chaos | f813c628d489e6da2a57ac1ef6c4152382f810ffe3e19ac2c296c7a26b5a6a99

Analysis

max time kernel
121s
max time network
125s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
25-03-2024 05:38

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General

Target

2024-03-25_57099c6158c0aa97503a9c27243352a9_wannacry.exe
Size

291KB
MD5

57099c6158c0aa97503a9c27243352a9
SHA1

845d6af54e4adfefb4d41c8163fd267149a8eede
SHA256

f813c628d489e6da2a57ac1ef6c4152382f810ffe3e19ac2c296c7a26b5a6a99
SHA512

5c912fe51e9d0d5b5e2c8d50933dc82b7fdaed2f4c12b83c67b0dc8d50f36af9d0a00ff060c1528dd08f6c6a3f6f7c42d674b7a4d3e7e98f419f1352c2afe200
SSDEEP

6144:sRr9JniaNck2r4EARGbZT5q6IAMun3BjuApIVFyAyABZn14UcfV426wsyijk:s9iaWk2XARw5qFAMun8ApIVFyLAY

Score

10^/10

chaos evasion ransomware spyware stealer

Malware Config

Signatures

Chaos
Ransomware family first seen in June 2021.
ransomware chaos

Chaos Ransomware 4 IoCs

resource	yara_rule
behavioral1/memory/2240-0-0x0000000000D10000-0x0000000000D60000-memory.dmp	family_chaos
behavioral1/files/0x0009000000016d24-5.dat	family_chaos
behavioral1/memory/2332-7-0x0000000000840000-0x0000000000890000-memory.dmp	family_chaos
behavioral1/memory/2332-11-0x000000001ADF0000-0x000000001AE70000-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 4 IoCs

resource	yara_rule
behavioral1/memory/2240-0-0x0000000000D10000-0x0000000000D60000-memory.dmp	INDICATOR_SUSPICIOUS_GENRansomware
behavioral1/files/0x0009000000016d24-5.dat	INDICATOR_SUSPICIOUS_GENRansomware
behavioral1/memory/2332-7-0x0000000000840000-0x0000000000890000-memory.dmp	INDICATOR_SUSPICIOUS_GENRansomware
behavioral1/memory/2332-11-0x000000001ADF0000-0x000000001AE70000-memory.dmp	INDICATOR_SUSPICIOUS_GENRansomware

Modifies boot configuration data using bcdedit 1 TTPs 2 IoCs

ransomware evasion

Inhibit System Recovery

T1490

pid	Process
896	bcdedit.exe
2160	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
2448	wbadmin.exe

