chaos | 0d9fcb8894240750cb5e4222ea78572aba6618eb5297c2069588ceb979d52d8b

Resubmissions

13/07/2024, 09:54

240713-lxcvgawdmn 10

13/07/2024, 09:52

240713-lv46yawdkj 10

13/07/2024, 09:46

240713-lrz3tayajc 10

Analysis

max time kernel
845s
max time network
847s
platform
windows7_x64
resource
win7-20240705-en
resource tags

arch:x64arch:x86image:win7-20240705-enlocale:en-usos:windows7-x64system
submitted
13/07/2024, 09:52

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Report Analysis Logs

General

Target

8727091cbb89e5e31eeb2503ffaa242601c8840eee0973fd62fedf1b4b58ab44.exe
Size

953KB
MD5

adb3dde4a25e596c16ced4cdfc6ff8dd
SHA1

7934e6bc9489933c0af8dfe7bdff482fc6759bdc
SHA256

8727091cbb89e5e31eeb2503ffaa242601c8840eee0973fd62fedf1b4b58ab44
SHA512

f14c27892ed4d11bdd46a130abc7fa40ae8c4577bcd45c3af7c5928b82f27c3646b906fda880e5c9df623071edaab8de82fd46af8f3194f33d7d46c2c3d1d587
SSDEEP

12288:vEPMLC814R2hig4tHkg2W+AU+R2TjsPvEpv8LpgUO4EP3SL98l0zmWHQuTwYzzjc:/ztQE1ov2AZ9HjkftWy3P

Score

10^/10

chaos defense_evasion evasion execution impact ransomware spyware stealer

Malware Config

Extracted

Path

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

Ransom Note

WELCOME, DODO has returned AGAIN. Your files have been encrypted and you won't be able to decrypt them. You can buy decryption software from us, this software will allow you to recover all of your data and remove the ransomware from your computer. The price of the software is $15. Payment can be made in Bitcoin or XMR. How do I pay, where do I get Bitcoin or XMR? Purchasing cryptocurrency varies from country to country, you are best advised to do a quick google search yourself to find out how to buy Bitcoin or XMR. Payment information: send $15, to one of our addresses, then send us email with payment confirmation and you'll get the decryption software in email. Email Address : [email protected] BTC address: bc1qsht77cpgw7kv420r4secmu88g34wvn96dsyc5s XMR address: 44GUTQ7WqysSjLDCXfTnsYLCVJNGp67AECA9kTrAvjYCNz3ScZkYXZKP2EbR3DfbXPUYw6bMkaBuYCd6PdJCYngr4WtCeFt

Emails

[email protected]

Signatures

Chaos
Ransomware family first seen in June 2021.
ransomware chaos

Chaos Ransomware 3 IoCs

resource	yara_rule
behavioral17/memory/1948-1-0x0000000001050000-0x0000000001144000-memory.dmp	family_chaos
behavioral17/files/0x00090000000120fa-5.dat	family_chaos
behavioral17/memory/1880-8-0x0000000000800000-0x00000000008F4000-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
1036	bcdedit.exe
1180	bcdedit.exe

Renames multiple (216) 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
1000	wbadmin.exe

