Analysis
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max time kernel
121s -
max time network
122s -
platform
windows7_x64 -
resource
win7-20240903-en -
resource tags
arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system -
submitted
16-02-2025 03:34
Behavioral task
behavioral1
Sample
cr4cked vixen.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
cr4cked vixen.exe
Resource
win10v2004-20250211-en
General
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Target
cr4cked vixen.exe
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Size
27KB
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MD5
f3412def470db187f3a9b95ede250e73
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SHA1
65be90a1ad51bec8140cec84b49ea576f68696ee
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SHA256
8036cb4832edad45d44412716e288f9e354c30e88ea79958f66c1cd3c6e3cad4
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SHA512
640ae4dc939696cedeef764284fb1c86391c704d6ab65a6c48af1f4c0f63945ef38b41a3503d0075476aa1b4ba62bc71a73a4f91ece249a9b7432731997ce31f
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SSDEEP
384:4tWZPzzxAm1v85nIruz10CSGGCS6PNsnlyAOy5o91YVoL+82voP:N7zxAmAIruz10CGLkNiho9z682M
Malware Config
Signatures
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Chaos
Ransomware family first seen in June 2021.
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Chaos Ransomware 3 IoCs
resource yara_rule behavioral1/memory/2620-1-0x0000000001160000-0x000000000116E000-memory.dmp family_chaos behavioral1/files/0x0007000000012117-6.dat family_chaos behavioral1/memory/2832-8-0x00000000011E0000-0x00000000011EE000-memory.dmp family_chaos -
Chaos family
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Deletes shadow copies 3 TTPs
Ransomware often targets backup files to inhibit system recovery.
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Modifies boot configuration data using bcdedit 1 TTPs 2 IoCs
pid Process 2624 bcdedit.exe 1984 bcdedit.exe -
pid Process 2180 wbadmin.exe -
Disables Task Manager via registry modification
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Drops startup file 2 IoCs
description ioc Process 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 2832 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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Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3290804112-2823094203-3137964600-1000\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\Local\Microsoft\Windows\History\History.IE5\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\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\HWUYADN5\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\Desktop\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\Searches\desktop.ini svchost.exe File opened for modification C:\Users\Public\Desktop\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Music\desktop.ini svchost.exe File opened for modification C:\Users\Public\Music\desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\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\Admin\AppData\Roaming\Microsoft\Windows\Libraries\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\Default\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Maintenance\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\Feeds Cache\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Downloads\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\Programs\Maintenance\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\Admin\AppData\Roaming\Microsoft\Internet Explorer\Quick Launch\desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Feeds Cache\QJELLEL3\desktop.ini svchost.exe File opened for modification C:\Users\Public\Recorded TV\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\Admin\Saved Games\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\Public\Downloads\desktop.ini svchost.exe File opened for modification C:\Users\Public\Music\Sample Music\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\Public\Pictures\Sample 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\AppData\Local\Microsoft\Feeds Cache\YLJ4V77F\desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Windows\History\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\Documents\desktop.ini svchost.exe File opened for modification C:\Users\Public\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\Public\Videos\Sample Videos\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\Admin\AppData\Local\Microsoft\Feeds Cache\RM4QEUM4\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\Start Menu\Programs\Accessories\Desktop.ini svchost.exe File opened for modification C:\Users\Admin\Favorites\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Pictures\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\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\Content.IE5\WY6T2DFU\desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\Y3Z0XF05\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\Admin\Videos\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\Admin\AppData\Local\Microsoft\Windows Mail\Stationery\Desktop.ini svchost.exe File opened for modification F:\$RECYCLE.BIN\S-1-5-21-3290804112-2823094203-3137964600-1000\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\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Accessories\System Tools\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\Public\Libraries\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\Public\Recorded TV\Sample Media\desktop.ini svchost.exe File opened for modification C:\Users\Public\Videos\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Links\desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Feeds Cache\HE9LBEC2\desktop.ini svchost.exe -
Enumerates connected drives 3 TTPs 23 IoCs
Attempts to read the root path of hard drives other than the default C: drive.
description ioc Process File opened (read-only) \??\I: mstsc.exe File opened (read-only) \??\M: mstsc.exe File opened (read-only) \??\R: mstsc.exe File opened (read-only) \??\S: mstsc.exe File opened (read-only) \??\U: mstsc.exe File opened (read-only) \??\Z: mstsc.exe File opened (read-only) \??\E: mstsc.exe File opened (read-only) \??\L: mstsc.exe File opened (read-only) \??\P: mstsc.exe File opened (read-only) \??\Q: mstsc.exe File opened (read-only) \??\W: mstsc.exe File opened (read-only) \??\X: mstsc.exe File opened (read-only) \??\A: mstsc.exe File opened (read-only) \??\J: mstsc.exe File opened (read-only) \??\K: mstsc.exe File opened (read-only) \??\T: mstsc.exe File opened (read-only) \??\Y: mstsc.exe File opened (read-only) \??\B: mstsc.exe File opened (read-only) \??\G: mstsc.exe File opened (read-only) \??\H: mstsc.exe File opened (read-only) \??\N: mstsc.exe File opened (read-only) \??\O: mstsc.exe File opened (read-only) \??\V: mstsc.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Interacts with shadow copies 3 TTPs 1 IoCs
Shadow copies are often targeted by ransomware to inhibit system recovery.
