e620a991e554e89cfdb7ca4b131e237cd9936bd14ef48dc52872e0793415135
SHA512

24ff90ba62bab82fab76bc5f748a4fc13708a484fdebdc6320f068b8fc42da8723c6e0253fab1752e1ed8c3de8bfcbd8850c7bb1d7be6cd02a88c03a0b4c4b00
SSDEEP

6144:eB0r9q8EF+HSt/TRAfo7f4Zp3Ld61GN4SwNqEzf:e2EF+HS9TRAfo7f4ZpLc1GN4SwNqEzf

Score

10^/10

chaos defense_evasion evasion execution impact ransomware spyware stealer

Malware Config

Extracted

Path

C:\Users\Admin\Documents\read_it.txt

Ransom Note

All of your files have been encrypted Your computer was infected with a ransomware virus. Your files have been encrypted and you won't be able to decrypt them without our help.What can I do to get my files back?You can buy our special decryption software, this software will allow you to recover all of your data and remove the ransomware from your computer.The price for the software is $1,500. Payment can be made in Bitcoin only. How do I pay, where do I get Bitcoin? Purchasing Bitcoin varies from country to country, you are best advised to do a quick google search yourself to find out how to buy Bitcoin. Many of our customers have reported these sites to be fast and reliable: Coinmama - hxxps://www.coinmama.com Bitpanda - hxxps://www.bitpanda.com Payment informationAmount: 0.1473766 BTC

Signatures

Chaos
Ransomware family first seen in June 2021.
ransomware chaos

Chaos Ransomware 3 IoCs

resource	yara_rule
behavioral1/memory/1940-1-0x0000000000D90000-0x0000000000DF6000-memory.dmp	family_chaos
behavioral1/files/0x000b000000013413-5.dat	family_chaos
behavioral1/memory/2364-7-0x0000000001160000-0x00000000011C6000-memory.dmp	family_chaos

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

Modifies boot configuration data using bcdedit 1 TTPs 2 IoCs

ransomware evasion

Inhibit System Recovery

T1490

pid	Process
1872	bcdedit.exe
2160	bcdedit.exe

Renames multiple (177) files with added filename extension
This suggests ransomware activity of encrypting all the files on the system.
ransomware

Deletes backup catalog 3 TTPs 1 IoCs

Uses wbadmin.exe to inhibit system recovery.

ransomware

Command and Scripting Interpreter

T1059

File Deletion

T1070.004

Inhibit System Recovery

T1490

pid	Process
1964	wbadmin.exe

Drops startup file 3 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Firefox Software Updator.url	Firefox Software Updator.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\desktop.ini	Firefox Software Updator.exe
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\read_it.txt	Firefox Software Updator.exe

Executes dropped EXE 1 IoCs

pid	Process
2364	Firefox Software Updator.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) 34 IoCs