Drops startup file 3 IoCs

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

Executes dropped EXE 1 IoCs

pid	Process
2332	SatanCD.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\Favorites\desktop.ini	SatanCD.exe
File opened for modification	C:\Users\Admin\Videos\desktop.ini	SatanCD.exe
File opened for modification	C:\Users\Public\Music\desktop.ini	SatanCD.exe
File opened for modification	C:\Users\Public\Videos\Sample Videos\desktop.ini	SatanCD.exe
File opened for modification	C:\Users\Admin\Links\desktop.ini	SatanCD.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Administrative Tools\desktop.ini	SatanCD.exe
File opened for modification	C:\Users\Public\Documents\desktop.ini	SatanCD.exe
File opened for modification	C:\Users\Admin\Saved Games\desktop.ini	SatanCD.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Internet Explorer\Quick Launch\desktop.ini	SatanCD.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Libraries\desktop.ini	SatanCD.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Accessories\Desktop.ini	SatanCD.exe
File opened for modification	C:\Users\Public\Pictures\desktop.ini	SatanCD.exe
File opened for modification	C:\Users\Admin\Desktop\desktop.ini	SatanCD.exe
File opened for modification	C:\Users\Admin\Music\desktop.ini	SatanCD.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\SendTo\Desktop.ini	SatanCD.exe
File opened for modification	F:\$RECYCLE.BIN\S-1-5-21-330940541-141609230-1670313778-1000\desktop.ini	SatanCD.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Internet Explorer\Quick Launch\User Pinned\TaskBar\desktop.ini	SatanCD.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Accessories\System Tools\Desktop.ini	SatanCD.exe
File opened for modification	C:\Users\Admin\Contacts\desktop.ini	SatanCD.exe
File opened for modification	C:\Users\Admin\Documents\desktop.ini	SatanCD.exe
File opened for modification	C:\Users\Admin\Favorites\Links\desktop.ini	SatanCD.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Accessories\Accessibility\Desktop.ini	SatanCD.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Maintenance\Desktop.ini	SatanCD.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\desktop.ini	SatanCD.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\desktop.ini	SatanCD.exe
File opened for modification	C:\Users\Public\Videos\desktop.ini	SatanCD.exe
File opened for modification	C:\Users\Public\Desktop\desktop.ini	SatanCD.exe
File opened for modification	C:\Users\Admin\Downloads\desktop.ini	SatanCD.exe
File opened for modification	C:\Users\Admin\Pictures\desktop.ini	SatanCD.exe
File opened for modification	C:\Users\Admin\Favorites\Links for United States\desktop.ini	SatanCD.exe
File opened for modification	C:\Users\Admin\Searches\desktop.ini	SatanCD.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\desktop.ini	SatanCD.exe
File opened for modification	C:\Users\Public\Pictures\Sample Pictures\desktop.ini	SatanCD.exe
File opened for modification	C:\Users\Public\Music\Sample Music\desktop.ini	SatanCD.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-1-5-21-330940541-141609230-1670313778-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\AppData\\Local\\Temp\\xtgbdjtlu.jpg"	SatanCD.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
2688	vssadmin.exe

Opens file in notepad (likely ransom note) 1 IoCs

ransomware

pid	Process
952	NOTEPAD.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
2332	SatanCD.exe

Suspicious behavior: EnumeratesProcesses 9 IoCs

pid	Process
2240	2024-03-25_57099c6158c0aa97503a9c27243352a9_wannacry.exe
2240	2024-03-25_57099c6158c0aa97503a9c27243352a9_wannacry.exe
2240	2024-03-25_57099c6158c0aa97503a9c27243352a9_wannacry.exe
2332	SatanCD.exe
2332	SatanCD.exe
2332	SatanCD.exe
2332	SatanCD.exe
2332	SatanCD.exe
2332	SatanCD.exe

