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
836s
max time network
841s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
13-07-2024 09:52

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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\Default\AppData\Roaming\Microsoft\Internet Explorer\Quick Launch\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 3 IoCs

Processes:

resource	yara_rule
behavioral1/memory/2352-1-0x00000000013A0000-0x00000000013F8000-memory.dmp	family_chaos
C:\Users\Admin\AppData\Roaming\svchost.exe	family_chaos
behavioral1/memory/2052-7-0x00000000011B0000-0x0000000001208000-memory.dmp	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

Processes:

bcdedit.exebcdedit.exe

pid process

2680 bcdedit.exe
3020 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

Processes:

wbadmin.exe

pid process

2732 wbadmin.exe
Disables Task Manager via registry modification
evasion
Deletes itself 1 IoCs

Processes:

svchost.exe

pid process

2052 svchost.exe
Executes dropped EXE 1 IoCs

Processes:

svchost.exe

pid process

2052 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

pid	process
2680	bcdedit.exe
3020	bcdedit.exe

pid	process
2732	wbadmin.exe

pid	process
2052	svchost.exe

pid	process
2052	svchost.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

svchost.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000\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
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

Processes:

vssadmin.exe

pid process

2928 vssadmin.exe
Opens file in notepad (likely ransom note) 1 IoCs
ransomware

Processes:

NOTEPAD.EXE

pid process

896 NOTEPAD.EXE
Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

svchost.exe

pid process

2052 svchost.exe

pid	process
2928	vssadmin.exe

pid	process
896	NOTEPAD.EXE

pid	process
2052	svchost.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

Processes:

0778d2ae6074545731b471360877b58c89ba0aaca6a0ffdb25694340c910cc93.exesvchost.exe

pid	process
2352	0778d2ae6074545731b471360877b58c89ba0aaca6a0ffdb25694340c910cc93.exe
2352	0778d2ae6074545731b471360877b58c89ba0aaca6a0ffdb25694340c910cc93.exe
2352	0778d2ae6074545731b471360877b58c89ba0aaca6a0ffdb25694340c910cc93.exe
2052	svchost.exe
2052	svchost.exe
2052	svchost.exe

Suspicious use of AdjustPrivilegeToken 48 IoCs

Processes:

0778d2ae6074545731b471360877b58c89ba0aaca6a0ffdb25694340c910cc93.exesvchost.exevssvc.exeWMIC.exewbengine.exe

description	pid	process
Token: SeDebugPrivilege	2352	0778d2ae6074545731b471360877b58c89ba0aaca6a0ffdb25694340c910cc93.exe
Token: SeDebugPrivilege	2052	svchost.exe
Token: SeBackupPrivilege	2456	vssvc.exe
Token: SeRestorePrivilege	2456	vssvc.exe
Token: SeAuditPrivilege	2456	vssvc.exe
Token: SeIncreaseQuotaPrivilege	2584	WMIC.exe
Token: SeSecurityPrivilege	2584	WMIC.exe
Token: SeTakeOwnershipPrivilege	2584	WMIC.exe
Token: SeLoadDriverPrivilege	2584	WMIC.exe
Token: SeSystemProfilePrivilege	2584	WMIC.exe
Token: SeSystemtimePrivilege	2584	WMIC.exe
Token: SeProfSingleProcessPrivilege	2584	WMIC.exe
Token: SeIncBasePriorityPrivilege	2584	WMIC.exe
Token: SeCreatePagefilePrivilege	2584	WMIC.exe
Token: SeBackupPrivilege	2584	WMIC.exe
Token: SeRestorePrivilege	2584	WMIC.exe
Token: SeShutdownPrivilege	2584	WMIC.exe
Token: SeDebugPrivilege	2584	WMIC.exe
Token: SeSystemEnvironmentPrivilege	2584	WMIC.exe
Token: SeRemoteShutdownPrivilege	2584	WMIC.exe
Token: SeUndockPrivilege	2584	WMIC.exe
Token: SeManageVolumePrivilege	2584	WMIC.exe
Token: 33	2584	WMIC.exe
Token: 34	2584	WMIC.exe
Token: 35	2584	WMIC.exe
Token: SeIncreaseQuotaPrivilege	2584	WMIC.exe
Token: SeSecurityPrivilege	2584	WMIC.exe
Token: SeTakeOwnershipPrivilege	2584	WMIC.exe
Token: SeLoadDriverPrivilege	2584	WMIC.exe
Token: SeSystemProfilePrivilege	2584	WMIC.exe
Token: SeSystemtimePrivilege	2584	WMIC.exe
Token: SeProfSingleProcessPrivilege	2584	WMIC.exe
Token: SeIncBasePriorityPrivilege	2584	WMIC.exe
Token: SeCreatePagefilePrivilege	2584	WMIC.exe
Token: SeBackupPrivilege	2584	WMIC.exe
Token: SeRestorePrivilege	2584	WMIC.exe
Token: SeShutdownPrivilege	2584	WMIC.exe
Token: SeDebugPrivilege	2584	WMIC.exe
Token: SeSystemEnvironmentPrivilege	2584	WMIC.exe
Token: SeRemoteShutdownPrivilege	2584	WMIC.exe
Token: SeUndockPrivilege	2584	WMIC.exe
Token: SeManageVolumePrivilege	2584	WMIC.exe
Token: 33	2584	WMIC.exe
Token: 34	2584	WMIC.exe
Token: 35	2584	WMIC.exe
Token: SeBackupPrivilege	836	wbengine.exe
Token: SeRestorePrivilege	836	wbengine.exe
Token: SeSecurityPrivilege	836	wbengine.exe

