Analysis
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max time kernel
93s -
max time network
149s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
14-01-2025 13:56
Behavioral task
behavioral1
Sample
2025-01-13_f486b46ddbd248c5182799957e6f469b_chaos_destroyer_wannacry.exe
Resource
win7-20241010-en
Behavioral task
behavioral2
Sample
2025-01-13_f486b46ddbd248c5182799957e6f469b_chaos_destroyer_wannacry.exe
Resource
win10v2004-20241007-en
General
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Target
2025-01-13_f486b46ddbd248c5182799957e6f469b_chaos_destroyer_wannacry.exe
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Size
22KB
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MD5
f486b46ddbd248c5182799957e6f469b
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SHA1
2a58267aa820634e8ec5c395f797dc612ae267d4
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SHA256
82292c97320930e05de815d6d6ecd6e62f5dca9bdfbf8c4f700cbdc8318daea2
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SHA512
9e24a7c94b4c795d56f6ec17f3c21d364bd6e134b6480a6dd751e09fe5e358c32a33027005c1b0a95f98330824176e095a663077a972239658863339d24e61a4
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SSDEEP
384:G3MLWHn3kIxfrD5SWPpO+sBIgOk+JFr91Czr4PeC:qn3kIOWPpDOiFr9ikeC
Malware Config
Extracted
C:\Users\Admin\Desktop\read_it.txt
Signatures
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Chaos
Ransomware family first seen in June 2021.
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Chaos Ransomware 2 IoCs
resource yara_rule behavioral2/memory/4868-1-0x0000000000300000-0x000000000030C000-memory.dmp family_chaos behavioral2/files/0x0008000000023c94-6.dat family_chaos -
Chaos family
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Checks computer location settings 2 TTPs 2 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\Control Panel\International\Geo\Nation 2025-01-13_f486b46ddbd248c5182799957e6f469b_chaos_destroyer_wannacry.exe Key value queried \REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\Control Panel\International\Geo\Nation svchost.exe -
Drops startup file 3 IoCs
description ioc Process File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\svchost.url svchost.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\desktop.ini svchost.exe File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\read_it.txt svchost.exe -
Executes dropped EXE 1 IoCs
pid Process 4704 svchost.exe -
Reads user/profile data of web browsers 3 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
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Drops desktop.ini file(s) 34 IoCs
description ioc Process File opened for modification F:\$RECYCLE.BIN\S-1-5-21-2878641211-696417878-3864914810-1000\desktop.ini svchost.exe File opened for modification C:\Users\Public\Pictures\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Favorites\Links\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Searches\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\Roaming\Microsoft\Windows\Start Menu\Programs\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Desktop\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Downloads\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Pictures\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Pictures\Camera Roll\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\Public\Desktop\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Contacts\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\Libraries\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\Public\Videos\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\Public\Documents\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\AppData\Roaming\Microsoft\Windows\SendTo\desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Maintenance\Desktop.ini svchost.exe File opened for modification C:\Users\Admin\Videos\desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Accessibility\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\Public\Music\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Links\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Pictures\Saved Pictures\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Saved Games\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Favorites\desktop.ini svchost.exe File opened for modification C:\Users\Admin\OneDrive\desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\AccountPictures\desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\System Tools\Desktop.ini svchost.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Modifies registry class 1 IoCs
description ioc Process Key created \REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000_Classes\Local Settings svchost.exe -
