d2100ffe58eb50c05d97a3da738ccd1f0be9672c057c26a10140af80595b78c3

Resubmissions

15-12-2024 15:40

241215-s4m3caylfs 10

14-12-2024 13:26

241214-qphg7stkay 10

Analysis

max time kernel
25s
max time network
16s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
15-12-2024 15:40

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General

Target

Gosjeufon.cpl.exe
Size

881KB
MD5

9049faba5517305c44bd5f28398fb6b9
SHA1

036c6b32f3e7d7d689c9b4d482091eebcc669bfa
SHA256

d2100ffe58eb50c05d97a3da738ccd1f0be9672c057c26a10140af80595b78c3
SHA512

65a33506f970675775468f80b94a3f8bb2d3672e6fb08fc9f2e5107020095ca6d4bca927c59b72488e2ef4208a64a56ced7511ea14c0445cd50ea3ff9b827f6a
SSDEEP

12288:I2wMm7l55+OeO+OeNhBBhhBBaELPA081o9baXpL3K+HDFgZUid4X9dCU5+Kazw4t:I2wMm7lfCIL3K+gY9dfcw4h3DX9X1

Score

10^/10

credential_access defense_evasion discovery execution impact persistence ransomware spyware stealer

Malware Config

Extracted

Path

C:\Users\Admin\AppData\Local\Temp\Decryptfiles.txt

Ransom Note

ATTENTION! Don't worry, you can return your files! All your files like photos, videos and other important documents are encrypted with a strong encryption algorithm and unique key. The only method of recovering files is to purchase a decrypt tool and your key. Do not try to recover your files without a decrypt tool, you may damage them making them impossible to recover we advise you contact us in less than 72 hours, otherwise there is a possibility that your files will never be returned. We will not wait for your letter for a long time, mail can be abused, we are moving on, hurry up with the decision. Check your email 'Spam' or 'Junk' foeder if you don't get answer within 6 hours. Contact us email :[email protected] -> [email protected] Attach this file in the email. ID :1E369F70621250158DC152C921EDE3F4299BB986BDB0FDF5592871643E85012D1116E04299B9123920DE3B541AB47FBF1C637A5999CB254F006F786FCDC748677B07A416EAFFF99C3F0FACF26B70905DDA320EEF0D58451A4845A454911246DC2AB0CC9D613CD5A1B73DEFB788084F81BCF4B2463A601D3BD9C10C2DF5CB6E36F3FE4F7B63064D8F8E41DD83FE7ACFC1DDC3BBA3190CAE0E732A029C6D26C18D1B0A8820307FDA04F3F846EBA9D51150475CEA100FBA4F165BE4639AA436ED9683CBBFE20B42D12A93106A9F50D569A2CDE876BC46680812953E5A4E19A189AF35E6934385C1DECB6126C2C658C015D1E860143C251D7A13DF6E8F010159AA9E75097D45A3A454D24BC62C7F2780B2116FD2B5223AD7F0B855FD5A6E11C3D9B19839F0E2AA81D607CDA7F1E7452194A3E476976667233E44290D8056A0B3D802616AEEB8633E77A15DAE6D86EB5E652D76966F2385F2C9CFE6D0AA9A95A7A4BB9A44C78DC4D9D4658B80F4D67BDB7FFC43B0D4D76C71177E0465E2840DDB662C2AF7FD84142997057CEE88FEA292D2B8CAD04008DF27CCB293CCAEDE32095E2443FCEAA16B8AAFD12C629CA75A44CD1F7A27C700B67D4BE1CD2ED2EAAA32B220DA4140D99D0BB6A3E66C4F4EAD5586D05A1D34682C58064B94CB310A905984B8C3368ACF4BD60A83E4569483F04B14ECFFE3CEEC845F4CAF4F384B4C977E32DDB6067FB322DA37C2B0A4605EA03AB6F18E69962258C2E9C837F6537350B85A59833B926044A92FE1B6AC2856B3F6F1D4CA88890069BAC25B86F39EF75779F5D8E606B4294B9787F67E330F96943999EB0BDEBAEC2A65B23626092D70E1A3BD27B35CC3AF0659FEEE0756C30E3F633DC21BDC1F0BA7F986B57F07E7EFF97A418BD8DB966950D5717460249D8A8D2CB10CB94763E5D358F71D0BC39DA41B5F23A9B3DC958698F6D5A8FB0EB9EB548A484BAACCC8809A2A64C3EC0402692A54958A17720913D8C8DF67F983E85AE493B120DA14BF553E1D364A8A6F7F12839AACC46E281E9D444F222CE0DC1927DDE103F47D311D8B9DD5BF374FE811CBAF64D4B4A4C98E2CEEC172AB3EC2A4280EA93588BF93127951D7DA822B9A06685CE136964C23D016A6001C29301D60812F4AD1B23161A7E211CEF90B482AC831ED954977BD083C7AC7F8CEDF6DFE1D9AAEA681260C36213BFE542FCA7748F4EB26310E82A6CD39FFD873C986BED23CC309BB7985A9568059B9F8534A3D3551721D57557EC8A9ED21C3E915A56194989CB7BA113517E6B7B8FAC1DD681AA2E39BA63DB5D26ABE9FE5EFB544EA2BFD89B78D8B07FD6643F9A08AF44669E92EA58993440659C227A285789A1B15A0CB748AA13F172CB48B4997DA9E48B2A2DACCA0DB0CE0F2169C3FA104FEFFAC9AAFCD911B9C75D776C5EEDC0B4C6533FF22D3F067F0ADA34D545694BF0B4421084F78C27FF9AE8A3585CFC4A7D4E37E15262805ED7AC78B8CF7BA656FED3FCC9CA2EA4598AA2B5828352CDB89767E0F3E255428ADE7B16E0A3D996596152CC0A01C8FA4C1DD13CFDD800E701E8F78B5162BAAB58E8A0BF4EC98501A0794E379510B704345A8305BD0BF14C157E767183DC8395A4B0F7699239AC5112F158C382DB19689E427851CD00B6DA280135348EE9B284E58CF853084F77448B2071DD2C2D253B99AE76632AB17F72A150DF2E2F3201790DE6759DF3E125A2E92A4B4E51C0530163533EE806EC1DF297C58B82D591614B25681CF5838E973129E26285FF285D04CFB31C08B41CAA0971C7EAEDF30719E4176AA5F75AE030D5FB2F9A15F4E09E56CB3536FBBA1FF58629B463B50EB1C6B66080AB68C2D75D93C0F94167F25DA64CD2C2DE2F8AB6BF15D7706499160865CDF679B9AB99900977669E5A55CABAC2C041A1C1257CC92CF146D84948323C5825A728A803CE6124273CA0AEC782AA1E71E4C5E4C2CEC8808261D967E26DE664FF72D2292F14F579BFA1A1375A83500264253B16103336D7CA1D694F17AF6CFBE0D8F7313CB461C4F28AC9A9D9EB270368909985286117446D36C8161C851F4F1CD2CE138802B517C2E0AD6AC66B95F564F485A2F752358440824FA72DBF60AFE71C2AC1B781423549D41F0D0D58F3066B6DBDFF30421EA7B6DE395580C258F00F61858FC16491B6B4A3EBC4F8171643E1737AFC09F73FE79F8E7F4BCAD5C660D4D1D4651DC30C24164DD0ECB222C57A6CD8DB815A40BE3D3BF5543416DFED3C3580CECB7BB4FC17F4D3E915F4682C14621CCBBE88C08068BBC1EEDBC27B79E1FBA80857D60F6628F96F9E6F5578B8ACF6FD038E0B40745B1BB5025AAFA15C1CC06B9C0D1C6E9A4A51E2CC9B795C2AEF1

