chaos | e0e6ad97946ee0f7a1f3428c58251e11695838f28915ff13eb699d1efa42ab74

Analysis

max time kernel
119s
max time network
120s
platform
windows7_x64
resource
win7-20240220-en
resource tags

arch:x64arch:x86image:win7-20240220-enlocale:en-usos:windows7-x64system
submitted
06-05-2024 23:29

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General

Target

2024-05-06_f949fa73445b6c688448028652d7adfd_destroyer_wannacry.exe
Size

27KB
MD5

f949fa73445b6c688448028652d7adfd
SHA1

d87faf9ecdae393fd1d00c47fcd8e568ecec1ead
SHA256

e0e6ad97946ee0f7a1f3428c58251e11695838f28915ff13eb699d1efa42ab74
SHA512

72349f756d4f70e537eb007b2cba0890cd38632e53c259e31ee97491dae14574f065beafd7549491a33c730c4b46086f86dd23e3de761ac4c4364c0ac093568a
SSDEEP

384:OtWZPzzxAm1vm5UW7ZliJj6EWx0ZeuBbcPlBOy5o916uZwet82vP:T7zxAmGU0ZlE670Zeu1eho9kuCk82n

Score

10^/10

chaos persistence 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/2764-1-0x0000000000A30000-0x0000000000A3E000-memory.dmp	family_chaos
behavioral1/files/0x000c00000001225d-6.dat	family_chaos
behavioral1/memory/2768-8-0x00000000013E0000-0x00000000013EE000-memory.dmp	family_chaos

Detects command variations typically used by ransomware 3 IoCs

resource	yara_rule
behavioral1/memory/2764-1-0x0000000000A30000-0x0000000000A3E000-memory.dmp	INDICATOR_SUSPICIOUS_GENRansomware
behavioral1/files/0x000c00000001225d-6.dat	INDICATOR_SUSPICIOUS_GENRansomware
behavioral1/memory/2768-8-0x00000000013E0000-0x00000000013EE000-memory.dmp	INDICATOR_SUSPICIOUS_GENRansomware

Detects executables containing many references to VEEAM. Observed in ransomware 3 IoCs

resource	yara_rule
behavioral1/memory/2764-1-0x0000000000A30000-0x0000000000A3E000-memory.dmp	INDICATOR_SUSPICOUS_EXE_References_VEEAM
behavioral1/files/0x000c00000001225d-6.dat	INDICATOR_SUSPICOUS_EXE_References_VEEAM
behavioral1/memory/2768-8-0x00000000013E0000-0x00000000013EE000-memory.dmp	INDICATOR_SUSPICOUS_EXE_References_VEEAM

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\leggiqua.txt	svchost.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\desktop.ini	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2768	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-1-5-21-2721934792-624042501-2768869379-1000\Software\Microsoft\Windows\CurrentVersion\Run\UpdateTask = "C:\\Users\\Admin\\AppData\\Roaming\\svchost.exe"	svchost.exe

