chaos | 96954af5f3a422d26951296adeb8d9a2cae1ada61f63ee1a2c884a4ef938cf87

Analysis

max time kernel
120s
max time network
121s
platform
windows7_x64
resource
win7-20231129-en
resource tags

arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
submitted
24-04-2024 18:02

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General

Target

2024-04-24_ee711be5ac7e4d382c21cb6cb3f9631b_chaos_destroyer_wannacry.exe
Size

23KB
MD5

ee711be5ac7e4d382c21cb6cb3f9631b
SHA1

df2ad2e13d1160a900e730eeec7adc6503891088
SHA256

96954af5f3a422d26951296adeb8d9a2cae1ada61f63ee1a2c884a4ef938cf87
SHA512

bbd714ecbe31a75dd6d661cbcc7926e5cf2b7e0858f3931dc8ddd42d7254849e1b9a942f9ccc1140bd9f376a0149f4d79f1ef2e21b5aa45173c6f87e53fc12e2
SSDEEP

384:H3MLWHn3kI3fmIOyERMpOsbW+ATLJIr91Crxbo9deU:zn3kIYy6Mpzi9Ir9SxboveU

Score

10^/10

chaos evasion ransomware spyware stealer

Malware Config

Extracted

Path

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

Family

chaos

Ransom Note

----> Chaos is multi language ransomware. Translate your note to any language <---- 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 Bitcoin Address: 3Gq3M3xz5dstUaCn7iLLxLRTBMs3BLKwPn And If you try to ignore or just wipe your PC, I have all your passwords so you are fucked.

Wallets

3Gq3M3xz5dstUaCn7iLLxLRTBMs3BLKwPn

Signatures

Chaos
Ransomware family first seen in June 2021.
ransomware chaos

Chaos Ransomware 3 IoCs

resource	yara_rule
behavioral1/memory/2380-0-0x0000000001230000-0x000000000123C000-memory.dmp	family_chaos
behavioral1/files/0x0009000000014120-5.dat	family_chaos
behavioral1/memory/2352-7-0x0000000000FD0000-0x0000000000FDC000-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

Detects command variations typically used by ransomware 3 IoCs

resource	yara_rule
behavioral1/memory/2380-0-0x0000000001230000-0x000000000123C000-memory.dmp	INDICATOR_SUSPICIOUS_GENRansomware
behavioral1/files/0x0009000000014120-5.dat	INDICATOR_SUSPICIOUS_GENRansomware
behavioral1/memory/2352-7-0x0000000000FD0000-0x0000000000FDC000-memory.dmp	INDICATOR_SUSPICIOUS_GENRansomware

Modifies boot configuration data using bcdedit 1 TTPs 2 IoCs

ransomware evasion

Inhibit System Recovery

T1490

pid	Process
1440	bcdedit.exe
1764	bcdedit.exe

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
2964	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 1 IoCs

pid	Process
2352	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\Searches\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\Desktop\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\Contacts\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\Start Menu\Programs\Accessories\Desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\Downloads\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\Favorites\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\Videos\desktop.ini	svchost.exe
File opened for modification	C:\Users\Public\Videos\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\Maintenance\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\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\Public\Music\desktop.ini	svchost.exe
File opened for modification	C:\Users\Public\Desktop\desktop.ini	svchost.exe
File opened for modification	F:\$RECYCLE.BIN\S-1-5-21-3627615824-4061627003-3019543961-1000\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\Programs\Accessories\Accessibility\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\Pictures\Sample Pictures\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\Admin\AppData\Roaming\Microsoft\Windows\Libraries\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\Public\Documents\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\Saved Games\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\Public\Pictures\desktop.ini	svchost.exe
File opened for modification	C:\Users\Public\Music\Sample Music\desktop.ini	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
2524	vssadmin.exe

Opens file in notepad (likely ransom note) 1 IoCs

ransomware

pid	Process
584	NOTEPAD.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
2352	svchost.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
2380	2024-04-24_ee711be5ac7e4d382c21cb6cb3f9631b_chaos_destroyer_wannacry.exe
2380	2024-04-24_ee711be5ac7e4d382c21cb6cb3f9631b_chaos_destroyer_wannacry.exe
2352	svchost.exe
2352	svchost.exe
2352	svchost.exe
2352	svchost.exe
2352	svchost.exe
2352	svchost.exe