Emails

[email protected]

Signatures

Deletes shadow copies 3 TTPs
Ransomware often targets backup files to inhibit system recovery.
ransomware defense_evasion impact execution

File Deletion
T1070.004

Inhibit System Recovery
T1490

Windows Management Instrumentation
T1047
Credentials from Password Stores: Windows Credential Manager 1 TTPs
Suspicious access to Credentials History.
credential_access stealer

Windows Credential Manager
T1555.004

Deletes itself 1 IoCs

pid	Process
1368	cmd.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Decryptfiles.txt	Gosjeufon.cpl.exe
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Word\STARTUP\Decryptfiles.txt	Gosjeufon.cpl.exe

Reads user/profile data of web browsers 3 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

Credentials from Web Browsers
T1555.003

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-1-5-21-3290804112-2823094203-3137964600-1000\Software\Microsoft\Windows\CurrentVersion\Run\XPSUDTARW = "C:\\Users\\Admin\\AppData\\Local\\Temp\\Gosjeufon.cpl.exe"	Gosjeufon.cpl.exe

Drops desktop.ini file(s) 10 IoCs

description	ioc	Process
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Maintenance\Desktop.ini	Gosjeufon.cpl.exe
File opened for modification	C:\Users\Default\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Accessories\Accessibility\Desktop.ini	Gosjeufon.cpl.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Accessories\System Tools\Desktop.ini	Gosjeufon.cpl.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Accessories\Accessibility\Desktop.ini	Gosjeufon.cpl.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Accessories\Desktop.ini	Gosjeufon.cpl.exe
File opened for modification	C:\Users\Default\AppData\Roaming\Microsoft\Windows\SendTo\Desktop.ini	Gosjeufon.cpl.exe
File opened for modification	C:\Users\Default\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Accessories\Desktop.ini	Gosjeufon.cpl.exe
File opened for modification	C:\Users\Default\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Accessories\System Tools\Desktop.ini	Gosjeufon.cpl.exe
File opened for modification	C:\Users\Default\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Maintenance\Desktop.ini	Gosjeufon.cpl.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\SendTo\Desktop.ini	Gosjeufon.cpl.exe

