chaos | 0d683d2e4fa69e5a5780ffcec285131df7d3467d0f5483ad7d1e918160817886

Analysis

max time kernel
149s
max time network
147s
platform
windows7_x64
resource
win7-en-20210920
submitted
21-09-2021 08:30

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General

Target

0d683d2e4fa69e5a5780ffcec285131df7d3467d0f5483ad7d1e918160817886.exe
Size

2.2MB
MD5

5b61e933fb4b526837a23637ff6bef7e
SHA1

34056a337b596b2bf2682df0ec1247b0ad14a972
SHA256

0d683d2e4fa69e5a5780ffcec285131df7d3467d0f5483ad7d1e918160817886
SHA512

2f7ec6cfac3a671334e900d59dd8cd7e66d8ce8ff61e71ac47d805f17e7ccc0ad2066e8c477a0597d318a6802b1a9e7fdcf1890ac08ba45b0cb8cfc938498ea0

Score

10^/10

chaos evasion ransomware spyware stealer

Malware Config

Signatures

Chaos
Ransomware family first seen in June 2021.
ransomware chaos

Chaos Ransomware 2 IoCs

resource	yara_rule
behavioral1/files/0x00070000000121e5-56.dat	family_chaos
behavioral1/files/0x00070000000121e5-57.dat	family_chaos

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

File Deletion
T1107

Inhibit System Recovery
T1490

Modifies boot configuration data using bcdedit 1 TTPs 2 IoCs

ransomware evasion

Inhibit System Recovery

T1490

pid	Process
1052	bcdedit.exe
852	bcdedit.exe

Deletes backup catalog 3 TTPs 1 IoCs

Uses wbadmin.exe to inhibit system recovery.

ransomware

Command-Line Interface

T1059

File Deletion

T1107

Inhibit System Recovery

T1490

pid	Process
548	wbadmin.exe

Executes dropped EXE 1 IoCs

pid	Process
756	getbinomo.exe

Modifies extensions of user files 2 IoCs

Ransomware generally changes the extension on encrypted files.

ransomware

description	ioc	Process
File renamed	C:\Users\Admin\Pictures\ExitRestore.png => C:\Users\Admin\Pictures\ExitRestore.png.terkunci	getbinomo.exe
File renamed	C:\Users\Admin\Pictures\InvokeGrant.raw => C:\Users\Admin\Pictures\InvokeGrant.raw.terkunci	getbinomo.exe

Drops startup file 3 IoCs

description	ioc	Process
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\desktop.ini	getbinomo.exe
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\read_me.txt	getbinomo.exe
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\getbinomo.url	getbinomo.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
T1081

Drops desktop.ini file(s) 33 IoCs

description	ioc	Process
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Libraries\desktop.ini	getbinomo.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Accessories\System Tools\Desktop.ini	getbinomo.exe
File opened for modification	C:\Users\Admin\Pictures\desktop.ini	getbinomo.exe
File opened for modification	C:\Users\Admin\Favorites\desktop.ini	getbinomo.exe
File opened for modification	C:\Users\Admin\Saved Games\desktop.ini	getbinomo.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\desktop.ini	getbinomo.exe
File opened for modification	C:\Users\Public\Pictures\Sample Pictures\desktop.ini	getbinomo.exe
File opened for modification	C:\Users\Admin\Desktop\desktop.ini	getbinomo.exe
File opened for modification	C:\Users\Admin\Documents\desktop.ini	getbinomo.exe
File opened for modification	C:\Users\Admin\Favorites\Links for United States\desktop.ini	getbinomo.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Accessories\Desktop.ini	getbinomo.exe
File opened for modification	C:\Users\Public\Music\desktop.ini	getbinomo.exe
File opened for modification	C:\Users\Public\Music\Sample Music\desktop.ini	getbinomo.exe
File opened for modification	C:\Users\Public\Videos\desktop.ini	getbinomo.exe
File opened for modification	C:\Users\Admin\Downloads\desktop.ini	getbinomo.exe
File opened for modification	C:\Users\Admin\Favorites\Links\desktop.ini	getbinomo.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Maintenance\Desktop.ini	getbinomo.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Internet Explorer\Quick Launch\User Pinned\TaskBar\desktop.ini	getbinomo.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\desktop.ini	getbinomo.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\SendTo\Desktop.ini	getbinomo.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Administrative Tools\desktop.ini	getbinomo.exe
File opened for modification	C:\Users\Public\Pictures\desktop.ini	getbinomo.exe
File opened for modification	C:\Users\Admin\Music\desktop.ini	getbinomo.exe
File opened for modification	C:\Users\Admin\Searches\desktop.ini	getbinomo.exe
File opened for modification	C:\Users\Admin\Links\desktop.ini	getbinomo.exe
File opened for modification	C:\Users\Public\Videos\Sample Videos\desktop.ini	getbinomo.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Internet Explorer\Quick Launch\desktop.ini	getbinomo.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\desktop.ini	getbinomo.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Accessories\Accessibility\Desktop.ini	getbinomo.exe
File opened for modification	C:\Users\Public\Documents\desktop.ini	getbinomo.exe
File opened for modification	C:\Users\Public\Desktop\desktop.ini	getbinomo.exe
File opened for modification	C:\Users\Admin\Contacts\desktop.ini	getbinomo.exe
File opened for modification	C:\Users\Admin\Videos\desktop.ini	getbinomo.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-1-5-21-3456797065-1076791440-4146276586-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\AppData\\Local\\Temp\\o48niymyd.jpg"	getbinomo.exe

