chaos | e16d8362938a947ac10d73a586031edbbfe893d23c95785c8d32a1f2200e667d

Analysis

max time kernel
147s
max time network
118s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
02-05-2024 04:44

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General

Target

baal.rar
Size

244KB
MD5

206cfa47756bd42a8732291ae553683c
SHA1

e3fbf66dadf419bfdc027479a27868f62225a6dc
SHA256

e16d8362938a947ac10d73a586031edbbfe893d23c95785c8d32a1f2200e667d
SHA512

5f7c7bba541013ef6a70273034f4649b477f3623e1f8ad1cf89af90936627b79ba2d701426d3b7b29aa17d0e89d7a56e4836f61b323042e70062c8d3b73490f7
SSDEEP

6144:669zrN83QXlUpIUDp5Abz5mpqsxALFWlpz:62zrN838+p5Abz5mpqsxALFUz

Score

10^/10

chaos evasion ransomware spyware stealer

Malware Config

Extracted

Path

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

Ransom Note

YOUR PERSONAL INFORMATION IS NOW ENCRYPTED WITH MILITARY GRADE ENCRYPTION by BAAL RANSOMWARE All files on all affected machines and network have been encrypted with Baal Ransomware Encryption. What guarantees do we give to you? You can send 2 of any encrypted files to us to decrypt then send them back. Who is responsible for the Ransom Fee? The SARB & SA Mint Organization not its employees or assosiates will need to pay the fee to obtain the unique decryption code & tool that contains the private key linked to this specific ecryption. NOTE: All data is ecrypted (locked) not overitten hence can be decrypted with assossiated key only. You have only 6 (six) days to meet the Ransom fee in Bitcoin. Instructions: 1. Send 121 BTC (Bitcoins) to the following receiving address: 19DpJAWr6NCVT2oAnWieozQPsRK7Bj83r4 Note: All Bitcoin transactions need six confirmations in the blockchain from miners before being processed. In general sending Bitcoin can take anywhere from seconds to over 60 minutes. Typically, however, it will take 10 to 20 minutes In most cases, Bitcoin transactions need 1 to 1.5 hours to complete. 2. Send blockchain transaction id screenshot not link via to the email address: [email protected] 3. Once the transaction is be confirmed. We will email back the one-click decryption tool to fully decrypt and recover all your files and remove the randsomware on all your machines and network permantly. (No I.T. background required). 4. The decryption usually takes about a few minutes to an hour depending on the scale and size of the files and additional drives the Ransomware has spread onto the network. What guarantees do we give to you? You can send 3 of your encrypted files and we decrypt then send them back. You have 6 days until the decryption keys are terminated and all data on affected machines and networks will never be recovered. We make use of Military Grade AES Encryptions. Without the linked decryption key you can just forgot about ever recovering encrypted data. ------------------------------------------ 'Blessed are the strong for they shall inherit the Earth' - Codex Saerus

Emails

[email protected]

Wallets

19DpJAWr6NCVT2oAnWieozQPsRK7Bj83r4

Signatures

Chaos
Ransomware family first seen in June 2021.
ransomware chaos

Chaos Ransomware 3 IoCs

resource	yara_rule
behavioral1/files/0x0036000000014594-34.dat	family_chaos
behavioral1/memory/2692-35-0x0000000000B60000-0x0000000000BEE000-memory.dmp	family_chaos
behavioral1/memory/2492-41-0x0000000001280000-0x000000000130E000-memory.dmp	family_chaos

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

File Deletion
T1070.004

Inhibit System Recovery
T1490

Modifies boot configuration data using bcdedit 1 TTPs 2 IoCs

ransomware evasion

Inhibit System Recovery

T1490

pid	Process
2052	bcdedit.exe
2868	bcdedit.exe

Renames multiple (195) 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
1256	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\read_it.txt	svchost.exe

