Resubmissions
23/03/2025, 02:38
250323-c4ywva1l171010/03/2025, 05:32
250310-f8b5esvjv51007/11/2024, 02:24
241107-cvwp5atepk1006/11/2024, 12:51
241106-p3t8gszhkf10Analysis
- max time kernel
116s - max time network
119s - platform
windows10-2004_x64 - resource
win10v2004-20241007-en - resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system - submitted
07/11/2024, 02:24
Behavioral task
behavioral1
Sample
wt.exe
Resource
win7-20240903-en
windows7-x64
16 signatures
150 seconds
Behavioral task
behavioral2
Sample
wt.exe
Resource
win10v2004-20241007-en
windows10-2004-x64
20 signatures
150 seconds
Errors
Reason
Machine shutdown
General
- Target wt.exe
- Size 23KB
- Sample241107-cvwp5atepk
- SHA256 4a99edc4912bb72864cf424c67b500187079ffb5bee14d6851800ebff9a56808
- MD5 9cbcaed1a71dca5fa2fcb5fe41e0d083
- SHA1 699923b980e8b8677ab29137dec889cb4c7a87da
- SHA512 bab13f8992a4c692412e0e15567693df36d02e6bf986bbadf9c4ff5b285b57853c6a9eafc3250cd1bdf33977428ddfa6c783080d1430e5593a181add28f19f2f
- SSDEEP 384:I3Mg/bqo2f+B3kXSP1/pYVvobPJ/r91C9zBq92BewD9:2qo2gtxpjh/r9uzs9WewD9
- MD5 SHA1 SHA512 SSDEEP
Score
10/10
Malware Config
Extracted
Path
-
C:\Users\Admin\Documents\read_it.txt
-
chaos
Ransom Note
- ----> Chaos is multi language ransomware. Translate your note to any language <---- 당신의 모든 파일이 암호화되었습니다 당신의 컴퓨터가 랜섬웨어 바이러스에 감염되었습니다. 당신이 원하지 않든 파일이 암호화 되었습니다. 당신은 당신의 파일들을 저희의 도움 없이도 해독할 수 있습니다. 파일을 되찾으려면 어떻게 해야 하나요?: 복호화 프로그램을 구매할 수 있습니다 복호화 프로그램을 사용하면 모든 데이터를 복구할 수 있습니다. 파일 복호화 소프트웨어의 가격은 $1,500입니다. 결제는 비트코인으로만 가능합니다. 결제는 어떻게 하나요, 비트코인은 어디서 보내나요? 비트코인 구매는 국가마다 다르므로 빨리 구글 검색을 하는 것이 가장 좋습니다 비트코인 구매 방법을 알아보세요. 많은 고객이 이러한 사이트가 빠르고 안정적이라고 보고했습니다: 코인마마 - hxxps://www.coinmama.com 비트판다 - hxxps://www.bitpanda.com 보낼 비트코인: 0.1473766 BTC 비트코인 주소: bc1qlnzcep4l4ac0ttdrq7awxev9ehu465f2vpt9x0
Signatures
- Chaos
Ransomware family first seen in June 2021.
