chaos | d418ca84ca4bb7db72d2b00f8d6225a57909e02f712c7b0e2d9cefb2e18d0737

Resubmissions

13-07-2024 09:54

240713-lxbx6swdmm 10

13-07-2024 09:50

240713-lvbvdsyapd 10

13-07-2024 09:46

240713-lr1dksyajd 10

Analysis

max time kernel
839s
max time network
840s
platform
windows7_x64
resource
win7-20240704-en
resource tags

arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
submitted
13-07-2024 09:50

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General

Target

9bff71afadddb02956bd74c517b4de581885b0d6ff007796d00d3c2190c30275.exe
Size

976KB
MD5

52e77b6c313dccdf3e013b86a8cdd915
SHA1

72051bf592b4da79b44d704b675a810ad387a549
SHA256

9bff71afadddb02956bd74c517b4de581885b0d6ff007796d00d3c2190c30275
SHA512

7a9e397af4f1963e742c1125e55c9808b1e90b077c98be374638d06bccce2106e6c436e4629b6a5233f22adc451a9f351b99a8f45a2a86802a0d21c73860b4da
SSDEEP

12288:hUFOlD+3ryYy5zOuMEXyfrznawAmcCh7axyK9E3+ez2pSqxnBPrAM+zwbRU3i+yF:/a0rbpZ7mi+y

Score

10^/10

chaos ransomware spyware stealer

Malware Config

Signatures

Chaos
Ransomware family first seen in June 2021.
ransomware chaos

Chaos Ransomware 3 IoCs

resource	yara_rule
behavioral31/memory/2464-1-0x0000000000AE0000-0x0000000000BDA000-memory.dmp	family_chaos
behavioral31/files/0x00080000000120ff-5.dat	family_chaos
behavioral31/memory/2520-7-0x0000000001360000-0x000000000145A000-memory.dmp	family_chaos

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	MINECRAFTMFAGEN.exe
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\README.TXT	MINECRAFTMFAGEN.exe
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\MINECRAFTMFAGEN.url	MINECRAFTMFAGEN.exe

Executes dropped EXE 1 IoCs

pid	Process
2520	MINECRAFTMFAGEN.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\Contacts\desktop.ini	MINECRAFTMFAGEN.exe
File opened for modification	C:\Users\Admin\Music\desktop.ini	MINECRAFTMFAGEN.exe
File opened for modification	C:\Users\Admin\Saved Games\desktop.ini	MINECRAFTMFAGEN.exe
File opened for modification	C:\Users\Admin\Favorites\Links for United States\desktop.ini	MINECRAFTMFAGEN.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Administrative Tools\desktop.ini	MINECRAFTMFAGEN.exe
File opened for modification	C:\Users\Public\Videos\desktop.ini	MINECRAFTMFAGEN.exe
File opened for modification	C:\Users\Admin\Videos\desktop.ini	MINECRAFTMFAGEN.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Internet Explorer\Quick Launch\User Pinned\TaskBar\desktop.ini	MINECRAFTMFAGEN.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Accessories\Desktop.ini	MINECRAFTMFAGEN.exe
File opened for modification	C:\Users\Public\Pictures\Sample Pictures\desktop.ini	MINECRAFTMFAGEN.exe
File opened for modification	C:\Users\Public\Music\desktop.ini	MINECRAFTMFAGEN.exe
File opened for modification	C:\Users\Admin\Documents\desktop.ini	MINECRAFTMFAGEN.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Internet Explorer\Quick Launch\desktop.ini	MINECRAFTMFAGEN.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\SendTo\Desktop.ini	MINECRAFTMFAGEN.exe
File opened for modification	C:\Users\Admin\Desktop\desktop.ini	MINECRAFTMFAGEN.exe
File opened for modification	C:\Users\Admin\Pictures\desktop.ini	MINECRAFTMFAGEN.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\desktop.ini	MINECRAFTMFAGEN.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Accessories\System Tools\Desktop.ini	MINECRAFTMFAGEN.exe
File opened for modification	C:\Users\Public\Desktop\desktop.ini	MINECRAFTMFAGEN.exe
File opened for modification	C:\Users\Admin\Links\desktop.ini	MINECRAFTMFAGEN.exe
File opened for modification	C:\Users\Admin\Downloads\desktop.ini	MINECRAFTMFAGEN.exe
File opened for modification	C:\Users\Admin\Favorites\desktop.ini	MINECRAFTMFAGEN.exe
File opened for modification	C:\Users\Admin\Searches\desktop.ini	MINECRAFTMFAGEN.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\desktop.ini	MINECRAFTMFAGEN.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Maintenance\Desktop.ini	MINECRAFTMFAGEN.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Accessories\Accessibility\Desktop.ini	MINECRAFTMFAGEN.exe
File opened for modification	C:\Users\Public\Pictures\desktop.ini	MINECRAFTMFAGEN.exe
File opened for modification	F:\$RECYCLE.BIN\S-1-5-21-3450744190-3404161390-554719085-1000\desktop.ini	MINECRAFTMFAGEN.exe
File opened for modification	C:\Users\Admin\Favorites\Links\desktop.ini	MINECRAFTMFAGEN.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Libraries\desktop.ini	MINECRAFTMFAGEN.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\desktop.ini	MINECRAFTMFAGEN.exe
File opened for modification	C:\Users\Public\Documents\desktop.ini	MINECRAFTMFAGEN.exe
File opened for modification	C:\Users\Public\Music\Sample Music\desktop.ini	MINECRAFTMFAGEN.exe
File opened for modification	C:\Users\Public\Videos\Sample Videos\desktop.ini	MINECRAFTMFAGEN.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-1-5-21-3450744190-3404161390-554719085-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\AppData\\Local\\Temp\\w23e30z92.jpg"	MINECRAFTMFAGEN.exe