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

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

T1107

Inhibit System Recovery

T1490

pid	Process
1820	vssadmin.exe

Opens file in notepad (likely ransom note) 1 IoCs

ransomware

pid	Process
208	NOTEPAD.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
756	getbinomo.exe

Suspicious behavior: EnumeratesProcesses 7 IoCs

pid	Process
1432	0d683d2e4fa69e5a5780ffcec285131df7d3467d0f5483ad7d1e918160817886.exe
1432	0d683d2e4fa69e5a5780ffcec285131df7d3467d0f5483ad7d1e918160817886.exe
1432	0d683d2e4fa69e5a5780ffcec285131df7d3467d0f5483ad7d1e918160817886.exe
756	getbinomo.exe
756	getbinomo.exe
756	getbinomo.exe
756	getbinomo.exe

Suspicious use of AdjustPrivilegeToken 48 IoCs

description	pid	Process
Token: SeDebugPrivilege	1432	0d683d2e4fa69e5a5780ffcec285131df7d3467d0f5483ad7d1e918160817886.exe
Token: SeDebugPrivilege	756	getbinomo.exe
Token: SeBackupPrivilege	1124	vssvc.exe
Token: SeRestorePrivilege	1124	vssvc.exe
Token: SeAuditPrivilege	1124	vssvc.exe
Token: SeIncreaseQuotaPrivilege	1664	WMIC.exe
Token: SeSecurityPrivilege	1664	WMIC.exe
Token: SeTakeOwnershipPrivilege	1664	WMIC.exe
Token: SeLoadDriverPrivilege	1664	WMIC.exe
Token: SeSystemProfilePrivilege	1664	WMIC.exe
Token: SeSystemtimePrivilege	1664	WMIC.exe
Token: SeProfSingleProcessPrivilege	1664	WMIC.exe
Token: SeIncBasePriorityPrivilege	1664	WMIC.exe
Token: SeCreatePagefilePrivilege	1664	WMIC.exe
Token: SeBackupPrivilege	1664	WMIC.exe
Token: SeRestorePrivilege	1664	WMIC.exe
Token: SeShutdownPrivilege	1664	WMIC.exe
Token: SeDebugPrivilege	1664	WMIC.exe
Token: SeSystemEnvironmentPrivilege	1664	WMIC.exe
Token: SeRemoteShutdownPrivilege	1664	WMIC.exe
Token: SeUndockPrivilege	1664	WMIC.exe
Token: SeManageVolumePrivilege	1664	WMIC.exe
Token: 33	1664	WMIC.exe
Token: 34	1664	WMIC.exe
Token: 35	1664	WMIC.exe
Token: SeIncreaseQuotaPrivilege	1664	WMIC.exe
Token: SeSecurityPrivilege	1664	WMIC.exe
Token: SeTakeOwnershipPrivilege	1664	WMIC.exe
Token: SeLoadDriverPrivilege	1664	WMIC.exe
Token: SeSystemProfilePrivilege	1664	WMIC.exe
Token: SeSystemtimePrivilege	1664	WMIC.exe
Token: SeProfSingleProcessPrivilege	1664	WMIC.exe
Token: SeIncBasePriorityPrivilege	1664	WMIC.exe
Token: SeCreatePagefilePrivilege	1664	WMIC.exe
Token: SeBackupPrivilege	1664	WMIC.exe
Token: SeRestorePrivilege	1664	WMIC.exe
Token: SeShutdownPrivilege	1664	WMIC.exe
Token: SeDebugPrivilege	1664	WMIC.exe
Token: SeSystemEnvironmentPrivilege	1664	WMIC.exe
Token: SeRemoteShutdownPrivilege	1664	WMIC.exe
Token: SeUndockPrivilege	1664	WMIC.exe
Token: SeManageVolumePrivilege	1664	WMIC.exe
Token: 33	1664	WMIC.exe
Token: 34	1664	WMIC.exe
Token: 35	1664	WMIC.exe
Token: SeBackupPrivilege	1700	wbengine.exe
Token: SeRestorePrivilege	1700	wbengine.exe
Token: SeSecurityPrivilege	1700	wbengine.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 1432 wrote to memory of 756	1432	0d683d2e4fa69e5a5780ffcec285131df7d3467d0f5483ad7d1e918160817886.exe	27
PID 1432 wrote to memory of 756	1432	0d683d2e4fa69e5a5780ffcec285131df7d3467d0f5483ad7d1e918160817886.exe	27
PID 1432 wrote to memory of 756	1432	0d683d2e4fa69e5a5780ffcec285131df7d3467d0f5483ad7d1e918160817886.exe	27
PID 756 wrote to memory of 564	756	getbinomo.exe	29
PID 756 wrote to memory of 564	756	getbinomo.exe	29
PID 756 wrote to memory of 564	756	getbinomo.exe	29
PID 564 wrote to memory of 1820	564	cmd.exe	31
PID 564 wrote to memory of 1820	564	cmd.exe	31
PID 564 wrote to memory of 1820	564	cmd.exe	31
PID 564 wrote to memory of 1664	564	cmd.exe	35
PID 564 wrote to memory of 1664	564	cmd.exe	35
PID 564 wrote to memory of 1664	564	cmd.exe	35
PID 756 wrote to memory of 856	756	getbinomo.exe	37
PID 756 wrote to memory of 856	756	getbinomo.exe	37
PID 756 wrote to memory of 856	756	getbinomo.exe	37
PID 856 wrote to memory of 1052	856	cmd.exe	39
PID 856 wrote to memory of 1052	856	cmd.exe	39
PID 856 wrote to memory of 1052	856	cmd.exe	39
PID 856 wrote to memory of 852	856	cmd.exe	40
PID 856 wrote to memory of 852	856	cmd.exe	40
PID 856 wrote to memory of 852	856	cmd.exe	40
PID 756 wrote to memory of 580	756	getbinomo.exe	41
PID 756 wrote to memory of 580	756	getbinomo.exe	41
PID 756 wrote to memory of 580	756	getbinomo.exe	41
PID 580 wrote to memory of 548	580	cmd.exe	43
PID 580 wrote to memory of 548	580	cmd.exe	43
PID 580 wrote to memory of 548	580	cmd.exe	43
PID 756 wrote to memory of 208	756	getbinomo.exe	47
PID 756 wrote to memory of 208	756	getbinomo.exe	47
PID 756 wrote to memory of 208	756	getbinomo.exe	47