Suspicious use of AdjustPrivilegeToken 48 IoCs

description	pid	Process
Token: SeDebugPrivilege	2380	2024-04-24_ee711be5ac7e4d382c21cb6cb3f9631b_chaos_destroyer_wannacry.exe
Token: SeDebugPrivilege	2352	svchost.exe
Token: SeBackupPrivilege	2952	vssvc.exe
Token: SeRestorePrivilege	2952	vssvc.exe
Token: SeAuditPrivilege	2952	vssvc.exe
Token: SeIncreaseQuotaPrivilege	2764	WMIC.exe
Token: SeSecurityPrivilege	2764	WMIC.exe
Token: SeTakeOwnershipPrivilege	2764	WMIC.exe
Token: SeLoadDriverPrivilege	2764	WMIC.exe
Token: SeSystemProfilePrivilege	2764	WMIC.exe
Token: SeSystemtimePrivilege	2764	WMIC.exe
Token: SeProfSingleProcessPrivilege	2764	WMIC.exe
Token: SeIncBasePriorityPrivilege	2764	WMIC.exe
Token: SeCreatePagefilePrivilege	2764	WMIC.exe
Token: SeBackupPrivilege	2764	WMIC.exe
Token: SeRestorePrivilege	2764	WMIC.exe
Token: SeShutdownPrivilege	2764	WMIC.exe
Token: SeDebugPrivilege	2764	WMIC.exe
Token: SeSystemEnvironmentPrivilege	2764	WMIC.exe
Token: SeRemoteShutdownPrivilege	2764	WMIC.exe
Token: SeUndockPrivilege	2764	WMIC.exe
Token: SeManageVolumePrivilege	2764	WMIC.exe
Token: 33	2764	WMIC.exe
Token: 34	2764	WMIC.exe
Token: 35	2764	WMIC.exe
Token: SeIncreaseQuotaPrivilege	2764	WMIC.exe
Token: SeSecurityPrivilege	2764	WMIC.exe
Token: SeTakeOwnershipPrivilege	2764	WMIC.exe
Token: SeLoadDriverPrivilege	2764	WMIC.exe
Token: SeSystemProfilePrivilege	2764	WMIC.exe
Token: SeSystemtimePrivilege	2764	WMIC.exe
Token: SeProfSingleProcessPrivilege	2764	WMIC.exe
Token: SeIncBasePriorityPrivilege	2764	WMIC.exe
Token: SeCreatePagefilePrivilege	2764	WMIC.exe
Token: SeBackupPrivilege	2764	WMIC.exe
Token: SeRestorePrivilege	2764	WMIC.exe
Token: SeShutdownPrivilege	2764	WMIC.exe
Token: SeDebugPrivilege	2764	WMIC.exe
Token: SeSystemEnvironmentPrivilege	2764	WMIC.exe
Token: SeRemoteShutdownPrivilege	2764	WMIC.exe
Token: SeUndockPrivilege	2764	WMIC.exe
Token: SeManageVolumePrivilege	2764	WMIC.exe
Token: 33	2764	WMIC.exe
Token: 34	2764	WMIC.exe
Token: 35	2764	WMIC.exe
Token: SeBackupPrivilege	2024	wbengine.exe
Token: SeRestorePrivilege	2024	wbengine.exe
Token: SeSecurityPrivilege	2024	wbengine.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2380 wrote to memory of 2352	2380	2024-04-24_ee711be5ac7e4d382c21cb6cb3f9631b_chaos_destroyer_wannacry.exe	28
PID 2380 wrote to memory of 2352	2380	2024-04-24_ee711be5ac7e4d382c21cb6cb3f9631b_chaos_destroyer_wannacry.exe	28
PID 2380 wrote to memory of 2352	2380	2024-04-24_ee711be5ac7e4d382c21cb6cb3f9631b_chaos_destroyer_wannacry.exe	28
PID 2352 wrote to memory of 2464	2352	svchost.exe	29
PID 2352 wrote to memory of 2464	2352	svchost.exe	29
PID 2352 wrote to memory of 2464	2352	svchost.exe	29
PID 2464 wrote to memory of 2524	2464	cmd.exe	31
PID 2464 wrote to memory of 2524	2464	cmd.exe	31
PID 2464 wrote to memory of 2524	2464	cmd.exe	31
PID 2464 wrote to memory of 2764	2464	cmd.exe	35
PID 2464 wrote to memory of 2764	2464	cmd.exe	35
PID 2464 wrote to memory of 2764	2464	cmd.exe	35
PID 2352 wrote to memory of 2784	2352	svchost.exe	37
PID 2352 wrote to memory of 2784	2352	svchost.exe	37
PID 2352 wrote to memory of 2784	2352	svchost.exe	37
PID 2784 wrote to memory of 1440	2784	cmd.exe	39
PID 2784 wrote to memory of 1440	2784	cmd.exe	39
PID 2784 wrote to memory of 1440	2784	cmd.exe	39
PID 2784 wrote to memory of 1764	2784	cmd.exe	40
PID 2784 wrote to memory of 1764	2784	cmd.exe	40
PID 2784 wrote to memory of 1764	2784	cmd.exe	40
PID 2352 wrote to memory of 3048	2352	svchost.exe	41
PID 2352 wrote to memory of 3048	2352	svchost.exe	41
PID 2352 wrote to memory of 3048	2352	svchost.exe	41
PID 3048 wrote to memory of 2964	3048	cmd.exe	43
PID 3048 wrote to memory of 2964	3048	cmd.exe	43
PID 3048 wrote to memory of 2964	3048	cmd.exe	43
PID 2352 wrote to memory of 584	2352	svchost.exe	47
PID 2352 wrote to memory of 584	2352	svchost.exe	47
PID 2352 wrote to memory of 584	2352	svchost.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\2024-04-24_ee711be5ac7e4d382c21cb6cb3f9631b_chaos_destroyer_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-24_ee711be5ac7e4d382c21cb6cb3f9631b_chaos_destroyer_wannacry.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2380
- 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)
  - Suspicious behavior: AddClipboardFormatListener
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2352
- - 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:2464
  - - C:\Windows\system32\vssadmin.exe
      vssadmin delete shadows /all /quiet
      4⤵
      Interacts with shadow copies
      PID:2524
  - - C:\Windows\System32\Wbem\WMIC.exe
      wmic shadowcopy delete
      4⤵
      Suspicious use of AdjustPrivilegeToken
      PID:2764
- - 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:2784
  - - C:\Windows\system32\bcdedit.exe
      bcdedit /set {default} bootstatuspolicy ignoreallfailures
      4⤵
      Modifies boot configuration data using bcdedit
      PID:1440
  - - C:\Windows\system32\bcdedit.exe
      bcdedit /set {default} recoveryenabled no
      4⤵
      Modifies boot configuration data using bcdedit
      PID:1764
- - C:\Windows\System32\cmd.exe
    "C:\Windows\System32\cmd.exe" /C wbadmin delete catalog -quiet
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:3048
  - - C:\Windows\system32\wbadmin.exe
      wbadmin delete catalog -quiet
      4⤵
      Deletes backup catalog
      PID:2964
- - 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:584