System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Gosjeufon.cpl.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	PING.EXE

System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 2 IoCs

Adversaries may check for Internet connectivity on compromised systems.

discovery

Internet Connection Discovery

T1016.001

pid	Process
2732	PING.EXE
1368	cmd.exe

Opens file in notepad (likely ransom note) 1 IoCs

ransomware

pid	Process
1740	NOTEPAD.EXE

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
2732	PING.EXE

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
2980	Gosjeufon.cpl.exe
2980	Gosjeufon.cpl.exe
2980	Gosjeufon.cpl.exe
2980	Gosjeufon.cpl.exe
2980	Gosjeufon.cpl.exe
2980	Gosjeufon.cpl.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	2228	wmic.exe
Token: SeSecurityPrivilege	2228	wmic.exe
Token: SeTakeOwnershipPrivilege	2228	wmic.exe
Token: SeLoadDriverPrivilege	2228	wmic.exe
Token: SeSystemProfilePrivilege	2228	wmic.exe
Token: SeSystemtimePrivilege	2228	wmic.exe
Token: SeProfSingleProcessPrivilege	2228	wmic.exe
Token: SeIncBasePriorityPrivilege	2228	wmic.exe
Token: SeCreatePagefilePrivilege	2228	wmic.exe
Token: SeBackupPrivilege	2228	wmic.exe
Token: SeRestorePrivilege	2228	wmic.exe
Token: SeShutdownPrivilege	2228	wmic.exe
Token: SeDebugPrivilege	2228	wmic.exe
Token: SeSystemEnvironmentPrivilege	2228	wmic.exe
Token: SeRemoteShutdownPrivilege	2228	wmic.exe
Token: SeUndockPrivilege	2228	wmic.exe
Token: SeManageVolumePrivilege	2228	wmic.exe
Token: 33	2228	wmic.exe
Token: 34	2228	wmic.exe
Token: 35	2228	wmic.exe
Token: SeIncreaseQuotaPrivilege	2228	wmic.exe
Token: SeSecurityPrivilege	2228	wmic.exe
Token: SeTakeOwnershipPrivilege	2228	wmic.exe
Token: SeLoadDriverPrivilege	2228	wmic.exe
Token: SeSystemProfilePrivilege	2228	wmic.exe
Token: SeSystemtimePrivilege	2228	wmic.exe
Token: SeProfSingleProcessPrivilege	2228	wmic.exe
Token: SeIncBasePriorityPrivilege	2228	wmic.exe
Token: SeCreatePagefilePrivilege	2228	wmic.exe
Token: SeBackupPrivilege	2228	wmic.exe
Token: SeRestorePrivilege	2228	wmic.exe
Token: SeShutdownPrivilege	2228	wmic.exe
Token: SeDebugPrivilege	2228	wmic.exe
Token: SeSystemEnvironmentPrivilege	2228	wmic.exe
Token: SeRemoteShutdownPrivilege	2228	wmic.exe
Token: SeUndockPrivilege	2228	wmic.exe
Token: SeManageVolumePrivilege	2228	wmic.exe
Token: 33	2228	wmic.exe
Token: 34	2228	wmic.exe
Token: 35	2228	wmic.exe
Token: SeBackupPrivilege	2896	vssvc.exe
Token: SeRestorePrivilege	2896	vssvc.exe
Token: SeAuditPrivilege	2896	vssvc.exe
Token: SeIncreaseQuotaPrivilege	1544	wmic.exe
Token: SeSecurityPrivilege	1544	wmic.exe
Token: SeTakeOwnershipPrivilege	1544	wmic.exe
Token: SeLoadDriverPrivilege	1544	wmic.exe
Token: SeSystemProfilePrivilege	1544	wmic.exe
Token: SeSystemtimePrivilege	1544	wmic.exe
Token: SeProfSingleProcessPrivilege	1544	wmic.exe
Token: SeIncBasePriorityPrivilege	1544	wmic.exe
Token: SeCreatePagefilePrivilege	1544	wmic.exe
Token: SeBackupPrivilege	1544	wmic.exe
Token: SeRestorePrivilege	1544	wmic.exe
Token: SeShutdownPrivilege	1544	wmic.exe
Token: SeDebugPrivilege	1544	wmic.exe
Token: SeSystemEnvironmentPrivilege	1544	wmic.exe
Token: SeRemoteShutdownPrivilege	1544	wmic.exe
Token: SeUndockPrivilege	1544	wmic.exe
Token: SeManageVolumePrivilege	1544	wmic.exe
Token: 33	1544	wmic.exe
Token: 34	1544	wmic.exe
Token: 35	1544	wmic.exe
Token: SeIncreaseQuotaPrivilege	1544	wmic.exe

