chaos | 9655de02d2274819418054aa58e22e88b2b649a5d2da076e9e53ce425048ea45

Analysis

max time kernel
148s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
06-03-2024 05:23

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General

Target

9655de02d2274819418054aa58e22e88b2b649a5d2da076e9e53ce425048ea45.exe
Size

26KB
MD5

ad78e9e6e100891aa25b07097029842a
SHA1

d979d4fc1bfb8b54699423a5a35d1064426b4f1c
SHA256

9655de02d2274819418054aa58e22e88b2b649a5d2da076e9e53ce425048ea45
SHA512

3796a39cee380b76c9e034237bd929232df26bc77154aff7d7049301fb452c991bab555362af4c67540bc6d5b0bbf6e96eea2bb4c9d3b285791ae795ef6059c6
SSDEEP

384:r3Mg/bqo2jiDpMkms1mIJDr91CrLGezan:Nqo2eDpMkms1mADr9UiezU

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
behavioral2/memory/4844-0-0x0000000000C60000-0x0000000000C6C000-memory.dmp	family_chaos
behavioral2/files/0x00070000000231d4-6.dat	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 2 IoCs

resource	yara_rule
behavioral2/memory/4844-0-0x0000000000C60000-0x0000000000C6C000-memory.dmp	INDICATOR_SUSPICIOUS_GENRansomware
behavioral2/files/0x00070000000231d4-6.dat	INDICATOR_SUSPICIOUS_GENRansomware

Modifies boot configuration data using bcdedit 1 TTPs 2 IoCs

ransomware evasion

Inhibit System Recovery

T1490

pid	Process
2000	bcdedit.exe
3100	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
4812	wbadmin.exe

Checks computer location settings 2 TTPs 2 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-399997616-3400990511-967324271-1000\Control Panel\International\Geo\Nation	9655de02d2274819418054aa58e22e88b2b649a5d2da076e9e53ce425048ea45.exe
Key value queried	\REGISTRY\USER\S-1-5-21-399997616-3400990511-967324271-1000\Control Panel\International\Geo\Nation	svchost.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
2316	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\Pictures\Saved Pictures\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\desktop.ini	svchost.exe
File opened for modification	C:\Users\Public\Pictures\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\Links\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\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\System Tools\Desktop.ini	svchost.exe
File opened for modification	C:\Users\Public\Music\desktop.ini	svchost.exe
File opened for modification	F:\$RECYCLE.BIN\S-1-5-21-399997616-3400990511-967324271-1000\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\Desktop\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\Links\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\Videos\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\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\Contacts\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\Documents\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\Pictures\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\OneDrive\desktop.ini	svchost.exe
File opened for modification	C:\Users\Public\Documents\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\Libraries\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\Pictures\Camera Roll\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\Music\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\Favorites\desktop.ini	svchost.exe
File opened for modification	C:\Users\Public\Videos\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\Internet Explorer\Quick Launch\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\AccountPictures\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\Start Menu\Programs\Accessibility\desktop.ini	svchost.exe

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

System Information Discovery
T1082

Checks SCSI registry key(s) 3 TTPs 4 IoCs

SCSI information is often read in order to detect sandboxing environments.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\DISK&VEN_DADY&PROD_HARDDISK\4&215468A5&0&000000	vds.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_DADY&Prod_HARDDISK\4&215468a5&0&000000\FriendlyName	vds.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\CDROM&VEN_DADY&PROD_DADY_DVD-ROM\4&215468A5&0&010000	vds.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\CdRom&Ven_DADY&Prod_DADY_DVD-ROM\4&215468a5&0&010000\FriendlyName	vds.exe

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
4888	vssadmin.exe

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-399997616-3400990511-967324271-1000_Classes\Local Settings	svchost.exe

Opens file in notepad (likely ransom note) 1 IoCs

ransomware

pid	Process
540	NOTEPAD.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
2316	svchost.exe