- Chaos Ransomware 2 IoCs
resource yara_rule behavioral2/memory/2304-1-0x00000000004A0000-0x00000000004AC000-memory.dmp family_chaos behavioral2/files/0x000400000001e0c9-6.dat family_chaos - Chaos family
- 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 wt.exe Key value queried \REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\Control Panel\International\Geo\Nation svchost.exe - Drops startup file 6 IoCs
description ioc Process File opened for modification \??\c:\users\admin\appdata\roaming\microsoft\windows\start menu\programs\startup\read_it.txt taskmgr.exe File opened for modification \??\c:\users\admin\appdata\roaming\microsoft\windows\start menu\programs\startup\svchost.url taskmgr.exe 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 File opened for modification \??\c:\users\admin\appdata\roaming\microsoft\windows\start menu\programs\startup\desktop.ini.zjcu taskmgr.exe - Executes dropped EXE 1 IoCs
pid Process 5076 svchost.exe - Reads user/profile data of web browsers 3 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
- Drops desktop.ini file(s) 34 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\Downloads\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\Videos\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\Pictures\Camera Roll\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Saved Games\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Searches\desktop.ini svchost.exe File opened for modification C:\Users\Public\Documents\desktop.ini svchost.exe 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\Admin\Music\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\Administrative Tools\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\AccountPictures\desktop.ini svchost.exe File opened for modification C:\Users\Public\Pictures\desktop.ini svchost.exe File opened for modification C:\Users\Public\Desktop\desktop.ini svchost.exe File opened for modification C:\Users\Public\Music\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Desktop\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Favorites\Links\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\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\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Contacts\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Documents\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\AppData\Roaming\Microsoft\Windows\Start Menu\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\Maintenance\Desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\System Tools\Desktop.ini svchost.exe File opened for modification C:\Users\Admin\Links\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Pictures\desktop.ini svchost.exe File opened for modification C:\Users\Admin\OneDrive\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Favorites\desktop.ini svchost.exe - Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Checks SCSI registry key(s) 3 TTPs 3 IoCs
SCSI information is often read in order to detect sandboxing environments.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_WDC&Prod_WDS100T2B0A\4&215468a5&0&000000 taskmgr.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_WDC&Prod_WDS100T2B0A\4&215468a5&0&000000\Properties\{b725f130-47ef-101a-a5f1-02608c9eebac}\000A taskmgr.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_WDC&Prod_WDS100T2B0A\4&215468a5&0&000000\FriendlyName taskmgr.exe - Modifies data under HKEY_USERS 15 IoCs