Executes dropped EXE 2 IoCs

pid	Process
2692	baal.exe
2492	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\Public\Pictures\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\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\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\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\Favorites\Links for United States\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\Searches\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\Accessories\Desktop.ini	svchost.exe
File opened for modification	C:\Users\Public\Videos\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\Links\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\Pictures\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\Start Menu\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\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Maintenance\Desktop.ini	svchost.exe
File opened for modification	C:\Users\Public\Desktop\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\Desktop\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\Music\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\Favorites\Links\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\Contacts\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\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\Internet Explorer\Quick Launch\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\Downloads\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\Videos\desktop.ini	svchost.exe
File opened for modification	C:\Users\Public\Documents\desktop.ini	svchost.exe
File opened for modification	C:\Users\Public\Pictures\Sample Pictures\desktop.ini	svchost.exe
File opened for modification	F:\$RECYCLE.BIN\S-1-5-21-1298544033-3225604241-2703760938-1000\desktop.ini	svchost.exe

Sets desktop wallpaper using registry 2 TTPs 2 IoCs

ransomware

Defacement

T1491

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\AppData\\Local\\Temp\\q8dywk8tb.jpg"	svchost.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\Pictures\\My Wallpaper.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 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
1644	vssadmin.exe

Opens file in notepad (likely ransom note) 1 IoCs

ransomware

pid	Process
2288	NOTEPAD.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
2492	svchost.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
2692	baal.exe
2692	baal.exe
2692	baal.exe
2492	svchost.exe
2492	svchost.exe
2492	svchost.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2556	7zFM.exe

Suspicious use of AdjustPrivilegeToken 51 IoCs

description	pid	Process
Token: SeRestorePrivilege	2556	7zFM.exe
Token: 35	2556	7zFM.exe
Token: SeSecurityPrivilege	2556	7zFM.exe
Token: SeDebugPrivilege	2692	baal.exe
Token: SeDebugPrivilege	2492	svchost.exe
Token: SeBackupPrivilege	1484	vssvc.exe
Token: SeRestorePrivilege	1484	vssvc.exe
Token: SeAuditPrivilege	1484	vssvc.exe
Token: SeIncreaseQuotaPrivilege	1700	WMIC.exe
Token: SeSecurityPrivilege	1700	WMIC.exe
Token: SeTakeOwnershipPrivilege	1700	WMIC.exe
Token: SeLoadDriverPrivilege	1700	WMIC.exe
Token: SeSystemProfilePrivilege	1700	WMIC.exe
Token: SeSystemtimePrivilege	1700	WMIC.exe
Token: SeProfSingleProcessPrivilege	1700	WMIC.exe
Token: SeIncBasePriorityPrivilege	1700	WMIC.exe
Token: SeCreatePagefilePrivilege	1700	WMIC.exe
Token: SeBackupPrivilege	1700	WMIC.exe
Token: SeRestorePrivilege	1700	WMIC.exe
Token: SeShutdownPrivilege	1700	WMIC.exe
Token: SeDebugPrivilege	1700	WMIC.exe
Token: SeSystemEnvironmentPrivilege	1700	WMIC.exe
Token: SeRemoteShutdownPrivilege	1700	WMIC.exe
Token: SeUndockPrivilege	1700	WMIC.exe
Token: SeManageVolumePrivilege	1700	WMIC.exe
Token: 33	1700	WMIC.exe
Token: 34	1700	WMIC.exe
Token: 35	1700	WMIC.exe
Token: SeIncreaseQuotaPrivilege	1700	WMIC.exe
Token: SeSecurityPrivilege	1700	WMIC.exe
Token: SeTakeOwnershipPrivilege	1700	WMIC.exe
Token: SeLoadDriverPrivilege	1700	WMIC.exe
Token: SeSystemProfilePrivilege	1700	WMIC.exe
Token: SeSystemtimePrivilege	1700	WMIC.exe
Token: SeProfSingleProcessPrivilege	1700	WMIC.exe
Token: SeIncBasePriorityPrivilege	1700	WMIC.exe
Token: SeCreatePagefilePrivilege	1700	WMIC.exe
Token: SeBackupPrivilege	1700	WMIC.exe
Token: SeRestorePrivilege	1700	WMIC.exe
Token: SeShutdownPrivilege	1700	WMIC.exe
Token: SeDebugPrivilege	1700	WMIC.exe
Token: SeSystemEnvironmentPrivilege	1700	WMIC.exe
Token: SeRemoteShutdownPrivilege	1700	WMIC.exe
Token: SeUndockPrivilege	1700	WMIC.exe
Token: SeManageVolumePrivilege	1700	WMIC.exe
Token: 33	1700	WMIC.exe
Token: 34	1700	WMIC.exe
Token: 35	1700	WMIC.exe
Token: SeBackupPrivilege	540	wbengine.exe
Token: SeRestorePrivilege	540	wbengine.exe
Token: SeSecurityPrivilege	540	wbengine.exe