description	ioc	Process
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Administrative Tools\desktop.ini	Firefox Software Updator.exe
File opened for modification	C:\Users\Public\Music\Sample Music\desktop.ini	Firefox Software Updator.exe
File opened for modification	F:\$RECYCLE.BIN\S-1-5-21-3452737119-3959686427-228443150-1000\desktop.ini	Firefox Software Updator.exe
File opened for modification	C:\Users\Admin\Downloads\desktop.ini	Firefox Software Updator.exe
File opened for modification	C:\Users\Admin\Videos\desktop.ini	Firefox Software Updator.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Libraries\desktop.ini	Firefox Software Updator.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Accessories\Accessibility\Desktop.ini	Firefox Software Updator.exe
File opened for modification	C:\Users\Public\Documents\desktop.ini	Firefox Software Updator.exe
File opened for modification	C:\Users\Public\Videos\desktop.ini	Firefox Software Updator.exe
File opened for modification	C:\Users\Admin\Favorites\Links for United States\desktop.ini	Firefox Software Updator.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Internet Explorer\Quick Launch\desktop.ini	Firefox Software Updator.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\desktop.ini	Firefox Software Updator.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Accessories\Desktop.ini	Firefox Software Updator.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\SendTo\Desktop.ini	Firefox Software Updator.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Accessories\System Tools\Desktop.ini	Firefox Software Updator.exe
File opened for modification	C:\Users\Admin\Links\desktop.ini	Firefox Software Updator.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Maintenance\Desktop.ini	Firefox Software Updator.exe
File opened for modification	C:\Users\Public\Pictures\desktop.ini	Firefox Software Updator.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\desktop.ini	Firefox Software Updator.exe
File opened for modification	C:\Users\Admin\Desktop\desktop.ini	Firefox Software Updator.exe
File opened for modification	C:\Users\Admin\Contacts\desktop.ini	Firefox Software Updator.exe
File opened for modification	C:\Users\Admin\Pictures\desktop.ini	Firefox Software Updator.exe
File opened for modification	C:\Users\Admin\Favorites\desktop.ini	Firefox Software Updator.exe
File opened for modification	C:\Users\Public\Videos\Sample Videos\desktop.ini	Firefox Software Updator.exe
File opened for modification	C:\Users\Public\Desktop\desktop.ini	Firefox Software Updator.exe
File opened for modification	C:\Users\Admin\Documents\desktop.ini	Firefox Software Updator.exe
File opened for modification	C:\Users\Admin\Favorites\Links\desktop.ini	Firefox Software Updator.exe
File opened for modification	C:\Users\Admin\Searches\desktop.ini	Firefox Software Updator.exe
File opened for modification	C:\Users\Public\Music\desktop.ini	Firefox Software Updator.exe
File opened for modification	C:\Users\Public\Pictures\Sample Pictures\desktop.ini	Firefox Software Updator.exe
File opened for modification	C:\Users\Admin\Music\desktop.ini	Firefox Software Updator.exe
File opened for modification	C:\Users\Admin\Saved Games\desktop.ini	Firefox Software Updator.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Internet Explorer\Quick Launch\User Pinned\TaskBar\desktop.ini	Firefox Software Updator.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\desktop.ini	Firefox Software Updator.exe

Sets desktop wallpaper using registry 2 TTPs 1 IoCs

ransomware

Defacement

T1491

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3452737119-3959686427-228443150-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\AppData\\Local\\Temp\\ewb5lrxpy.jpg"	Firefox Software Updator.exe

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

System Information Discovery
T1082

Interacts with shadow copies 2 TTPs 1 IoCs

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

ransomware

File Deletion

T1070.004

Inhibit System Recovery

T1490

pid	Process
2772	vssadmin.exe

Opens file in notepad (likely ransom note) 1 IoCs

ransomware

pid	Process
2428	NOTEPAD.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
2364	Firefox Software Updator.exe

Suspicious behavior: EnumeratesProcesses 5 IoCs

pid	Process
1940	ESET Crack.exe
1940	ESET Crack.exe
2364	Firefox Software Updator.exe
2364	Firefox Software Updator.exe
2364	Firefox Software Updator.exe