Suspicious behavior: EnumeratesProcesses 51 IoCs

pid	Process
4844	9655de02d2274819418054aa58e22e88b2b649a5d2da076e9e53ce425048ea45.exe
4844	9655de02d2274819418054aa58e22e88b2b649a5d2da076e9e53ce425048ea45.exe
4844	9655de02d2274819418054aa58e22e88b2b649a5d2da076e9e53ce425048ea45.exe
4844	9655de02d2274819418054aa58e22e88b2b649a5d2da076e9e53ce425048ea45.exe
4844	9655de02d2274819418054aa58e22e88b2b649a5d2da076e9e53ce425048ea45.exe
4844	9655de02d2274819418054aa58e22e88b2b649a5d2da076e9e53ce425048ea45.exe
4844	9655de02d2274819418054aa58e22e88b2b649a5d2da076e9e53ce425048ea45.exe
4844	9655de02d2274819418054aa58e22e88b2b649a5d2da076e9e53ce425048ea45.exe
4844	9655de02d2274819418054aa58e22e88b2b649a5d2da076e9e53ce425048ea45.exe
4844	9655de02d2274819418054aa58e22e88b2b649a5d2da076e9e53ce425048ea45.exe
4844	9655de02d2274819418054aa58e22e88b2b649a5d2da076e9e53ce425048ea45.exe
4844	9655de02d2274819418054aa58e22e88b2b649a5d2da076e9e53ce425048ea45.exe
4844	9655de02d2274819418054aa58e22e88b2b649a5d2da076e9e53ce425048ea45.exe
4844	9655de02d2274819418054aa58e22e88b2b649a5d2da076e9e53ce425048ea45.exe
4844	9655de02d2274819418054aa58e22e88b2b649a5d2da076e9e53ce425048ea45.exe
4844	9655de02d2274819418054aa58e22e88b2b649a5d2da076e9e53ce425048ea45.exe
4844	9655de02d2274819418054aa58e22e88b2b649a5d2da076e9e53ce425048ea45.exe
4844	9655de02d2274819418054aa58e22e88b2b649a5d2da076e9e53ce425048ea45.exe
4844	9655de02d2274819418054aa58e22e88b2b649a5d2da076e9e53ce425048ea45.exe
4844	9655de02d2274819418054aa58e22e88b2b649a5d2da076e9e53ce425048ea45.exe
4844	9655de02d2274819418054aa58e22e88b2b649a5d2da076e9e53ce425048ea45.exe
4844	9655de02d2274819418054aa58e22e88b2b649a5d2da076e9e53ce425048ea45.exe
4844	9655de02d2274819418054aa58e22e88b2b649a5d2da076e9e53ce425048ea45.exe
4844	9655de02d2274819418054aa58e22e88b2b649a5d2da076e9e53ce425048ea45.exe
4844	9655de02d2274819418054aa58e22e88b2b649a5d2da076e9e53ce425048ea45.exe
2316	svchost.exe
2316	svchost.exe
2316	svchost.exe
2316	svchost.exe
2316	svchost.exe
2316	svchost.exe
2316	svchost.exe
2316	svchost.exe
2316	svchost.exe
2316	svchost.exe
2316	svchost.exe
2316	svchost.exe
2316	svchost.exe
2316	svchost.exe
2316	svchost.exe
2316	svchost.exe
2316	svchost.exe
2316	svchost.exe
2316	svchost.exe
2316	svchost.exe
2316	svchost.exe
2316	svchost.exe
2316	svchost.exe
2316	svchost.exe
2316	svchost.exe
2316	svchost.exe