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:2952

C:\Windows\system32\wbengine.exe
"C:\Windows\system32\wbengine.exe"
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:2024

C:\Windows\System32\vdsldr.exe
C:\Windows\System32\vdsldr.exe -Embedding
1⤵
PID:1684

C:\Windows\System32\vds.exe
C:\Windows\System32\vds.exe
1⤵
PID:324

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

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\Roaming\svchost.exe

Filesize
23KB

MD5
ee711be5ac7e4d382c21cb6cb3f9631b

SHA1
df2ad2e13d1160a900e730eeec7adc6503891088

SHA256
96954af5f3a422d26951296adeb8d9a2cae1ada61f63ee1a2c884a4ef938cf87

SHA512
bbd714ecbe31a75dd6d661cbcc7926e5cf2b7e0858f3931dc8ddd42d7254849e1b9a942f9ccc1140bd9f376a0149f4d79f1ef2e21b5aa45173c6f87e53fc12e2

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

Filesize
1KB

MD5
b1a5c367bb7f0c30db6a506a3e3a2db8

SHA1
54b0d78890b96de58b22b718e04acd416bfb2f6d

SHA256
78e0b22120fa86f094a470a6b9f0ee786aa8dd3f683f172dc2a80a7194e41ba0

SHA512
b910fc7b20cf9c3b85548b1e212c4c0053014d6f4524787488052ec28dbebdc857d94b2fe3ca38efbfeab1bca73a9e6a345fc3578224410c757293e44b4d96a7

Download Submit
memory/2352-7-0x0000000000FD0000-0x0000000000FDC000-memory.dmp

Filesize
48KB

Download
memory/2352-9-0x000007FEF5C90000-0x000007FEF667C000-memory.dmp

Filesize
9.9MB

Download
memory/2352-74-0x0000000000AF0000-0x0000000000B70000-memory.dmp

Filesize
512KB

Download
memory/2352-76-0x000007FEF5C90000-0x000007FEF667C000-memory.dmp

Filesize
9.9MB

Download
memory/2352-77-0x0000000000AF0000-0x0000000000B70000-memory.dmp

Filesize
512KB

Download
memory/2380-0-0x0000000001230000-0x000000000123C000-memory.dmp

Filesize
48KB

Download
memory/2380-1-0x000007FEF5C90000-0x000007FEF667C000-memory.dmp

Filesize
9.9MB

Download
memory/2380-8-0x000007FEF5C90000-0x000007FEF667C000-memory.dmp

Filesize
9.9MB

Download