pid Process 2028 vssadmin.exe -
Opens file in notepad (likely ransom note) 1 IoCs
pid Process 2120 NOTEPAD.EXE -
Suspicious behavior: AddClipboardFormatListener 1 IoCs
pid Process 2832 svchost.exe -
Suspicious behavior: EnumeratesProcesses 6 IoCs
pid Process 2620 cr4cked vixen.exe 2620 cr4cked vixen.exe 2620 cr4cked vixen.exe 2832 svchost.exe 2832 svchost.exe 2832 svchost.exe -
Suspicious use of AdjustPrivilegeToken 48 IoCs
description pid Process Token: SeDebugPrivilege 2620 cr4cked vixen.exe Token: SeDebugPrivilege 2832 svchost.exe Token: SeBackupPrivilege 2864 vssvc.exe Token: SeRestorePrivilege 2864 vssvc.exe Token: SeAuditPrivilege 2864 vssvc.exe Token: SeIncreaseQuotaPrivilege 1084 WMIC.exe Token: SeSecurityPrivilege 1084 WMIC.exe Token: SeTakeOwnershipPrivilege 1084 WMIC.exe Token: SeLoadDriverPrivilege 1084 WMIC.exe Token: SeSystemProfilePrivilege 1084 WMIC.exe Token: SeSystemtimePrivilege 1084 WMIC.exe Token: SeProfSingleProcessPrivilege 1084 WMIC.exe Token: SeIncBasePriorityPrivilege 1084 WMIC.exe Token: SeCreatePagefilePrivilege 1084 WMIC.exe Token: SeBackupPrivilege 1084 WMIC.exe Token: SeRestorePrivilege 1084 WMIC.exe Token: SeShutdownPrivilege 1084 WMIC.exe Token: SeDebugPrivilege 1084 WMIC.exe Token: SeSystemEnvironmentPrivilege 1084 WMIC.exe Token: SeRemoteShutdownPrivilege 1084 WMIC.exe Token: SeUndockPrivilege 1084 WMIC.exe Token: SeManageVolumePrivilege 1084 WMIC.exe Token: 33 1084 WMIC.exe Token: 34 1084 WMIC.exe Token: 35 1084 WMIC.exe Token: SeIncreaseQuotaPrivilege 1084 WMIC.exe Token: SeSecurityPrivilege 1084 WMIC.exe Token: SeTakeOwnershipPrivilege 1084 WMIC.exe Token: SeLoadDriverPrivilege 1084 WMIC.exe Token: SeSystemProfilePrivilege 1084 WMIC.exe Token: SeSystemtimePrivilege 1084 WMIC.exe Token: SeProfSingleProcessPrivilege 1084 WMIC.exe Token: SeIncBasePriorityPrivilege 1084 WMIC.exe Token: SeCreatePagefilePrivilege 1084 WMIC.exe Token: SeBackupPrivilege 1084 WMIC.exe Token: SeRestorePrivilege 1084 WMIC.exe Token: SeShutdownPrivilege 1084 WMIC.exe Token: SeDebugPrivilege 1084 WMIC.exe Token: SeSystemEnvironmentPrivilege 1084 WMIC.exe Token: SeRemoteShutdownPrivilege 1084 WMIC.exe Token: SeUndockPrivilege 1084 WMIC.exe Token: SeManageVolumePrivilege 1084 WMIC.exe Token: 33 1084 WMIC.exe Token: 34 1084 WMIC.exe Token: 35 1084 WMIC.exe Token: SeBackupPrivilege 2772 wbengine.exe Token: SeRestorePrivilege 2772 wbengine.exe Token: SeSecurityPrivilege 2772 wbengine.exe -
Suspicious use of WriteProcessMemory 30 IoCs
description pid Process procid_target PID 2620 wrote to memory of 2832 2620 cr4cked vixen.exe 30 PID 2620 wrote to memory of 2832 2620 cr4cked vixen.exe 30 PID 2620 wrote to memory of 2832 2620 cr4cked vixen.exe 30 PID 2832 wrote to memory of 2748 2832 svchost.exe 31 PID 2832 wrote to memory of 2748 2832 svchost.exe 31 PID 2832 wrote to memory of 2748 2832 svchost.exe 31 PID 2748 wrote to memory of 2028 2748 cmd.exe 33 PID 2748 wrote to memory of 2028 2748 cmd.exe 33 PID 2748 wrote to memory of 2028 2748 cmd.exe 33 PID 2748 wrote to memory of 1084 2748 cmd.exe 36 PID 2748 wrote to memory of 1084 2748 cmd.exe 36 PID 2748 wrote to memory of 1084 2748 cmd.exe 36 PID 2832 wrote to memory of 2508 2832 svchost.exe 38 PID 2832 wrote to memory of 2508 2832 svchost.exe 38 PID 2832 wrote to memory of 2508 2832 svchost.exe 38 PID 2508 wrote to memory of 2624 2508 cmd.exe 40 PID 2508 wrote to memory of 2624 2508 cmd.exe 40 PID 2508 wrote to memory of 2624 2508 cmd.exe 40 PID 2508 wrote to memory of 1984 2508 cmd.exe 41 PID 2508 wrote to memory of 1984 2508 cmd.exe 41 PID 2508 wrote to memory of 1984 2508 cmd.exe 41 PID 2832 wrote to memory of 1924 2832 svchost.exe 42 PID 2832 wrote to memory of 1924 2832 svchost.exe 42 PID 2832 wrote to memory of 1924 2832 svchost.exe 42 PID 1924 wrote to memory of 2180 1924 cmd.exe 44 PID 1924 wrote to memory of 2180 1924 cmd.exe 44 PID 1924 wrote to memory of 2180 1924 cmd.exe 44 PID 2832 wrote to memory of 2120 2832 svchost.exe 49 PID 2832 wrote to memory of 2120 2832 svchost.exe 49 PID 2832 wrote to memory of 2120 2832 svchost.exe 49 -
Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
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Uses Volume Shadow Copy service COM API
The Volume Shadow Copy service is used to manage backups/snapshots.