Suspicious use of AdjustPrivilegeToken 50 IoCs

description	pid	Process
Token: SeDebugPrivilege	4844	9655de02d2274819418054aa58e22e88b2b649a5d2da076e9e53ce425048ea45.exe
Token: SeDebugPrivilege	2316	svchost.exe
Token: SeBackupPrivilege	1700	vssvc.exe
Token: SeRestorePrivilege	1700	vssvc.exe
Token: SeAuditPrivilege	1700	vssvc.exe
Token: SeIncreaseQuotaPrivilege	1356	WMIC.exe
Token: SeSecurityPrivilege	1356	WMIC.exe
Token: SeTakeOwnershipPrivilege	1356	WMIC.exe
Token: SeLoadDriverPrivilege	1356	WMIC.exe
Token: SeSystemProfilePrivilege	1356	WMIC.exe
Token: SeSystemtimePrivilege	1356	WMIC.exe
Token: SeProfSingleProcessPrivilege	1356	WMIC.exe
Token: SeIncBasePriorityPrivilege	1356	WMIC.exe
Token: SeCreatePagefilePrivilege	1356	WMIC.exe
Token: SeBackupPrivilege	1356	WMIC.exe
Token: SeRestorePrivilege	1356	WMIC.exe
Token: SeShutdownPrivilege	1356	WMIC.exe
Token: SeDebugPrivilege	1356	WMIC.exe
Token: SeSystemEnvironmentPrivilege	1356	WMIC.exe
Token: SeRemoteShutdownPrivilege	1356	WMIC.exe
Token: SeUndockPrivilege	1356	WMIC.exe
Token: SeManageVolumePrivilege	1356	WMIC.exe
Token: 33	1356	WMIC.exe
Token: 34	1356	WMIC.exe
Token: 35	1356	WMIC.exe
Token: 36	1356	WMIC.exe
Token: SeIncreaseQuotaPrivilege	1356	WMIC.exe
Token: SeSecurityPrivilege	1356	WMIC.exe
Token: SeTakeOwnershipPrivilege	1356	WMIC.exe
Token: SeLoadDriverPrivilege	1356	WMIC.exe
Token: SeSystemProfilePrivilege	1356	WMIC.exe
Token: SeSystemtimePrivilege	1356	WMIC.exe
Token: SeProfSingleProcessPrivilege	1356	WMIC.exe
Token: SeIncBasePriorityPrivilege	1356	WMIC.exe
Token: SeCreatePagefilePrivilege	1356	WMIC.exe
Token: SeBackupPrivilege	1356	WMIC.exe
Token: SeRestorePrivilege	1356	WMIC.exe
Token: SeShutdownPrivilege	1356	WMIC.exe
Token: SeDebugPrivilege	1356	WMIC.exe
Token: SeSystemEnvironmentPrivilege	1356	WMIC.exe
Token: SeRemoteShutdownPrivilege	1356	WMIC.exe
Token: SeUndockPrivilege	1356	WMIC.exe
Token: SeManageVolumePrivilege	1356	WMIC.exe
Token: 33	1356	WMIC.exe
Token: 34	1356	WMIC.exe
Token: 35	1356	WMIC.exe
Token: 36	1356	WMIC.exe
Token: SeBackupPrivilege	4440	wbengine.exe
Token: SeRestorePrivilege	4440	wbengine.exe
Token: SeSecurityPrivilege	4440	wbengine.exe

Suspicious use of WriteProcessMemory 20 IoCs

description	pid	Process	procid_target
PID 4844 wrote to memory of 2316	4844	9655de02d2274819418054aa58e22e88b2b649a5d2da076e9e53ce425048ea45.exe	92
PID 4844 wrote to memory of 2316	4844	9655de02d2274819418054aa58e22e88b2b649a5d2da076e9e53ce425048ea45.exe	92
PID 2316 wrote to memory of 4028	2316	svchost.exe	97
PID 2316 wrote to memory of 4028	2316	svchost.exe	97
PID 4028 wrote to memory of 4888	4028	cmd.exe	100
PID 4028 wrote to memory of 4888	4028	cmd.exe	100
PID 4028 wrote to memory of 1356	4028	cmd.exe	104
PID 4028 wrote to memory of 1356	4028	cmd.exe	104
PID 2316 wrote to memory of 4504	2316	svchost.exe	105
PID 2316 wrote to memory of 4504	2316	svchost.exe	105
PID 4504 wrote to memory of 2000	4504	cmd.exe	107
PID 4504 wrote to memory of 2000	4504	cmd.exe	107
PID 4504 wrote to memory of 3100	4504	cmd.exe	108
PID 4504 wrote to memory of 3100	4504	cmd.exe	108
PID 2316 wrote to memory of 1472	2316	svchost.exe	109
PID 2316 wrote to memory of 1472	2316	svchost.exe	109
PID 1472 wrote to memory of 4812	1472	cmd.exe	111
PID 1472 wrote to memory of 4812	1472	cmd.exe	111
PID 2316 wrote to memory of 540	2316	svchost.exe	115
PID 2316 wrote to memory of 540	2316	svchost.exe	115