Suspicious use of AdjustPrivilegeToken 48 IoCs

description	pid	Process
Token: SeDebugPrivilege	2240	2024-03-25_57099c6158c0aa97503a9c27243352a9_wannacry.exe
Token: SeDebugPrivilege	2332	SatanCD.exe
Token: SeBackupPrivilege	2708	vssvc.exe
Token: SeRestorePrivilege	2708	vssvc.exe
Token: SeAuditPrivilege	2708	vssvc.exe
Token: SeIncreaseQuotaPrivilege	916	WMIC.exe
Token: SeSecurityPrivilege	916	WMIC.exe
Token: SeTakeOwnershipPrivilege	916	WMIC.exe
Token: SeLoadDriverPrivilege	916	WMIC.exe
Token: SeSystemProfilePrivilege	916	WMIC.exe
Token: SeSystemtimePrivilege	916	WMIC.exe
Token: SeProfSingleProcessPrivilege	916	WMIC.exe
Token: SeIncBasePriorityPrivilege	916	WMIC.exe
Token: SeCreatePagefilePrivilege	916	WMIC.exe
Token: SeBackupPrivilege	916	WMIC.exe
Token: SeRestorePrivilege	916	WMIC.exe
Token: SeShutdownPrivilege	916	WMIC.exe
Token: SeDebugPrivilege	916	WMIC.exe
Token: SeSystemEnvironmentPrivilege	916	WMIC.exe
Token: SeRemoteShutdownPrivilege	916	WMIC.exe
Token: SeUndockPrivilege	916	WMIC.exe
Token: SeManageVolumePrivilege	916	WMIC.exe
Token: 33	916	WMIC.exe
Token: 34	916	WMIC.exe
Token: 35	916	WMIC.exe
Token: SeIncreaseQuotaPrivilege	916	WMIC.exe
Token: SeSecurityPrivilege	916	WMIC.exe
Token: SeTakeOwnershipPrivilege	916	WMIC.exe
Token: SeLoadDriverPrivilege	916	WMIC.exe
Token: SeSystemProfilePrivilege	916	WMIC.exe
Token: SeSystemtimePrivilege	916	WMIC.exe
Token: SeProfSingleProcessPrivilege	916	WMIC.exe
Token: SeIncBasePriorityPrivilege	916	WMIC.exe
Token: SeCreatePagefilePrivilege	916	WMIC.exe
Token: SeBackupPrivilege	916	WMIC.exe
Token: SeRestorePrivilege	916	WMIC.exe
Token: SeShutdownPrivilege	916	WMIC.exe
Token: SeDebugPrivilege	916	WMIC.exe
Token: SeSystemEnvironmentPrivilege	916	WMIC.exe
Token: SeRemoteShutdownPrivilege	916	WMIC.exe
Token: SeUndockPrivilege	916	WMIC.exe
Token: SeManageVolumePrivilege	916	WMIC.exe
Token: 33	916	WMIC.exe
Token: 34	916	WMIC.exe
Token: 35	916	WMIC.exe
Token: SeBackupPrivilege	2068	wbengine.exe
Token: SeRestorePrivilege	2068	wbengine.exe
Token: SeSecurityPrivilege	2068	wbengine.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2240 wrote to memory of 2332	2240	2024-03-25_57099c6158c0aa97503a9c27243352a9_wannacry.exe	30
PID 2240 wrote to memory of 2332	2240	2024-03-25_57099c6158c0aa97503a9c27243352a9_wannacry.exe	30
PID 2240 wrote to memory of 2332	2240	2024-03-25_57099c6158c0aa97503a9c27243352a9_wannacry.exe	30
PID 2332 wrote to memory of 2624	2332	SatanCD.exe	32
PID 2332 wrote to memory of 2624	2332	SatanCD.exe	32
PID 2332 wrote to memory of 2624	2332	SatanCD.exe	32
PID 2624 wrote to memory of 2688	2624	cmd.exe	34
PID 2624 wrote to memory of 2688	2624	cmd.exe	34
PID 2624 wrote to memory of 2688	2624	cmd.exe	34
PID 2624 wrote to memory of 916	2624	cmd.exe	38
PID 2624 wrote to memory of 916	2624	cmd.exe	38
PID 2624 wrote to memory of 916	2624	cmd.exe	38
PID 2332 wrote to memory of 1044	2332	SatanCD.exe	40
PID 2332 wrote to memory of 1044	2332	SatanCD.exe	40
PID 2332 wrote to memory of 1044	2332	SatanCD.exe	40
PID 1044 wrote to memory of 896	1044	cmd.exe	42
PID 1044 wrote to memory of 896	1044	cmd.exe	42
PID 1044 wrote to memory of 896	1044	cmd.exe	42
PID 1044 wrote to memory of 2160	1044	cmd.exe	43
PID 1044 wrote to memory of 2160	1044	cmd.exe	43
PID 1044 wrote to memory of 2160	1044	cmd.exe	43
PID 2332 wrote to memory of 1452	2332	SatanCD.exe	44
PID 2332 wrote to memory of 1452	2332	SatanCD.exe	44
PID 2332 wrote to memory of 1452	2332	SatanCD.exe	44
PID 1452 wrote to memory of 2448	1452	cmd.exe	46
PID 1452 wrote to memory of 2448	1452	cmd.exe	46
PID 1452 wrote to memory of 2448	1452	cmd.exe	46
PID 2332 wrote to memory of 952	2332	SatanCD.exe	50
PID 2332 wrote to memory of 952	2332	SatanCD.exe	50
PID 2332 wrote to memory of 952	2332	SatanCD.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:\Users\Admin\AppData\Local\Temp\2024-03-25_57099c6158c0aa97503a9c27243352a9_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-25_57099c6158c0aa97503a9c27243352a9_wannacry.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2240
- C:\Users\Admin\AppData\Roaming\SatanCD.exe
  "C:\Users\Admin\AppData\Roaming\SatanCD.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:2332
- - 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:2624
  - - C:\Windows\system32\vssadmin.exe
      vssadmin delete shadows /all /quiet
      4⤵
      Interacts with shadow copies
      PID:2688
  - - C:\Windows\System32\Wbem\WMIC.exe
      wmic shadowcopy delete
      4⤵
      Suspicious use of AdjustPrivilegeToken
      PID:916
- - 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:1044
  - - C:\Windows\system32\bcdedit.exe
      bcdedit /set {default} bootstatuspolicy ignoreallfailures
      4⤵
      Modifies boot configuration data using bcdedit
      PID:896
  - - 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:1452
  - - C:\Windows\system32\wbadmin.exe
      wbadmin delete catalog -quiet
      4⤵
      Deletes backup catalog
      PID:2448
- - 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:952