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 2980 wrote to memory of 2228	2980	Gosjeufon.cpl.exe	31
PID 2980 wrote to memory of 2228	2980	Gosjeufon.cpl.exe	31
PID 2980 wrote to memory of 2228	2980	Gosjeufon.cpl.exe	31
PID 2980 wrote to memory of 2228	2980	Gosjeufon.cpl.exe	31
PID 2980 wrote to memory of 1544	2980	Gosjeufon.cpl.exe	37
PID 2980 wrote to memory of 1544	2980	Gosjeufon.cpl.exe	37
PID 2980 wrote to memory of 1544	2980	Gosjeufon.cpl.exe	37
PID 2980 wrote to memory of 1544	2980	Gosjeufon.cpl.exe	37
PID 2980 wrote to memory of 1368	2980	Gosjeufon.cpl.exe	39
PID 2980 wrote to memory of 1368	2980	Gosjeufon.cpl.exe	39
PID 2980 wrote to memory of 1368	2980	Gosjeufon.cpl.exe	39
PID 2980 wrote to memory of 1368	2980	Gosjeufon.cpl.exe	39
PID 1368 wrote to memory of 2732	1368	cmd.exe	41
PID 1368 wrote to memory of 2732	1368	cmd.exe	41
PID 1368 wrote to memory of 2732	1368	cmd.exe	41
PID 1368 wrote to memory of 2732	1368	cmd.exe	41

Uses Volume Shadow Copy service COM API
The Volume Shadow Copy service is used to manage backups/snapshots.
ransomware

C:\Users\Admin\AppData\Local\Temp\Gosjeufon.cpl.exe
"C:\Users\Admin\AppData\Local\Temp\Gosjeufon.cpl.exe"
1⤵
- Drops startup file
- Adds Run key to start application
- Drops desktop.ini file(s)
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:2980
- \??\c:\Windows\system32\wbem\wmic.exe
  c:\gvLepO\gvLe\..\..\Windows\gvLe\gvLe\..\..\system32\gvLe\gvLe\..\..\wbem\gvLe\gvLep\..\..\wmic.exe shadowcopy delete
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:2228
- \??\c:\Windows\system32\wbem\wmic.exe
  c:\rsqmgv\rsqm\..\..\Windows\rsqm\rsqm\..\..\system32\rsqm\rsqm\..\..\wbem\rsqm\rsqmg\..\..\wmic.exe shadowcopy delete
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:1544
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /C ping 1.1.1.1 -n 1 -w 3000 > Nul & Del /f /q "C:\Users\Admin\AppData\Local\Temp\Gosjeufon.cpl.exe"
  2⤵
  - Deletes itself
  - System Location Discovery: System Language Discovery
  - System Network Configuration Discovery: Internet Connection Discovery
  - Suspicious use of WriteProcessMemory
  PID:1368
- - C:\Windows\SysWOW64\PING.EXE
    ping 1.1.1.1 -n 1 -w 3000
    3⤵
    - System Location Discovery: System Language Discovery
    - System Network Configuration Discovery: Internet Connection Discovery
    - Runs ping.exe
    PID:2732

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:2896

C:\Windows\explorer.exe
"C:\Windows\explorer.exe"
1⤵
PID:2420

C:\Windows\system32\NOTEPAD.EXE
"C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\Downloads\Decryptfiles.txt
1⤵
- Opens file in notepad (likely ransom note)
PID:1740

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Windows Management Instrumentation

T1047

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

Indicator Removal

T1070

File Deletion

T1070.004

Modify Registry

T1112

Credential Access

Credentials from Password Stores

T1555

Credentials from Web Browsers

T1555.003

Windows Credential Manager

T1555.004

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

Remote System Discovery

T1018

System Location Discovery

T1614

System Language Discovery

T1614.001

System Network Configuration Discovery

T1016

Internet Connection Discovery

T1016.001

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

Inhibit System Recovery

T1490

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\Decryptfiles.txt

Filesize
4KB

MD5
173f657c13a3442ce3462ae8a7f7d9aa

SHA1
f69407cd29caac9b55484431af5c0d41750a7390

SHA256
31e0385d169674cdbe17a60de09c29fa837ee7f6cf5e5d601d304cc8c5b3a414

SHA512
ea8b4d12f7dcd0a2859906630a90f780573e988a680320983f27fc587bfe8f4934205fa09448b0c8bc2d96456e5b7e1fed3260e73ec6924db3a472f3c68e06cf

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