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

System Information Discovery
T1082

Opens file in notepad (likely ransom note) 1 IoCs

ransomware

pid	Process
2668	NOTEPAD.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
2520	MINECRAFTMFAGEN.exe

Suspicious behavior: EnumeratesProcesses 7 IoCs

pid	Process
2464	9bff71afadddb02956bd74c517b4de581885b0d6ff007796d00d3c2190c30275.exe
2464	9bff71afadddb02956bd74c517b4de581885b0d6ff007796d00d3c2190c30275.exe
2464	9bff71afadddb02956bd74c517b4de581885b0d6ff007796d00d3c2190c30275.exe
2520	MINECRAFTMFAGEN.exe
2520	MINECRAFTMFAGEN.exe
2520	MINECRAFTMFAGEN.exe
2520	MINECRAFTMFAGEN.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2464	9bff71afadddb02956bd74c517b4de581885b0d6ff007796d00d3c2190c30275.exe
Token: SeDebugPrivilege	2520	MINECRAFTMFAGEN.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2464 wrote to memory of 2520	2464	9bff71afadddb02956bd74c517b4de581885b0d6ff007796d00d3c2190c30275.exe	30
PID 2464 wrote to memory of 2520	2464	9bff71afadddb02956bd74c517b4de581885b0d6ff007796d00d3c2190c30275.exe	30
PID 2464 wrote to memory of 2520	2464	9bff71afadddb02956bd74c517b4de581885b0d6ff007796d00d3c2190c30275.exe	30
PID 2520 wrote to memory of 2668	2520	MINECRAFTMFAGEN.exe	32
PID 2520 wrote to memory of 2668	2520	MINECRAFTMFAGEN.exe	32
PID 2520 wrote to memory of 2668	2520	MINECRAFTMFAGEN.exe	32

C:\Users\Admin\AppData\Local\Temp\9bff71afadddb02956bd74c517b4de581885b0d6ff007796d00d3c2190c30275.exe
"C:\Users\Admin\AppData\Local\Temp\9bff71afadddb02956bd74c517b4de581885b0d6ff007796d00d3c2190c30275.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2464
- C:\Users\Admin\AppData\Roaming\MINECRAFTMFAGEN.exe
  "C:\Users\Admin\AppData\Roaming\MINECRAFTMFAGEN.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:2520
- - C:\Windows\system32\NOTEPAD.EXE
    "C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\AppData\Roaming\README.TXT
    3⤵
    - Opens file in notepad (likely ransom note)
    PID:2668

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

Defacement

T1491

Replay Monitor

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Downloads

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

Filesize
976KB

MD5
52e77b6c313dccdf3e013b86a8cdd915

SHA1
72051bf592b4da79b44d704b675a810ad387a549

SHA256
9bff71afadddb02956bd74c517b4de581885b0d6ff007796d00d3c2190c30275

SHA512
7a9e397af4f1963e742c1125e55c9808b1e90b077c98be374638d06bccce2106e6c436e4629b6a5233f22adc451a9f351b99a8f45a2a86802a0d21c73860b4da

Download Submit
C:\Users\Admin\Documents\README.TXT

Filesize
3KB

MD5
2e33475a88e04e3730f8f4071999d4bd

SHA1
0927e48d079f53f2918f0da295815aa30fd9e332

SHA256
b02a228ef21dfbb2c2f9a26dfc6c1259d39b67ccf551ab274e3023f2798736a4

SHA512
4c4e4239ee2a497ffade47d07df63cb01d2516427c430c05206c51755cd3c3645ebaa118805efd381f049f2e35593897c8ea0f9a0a009eb7e2ff62f63953342c

Download Submit
memory/2464-0-0x000007FEF5953000-0x000007FEF5954000-memory.dmp

Filesize
4KB

Download
memory/2464-1-0x0000000000AE0000-0x0000000000BDA000-memory.dmp

Filesize
1000KB

Download
memory/2520-7-0x0000000001360000-0x000000000145A000-memory.dmp

Filesize
1000KB

Download
memory/2520-25-0x000007FEF4F60000-0x000007FEF594C000-memory.dmp

Filesize
9.9MB

Download
memory/2520-484-0x000007FEF4F63000-0x000007FEF4F64000-memory.dmp

Filesize
4KB

Download
memory/2520-485-0x000007FEF4F60000-0x000007FEF594C000-memory.dmp

Filesize
9.9MB

Download