Drops startup file 3 IoCs

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

Executes dropped EXE 1 IoCs

pid	Process
1880	svchost.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\Videos\desktop.ini	svchost.exe
File opened for modification	C:\Users\Public\Pictures\Sample Pictures\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\Links\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\Contacts\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Accessories\Desktop.ini	svchost.exe
File opened for modification	C:\Users\Public\Music\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\Music\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\Downloads\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\SendTo\Desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Accessories\System Tools\Desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\Desktop\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\Documents\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Administrative Tools\desktop.ini	svchost.exe
File opened for modification	C:\Users\Public\Music\Sample Music\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\Favorites\Links for United States\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Internet Explorer\Quick Launch\desktop.ini	svchost.exe
File opened for modification	C:\Users\Public\Desktop\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\desktop.ini	svchost.exe
File opened for modification	C:\Users\Public\Documents\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Libraries\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Accessories\Accessibility\Desktop.ini	svchost.exe
File opened for modification	C:\Users\Public\Pictures\desktop.ini	svchost.exe
File opened for modification	C:\Users\Public\Videos\Sample Videos\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\Favorites\Links\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\Searches\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\Saved Games\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\Favorites\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Internet Explorer\Quick Launch\User Pinned\TaskBar\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Maintenance\Desktop.ini	svchost.exe
File opened for modification	C:\Users\Public\Videos\desktop.ini	svchost.exe
File opened for modification	F:\$RECYCLE.BIN\S-1-5-21-2172136094-3310281978-782691160-1000\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\Pictures\desktop.ini	svchost.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-1-5-21-2172136094-3310281978-782691160-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\AppData\\Local\\Temp\\qs7jbetko.jpg"	svchost.exe

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

System Information Discovery
T1082

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
628	vssadmin.exe

Opens file in notepad (likely ransom note) 1 IoCs

ransomware

pid	Process
1796	NOTEPAD.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
1880	svchost.exe

Suspicious behavior: EnumeratesProcesses 7 IoCs

pid	Process
1948	8727091cbb89e5e31eeb2503ffaa242601c8840eee0973fd62fedf1b4b58ab44.exe
1948	8727091cbb89e5e31eeb2503ffaa242601c8840eee0973fd62fedf1b4b58ab44.exe
1948	8727091cbb89e5e31eeb2503ffaa242601c8840eee0973fd62fedf1b4b58ab44.exe
1880	svchost.exe
1880	svchost.exe
1880	svchost.exe
1880	svchost.exe