Suspicious use of AdjustPrivilegeToken 48 IoCs

description	pid	Process
Token: SeDebugPrivilege	1940	ESET Crack.exe
Token: SeDebugPrivilege	2364	Firefox Software Updator.exe
Token: SeBackupPrivilege	2492	vssvc.exe
Token: SeRestorePrivilege	2492	vssvc.exe
Token: SeAuditPrivilege	2492	vssvc.exe
Token: SeIncreaseQuotaPrivilege	1424	WMIC.exe
Token: SeSecurityPrivilege	1424	WMIC.exe
Token: SeTakeOwnershipPrivilege	1424	WMIC.exe
Token: SeLoadDriverPrivilege	1424	WMIC.exe
Token: SeSystemProfilePrivilege	1424	WMIC.exe
Token: SeSystemtimePrivilege	1424	WMIC.exe
Token: SeProfSingleProcessPrivilege	1424	WMIC.exe
Token: SeIncBasePriorityPrivilege	1424	WMIC.exe
Token: SeCreatePagefilePrivilege	1424	WMIC.exe
Token: SeBackupPrivilege	1424	WMIC.exe
Token: SeRestorePrivilege	1424	WMIC.exe
Token: SeShutdownPrivilege	1424	WMIC.exe
Token: SeDebugPrivilege	1424	WMIC.exe
Token: SeSystemEnvironmentPrivilege	1424	WMIC.exe
Token: SeRemoteShutdownPrivilege	1424	WMIC.exe
Token: SeUndockPrivilege	1424	WMIC.exe
Token: SeManageVolumePrivilege	1424	WMIC.exe
Token: 33	1424	WMIC.exe
Token: 34	1424	WMIC.exe
Token: 35	1424	WMIC.exe
Token: SeIncreaseQuotaPrivilege	1424	WMIC.exe
Token: SeSecurityPrivilege	1424	WMIC.exe
Token: SeTakeOwnershipPrivilege	1424	WMIC.exe
Token: SeLoadDriverPrivilege	1424	WMIC.exe
Token: SeSystemProfilePrivilege	1424	WMIC.exe
Token: SeSystemtimePrivilege	1424	WMIC.exe
Token: SeProfSingleProcessPrivilege	1424	WMIC.exe
Token: SeIncBasePriorityPrivilege	1424	WMIC.exe
Token: SeCreatePagefilePrivilege	1424	WMIC.exe
Token: SeBackupPrivilege	1424	WMIC.exe
Token: SeRestorePrivilege	1424	WMIC.exe
Token: SeShutdownPrivilege	1424	WMIC.exe
Token: SeDebugPrivilege	1424	WMIC.exe
Token: SeSystemEnvironmentPrivilege	1424	WMIC.exe
Token: SeRemoteShutdownPrivilege	1424	WMIC.exe
Token: SeUndockPrivilege	1424	WMIC.exe
Token: SeManageVolumePrivilege	1424	WMIC.exe
Token: 33	1424	WMIC.exe
Token: 34	1424	WMIC.exe
Token: 35	1424	WMIC.exe
Token: SeBackupPrivilege	1676	wbengine.exe
Token: SeRestorePrivilege	1676	wbengine.exe
Token: SeSecurityPrivilege	1676	wbengine.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 1940 wrote to memory of 2364	1940	ESET Crack.exe	28
PID 1940 wrote to memory of 2364	1940	ESET Crack.exe	28
PID 1940 wrote to memory of 2364	1940	ESET Crack.exe	28
PID 2364 wrote to memory of 2712	2364	Firefox Software Updator.exe	30
PID 2364 wrote to memory of 2712	2364	Firefox Software Updator.exe	30
PID 2364 wrote to memory of 2712	2364	Firefox Software Updator.exe	30
PID 2712 wrote to memory of 2772	2712	cmd.exe	32
PID 2712 wrote to memory of 2772	2712	cmd.exe	32
PID 2712 wrote to memory of 2772	2712	cmd.exe	32
PID 2712 wrote to memory of 1424	2712	cmd.exe	35
PID 2712 wrote to memory of 1424	2712	cmd.exe	35
PID 2712 wrote to memory of 1424	2712	cmd.exe	35
PID 2364 wrote to memory of 2312	2364	Firefox Software Updator.exe	37
PID 2364 wrote to memory of 2312	2364	Firefox Software Updator.exe	37
PID 2364 wrote to memory of 2312	2364	Firefox Software Updator.exe	37
PID 2312 wrote to memory of 1872	2312	cmd.exe	39
PID 2312 wrote to memory of 1872	2312	cmd.exe	39
PID 2312 wrote to memory of 1872	2312	cmd.exe	39
PID 2312 wrote to memory of 2160	2312	cmd.exe	40
PID 2312 wrote to memory of 2160	2312	cmd.exe	40
PID 2312 wrote to memory of 2160	2312	cmd.exe	40
PID 2364 wrote to memory of 2220	2364	Firefox Software Updator.exe	41
PID 2364 wrote to memory of 2220	2364	Firefox Software Updator.exe	41
PID 2364 wrote to memory of 2220	2364	Firefox Software Updator.exe	41
PID 2220 wrote to memory of 1964	2220	cmd.exe	43
PID 2220 wrote to memory of 1964	2220	cmd.exe	43
PID 2220 wrote to memory of 1964	2220	cmd.exe	43
PID 2364 wrote to memory of 2428	2364	Firefox Software Updator.exe	47
PID 2364 wrote to memory of 2428	2364	Firefox Software Updator.exe	47
PID 2364 wrote to memory of 2428	2364	Firefox Software Updator.exe	47