Drops desktop.ini file(s) 64 IoCs

description	ioc	Process
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\Local\Microsoft\Feeds Cache\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\AppData\Local\Microsoft\Windows\Burn\Burn\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\desktop.ini	svchost.exe
File opened for modification	C:\Users\All Users\Microsoft\Windows\Start Menu\Programs\Accessories\System Tools\Desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\HL1JTUOY\desktop.ini	svchost.exe
File opened for modification	C:\Users\Public\Recorded TV\desktop.ini	svchost.exe
File opened for modification	C:\Users\Public\Recorded TV\Sample Media\desktop.ini	svchost.exe
File opened for modification	C:\Users\Public\Libraries\desktop.ini	svchost.exe
File opened for modification	C:\Users\All Users\Microsoft\Windows\Start Menu\Programs\Games\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\Accessories\System Tools\Desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\Pictures\desktop.ini	svchost.exe
File opened for modification	C:\Users\Default\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Accessories\Desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\AppData\Local\Microsoft\Feeds Cache\KEQD8ZAD\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\OQAMAYIL\desktop.ini	svchost.exe
File opened for modification	C:\Users\Public\Videos\desktop.ini	svchost.exe
File opened for modification	C:\Users\Public\Videos\Sample Videos\desktop.ini	svchost.exe
File opened for modification	C:\Users\All Users\Microsoft\Windows\Start Menu\Programs\Accessories\Windows PowerShell\desktop.ini	svchost.exe
File opened for modification	C:\Users\All Users\Microsoft\Windows\Start Menu\Programs\Maintenance\Desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\Favorites\Links for United States\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\Documents\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\Music\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\Searches\desktop.ini	svchost.exe
File opened for modification	C:\Users\All Users\Microsoft\Windows\Start Menu\desktop.ini	svchost.exe
File opened for modification	C:\Users\All Users\Microsoft\Windows\Start Menu\Programs\Administrative Tools\desktop.ini	svchost.exe
File opened for modification	C:\Users\Default\AppData\Roaming\Microsoft\Internet Explorer\Quick Launch\desktop.ini	svchost.exe
File opened for modification	C:\Users\Default\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Accessories\Accessibility\Desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\AppData\Local\Microsoft\Windows\History\History.IE5\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\Favorites\Links\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\Downloads\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\Saved Games\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\Start Menu\Programs\Accessories\Accessibility\Desktop.ini	svchost.exe
File opened for modification	C:\Users\All Users\Microsoft\Windows\Start Menu\Programs\desktop.ini	svchost.exe
File opened for modification	C:\Users\Public\Pictures\Sample Pictures\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\Start Menu\Programs\Administrative Tools\desktop.ini	svchost.exe
File opened for modification	C:\Users\Default\AppData\Roaming\Microsoft\Windows\SendTo\Desktop.ini	svchost.exe
File opened for modification	C:\Users\Default\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Maintenance\Desktop.ini	svchost.exe
File opened for modification	C:\Users\All Users\Microsoft\Windows\Start Menu\Programs\Accessories\Accessibility\Desktop.ini	svchost.exe
File opened for modification	C:\Users\All Users\Microsoft\Windows\Start Menu\Programs\Accessories\Tablet PC\Desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\Links\desktop.ini	svchost.exe
File opened for modification	C:\Users\Public\Downloads\desktop.ini	svchost.exe
File opened for modification	C:\Users\Public\Music\desktop.ini	svchost.exe
File opened for modification	C:\Users\All Users\Microsoft\Windows\Ringtones\desktop.ini	svchost.exe
File opened for modification	C:\Users\All Users\Microsoft\Windows\Start Menu\Programs\Accessories\Desktop.ini	svchost.exe
File opened for modification	C:\Users\All Users\Microsoft\Windows\Start Menu\Programs\Startup\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\Contacts\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\Videos\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\AppData\Local\Microsoft\Feeds Cache\66RFTKYZ\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\AppData\Local\Microsoft\Feeds Cache\M221U1AY\desktop.ini	svchost.exe
File opened for modification	C:\Users\Public\Documents\desktop.ini	svchost.exe
File opened for modification	C:\Users\Public\Pictures\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\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\Accessories\Desktop.ini	svchost.exe
File opened for modification	C:\Users\Default\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Accessories\System Tools\Desktop.ini	svchost.exe
File opened for modification	C:\Users\Public\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\AppData\Local\Microsoft\Windows Mail\Stationery\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\Admin\AppData\Local\Microsoft\Windows\History\desktop.ini	svchost.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
2068	NOTEPAD.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
2768	svchost.exe

Suspicious behavior: EnumeratesProcesses 5 IoCs

pid	Process
2764	2024-05-06_f949fa73445b6c688448028652d7adfd_destroyer_wannacry.exe
2764	2024-05-06_f949fa73445b6c688448028652d7adfd_destroyer_wannacry.exe
2768	svchost.exe
2768	svchost.exe
2768	svchost.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2764	2024-05-06_f949fa73445b6c688448028652d7adfd_destroyer_wannacry.exe
Token: SeDebugPrivilege	2768	svchost.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2764 wrote to memory of 2768	2764	2024-05-06_f949fa73445b6c688448028652d7adfd_destroyer_wannacry.exe	28
PID 2764 wrote to memory of 2768	2764	2024-05-06_f949fa73445b6c688448028652d7adfd_destroyer_wannacry.exe	28
PID 2764 wrote to memory of 2768	2764	2024-05-06_f949fa73445b6c688448028652d7adfd_destroyer_wannacry.exe	28
PID 2768 wrote to memory of 2068	2768	svchost.exe	29
PID 2768 wrote to memory of 2068	2768	svchost.exe	29
PID 2768 wrote to memory of 2068	2768	svchost.exe	29