Suspicious use of FindShellTrayWindow 3 IoCs

pid	Process
2556	7zFM.exe
2556	7zFM.exe
2288	NOTEPAD.EXE

Suspicious use of WriteProcessMemory 36 IoCs

description	pid	Process	procid_target
PID 1652 wrote to memory of 2556	1652	cmd.exe	29
PID 1652 wrote to memory of 2556	1652	cmd.exe	29
PID 1652 wrote to memory of 2556	1652	cmd.exe	29
PID 2556 wrote to memory of 2692	2556	7zFM.exe	30
PID 2556 wrote to memory of 2692	2556	7zFM.exe	30
PID 2556 wrote to memory of 2692	2556	7zFM.exe	30
PID 2692 wrote to memory of 2492	2692	baal.exe	31
PID 2692 wrote to memory of 2492	2692	baal.exe	31
PID 2692 wrote to memory of 2492	2692	baal.exe	31
PID 2492 wrote to memory of 1944	2492	svchost.exe	33
PID 2492 wrote to memory of 1944	2492	svchost.exe	33
PID 2492 wrote to memory of 1944	2492	svchost.exe	33
PID 1944 wrote to memory of 1644	1944	cmd.exe	35
PID 1944 wrote to memory of 1644	1944	cmd.exe	35
PID 1944 wrote to memory of 1644	1944	cmd.exe	35
PID 1944 wrote to memory of 1700	1944	cmd.exe	38
PID 1944 wrote to memory of 1700	1944	cmd.exe	38
PID 1944 wrote to memory of 1700	1944	cmd.exe	38
PID 2492 wrote to memory of 2080	2492	svchost.exe	40
PID 2492 wrote to memory of 2080	2492	svchost.exe	40
PID 2492 wrote to memory of 2080	2492	svchost.exe	40
PID 2080 wrote to memory of 2052	2080	cmd.exe	42
PID 2080 wrote to memory of 2052	2080	cmd.exe	42
PID 2080 wrote to memory of 2052	2080	cmd.exe	42
PID 2080 wrote to memory of 2868	2080	cmd.exe	43
PID 2080 wrote to memory of 2868	2080	cmd.exe	43
PID 2080 wrote to memory of 2868	2080	cmd.exe	43
PID 2492 wrote to memory of 2644	2492	svchost.exe	44
PID 2492 wrote to memory of 2644	2492	svchost.exe	44
PID 2492 wrote to memory of 2644	2492	svchost.exe	44
PID 2644 wrote to memory of 1256	2644	cmd.exe	46
PID 2644 wrote to memory of 1256	2644	cmd.exe	46
PID 2644 wrote to memory of 1256	2644	cmd.exe	46
PID 2492 wrote to memory of 2288	2492	svchost.exe	50
PID 2492 wrote to memory of 2288	2492	svchost.exe	50
PID 2492 wrote to memory of 2288	2492	svchost.exe	50

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:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\baal.rar
1⤵
- Suspicious use of WriteProcessMemory
PID:1652
- C:\Program Files\7-Zip\7zFM.exe
  "C:\Program Files\7-Zip\7zFM.exe" "C:\Users\Admin\AppData\Local\Temp\baal.rar"
  2⤵
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of WriteProcessMemory
  PID:2556
- - C:\Users\Admin\AppData\Local\Temp\7zOCF94F416\baal.exe
    "C:\Users\Admin\AppData\Local\Temp\7zOCF94F416\baal.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:2692
  - - C:\Users\Admin\AppData\Roaming\svchost.exe
      "C:\Users\Admin\AppData\Roaming\svchost.exe"
      4⤵
      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:2492
    - - C:\Windows\System32\cmd.exe
        