C:\Users\Admin\AppData\Local\Temp\0d683d2e4fa69e5a5780ffcec285131df7d3467d0f5483ad7d1e918160817886.exe
"C:\Users\Admin\AppData\Local\Temp\0d683d2e4fa69e5a5780ffcec285131df7d3467d0f5483ad7d1e918160817886.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1432
- C:\Users\Admin\AppData\Roaming\getbinomo.exe
  "C:\Users\Admin\AppData\Roaming\getbinomo.exe"
  2⤵
  - Executes dropped EXE
  - Modifies extensions of user files
  - Drops startup file
  - 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:756
- - 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:564
  - - C:\Windows\system32\vssadmin.exe
      vssadmin delete shadows /all /quiet
      4⤵
      Interacts with shadow copies
      PID:1820
  - - C:\Windows\System32\Wbem\WMIC.exe
      wmic shadowcopy delete
      4⤵
      Suspicious use of AdjustPrivilegeToken
      PID:1664
- - 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:856
  - - C:\Windows\system32\bcdedit.exe
      bcdedit /set {default} bootstatuspolicy ignoreallfailures
      4⤵
      Modifies boot configuration data using bcdedit
      PID:1052
  - - C:\Windows\system32\bcdedit.exe
      bcdedit /set {default} recoveryenabled no
      4⤵
      Modifies boot configuration data using bcdedit
      PID:852
- - C:\Windows\System32\cmd.exe
    "C:\Windows\System32\cmd.exe" /C wbadmin delete catalog -quiet
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:580
  - - C:\Windows\system32\wbadmin.exe
      wbadmin delete catalog -quiet
      4⤵
      Deletes backup catalog
      PID:548
- - C:\Windows\system32\NOTEPAD.EXE
    "C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\AppData\Roaming\read_me.txt
    3⤵
    - Opens file in notepad (likely ransom note)
    PID:208

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:1124

C:\Windows\system32\wbengine.exe
"C:\Windows\system32\wbengine.exe"
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:1700

C:\Windows\System32\vdsldr.exe
C:\Windows\System32\vdsldr.exe -Embedding
1⤵
PID:1156

C:\Windows\System32\vds.exe
C:\Windows\System32\vds.exe
1⤵
PID:1660

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Command-Line Interface

T1059

Persistence

Privilege Escalation

Defense Evasion

File Deletion

T1107

Modify Registry

T1112

Credential Access

Credentials in Files

T1081

Discovery

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

memory/548-69-0x000007FEFBFD1000-0x000007FEFBFD3000-memory.dmp

Filesize
8KB

Download
memory/756-58-0x0000000001110000-0x0000000001111000-memory.dmp

Filesize
4KB

Download
memory/756-60-0x0000000000B40000-0x0000000000B42000-memory.dmp

Filesize
8KB

Download
memory/1432-53-0x0000000001200000-0x0000000001201000-memory.dmp

Filesize
4KB

Download