chaos | 0d9fcb8894240750cb5e4222ea78572aba6618eb5297c2069588ceb979d52d8b

Resubmissions

13-07-2024 09:54

240713-lxcvgawdmn 10

13-07-2024 09:52

240713-lv46yawdkj 10

13-07-2024 09:46

240713-lrz3tayajc 10

Analysis

max time kernel
93s
max time network
95s
platform
windows10-2004_x64
resource
win10v2004-20240709-en
resource tags

arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system
submitted
13-07-2024 09:46

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General

Target

0778d2ae6074545731b471360877b58c89ba0aaca6a0ffdb25694340c910cc93.exe
Size

328KB
MD5

b00f66d6e5f0c0daa86a03f1106920f8
SHA1

f7444b3934ce61c65c658a06c3a98aa9f08729e6
SHA256

0778d2ae6074545731b471360877b58c89ba0aaca6a0ffdb25694340c910cc93
SHA512

da18b638ec68a706a92d06551eed74afaa9da3a3d1f7e11361b50413c06b26fd5df862fb36a8e4290c3a8dead12fcfb8692d2a0e667bcf3355a614efdc9a0899
SSDEEP

6144:eGEjbL0hiIO18+LDCvzCnQHw67feMv8KiPuTL94:eZJIOG+vCvnJ8tPuF4

Score

10^/10

chaos defense_evasion evasion execution impact persistence ransomware spyware stealer

Malware Config

Extracted

Path

C:\Users\Admin\AppData\Local\Adobe\Acrobat\DC\SkynetData.txt

Ransom Note

------------------------ ALL YOUR FILES ARE ENCRYPTED ------------------------ Don't worry, you can return all your files! All your files documents, photos, databases and other important are encrypted with strongest encryption and unique key. The only method of recovering files is to purchase decrypt tool and unique key for you. This software will decrypt all your encrypted files. What guarantees do we give to you? You can send one of your encrypted file from your PC and we decrypt it for free. But we can decrypt only 1 file for free. File must not contain valuable information Don't try to use third-party decrypt tools because it will destroy your files. Discount 50% available if you contact us first 24 hours. T0 get this software you need write on our e-mail: [email protected]

Emails

[email protected]

Signatures

Chaos
Ransomware family first seen in June 2021.
ransomware chaos

Chaos Ransomware 2 IoCs

resource	yara_rule
behavioral1/memory/3620-0-0x0000000000AB0000-0x0000000000B08000-memory.dmp	family_chaos
behavioral1/files/0x000b000000023458-12.dat	family_chaos

Deletes shadow copies 3 TTPs
Ransomware often targets backup files to inhibit system recovery.
ransomware defense_evasion impact execution

File Deletion
T1070.004

Inhibit System Recovery
T1490

Windows Management Instrumentation
T1047

Modifies boot configuration data using bcdedit 1 TTPs 2 IoCs

ransomware evasion

Inhibit System Recovery

T1490

pid	Process
2372	bcdedit.exe
3580	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
4284	wbadmin.exe

Disables Task Manager via registry modification
evasion

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-1-5-21-1705699165-553239100-4129523827-1000\Control Panel\International\Geo\Nation	0778d2ae6074545731b471360877b58c89ba0aaca6a0ffdb25694340c910cc93.exe
Key value queried	\REGISTRY\USER\S-1-5-21-1705699165-553239100-4129523827-1000\Control Panel\International\Geo\Nation	svchost.exe

Deletes itself 1 IoCs

pid	Process
2368	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2368	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

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-1705699165-553239100-4129523827-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\UpdateTask = "C:\\Users\\Admin\\AppData\\Roaming\\svchost.exe"	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\CDROM&VEN_QEMU&PROD_QEMU_DVD-ROM\4&215468A5&0&010000	vds.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\CdRom&Ven_QEMU&Prod_QEMU_DVD-ROM\4&215468a5&0&010000\FriendlyName	vds.exe
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

Interacts with shadow copies 3 TTPs 1 IoCs

Shadow copies are often targeted by ransomware to inhibit system recovery.

ransomware

File Deletion

T1070.004

Inhibit System Recovery

T1490

Direct Volume Access

T1006

pid	Process
1800	vssadmin.exe

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-1705699165-553239100-4129523827-1000_Classes\Local Settings	svchost.exe

Opens file in notepad (likely ransom note) 1 IoCs

ransomware

pid	Process
3240	NOTEPAD.EXE

Suspicious behavior: AddClipboardFormatListener 2 IoCs

pid	Process
3620	0778d2ae6074545731b471360877b58c89ba0aaca6a0ffdb25694340c910cc93.exe
2368	svchost.exe