Processes
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C:\Users\Admin\AppData\Local\Temp\cr4cked vixen.exe"C:\Users\Admin\AppData\Local\Temp\cr4cked vixen.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2620 -
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:2832 -
C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /C vssadmin delete shadows /all /quiet & wmic shadowcopy delete3⤵
- Suspicious use of WriteProcessMemory
PID:2748 -
C:\Windows\system32\vssadmin.exevssadmin delete shadows /all /quiet4⤵
- Interacts with shadow copies
PID:2028
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C:\Windows\System32\Wbem\WMIC.exewmic shadowcopy delete4⤵
- Suspicious use of AdjustPrivilegeToken
PID:1084
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C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /C bcdedit /set {default} bootstatuspolicy ignoreallfailures & bcdedit /set {default} recoveryenabled no3⤵
- Suspicious use of WriteProcessMemory
PID:2508 -
C:\Windows\system32\bcdedit.exebcdedit /set {default} bootstatuspolicy ignoreallfailures4⤵
- Modifies boot configuration data using bcdedit
PID:2624
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C:\Windows\system32\bcdedit.exebcdedit /set {default} recoveryenabled no4⤵
- Modifies boot configuration data using bcdedit
PID:1984
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C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /C wbadmin delete catalog -quiet3⤵
- Suspicious use of WriteProcessMemory
PID:1924 -
C:\Windows\system32\wbadmin.exewbadmin delete catalog -quiet4⤵
- Deletes backup catalog
PID:2180
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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:2120
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C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
PID:2864
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C:\Windows\system32\wbengine.exe"C:\Windows\system32\wbengine.exe"1⤵
- Suspicious use of AdjustPrivilegeToken
PID:2772
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C:\Windows\System32\vdsldr.exeC:\Windows\System32\vdsldr.exe -Embedding1⤵PID:2892
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C:\Windows\System32\vds.exeC:\Windows\System32\vds.exe1⤵PID:2588
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C:\Windows\system32\mstsc.exe"C:\Windows\system32\mstsc.exe"1⤵
- Enumerates connected drives
PID:1016
Network
MITRE ATT&CK Enterprise v15
Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Defense Evasion
Direct Volume Access
1Indicator Removal
3File Deletion
3Modify Registry
1Credential Access
Credentials from Password Stores
1Credentials from Web Browsers
1Unsecured Credentials
1Credentials In Files
1Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
510B
MD5ca208aa04528e5b0d7fdb7691ae0851a
SHA1b8599c39668429feefa6bf2b9fac4299219fb7d1
SHA256cddf5d263ef9f30532f6a69dd5424dc6ae2082a7f2b3610d787b1590da55e328
SHA5126b0e45ba3b9483830ce91a82b99564931bbab9439deddd4006c81d9d9d9dcefa8708c5b5b853858c628ef27f290a85334eb598802e1ac852cc2f489523b4001e
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Filesize
27KB
MD5f3412def470db187f3a9b95ede250e73
SHA165be90a1ad51bec8140cec84b49ea576f68696ee
SHA2568036cb4832edad45d44412716e288f9e354c30e88ea79958f66c1cd3c6e3cad4
SHA512640ae4dc939696cedeef764284fb1c86391c704d6ab65a6c48af1f4c0f63945ef38b41a3503d0075476aa1b4ba62bc71a73a4f91ece249a9b7432731997ce31f
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Filesize
1B
MD5d1457b72c3fb323a2671125aef3eab5d
SHA15bab61eb53176449e25c2c82f172b82cb13ffb9d
SHA2568a8de823d5ed3e12746a62ef169bcf372be0ca44f0a1236abc35df05d96928e1
SHA512ca63c07ad35d8c9fb0c92d6146759b122d4ec5d3f67ebe2f30ddb69f9e6c9fd3bf31a5e408b08f1d4d9cd68120cced9e57f010bef3cde97653fed5470da7d1a0