Opens file in notepad (likely ransom note) 1 IoCs
pid Process 1844 NOTEPAD.EXE -
Suspicious behavior: AddClipboardFormatListener 1 IoCs
pid Process 4704 svchost.exe -
Suspicious behavior: EnumeratesProcesses 51 IoCs
pid Process 4868 2025-01-13_f486b46ddbd248c5182799957e6f469b_chaos_destroyer_wannacry.exe 4868 2025-01-13_f486b46ddbd248c5182799957e6f469b_chaos_destroyer_wannacry.exe 4868 2025-01-13_f486b46ddbd248c5182799957e6f469b_chaos_destroyer_wannacry.exe 4868 2025-01-13_f486b46ddbd248c5182799957e6f469b_chaos_destroyer_wannacry.exe 4868 2025-01-13_f486b46ddbd248c5182799957e6f469b_chaos_destroyer_wannacry.exe 4868 2025-01-13_f486b46ddbd248c5182799957e6f469b_chaos_destroyer_wannacry.exe 4868 2025-01-13_f486b46ddbd248c5182799957e6f469b_chaos_destroyer_wannacry.exe 4868 2025-01-13_f486b46ddbd248c5182799957e6f469b_chaos_destroyer_wannacry.exe 4868 2025-01-13_f486b46ddbd248c5182799957e6f469b_chaos_destroyer_wannacry.exe 4868 2025-01-13_f486b46ddbd248c5182799957e6f469b_chaos_destroyer_wannacry.exe 4868 2025-01-13_f486b46ddbd248c5182799957e6f469b_chaos_destroyer_wannacry.exe 4868 2025-01-13_f486b46ddbd248c5182799957e6f469b_chaos_destroyer_wannacry.exe 4868 2025-01-13_f486b46ddbd248c5182799957e6f469b_chaos_destroyer_wannacry.exe 4868 2025-01-13_f486b46ddbd248c5182799957e6f469b_chaos_destroyer_wannacry.exe 4868 2025-01-13_f486b46ddbd248c5182799957e6f469b_chaos_destroyer_wannacry.exe 4868 2025-01-13_f486b46ddbd248c5182799957e6f469b_chaos_destroyer_wannacry.exe 4868 2025-01-13_f486b46ddbd248c5182799957e6f469b_chaos_destroyer_wannacry.exe 4868 2025-01-13_f486b46ddbd248c5182799957e6f469b_chaos_destroyer_wannacry.exe 4868 2025-01-13_f486b46ddbd248c5182799957e6f469b_chaos_destroyer_wannacry.exe 4868 2025-01-13_f486b46ddbd248c5182799957e6f469b_chaos_destroyer_wannacry.exe 4868 2025-01-13_f486b46ddbd248c5182799957e6f469b_chaos_destroyer_wannacry.exe 4868 2025-01-13_f486b46ddbd248c5182799957e6f469b_chaos_destroyer_wannacry.exe 4868 2025-01-13_f486b46ddbd248c5182799957e6f469b_chaos_destroyer_wannacry.exe 4868 2025-01-13_f486b46ddbd248c5182799957e6f469b_chaos_destroyer_wannacry.exe 4868 2025-01-13_f486b46ddbd248c5182799957e6f469b_chaos_destroyer_wannacry.exe 4704 svchost.exe 4704 svchost.exe 4704 svchost.exe 4704 svchost.exe 4704 svchost.exe 4704 svchost.exe 4704 svchost.exe 4704 svchost.exe 4704 svchost.exe 4704 svchost.exe 4704 svchost.exe 4704 svchost.exe 4704 svchost.exe 4704 svchost.exe 4704 svchost.exe 4704 svchost.exe 4704 svchost.exe 4704 svchost.exe 4704 svchost.exe 4704 svchost.exe 4704 svchost.exe 4704 svchost.exe 4704 svchost.exe 4704 svchost.exe 4704 svchost.exe 4704 svchost.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 4868 2025-01-13_f486b46ddbd248c5182799957e6f469b_chaos_destroyer_wannacry.exe Token: SeDebugPrivilege 4704 svchost.exe -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 4868 wrote to memory of 4704 4868 2025-01-13_f486b46ddbd248c5182799957e6f469b_chaos_destroyer_wannacry.exe 85 PID 4868 wrote to memory of 4704 4868 2025-01-13_f486b46ddbd248c5182799957e6f469b_chaos_destroyer_wannacry.exe 85 PID 4704 wrote to memory of 1844 4704 svchost.exe 92 PID 4704 wrote to memory of 1844 4704 svchost.exe 92
Processes
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C:\Users\Admin\AppData\Local\Temp\2025-01-13_f486b46ddbd248c5182799957e6f469b_chaos_destroyer_wannacry.exe"C:\Users\Admin\AppData\Local\Temp\2025-01-13_f486b46ddbd248c5182799957e6f469b_chaos_destroyer_wannacry.exe"1⤵
- Checks computer location settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4868 -
C:\Users\Admin\AppData\Roaming\svchost.exe"C:\Users\Admin\AppData\Roaming\svchost.exe"2⤵
- Checks computer location settings
- Drops startup file
- Executes dropped EXE
- Drops desktop.ini file(s)
- Modifies registry class
- Suspicious behavior: AddClipboardFormatListener
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4704 -
C:\Windows\system32\NOTEPAD.EXE"C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\AppData\Roaming\read_it.txt3⤵
- Opens file in notepad (likely ransom note)
PID:1844
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
22KB
MD5f486b46ddbd248c5182799957e6f469b
SHA12a58267aa820634e8ec5c395f797dc612ae267d4
SHA25682292c97320930e05de815d6d6ecd6e62f5dca9bdfbf8c4f700cbdc8318daea2
SHA5129e24a7c94b4c795d56f6ec17f3c21d364bd6e134b6480a6dd751e09fe5e358c32a33027005c1b0a95f98330824176e095a663077a972239658863339d24e61a4
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Filesize
787B
MD584ccbf564232c1c923d3c6f9ebe230fd
SHA1e56b20d2a809441beb73d295f0c3c8e5f7164315
SHA2567a70a15dbebc587a3a421f07d12e799a223a23c50eeeaf0e800e996d10ff7dd7
SHA512e54f5eb12057cc14d355e95cc81f0746e373c2f16c12244a47fe08338bf53aa22057d77a9b59b19e97d040e4147b1ea5dc673cd5a1c49f52856f2df150f42353