Suspicious behavior: EnumeratesProcesses 46 IoCs

pid	Process
3620	0778d2ae6074545731b471360877b58c89ba0aaca6a0ffdb25694340c910cc93.exe
3620	0778d2ae6074545731b471360877b58c89ba0aaca6a0ffdb25694340c910cc93.exe
3620	0778d2ae6074545731b471360877b58c89ba0aaca6a0ffdb25694340c910cc93.exe
3620	0778d2ae6074545731b471360877b58c89ba0aaca6a0ffdb25694340c910cc93.exe
3620	0778d2ae6074545731b471360877b58c89ba0aaca6a0ffdb25694340c910cc93.exe
3620	0778d2ae6074545731b471360877b58c89ba0aaca6a0ffdb25694340c910cc93.exe
3620	0778d2ae6074545731b471360877b58c89ba0aaca6a0ffdb25694340c910cc93.exe
3620	0778d2ae6074545731b471360877b58c89ba0aaca6a0ffdb25694340c910cc93.exe
3620	0778d2ae6074545731b471360877b58c89ba0aaca6a0ffdb25694340c910cc93.exe
3620	0778d2ae6074545731b471360877b58c89ba0aaca6a0ffdb25694340c910cc93.exe
3620	0778d2ae6074545731b471360877b58c89ba0aaca6a0ffdb25694340c910cc93.exe
3620	0778d2ae6074545731b471360877b58c89ba0aaca6a0ffdb25694340c910cc93.exe
3620	0778d2ae6074545731b471360877b58c89ba0aaca6a0ffdb25694340c910cc93.exe
3620	0778d2ae6074545731b471360877b58c89ba0aaca6a0ffdb25694340c910cc93.exe
3620	0778d2ae6074545731b471360877b58c89ba0aaca6a0ffdb25694340c910cc93.exe
3620	0778d2ae6074545731b471360877b58c89ba0aaca6a0ffdb25694340c910cc93.exe
3620	0778d2ae6074545731b471360877b58c89ba0aaca6a0ffdb25694340c910cc93.exe
3620	0778d2ae6074545731b471360877b58c89ba0aaca6a0ffdb25694340c910cc93.exe
3620	0778d2ae6074545731b471360877b58c89ba0aaca6a0ffdb25694340c910cc93.exe
3620	0778d2ae6074545731b471360877b58c89ba0aaca6a0ffdb25694340c910cc93.exe
3620	0778d2ae6074545731b471360877b58c89ba0aaca6a0ffdb25694340c910cc93.exe
2368	svchost.exe
2368	svchost.exe
2368	svchost.exe
2368	svchost.exe
2368	svchost.exe
2368	svchost.exe
2368	svchost.exe
2368	svchost.exe
2368	svchost.exe
2368	svchost.exe
2368	svchost.exe
2368	svchost.exe
2368	svchost.exe
2368	svchost.exe
2368	svchost.exe
2368	svchost.exe
2368	svchost.exe
2368	svchost.exe
2368	svchost.exe
2368	svchost.exe
2368	svchost.exe
2368	svchost.exe
2368	svchost.exe
2368	svchost.exe
2368	svchost.exe