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:2708

C:\Windows\system32\wbengine.exe
"C:\Windows\system32\wbengine.exe"
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:2068

C:\Windows\System32\vdsldr.exe
C:\Windows\System32\vdsldr.exe -Embedding
1⤵
PID:2064

C:\Windows\System32\vds.exe
C:\Windows\System32\vds.exe
1⤵
PID:2272

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\Roaming\SatanCD.exe

Filesize
291KB

MD5
57099c6158c0aa97503a9c27243352a9

SHA1
845d6af54e4adfefb4d41c8163fd267149a8eede

SHA256
f813c628d489e6da2a57ac1ef6c4152382f810ffe3e19ac2c296c7a26b5a6a99

SHA512
5c912fe51e9d0d5b5e2c8d50933dc82b7fdaed2f4c12b83c67b0dc8d50f36af9d0a00ff060c1528dd08f6c6a3f6f7c42d674b7a4d3e7e98f419f1352c2afe200

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

Filesize
3KB

MD5
bfd6e91030d6beb16abc89281846bb72

SHA1
1b508a68c2d0fb9a58253e6e461acd033fb6ac95

SHA256
3a01b0fc15adfcefe454da22414399f8a8c504887dce78c7d24988448d1c9817

SHA512
4c528a32b498e2827ea40cea90a4a6a8cf25466f0eb0ea62543e99f5eaf3dab0195dc6d07a5c570fd7c86bf720066ab144c2f222b813050ed3cccab9880e23f1

Download Submit
memory/2240-0-0x0000000000D10000-0x0000000000D60000-memory.dmp

Filesize
320KB

Download
memory/2240-1-0x000007FEF64E0000-0x000007FEF6ECC000-memory.dmp

Filesize
9.9MB

Download
memory/2240-8-0x000007FEF64E0000-0x000007FEF6ECC000-memory.dmp

Filesize
9.9MB

Download
memory/2332-7-0x0000000000840000-0x0000000000890000-memory.dmp

Filesize
320KB

Download
memory/2332-9-0x000007FEF64E0000-0x000007FEF6ECC000-memory.dmp

Filesize
9.9MB

Download
memory/2332-11-0x000000001ADF0000-0x000000001AE70000-memory.dmp

Filesize
512KB

Download
memory/2332-477-0x000007FEF64E0000-0x000007FEF6ECC000-memory.dmp

Filesize
9.9MB

Download
memory/2332-478-0x000000001ADF0000-0x000000001AE70000-memory.dmp

Filesize
512KB

Download