Suspicious use of AdjustPrivilegeToken 48 IoCs

description	pid	Process
Token: SeDebugPrivilege	1948	8727091cbb89e5e31eeb2503ffaa242601c8840eee0973fd62fedf1b4b58ab44.exe
Token: SeDebugPrivilege	1880	svchost.exe
Token: SeBackupPrivilege	2904	vssvc.exe
Token: SeRestorePrivilege	2904	vssvc.exe
Token: SeAuditPrivilege	2904	vssvc.exe
Token: SeIncreaseQuotaPrivilege	1692	WMIC.exe
Token: SeSecurityPrivilege	1692	WMIC.exe
Token: SeTakeOwnershipPrivilege	1692	WMIC.exe
Token: SeLoadDriverPrivilege	1692	WMIC.exe
Token: SeSystemProfilePrivilege	1692	WMIC.exe
Token: SeSystemtimePrivilege	1692	WMIC.exe
Token: SeProfSingleProcessPrivilege	1692	WMIC.exe
Token: SeIncBasePriorityPrivilege	1692	WMIC.exe
Token: SeCreatePagefilePrivilege	1692	WMIC.exe
Token: SeBackupPrivilege	1692	WMIC.exe
Token: SeRestorePrivilege	1692	WMIC.exe
Token: SeShutdownPrivilege	1692	WMIC.exe
Token: SeDebugPrivilege	1692	WMIC.exe
Token: SeSystemEnvironmentPrivilege	1692	WMIC.exe
Token: SeRemoteShutdownPrivilege	1692	WMIC.exe
Token: SeUndockPrivilege	1692	WMIC.exe
Token: SeManageVolumePrivilege	1692	WMIC.exe
Token: 33	1692	WMIC.exe
Token: 34	1692	WMIC.exe
Token: 35	1692	WMIC.exe
Token: SeIncreaseQuotaPrivilege	1692	WMIC.exe
Token: SeSecurityPrivilege	1692	WMIC.exe
Token: SeTakeOwnershipPrivilege	1692	WMIC.exe
Token: SeLoadDriverPrivilege	1692	WMIC.exe
Token: SeSystemProfilePrivilege	1692	WMIC.exe
Token: SeSystemtimePrivilege	1692	WMIC.exe
Token: SeProfSingleProcessPrivilege	1692	WMIC.exe
Token: SeIncBasePriorityPrivilege	1692	WMIC.exe
Token: SeCreatePagefilePrivilege	1692	WMIC.exe
Token: SeBackupPrivilege	1692	WMIC.exe
Token: SeRestorePrivilege	1692	WMIC.exe
Token: SeShutdownPrivilege	1692	WMIC.exe
Token: SeDebugPrivilege	1692	WMIC.exe
Token: SeSystemEnvironmentPrivilege	1692	WMIC.exe
Token: SeRemoteShutdownPrivilege	1692	WMIC.exe
Token: SeUndockPrivilege	1692	WMIC.exe
Token: SeManageVolumePrivilege	1692	WMIC.exe
Token: 33	1692	WMIC.exe
Token: 34	1692	WMIC.exe
Token: 35	1692	WMIC.exe
Token: SeBackupPrivilege	1088	wbengine.exe
Token: SeRestorePrivilege	1088	wbengine.exe
Token: SeSecurityPrivilege	1088	wbengine.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 1948 wrote to memory of 1880	1948	8727091cbb89e5e31eeb2503ffaa242601c8840eee0973fd62fedf1b4b58ab44.exe	30
PID 1948 wrote to memory of 1880	1948	8727091cbb89e5e31eeb2503ffaa242601c8840eee0973fd62fedf1b4b58ab44.exe	30
PID 1948 wrote to memory of 1880	1948	8727091cbb89e5e31eeb2503ffaa242601c8840eee0973fd62fedf1b4b58ab44.exe	30
PID 1880 wrote to memory of 2936	1880	svchost.exe	32
PID 1880 wrote to memory of 2936	1880	svchost.exe	32
PID 1880 wrote to memory of 2936	1880	svchost.exe	32
PID 2936 wrote to memory of 628	2936	cmd.exe	34
PID 2936 wrote to memory of 628	2936	cmd.exe	34
PID 2936 wrote to memory of 628	2936	cmd.exe	34
PID 2936 wrote to memory of 1692	2936	cmd.exe	37
PID 2936 wrote to memory of 1692	2936	cmd.exe	37
PID 2936 wrote to memory of 1692	2936	cmd.exe	37
PID 1880 wrote to memory of 1532	1880	svchost.exe	39
PID 1880 wrote to memory of 1532	1880	svchost.exe	39
PID 1880 wrote to memory of 1532	1880	svchost.exe	39
PID 1532 wrote to memory of 1036	1532	cmd.exe	41
PID 1532 wrote to memory of 1036	1532	cmd.exe	41
PID 1532 wrote to memory of 1036	1532	cmd.exe	41
PID 1532 wrote to memory of 1180	1532	cmd.exe	42
PID 1532 wrote to memory of 1180	1532	cmd.exe	42
PID 1532 wrote to memory of 1180	1532	cmd.exe	42
PID 1880 wrote to memory of 1900	1880	svchost.exe	43
PID 1880 wrote to memory of 1900	1880	svchost.exe	43
PID 1880 wrote to memory of 1900	1880	svchost.exe	43
PID 1900 wrote to memory of 1000	1900	cmd.exe	45
PID 1900 wrote to memory of 1000	1900	cmd.exe	45
PID 1900 wrote to memory of 1000	1900	cmd.exe	45
PID 1880 wrote to memory of 1796	1880	svchost.exe	49
PID 1880 wrote to memory of 1796	1880	svchost.exe	49
PID 1880 wrote to memory of 1796	1880	svchost.exe	49