Suspicious use of WriteProcessMemory 30 IoCs

Processes:

0778d2ae6074545731b471360877b58c89ba0aaca6a0ffdb25694340c910cc93.exesvchost.execmd.execmd.execmd.exe

description	pid	process	target process
PID 2352 wrote to memory of 2052	2352	0778d2ae6074545731b471360877b58c89ba0aaca6a0ffdb25694340c910cc93.exe	svchost.exe
PID 2352 wrote to memory of 2052	2352	0778d2ae6074545731b471360877b58c89ba0aaca6a0ffdb25694340c910cc93.exe	svchost.exe
PID 2352 wrote to memory of 2052	2352	0778d2ae6074545731b471360877b58c89ba0aaca6a0ffdb25694340c910cc93.exe	svchost.exe
PID 2052 wrote to memory of 1712	2052	svchost.exe	cmd.exe
PID 2052 wrote to memory of 1712	2052	svchost.exe	cmd.exe
PID 2052 wrote to memory of 1712	2052	svchost.exe	cmd.exe
PID 1712 wrote to memory of 2928	1712	cmd.exe	vssadmin.exe
PID 1712 wrote to memory of 2928	1712	cmd.exe	vssadmin.exe
PID 1712 wrote to memory of 2928	1712	cmd.exe	vssadmin.exe
PID 1712 wrote to memory of 2584	1712	cmd.exe	WMIC.exe
PID 1712 wrote to memory of 2584	1712	cmd.exe	WMIC.exe
PID 1712 wrote to memory of 2584	1712	cmd.exe	WMIC.exe
PID 2052 wrote to memory of 2580	2052	svchost.exe	cmd.exe
PID 2052 wrote to memory of 2580	2052	svchost.exe	cmd.exe
PID 2052 wrote to memory of 2580	2052	svchost.exe	cmd.exe
PID 2580 wrote to memory of 2680	2580	cmd.exe	bcdedit.exe
PID 2580 wrote to memory of 2680	2580	cmd.exe	bcdedit.exe
PID 2580 wrote to memory of 2680	2580	cmd.exe	bcdedit.exe
PID 2580 wrote to memory of 3020	2580	cmd.exe	bcdedit.exe
PID 2580 wrote to memory of 3020	2580	cmd.exe	bcdedit.exe
PID 2580 wrote to memory of 3020	2580	cmd.exe	bcdedit.exe
PID 2052 wrote to memory of 2608	2052	svchost.exe	cmd.exe
PID 2052 wrote to memory of 2608	2052	svchost.exe	cmd.exe
PID 2052 wrote to memory of 2608	2052	svchost.exe	cmd.exe
PID 2608 wrote to memory of 2732	2608	cmd.exe	wbadmin.exe
PID 2608 wrote to memory of 2732	2608	cmd.exe	wbadmin.exe
PID 2608 wrote to memory of 2732	2608	cmd.exe	wbadmin.exe
PID 2052 wrote to memory of 896	2052	svchost.exe	NOTEPAD.EXE
PID 2052 wrote to memory of 896	2052	svchost.exe	NOTEPAD.EXE
PID 2052 wrote to memory of 896	2052	svchost.exe	NOTEPAD.EXE

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⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2352