Suspicious use of AdjustPrivilegeToken 50 IoCs

description	pid	Process
Token: SeDebugPrivilege	3620	0778d2ae6074545731b471360877b58c89ba0aaca6a0ffdb25694340c910cc93.exe
Token: SeDebugPrivilege	2368	svchost.exe
Token: SeBackupPrivilege	1832	vssvc.exe
Token: SeRestorePrivilege	1832	vssvc.exe
Token: SeAuditPrivilege	1832	vssvc.exe
Token: SeIncreaseQuotaPrivilege	2644	WMIC.exe
Token: SeSecurityPrivilege	2644	WMIC.exe
Token: SeTakeOwnershipPrivilege	2644	WMIC.exe
Token: SeLoadDriverPrivilege	2644	WMIC.exe
Token: SeSystemProfilePrivilege	2644	WMIC.exe
Token: SeSystemtimePrivilege	2644	WMIC.exe
Token: SeProfSingleProcessPrivilege	2644	WMIC.exe
Token: SeIncBasePriorityPrivilege	2644	WMIC.exe
Token: SeCreatePagefilePrivilege	2644	WMIC.exe
Token: SeBackupPrivilege	2644	WMIC.exe
Token: SeRestorePrivilege	2644	WMIC.exe
Token: SeShutdownPrivilege	2644	WMIC.exe
Token: SeDebugPrivilege	2644	WMIC.exe
Token: SeSystemEnvironmentPrivilege	2644	WMIC.exe
Token: SeRemoteShutdownPrivilege	2644	WMIC.exe
Token: SeUndockPrivilege	2644	WMIC.exe
Token: SeManageVolumePrivilege	2644	WMIC.exe
Token: 33	2644	WMIC.exe
Token: 34	2644	WMIC.exe
Token: 35	2644	WMIC.exe
Token: 36	2644	WMIC.exe
Token: SeIncreaseQuotaPrivilege	2644	WMIC.exe
Token: SeSecurityPrivilege	2644	WMIC.exe
Token: SeTakeOwnershipPrivilege	2644	WMIC.exe
Token: SeLoadDriverPrivilege	2644	WMIC.exe
Token: SeSystemProfilePrivilege	2644	WMIC.exe
Token: SeSystemtimePrivilege	2644	WMIC.exe
Token: SeProfSingleProcessPrivilege	2644	WMIC.exe
Token: SeIncBasePriorityPrivilege	2644	WMIC.exe
Token: SeCreatePagefilePrivilege	2644	WMIC.exe
Token: SeBackupPrivilege	2644	WMIC.exe
Token: SeRestorePrivilege	2644	WMIC.exe
Token: SeShutdownPrivilege	2644	WMIC.exe
Token: SeDebugPrivilege	2644	WMIC.exe
Token: SeSystemEnvironmentPrivilege	2644	WMIC.exe
Token: SeRemoteShutdownPrivilege	2644	WMIC.exe
Token: SeUndockPrivilege	2644	WMIC.exe
Token: SeManageVolumePrivilege	2644	WMIC.exe
Token: 33	2644	WMIC.exe
Token: 34	2644	WMIC.exe
Token: 35	2644	WMIC.exe
Token: 36	2644	WMIC.exe
Token: SeBackupPrivilege	796	wbengine.exe
Token: SeRestorePrivilege	796	wbengine.exe
Token: SeSecurityPrivilege	796	wbengine.exe

Suspicious use of WriteProcessMemory 20 IoCs

description	pid	Process	procid_target
PID 3620 wrote to memory of 2368	3620	0778d2ae6074545731b471360877b58c89ba0aaca6a0ffdb25694340c910cc93.exe	84
PID 3620 wrote to memory of 2368	3620	0778d2ae6074545731b471360877b58c89ba0aaca6a0ffdb25694340c910cc93.exe	84
PID 2368 wrote to memory of 1180	2368	svchost.exe	85
PID 2368 wrote to memory of 1180	2368	svchost.exe	85
PID 1180 wrote to memory of 1800	1180	cmd.exe	87
PID 1180 wrote to memory of 1800	1180	cmd.exe	87
PID 1180 wrote to memory of 2644	1180	cmd.exe	90
PID 1180 wrote to memory of 2644	1180	cmd.exe	90
PID 2368 wrote to memory of 2412	2368	svchost.exe	92
PID 2368 wrote to memory of 2412	2368	svchost.exe	92
PID 2412 wrote to memory of 3580	2412	cmd.exe	94
PID 2412 wrote to memory of 3580	2412	cmd.exe	94
PID 2412 wrote to memory of 2372	2412	cmd.exe	95
PID 2412 wrote to memory of 2372	2412	cmd.exe	95
PID 2368 wrote to memory of 3984	2368	svchost.exe	96
PID 2368 wrote to memory of 3984	2368	svchost.exe	96
PID 3984 wrote to memory of 4284	3984	cmd.exe	98
PID 3984 wrote to memory of 4284	3984	cmd.exe	98
PID 2368 wrote to memory of 3240	2368	svchost.exe	104
PID 2368 wrote to memory of 3240	2368	svchost.exe	104