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
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\ESET Crack.exe
"C:\Users\Admin\AppData\Local\Temp\ESET Crack.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1940
- C:\Users\Admin\AppData\Roaming\Firefox Software Updator.exe
  "C:\Users\Admin\AppData\Roaming\Firefox Software Updator.exe"
  2⤵
  - Drops startup file
  - Executes dropped EXE
  - Drops desktop.ini file(s)
  - Sets desktop wallpaper using registry
  - Suspicious behavior: AddClipboardFormatListener
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2364
- - C:\Windows\System32\cmd.exe
    "C:\Windows\System32\cmd.exe" /C vssadmin delete shadows /all /quiet & wmic shadowcopy delete
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:2712
  - - C:\Windows\system32\vssadmin.exe
      vssadmin delete shadows /all /quiet
      4⤵
      Interacts with shadow copies
      PID:2772
  - - C:\Windows\System32\Wbem\WMIC.exe
      wmic shadowcopy delete
      4⤵
      Suspicious use of AdjustPrivilegeToken
      PID:1424
- - C:\Windows\System32\cmd.exe
    "C:\Windows\System32\cmd.exe" /C bcdedit /set {default} bootstatuspolicy ignoreallfailures & bcdedit /set {default} recoveryenabled no
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:2312
  - - C:\Windows\system32\bcdedit.exe
      bcdedit /set {default} bootstatuspolicy ignoreallfailures
      4⤵
      Modifies boot configuration data using bcdedit
      PID:1872
  - - C:\Windows\system32\bcdedit.exe
      bcdedit /set {default} recoveryenabled no
      4⤵
      Modifies boot configuration data using bcdedit
      PID:2160
- - C:\Windows\System32\cmd.exe
    "C:\Windows\System32\cmd.exe" /C wbadmin delete catalog -quiet
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:2220
  - - C:\Windows\system32\wbadmin.exe
      wbadmin delete catalog -quiet
      4⤵
      Deletes backup catalog
      PID:1964
- - C:\Windows\system32\NOTEPAD.EXE
    "C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\AppData\Roaming\read_it.txt
    3⤵
    - Opens file in notepad (likely ransom note)
    PID:2428

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:2492

C:\Windows\system32\wbengine.exe
"C:\Windows\system32\wbengine.exe"
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:1676

C:\Windows\System32\vdsldr.exe
C:\Windows\System32\vdsldr.exe -Embedding
1⤵
PID:1788

C:\Windows\System32\vds.exe
C:\Windows\System32\vds.exe
1⤵
PID:2484

C:\Windows\system32\rundll32.exe
"C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Roaming\Microsoft\Internet Explorer\Quick Launch\User Pinned\TaskBar\Internet Explorer.lnk.SYS
1⤵
PID:1104

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

Windows Management Instrumentation

T1047

Persistence

Privilege Escalation

Defense Evasion

Indicator Removal

T1070

File Deletion

T1070.004

Modify Registry

T1112

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

Defacement

T1491

Inhibit System Recovery

T1490

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Roaming\Firefox Software Updator.exe

Filesize
381KB

MD5
ad284d8e19e16bb34a12648c219eff2d

SHA1
d5371b5cbc05c75548112b2ab42b47b4a695ac0a

SHA256
7e620a991e554e89cfdb7ca4b131e237cd9936bd14ef48dc52872e0793415135

SHA512
24ff90ba62bab82fab76bc5f748a4fc13708a484fdebdc6320f068b8fc42da8723c6e0253fab1752e1ed8c3de8bfcbd8850c7bb1d7be6cd02a88c03a0b4c4b00

Download Submit
C:\Users\Admin\Documents\read_it.txt

Filesize
815B

MD5
edba6fa07dacc53d145651c0c33dc6d8

SHA1
6f273258826c011a0da1c370c88871b8869fade6

SHA256
4d95153cff46c7875258820e9b0c9229719ab4110a447961c44aaeecfdc0c91d

SHA512
0a3bb4f3b03fa4b1ea4dd12184e2dad919f0751eaf8d30a0effcfd50b527cd688a2ed1aa294368c6e77639bb731328e0ee0203d8d01e8881164a7799f5814ae2

Download Submit
memory/1940-0-0x000007FEF51D3000-0x000007FEF51D4000-memory.dmp

Filesize
4KB

Download
memory/1940-1-0x0000000000D90000-0x0000000000DF6000-memory.dmp

Filesize
408KB

Download
memory/2364-7-0x0000000001160000-0x00000000011C6000-memory.dmp

Filesize
408KB

Download
memory/2364-19-0x000007FEF51D0000-0x000007FEF5BBC000-memory.dmp

Filesize
9.9MB

Download
memory/2364-26-0x000007FEF51D0000-0x000007FEF5BBC000-memory.dmp

Filesize
9.9MB

Download
memory/2364-418-0x000007FEF51D0000-0x000007FEF5BBC000-memory.dmp

Filesize
9.9MB

Download