description ioc Process Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Accent LogonUI.exe Set value (data) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Accent\AccentPalette = a6d8ff0076b9ed00429ce3000078d700005a9e000042750000264200f7630c00 LogonUI.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM LogonUI.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\AccentColor = "4292311040" LogonUI.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationColor = "3288365271" LogonUI.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Themes\History LogonUI.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Accent\StartColorMenu = "4288567808" LogonUI.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationColorBalance = "89" LogonUI.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationAfterglow = "3288365271" LogonUI.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationBlurBalance = "1" LogonUI.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Themes\History\AutoColor = "0" LogonUI.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Accent\AccentColorMenu = "4292311040" LogonUI.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationAfterglowBalance = "10" LogonUI.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\EnableWindowColorization = "206" LogonUI.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationGlassAttribute = "1" LogonUI.exe - 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 1968 NOTEPAD.EXE - Suspicious behavior: AddClipboardFormatListener 1 IoCs
pid Process 5076 svchost.exe - Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 2304 wt.exe 2304 wt.exe 2304 wt.exe 2304 wt.exe 2304 wt.exe 2304 wt.exe 2304 wt.exe 2304 wt.exe 2304 wt.exe 2304 wt.exe 2304 wt.exe 2304 wt.exe 2304 wt.exe 2304 wt.exe 2304 wt.exe 2304 wt.exe 2304 wt.exe 2304 wt.exe 2304 wt.exe 2304 wt.exe 2304 wt.exe 2304 wt.exe 2304 wt.exe 2304 wt.exe 2304 wt.exe 5076 svchost.exe 5076 svchost.exe 5076 svchost.exe 5076 svchost.exe 5076 svchost.exe 5076 svchost.exe 5076 svchost.exe 5076 svchost.exe 5076 svchost.exe 5076 svchost.exe 5076 svchost.exe 5076 svchost.exe 5076 svchost.exe 5076 svchost.exe 5076 svchost.exe 5076 svchost.exe 5076 svchost.exe 5076 svchost.exe 5076 svchost.exe 5076 svchost.exe 5076 svchost.exe 5076 svchost.exe 5076 svchost.exe 5076 svchost.exe 3408 taskmgr.exe 3408 taskmgr.exe 3408 taskmgr.exe 3408 taskmgr.exe 3408 taskmgr.exe 3408 taskmgr.exe 3408 taskmgr.exe 3408 taskmgr.exe 3408 taskmgr.exe 3408 taskmgr.exe 3408 taskmgr.exe 3408 taskmgr.exe 3408 taskmgr.exe 3408 taskmgr.exe 3408 taskmgr.exe - Suspicious use of AdjustPrivilegeToken 7 IoCs
description pid Process Token: SeDebugPrivilege 2304 wt.exe Token: SeDebugPrivilege 5076 svchost.exe Token: SeDebugPrivilege 3408 taskmgr.exe Token: SeSystemProfilePrivilege 3408 taskmgr.exe Token: SeCreateGlobalPrivilege 3408 taskmgr.exe Token: SeSecurityPrivilege 3408 taskmgr.exe Token: SeTakeOwnershipPrivilege 3408 taskmgr.exe - Suspicious use of FindShellTrayWindow 64 IoCs
pid Process 3408 taskmgr.exe 3408 taskmgr.exe 3408 taskmgr.exe 3408 taskmgr.exe 3408 taskmgr.exe 3408 taskmgr.exe 3408 taskmgr.exe 3408 taskmgr.exe 3408 taskmgr.exe 3408 taskmgr.exe 3408 taskmgr.exe 3408 taskmgr.exe 3408 taskmgr.exe 3408 taskmgr.exe 3408 taskmgr.exe 3408 taskmgr.exe 3408 taskmgr.exe 3408 taskmgr.exe 3408 taskmgr.exe 3408 taskmgr.exe 3408 taskmgr.exe 3408 taskmgr.exe 3408 taskmgr.exe 3408 taskmgr.exe 3408 taskmgr.exe 3408 taskmgr.exe 3408 taskmgr.exe 3408 taskmgr.exe 3408 taskmgr.exe 3408 taskmgr.exe 3408 taskmgr.exe 3408 taskmgr.exe 3408 taskmgr.exe 3408 taskmgr.exe 3408 taskmgr.exe 3408 taskmgr.exe 3408 taskmgr.exe 3408 taskmgr.exe 3408 taskmgr.exe 3408 taskmgr.exe 3408 taskmgr.exe 3408 taskmgr.exe 3408 taskmgr.exe 3408 taskmgr.exe 3408 taskmgr.exe 3408 taskmgr.exe 3408 taskmgr.exe 3408 taskmgr.exe 3408 taskmgr.exe 3408 taskmgr.exe 3408 taskmgr.exe 3408 taskmgr.exe 3408 taskmgr.exe 3408 taskmgr.exe 3408 taskmgr.exe 3408 taskmgr.exe 3408 taskmgr.exe 3408 taskmgr.exe 3408 taskmgr.exe 3408 taskmgr.exe 3408 taskmgr.exe 3408 taskmgr.exe 3408 taskmgr.exe 3408 taskmgr.exe - Suspicious use of SendNotifyMessage 64 IoCs
