chaos | bd02208a5415b76b35f8057702ffbf8820349d4a4139158681932f1957c73e06

General

Target

2024-06-05_4ff85cbdd46c103d0e396807f24e910a_destroyer_wannacry.exe
Size

17KB
MD5

4ff85cbdd46c103d0e396807f24e910a
SHA1

9ec70e1ec2eeaaf7fa55986d6d57f62d2ae50765
SHA256

bd02208a5415b76b35f8057702ffbf8820349d4a4139158681932f1957c73e06
SHA512

11e1f1d3bd8166d798f95a16f14097baffdcc526bfa60c9207a0da63810327801f08ada6f65e7fcc711ef6973efddd0e3749b22477e2bd43ca7af070721c9aa8
SSDEEP

192:m9M3MgSZWHWUHKnaV1dGOqnovuDm4PDpJZX9ld4njwcPRHgStes/91C1mDm9S3vb:m+3Mg/bqo2RLpLtlOj7Jtr91CEmIRe/

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
behavioral1/memory/2940-1-0x0000000000280000-0x000000000028A000-memory.dmp	family_chaos
behavioral1/files/0x000b000000015ca5-4.dat	family_chaos
behavioral1/memory/2912-7-0x0000000000EB0000-0x0000000000EBA000-memory.dmp	family_chaos

Detects command variations typically used by ransomware 3 IoCs

resource	yara_rule
behavioral1/memory/2940-1-0x0000000000280000-0x000000000028A000-memory.dmp	INDICATOR_SUSPICIOUS_GENRansomware
behavioral1/files/0x000b000000015ca5-4.dat	INDICATOR_SUSPICIOUS_GENRansomware
behavioral1/memory/2912-7-0x0000000000EB0000-0x0000000000EBA000-memory.dmp	INDICATOR_SUSPICIOUS_GENRansomware

Drops startup file 1 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\svchost.url	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2912	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
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
2584	NOTEPAD.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
2912	svchost.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
2940	2024-06-05_4ff85cbdd46c103d0e396807f24e910a_destroyer_wannacry.exe
2940	2024-06-05_4ff85cbdd46c103d0e396807f24e910a_destroyer_wannacry.exe
2912	svchost.exe
2912	svchost.exe
2912	svchost.exe
2912	svchost.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2940	2024-06-05_4ff85cbdd46c103d0e396807f24e910a_destroyer_wannacry.exe
Token: SeDebugPrivilege	2912	svchost.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2940 wrote to memory of 2912	2940	2024-06-05_4ff85cbdd46c103d0e396807f24e910a_destroyer_wannacry.exe	28
PID 2940 wrote to memory of 2912	2940	2024-06-05_4ff85cbdd46c103d0e396807f24e910a_destroyer_wannacry.exe	28
PID 2940 wrote to memory of 2912	2940	2024-06-05_4ff85cbdd46c103d0e396807f24e910a_destroyer_wannacry.exe	28
PID 2912 wrote to memory of 2584	2912	svchost.exe	29
PID 2912 wrote to memory of 2584	2912	svchost.exe	29
PID 2912 wrote to memory of 2584	2912	svchost.exe	29

C:\Users\Admin\AppData\Local\Temp\2024-06-05_4ff85cbdd46c103d0e396807f24e910a_destroyer_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-05_4ff85cbdd46c103d0e396807f24e910a_destroyer_wannacry.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2940
- C:\Users\Admin\AppData\Roaming\svchost.exe
  "C:\Users\Admin\AppData\Roaming\svchost.exe"
  2⤵
  - Drops startup file
  - Executes dropped EXE
  - Suspicious behavior: AddClipboardFormatListener
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2912
- - 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:2584

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Unsecured Credentials

1

T1552

Credentials In Files

1

T1552.001

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Data from Local System

1

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Roaming\read_it.txt

Filesize
31B

MD5
bfa32079fea0deb78981666628772bb1

SHA1
1fdf7fc0b47cd971a912ea622cf42201c77e9f71

SHA256
e9698ccd7406c3f414f1ef2ad8ed63b6f110410ac72be25a0a4b055f09175f31

SHA512
bfe70383e9ac72c560b97e0283c79865b8eaf8f38d10e71fea396f7f7d0187de9d008273fbf00275c0b257e7177c316c65051c7403ce8378dccf96d5a8ec908d

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

Filesize
17KB

MD5
4ff85cbdd46c103d0e396807f24e910a

SHA1
9ec70e1ec2eeaaf7fa55986d6d57f62d2ae50765

SHA256
bd02208a5415b76b35f8057702ffbf8820349d4a4139158681932f1957c73e06

SHA512
11e1f1d3bd8166d798f95a16f14097baffdcc526bfa60c9207a0da63810327801f08ada6f65e7fcc711ef6973efddd0e3749b22477e2bd43ca7af070721c9aa8

Download Submit
memory/2912-7-0x0000000000EB0000-0x0000000000EBA000-memory.dmp

Filesize
40KB

Download
memory/2912-9-0x000007FEF5D70000-0x000007FEF675C000-memory.dmp

Filesize
9.9MB

Download
memory/2912-19-0x000007FEF5D70000-0x000007FEF675C000-memory.dmp

Filesize
9.9MB

Download
memory/2912-21-0x000007FEF5D70000-0x000007FEF675C000-memory.dmp

Filesize
9.9MB

Download
memory/2912-22-0x000007FEF5D70000-0x000007FEF675C000-memory.dmp

Filesize
9.9MB

Download
memory/2940-0-0x000007FEF5D73000-0x000007FEF5D74000-memory.dmp

Filesize
4KB

Download
memory/2940-1-0x0000000000280000-0x000000000028A000-memory.dmp

Filesize
40KB

Download

Analysis

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