C:\Users\Admin\AppData\Local\Temp\2024-05-06_f949fa73445b6c688448028652d7adfd_destroyer_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-06_f949fa73445b6c688448028652d7adfd_destroyer_wannacry.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2764
- C:\Users\Admin\AppData\Roaming\svchost.exe
  "C:\Users\Admin\AppData\Roaming\svchost.exe"
  2⤵
  - Drops startup file
  - Executes dropped EXE
  - Adds Run key to start application
  - Drops desktop.ini file(s)
  - Suspicious behavior: AddClipboardFormatListener
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2768
- - C:\Windows\system32\NOTEPAD.EXE
    "C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\AppData\Roaming\leggiqua.txt
    3⤵
    - Opens file in notepad (likely ransom note)
    PID:2068

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

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

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

Replay Monitor

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Downloads

C:\ProgramData\Adobe\Updater6\leggiqua.txt

Filesize
298B

MD5
211f257e6a61f3c0c3211a58458dc7e5

SHA1
8fdcb2199961e21641730fc4e2e3a62cf2d2aae9

SHA256
0423ea12f0843de2626d18b133ed30ac47482f6548fdb7d112a807e67e1efab7

SHA512
c04f6eacc5a7e64e1b37fc2cf8d314663d14c3803f0ff0423237c7bdd33f4b97f360eaf22f9d05f462c75b4c2df2bccd1962b2eea07f3997ab1e506ca3b5646c

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

Filesize
27KB

MD5
f949fa73445b6c688448028652d7adfd

SHA1
d87faf9ecdae393fd1d00c47fcd8e568ecec1ead

SHA256
e0e6ad97946ee0f7a1f3428c58251e11695838f28915ff13eb699d1efa42ab74

SHA512
72349f756d4f70e537eb007b2cba0890cd38632e53c259e31ee97491dae14574f065beafd7549491a33c730c4b46086f86dd23e3de761ac4c4364c0ac093568a

Download Submit
C:\Users\Default\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Accessories\Notepad.lnk

Filesize
1B

MD5
d1457b72c3fb323a2671125aef3eab5d

SHA1
5bab61eb53176449e25c2c82f172b82cb13ffb9d

SHA256
8a8de823d5ed3e12746a62ef169bcf372be0ca44f0a1236abc35df05d96928e1

SHA512
ca63c07ad35d8c9fb0c92d6146759b122d4ec5d3f67ebe2f30ddb69f9e6c9fd3bf31a5e408b08f1d4d9cd68120cced9e57f010bef3cde97653fed5470da7d1a0

Download Submit
memory/2764-0-0x000007FEF59F3000-0x000007FEF59F4000-memory.dmp

Filesize
4KB

Download
memory/2764-1-0x0000000000A30000-0x0000000000A3E000-memory.dmp

Filesize
56KB

Download
memory/2764-4-0x000007FEF59F0000-0x000007FEF63DC000-memory.dmp

Filesize
9.9MB

Download
memory/2764-971-0x000007FEF59F0000-0x000007FEF63DC000-memory.dmp

Filesize
9.9MB

Download
memory/2768-8-0x00000000013E0000-0x00000000013EE000-memory.dmp

Filesize
56KB

Download
memory/2768-9-0x000007FEF59F0000-0x000007FEF63DC000-memory.dmp

Filesize
9.9MB

Download
memory/2768-10-0x000007FEF59F0000-0x000007FEF63DC000-memory.dmp

Filesize
9.9MB

Download
memory/2768-972-0x000007FEF59F0000-0x000007FEF63DC000-memory.dmp

Filesize
9.9MB

Download
memory/2768-973-0x000007FEF59F0000-0x000007FEF63DC000-memory.dmp

Filesize
9.9MB

Download