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\0778d2ae6074545731b471360877b58c89ba0aaca6a0ffdb25694340c910cc93.exe
"C:\Users\Admin\AppData\Local\Temp\0778d2ae6074545731b471360877b58c89ba0aaca6a0ffdb25694340c910cc93.exe"
1⤵
- Checks computer location settings
- Suspicious behavior: AddClipboardFormatListener
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3620
- C:\Users\Admin\AppData\Roaming\svchost.exe
  "C:\Users\Admin\AppData\Roaming\svchost.exe"
  2⤵
  - Checks computer location settings
  - Deletes itself
  - Executes dropped EXE
  - Adds Run key to start application
  - Modifies registry class
  - Suspicious behavior: AddClipboardFormatListener
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2368
- - 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:1180
  - - C:\Windows\system32\vssadmin.exe
      vssadmin delete shadows /all /quiet
      4⤵
      Interacts with shadow copies
      PID:1800
  - - C:\Windows\System32\Wbem\WMIC.exe
      wmic shadowcopy delete
      4⤵
      Suspicious use of AdjustPrivilegeToken
      PID:2644
- - 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:2412
  - - C:\Windows\system32\bcdedit.exe
      bcdedit /set {default} bootstatuspolicy ignoreallfailures
      4⤵
      Modifies boot configuration data using bcdedit
      PID:3580
  - - C:\Windows\system32\bcdedit.exe
      bcdedit /set {default} recoveryenabled no
      4⤵
      Modifies boot configuration data using bcdedit
      PID:2372
- - C:\Windows\System32\cmd.exe
    "C:\Windows\System32\cmd.exe" /C wbadmin delete catalog -quiet
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:3984
  - - C:\Windows\system32\wbadmin.exe
      wbadmin delete catalog -quiet
      4⤵
      Deletes backup catalog
      PID:4284
- - C:\Windows\system32\NOTEPAD.EXE
    "C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\AppData\Roaming\SkynetData.txt
    3⤵
    - Opens file in notepad (likely ransom note)
    PID:3240

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:1832

C:\Windows\system32\wbengine.exe
"C:\Windows\system32\wbengine.exe"
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:796

C:\Windows\System32\vdsldr.exe
C:\Windows\System32\vdsldr.exe -Embedding
1⤵
PID:1988

C:\Windows\System32\vds.exe
C:\Windows\System32\vds.exe
1⤵
- Checks SCSI registry key(s)
PID:920

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

Windows Management Instrumentation

T1047

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Direct Volume Access

T1006

Indicator Removal

T1070

File Deletion

T1070.004

Modify Registry

T1112

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

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Downloads

C:\Users\Admin\AppData\Local\Adobe\Acrobat\DC\IconCacheRdr65536.dat

Filesize
1B

MD5
d1457b72c3fb323a2671125aef3eab5d

SHA1
5bab61eb53176449e25c2c82f172b82cb13ffb9d

SHA256
8a8de823d5ed3e12746a62ef169bcf372be0ca44f0a1236abc35df05d96928e1

SHA512
ca63c07ad35d8c9fb0c92d6146759b122d4ec5d3f67ebe2f30ddb69f9e6c9fd3bf31a5e408b08f1d4d9cd68120cced9e57f010bef3cde97653fed5470da7d1a0

Download Submit
C:\Users\Admin\AppData\Local\Adobe\Acrobat\DC\SkynetData.txt

Filesize
809B

MD5
3843b3d50d0c9de7fc10fc9465f77617

SHA1
5c67f586681e286177ef24029b157466a8704dc9

SHA256
29e7191356a6629923329c7990b46ec13996c84041c7a622c45d43a0e36ca00d

SHA512
a1bcca500001e72360dfa21a11276c713524e097f0cb53eb766bf2f49f1bf10e4fa006452cd36c2d02471420ec9892dd6e31b8ebe5e2b247f8ceb2032eccd6e3

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

Filesize
328KB

MD5
b00f66d6e5f0c0daa86a03f1106920f8

SHA1
f7444b3934ce61c65c658a06c3a98aa9f08729e6

SHA256
0778d2ae6074545731b471360877b58c89ba0aaca6a0ffdb25694340c910cc93

SHA512
da18b638ec68a706a92d06551eed74afaa9da3a3d1f7e11361b50413c06b26fd5df862fb36a8e4290c3a8dead12fcfb8692d2a0e667bcf3355a614efdc9a0899

Download Submit
memory/2368-15-0x00007FFA7E270000-0x00007FFA7ED31000-memory.dmp

Filesize
10.8MB

Download
memory/2368-1480-0x00007FFA7E270000-0x00007FFA7ED31000-memory.dmp

Filesize
10.8MB

Download
memory/3620-0-0x0000000000AB0000-0x0000000000B08000-memory.dmp

Filesize
352KB

Download
memory/3620-1-0x00007FFA7E273000-0x00007FFA7E275000-memory.dmp

Filesize
8KB

Download
memory/3620-2-0x00007FFA7E270000-0x00007FFA7ED31000-memory.dmp

Filesize
10.8MB

Download
memory/3620-1479-0x00007FFA7E270000-0x00007FFA7ED31000-memory.dmp

Filesize
10.8MB

Download