        "C:\Windows\System32\cmd.exe" /C vssadmin delete shadows /all /quiet & wmic shadowcopy delete
        5⤵
        Suspicious use of WriteProcessMemory
        
        PID:1944
      - C:\Windows\system32\vssadmin.exe
        
        vssadmin delete shadows /all /quiet
        6⤵
        Interacts with shadow copies
        
        PID:1644
      - C:\Windows\System32\Wbem\WMIC.exe
        
        wmic shadowcopy delete
        6⤵
        Suspicious use of AdjustPrivilegeToken
        
        PID:1700
    - - C:\Windows\System32\cmd.exe
        
        "C:\Windows\System32\cmd.exe" /C bcdedit /set {default} bootstatuspolicy ignoreallfailures & bcdedit /set {default} recoveryenabled no
        5⤵
        Suspicious use of WriteProcessMemory
        
        PID:2080
      - C:\Windows\system32\bcdedit.exe
        
        bcdedit /set {default} bootstatuspolicy ignoreallfailures
        6⤵
        Modifies boot configuration data using bcdedit
        
        PID:2052
      - C:\Windows\system32\bcdedit.exe
        
        bcdedit /set {default} recoveryenabled no
        6⤵
        Modifies boot configuration data using bcdedit
        
        PID:2868
    - - C:\Windows\System32\cmd.exe
        
        "C:\Windows\System32\cmd.exe" /C wbadmin delete catalog -quiet
        5⤵
        Suspicious use of WriteProcessMemory
        
        PID:2644
      - C:\Windows\system32\wbadmin.exe
        
        wbadmin delete catalog -quiet
        6⤵
        Deletes backup catalog
        
        PID:1256
    - - C:\Windows\system32\NOTEPAD.EXE
        
        "C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\AppData\Roaming\read_it.txt
        5⤵
        Opens file in notepad (likely ransom note)
        Suspicious use of FindShellTrayWindow
        
        PID:2288

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:1484

C:\Windows\system32\wbengine.exe
"C:\Windows\system32\wbengine.exe"
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:540

C:\Windows\System32\vdsldr.exe
C:\Windows\System32\vdsldr.exe -Embedding
1⤵
PID:1028

C:\Windows\System32\vds.exe
C:\Windows\System32\vds.exe
1⤵
PID:1460

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

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\Local\Temp\7zOCF94F416\baal.exe

Filesize
543KB

MD5
e892fe3dfffd3691693fa2d89653f027

SHA1
189b99c110a271ae76de95d2b34f82f405489caa

SHA256
9e27002c8d259b3a3ded2b6f8feead6ae84a2e19486fbfab9295c42fcfbabf6b

SHA512
e4026ab9fa9ecf1191d96b402ac78df6787c409842637b421524aaad891b801514bcccd1fbd75aeca73c91a1d210810e03ea7448be88569b446f950dd7b42272

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

Filesize
2KB

MD5
f4f3570c6a14541fff7e7384caa3ad17

SHA1
ec9ab70ca0434ad0632ac6906f7b385c55a4fb8e

SHA256
1855b0a4aba43a11ebc024b3a68b0fd07a72d1e98564a12289c09c325d6f4d1d

SHA512
77524aba70c8d5053dc2e16b721059df3b058637c93f8debd9c3edcdd10b6dcb945df86857bb7c977c72cad4057c3f07987d6ff3527e5e059dc5df4cd47a6170

Download Submit
memory/2492-41-0x0000000001280000-0x000000000130E000-memory.dmp

Filesize
568KB

Download
memory/2692-35-0x0000000000B60000-0x0000000000BEE000-memory.dmp

Filesize
568KB

Download