pid Process 3408 taskmgr.exe 3408 taskmgr.exe 3408 taskmgr.exe 3408 taskmgr.exe 3408 taskmgr.exe 3408 taskmgr.exe 3408 taskmgr.exe 3408 taskmgr.exe 3408 taskmgr.exe 3408 taskmgr.exe 3408 taskmgr.exe 3408 taskmgr.exe 3408 taskmgr.exe 3408 taskmgr.exe 3408 taskmgr.exe 3408 taskmgr.exe 3408 taskmgr.exe 3408 taskmgr.exe 3408 taskmgr.exe 3408 taskmgr.exe 3408 taskmgr.exe 3408 taskmgr.exe 3408 taskmgr.exe 3408 taskmgr.exe 3408 taskmgr.exe 3408 taskmgr.exe 3408 taskmgr.exe 3408 taskmgr.exe 3408 taskmgr.exe 3408 taskmgr.exe 3408 taskmgr.exe 3408 taskmgr.exe 3408 taskmgr.exe 3408 taskmgr.exe 3408 taskmgr.exe 3408 taskmgr.exe 3408 taskmgr.exe 3408 taskmgr.exe 3408 taskmgr.exe 3408 taskmgr.exe 3408 taskmgr.exe 3408 taskmgr.exe 3408 taskmgr.exe 3408 taskmgr.exe 3408 taskmgr.exe 3408 taskmgr.exe 3408 taskmgr.exe 3408 taskmgr.exe 3408 taskmgr.exe 3408 taskmgr.exe 3408 taskmgr.exe 3408 taskmgr.exe 3408 taskmgr.exe 3408 taskmgr.exe 3408 taskmgr.exe 3408 taskmgr.exe 3408 taskmgr.exe 3408 taskmgr.exe 3408 taskmgr.exe 3408 taskmgr.exe 3408 taskmgr.exe 3408 taskmgr.exe 3408 taskmgr.exe 3408 taskmgr.exe - Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 2932 LogonUI.exe - Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 2304 wrote to memory of 5076 2304 wt.exe 89 PID 2304 wrote to memory of 5076 2304 wt.exe 89 PID 5076 wrote to memory of 1968 5076 svchost.exe 95 PID 5076 wrote to memory of 1968 5076 svchost.exe 95
Processes
-
C:\Users\Admin\AppData\Local\Temp\wt.exe"C:\Users\Admin\AppData\Local\Temp\wt.exe"1⤵
- Checks computer location settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2304 -
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:5076 -
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:1968
-
-
-
C:\Windows\system32\taskmgr.exe"C:\Windows\system32\taskmgr.exe" /41⤵
- Drops startup file
- Checks SCSI registry key(s)
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
PID:3408
-
C:\Windows\system32\LogonUI.exe"LogonUI.exe" /flags:0x4 /state0:0xa3897855 /state1:0x41c64e6d1⤵
- Modifies data under HKEY_USERS
- Suspicious use of SetWindowsHookEx
PID:2932
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\desktop.ini.zjcu
- Size 436B
- SHA256 fd1db4015947d805a65c4451328dda0dd910b74ecc58e66725bbbd2c08e82daa
- MD5 484ef3bdcae52b5ab0327bd0f57dbab7
- SHA1 6147ea7a42b06c3b8ee7f238becc1f9fdfef6b5d
- SHA512 ab1c49488f1219e88b4f4eb306e152778cadce3867bd732fc11a0271082fb4ed7d0594de35b7d913a9fe1197c4887754e4543043fba0553c3fe448c0894911b5
- MD5 SHA1 SHA512
- Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\svchost.url
- Size 142B
- SHA256 0a3bdc40dc0d243784bc5fa887b79110350b3d3200684f3ba99880fcea40e3b8
- MD5 1a09a38485cbf1d59c29d8e3213e1ab9
- SHA1 9cbe6ebd07b13a0d4b2565dc15a273629aa97251
- SHA512 a33c228196a4b3f14e40ac6ccb6c43002de28063594c472db852bedac20a6725f4e7601b9f32516e2c6bea35f83746973b3f1d200d9e5d668bda7553b62ac616
- MD5 SHA1 SHA512
- Path C:\Users\Admin\AppData\Roaming\svchost.exe
- Size 23KB
- SHA256 4a99edc4912bb72864cf424c67b500187079ffb5bee14d6851800ebff9a56808
- MD5 9cbcaed1a71dca5fa2fcb5fe41e0d083
- SHA1 699923b980e8b8677ab29137dec889cb4c7a87da
- SHA512 bab13f8992a4c692412e0e15567693df36d02e6bf986bbadf9c4ff5b285b57853c6a9eafc3250cd1bdf33977428ddfa6c783080d1430e5593a181add28f19f2f
- SSDEEP 384:I3Mg/bqo2f+B3kXSP1/pYVvobPJ/r91C9zBq92BewD9:2qo2gtxpjh/r9uzs9WewD9
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\Documents\read_it.txt
- Size 1KB
- SHA256 c58ae5db59068e59c319fd721a3d0d9174fdca70ad1e37859970dfabc0de49b2
- MD5 691dabf88ce8bf585b6554d8f0ff880e
- SHA1 543414f88078a7a5520593e24119253f2b7fc95c
- SHA512 0017de1d0780f6f33d8ea630ef2ca1bdc6b8836cea78647cd640f0e0dbc84108cae2e2b46ea03c14fe0bec48010fc1b437c1019f99d63ad60dc99108dfe58f8f
- MD5 SHA1 SHA512