C:\Users\Admin\AppData\Roaming\svchost.exe
"C:\Users\Admin\AppData\Roaming\svchost.exe"
2⤵
- Deletes itself
- Executes dropped EXE
- Adds Run key to start application
- Suspicious behavior: AddClipboardFormatListener
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2052

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:1712

C:\Windows\system32\vssadmin.exe
vssadmin delete shadows /all /quiet
4⤵
- Interacts with shadow copies
PID:2928

C:\Windows\System32\Wbem\WMIC.exe
wmic shadowcopy delete
4⤵
- Suspicious use of AdjustPrivilegeToken
PID:2584

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:2580

C:\Windows\system32\bcdedit.exe
bcdedit /set {default} bootstatuspolicy ignoreallfailures
4⤵
- Modifies boot configuration data using bcdedit
PID:2680

C:\Windows\system32\bcdedit.exe
bcdedit /set {default} recoveryenabled no
4⤵
- Modifies boot configuration data using bcdedit
PID:3020

C:\Windows\System32\cmd.exe
"C:\Windows\System32\cmd.exe" /C wbadmin delete catalog -quiet
3⤵
- Suspicious use of WriteProcessMemory
PID:2608

C:\Windows\system32\wbadmin.exe
wbadmin delete catalog -quiet
4⤵
- Deletes backup catalog
PID:2732

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:896

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:2456

C:\Windows\system32\wbengine.exe
"C:\Windows\system32\wbengine.exe"
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:836

C:\Windows\System32\vdsldr.exe
C:\Windows\System32\vdsldr.exe -Embedding
1⤵
PID:2084

C:\Windows\System32\vds.exe
C:\Windows\System32\vds.exe
1⤵
PID:1248

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

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\Google\Chrome\User Data\Default\heavy_ad_intervention_opt_out.db

Filesize
1B

MD5
d1457b72c3fb323a2671125aef3eab5d

SHA1
5bab61eb53176449e25c2c82f172b82cb13ffb9d

SHA256
8a8de823d5ed3e12746a62ef169bcf372be0ca44f0a1236abc35df05d96928e1

SHA512
ca63c07ad35d8c9fb0c92d6146759b122d4ec5d3f67ebe2f30ddb69f9e6c9fd3bf31a5e408b08f1d4d9cd68120cced9e57f010bef3cde97653fed5470da7d1a0

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

Filesize
328KB

MD5
b00f66d6e5f0c0daa86a03f1106920f8

SHA1
f7444b3934ce61c65c658a06c3a98aa9f08729e6

SHA256
0778d2ae6074545731b471360877b58c89ba0aaca6a0ffdb25694340c910cc93

SHA512
da18b638ec68a706a92d06551eed74afaa9da3a3d1f7e11361b50413c06b26fd5df862fb36a8e4290c3a8dead12fcfb8692d2a0e667bcf3355a614efdc9a0899

Download Submit
C:\Users\Default\AppData\Roaming\Microsoft\Internet Explorer\Quick Launch\SkynetData.txt

Filesize
809B

MD5
3843b3d50d0c9de7fc10fc9465f77617

SHA1
5c67f586681e286177ef24029b157466a8704dc9

SHA256
29e7191356a6629923329c7990b46ec13996c84041c7a622c45d43a0e36ca00d

SHA512
a1bcca500001e72360dfa21a11276c713524e097f0cb53eb766bf2f49f1bf10e4fa006452cd36c2d02471420ec9892dd6e31b8ebe5e2b247f8ceb2032eccd6e3

Download Submit
memory/2052-7-0x00000000011B0000-0x0000000001208000-memory.dmp

Filesize
352KB

Download
memory/2052-9-0x000007FEF5B60000-0x000007FEF654C000-memory.dmp

Filesize
9.9MB

Download
memory/2052-10-0x000007FEF5B60000-0x000007FEF654C000-memory.dmp

Filesize
9.9MB

Download
memory/2052-825-0x000007FEF5B60000-0x000007FEF654C000-memory.dmp

Filesize
9.9MB

Download
memory/2352-0-0x000007FEF5B63000-0x000007FEF5B64000-memory.dmp

Filesize
4KB

Download
memory/2352-1-0x00000000013A0000-0x00000000013F8000-memory.dmp

Filesize
352KB

Download
memory/2352-8-0x000007FEF5B60000-0x000007FEF654C000-memory.dmp

Filesize
9.9MB

Download
memory/2352-11-0x000007FEF5B60000-0x000007FEF654C000-memory.dmp

Filesize
9.9MB

Download