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\8727091cbb89e5e31eeb2503ffaa242601c8840eee0973fd62fedf1b4b58ab44.exe
"C:\Users\Admin\AppData\Local\Temp\8727091cbb89e5e31eeb2503ffaa242601c8840eee0973fd62fedf1b4b58ab44.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1948
- C:\Users\Admin\AppData\Roaming\svchost.exe
  "C:\Users\Admin\AppData\Roaming\svchost.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:1880
- - 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:2936
  - - C:\Windows\system32\vssadmin.exe
      vssadmin delete shadows /all /quiet
      4⤵
      Interacts with shadow copies
      PID:628
  - - C:\Windows\System32\Wbem\WMIC.exe
      wmic shadowcopy delete
      4⤵
      Suspicious use of AdjustPrivilegeToken
      PID:1692
- - 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:1532
  - - C:\Windows\system32\bcdedit.exe
      bcdedit /set {default} bootstatuspolicy ignoreallfailures
      4⤵
      Modifies boot configuration data using bcdedit
      PID:1036
  - - C:\Windows\system32\bcdedit.exe
      bcdedit /set {default} recoveryenabled no
      4⤵
      Modifies boot configuration data using bcdedit
      PID:1180
- - C:\Windows\System32\cmd.exe
    "C:\Windows\System32\cmd.exe" /C wbadmin delete catalog -quiet
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:1900
  - - C:\Windows\system32\wbadmin.exe
      wbadmin delete catalog -quiet
      4⤵
      Deletes backup catalog
      PID:1000
- - C:\Windows\system32\NOTEPAD.EXE
    "C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\AppData\Roaming\PLEASEREAD.txt
    3⤵
    - Opens file in notepad (likely ransom note)
    PID:1796

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:2904

C:\Windows\system32\wbengine.exe
"C:\Windows\system32\wbengine.exe"
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:1088

C:\Windows\System32\vdsldr.exe
C:\Windows\System32\vdsldr.exe -Embedding
1⤵
PID:2248

C:\Windows\System32\vds.exe
C:\Windows\System32\vds.exe
1⤵
PID:2632

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

Direct Volume Access

T1006

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\svchost.exe

Filesize
953KB

MD5
adb3dde4a25e596c16ced4cdfc6ff8dd

SHA1
7934e6bc9489933c0af8dfe7bdff482fc6759bdc

SHA256
8727091cbb89e5e31eeb2503ffaa242601c8840eee0973fd62fedf1b4b58ab44

SHA512
f14c27892ed4d11bdd46a130abc7fa40ae8c4577bcd45c3af7c5928b82f27c3646b906fda880e5c9df623071edaab8de82fd46af8f3194f33d7d46c2c3d1d587

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

Filesize
898B

MD5
30f33638264fec81af03fc5a9eddd072

SHA1
72d5d2da2ad261ec87c53d05b570c89e917e8ff1

SHA256
35bfff091f9ccc347a27baa02e44db0e4d02ade43f1767777e24d0a6a7abee89

SHA512
f5b0e836a2d963dc81c2640921f6bec66ea0a12fdda7549140c2cc1ab028f1c198d83fbb83b867770b061002573f23d6927a2e56b8724b85e5b84c042ab87c0e

Download Submit
memory/1880-7-0x000007FEF4F03000-0x000007FEF4F04000-memory.dmp

Filesize
4KB

Download
memory/1880-8-0x0000000000800000-0x00000000008F4000-memory.dmp

Filesize
976KB

Download
memory/1880-22-0x000007FEF4F00000-0x000007FEF58EC000-memory.dmp

Filesize
9.9MB

Download
memory/1880-498-0x000007FEF4F03000-0x000007FEF4F04000-memory.dmp

Filesize
4KB

Download
memory/1880-499-0x000007FEF4F00000-0x000007FEF58EC000-memory.dmp

Filesize
9.9MB

Download
memory/1948-0-0x000007FEF58F3000-0x000007FEF58F4000-memory.dmp

Filesize
4KB

Download
memory/1948-1-0x0000000001050000-0x0000000001144000-memory.dmp

Filesize
976KB

Download