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\9655de02d2274819418054aa58e22e88b2b649a5d2da076e9e53ce425048ea45.exe
"C:\Users\Admin\AppData\Local\Temp\9655de02d2274819418054aa58e22e88b2b649a5d2da076e9e53ce425048ea45.exe"
1⤵
- Checks computer location settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4844
- C:\Users\Admin\AppData\Roaming\svchost.exe
  "C:\Users\Admin\AppData\Roaming\svchost.exe"
  2⤵
  - Checks computer location settings
  - Drops startup file
  - Executes dropped EXE
  - Drops desktop.ini file(s)
  - Modifies registry class
  - Suspicious behavior: AddClipboardFormatListener
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2316
- - 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:4028
  - - C:\Windows\system32\vssadmin.exe
      vssadmin delete shadows /all /quiet
      4⤵
      Interacts with shadow copies
      PID:4888
  - - C:\Windows\System32\Wbem\WMIC.exe
      wmic shadowcopy delete
      4⤵
      Suspicious use of AdjustPrivilegeToken
      PID:1356
- - 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:4504
  - - C:\Windows\system32\bcdedit.exe
      bcdedit /set {default} bootstatuspolicy ignoreallfailures
      4⤵
      Modifies boot configuration data using bcdedit
      PID:2000
  - - C:\Windows\system32\bcdedit.exe
      bcdedit /set {default} recoveryenabled no
      4⤵
      Modifies boot configuration data using bcdedit
      PID:3100
- - C:\Windows\System32\cmd.exe
    "C:\Windows\System32\cmd.exe" /C wbadmin delete catalog -quiet
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:1472
  - - C:\Windows\system32\wbadmin.exe
      wbadmin delete catalog -quiet
      4⤵
      Deletes backup catalog
      PID:4812
- - 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:540

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

C:\Windows\system32\wbengine.exe
"C:\Windows\system32\wbengine.exe"
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:4440

C:\Windows\System32\vdsldr.exe
C:\Windows\System32\vdsldr.exe -Embedding
1⤵
PID:4628

C:\Windows\System32\vds.exe
C:\Windows\System32\vds.exe
1⤵
- Checks SCSI registry key(s)
PID:3552

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

Peripheral Device Discovery

T1120

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

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Roaming\svchost.exe

Filesize
26KB

MD5
ad78e9e6e100891aa25b07097029842a

SHA1
d979d4fc1bfb8b54699423a5a35d1064426b4f1c

SHA256
9655de02d2274819418054aa58e22e88b2b649a5d2da076e9e53ce425048ea45

SHA512
3796a39cee380b76c9e034237bd929232df26bc77154aff7d7049301fb452c991bab555362af4c67540bc6d5b0bbf6e96eea2bb4c9d3b285791ae795ef6059c6

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

Filesize
33B

MD5
7e471568db4920adde170dca1b37b782

SHA1
64405354fcaafd0022ce03993a9349c959f4c000

SHA256
fe2a4beae8ee29602f911552f296e0ac25e4e3aecd90c841d2c3afe81e8af63a

SHA512
0dd445cf1668e2c0bb55a75290f007b5dec85913e2785c31f590c42d006a13664a8698e8d4d117c853ce29e52bf73252fb00bf6b3f7ce6e04d13d7dbea63f680

Download Submit
memory/2316-15-0x00007FF8B7BB0000-0x00007FF8B8671000-memory.dmp

Filesize
10.8MB

Download
memory/2316-429-0x00007FF8B7BB0000-0x00007FF8B8671000-memory.dmp

Filesize
10.8MB

Download
memory/4844-0-0x0000000000C60000-0x0000000000C6C000-memory.dmp

Filesize
48KB

Download
memory/4844-1-0x00007FF8B7BB0000-0x00007FF8B8671000-memory.dmp

Filesize
10.8MB

Download
memory/4844-14-0x00007FF8B7BB0000-0x00007FF8B8671000-memory.dmp

Filesize
10.8MB

Download