Resubmissions
03/10/2024, 20:46
241003-zklthazamd1002/10/2024, 15:16
241002-snmfwawhqd1001/10/2024, 01:49
241001-b8w3davemp10Analysis
- max time kernel
119s - max time network
121s - platform
windows7_x64 - resource
win7-20240729-en - resource tags
arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system - submitted
03/10/2024, 20:46
Static task
static1
Behavioral task
behavioral1
Sample
de664956d799e59e1cca0788d545922ee420e3afdcf277442f148f52bc78df89.exe
Resource
win7-20240729-en
Behavioral task
behavioral2
Sample
de664956d799e59e1cca0788d545922ee420e3afdcf277442f148f52bc78df89.exe
Resource
win10v2004-20240802-en
General
- Target de664956d799e59e1cca0788d545922ee420e3afdcf277442f148f52bc78df89.exe
- Size 404KB
- Sample241003-zklthazamd
- SHA256 de664956d799e59e1cca0788d545922ee420e3afdcf277442f148f52bc78df89
- MD5 38dabc7063c0a175a12c30bd44cf3dbc
- SHA1 6d7aabebd8a417168e220c7497f4bc38c314da3b
- SHA512 674760ad37cf7886ca4cd786e4d1966d3827fdad008a85a125e18bd474d073dae8d4296427253bb86e78d3173a300611ee5eb2e01c1f968700679350fc17a24d
- SSDEEP 12288:XY1HgTKqPXxbx28l1ukOy325R4RQMJnJ9w6EO:XY1AtPB0KwkU5GRnJnxt
- MD5 SHA1 SHA512 SSDEEP
Malware Config
Extracted
-
vidar
-
11
-
a669a86f8433a1e88901711c0f772c97
-
https://t.me/jamsemlg
-
https://steamcommunity.com/profiles/76561199780418869
-
https://t.me/ae5ed
-
user_agent
Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:130.0) Gecko/20100101 Firefox/130.0
Signatures
- Detect Vidar Stealer 17 IoCs
resource yara_rule behavioral1/memory/2688-18-0x0000000000400000-0x0000000000676000-memory.dmp family_vidar_v7 behavioral1/memory/2688-16-0x0000000000400000-0x0000000000676000-memory.dmp family_vidar_v7 behavioral1/memory/2688-14-0x0000000000400000-0x0000000000676000-memory.dmp family_vidar_v7 behavioral1/memory/2688-11-0x0000000000400000-0x0000000000676000-memory.dmp family_vidar_v7 behavioral1/memory/2688-10-0x0000000000400000-0x0000000000676000-memory.dmp family_vidar_v7 behavioral1/memory/2688-9-0x0000000000400000-0x0000000000676000-memory.dmp family_vidar_v7 behavioral1/memory/2688-22-0x0000000000400000-0x0000000000676000-memory.dmp family_vidar_v7 behavioral1/memory/2688-166-0x0000000000400000-0x0000000000676000-memory.dmp family_vidar_v7 behavioral1/memory/2688-185-0x0000000000400000-0x0000000000676000-memory.dmp family_vidar_v7 behavioral1/memory/2688-215-0x0000000000400000-0x0000000000676000-memory.dmp family_vidar_v7 behavioral1/memory/2688-234-0x0000000000400000-0x0000000000676000-memory.dmp family_vidar_v7 behavioral1/memory/2688-365-0x0000000000400000-0x0000000000676000-memory.dmp family_vidar_v7 behavioral1/memory/2688-384-0x0000000000400000-0x0000000000676000-memory.dmp family_vidar_v7 behavioral1/memory/2688-387-0x0000000000400000-0x0000000000676000-memory.dmp family_vidar_v7 behavioral1/memory/2688-428-0x0000000000400000-0x0000000000676000-memory.dmp family_vidar_v7 behavioral1/memory/2688-447-0x0000000000400000-0x0000000000676000-memory.dmp family_vidar_v7 behavioral1/memory/2688-520-0x0000000000400000-0x0000000000676000-memory.dmp family_vidar_v7 - Downloads MZ/PE file
- Loads dropped DLL 2 IoCs
pid Process 2688 RegAsm.exe 2688 RegAsm.exe - Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
- Reads user/profile data of web browsers 3 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
- Unsecured Credentials: Credentials In Files 1 TTPs
Steal credentials from unsecured files.
- Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
- Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
- Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 2932 set thread context of 2688 2932 de664956d799e59e1cca0788d545922ee420e3afdcf277442f148f52bc78df89.exe 32 - Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- System Location Discovery: System Language Discovery 1 TTPs 4 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language timeout.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language de664956d799e59e1cca0788d545922ee420e3afdcf277442f148f52bc78df89.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language RegAsm.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language cmd.exe - Checks processor information in registry 2 TTPs 2 IoCs
Processor information is often read in order to detect sandboxing environments.
description ioc Process Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 RegAsm.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString RegAsm.exe - Delays execution with timeout.exe 1 IoCs
pid Process 692 timeout.exe -
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\5FB7EE0633E259DBAD0C4C9AE6D38F1A61C7DC25 RegAsm.exe Set value (data) \REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\5FB7EE0633E259DBAD0C4C9AE6D38F1A61C7DC25\Blob = 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 RegAsm.exe Set value (data) \REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\5FB7EE0633E259DBAD0C4C9AE6D38F1A61C7DC25\Blob = 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 RegAsm.exe - Suspicious behavior: EnumeratesProcesses 6 IoCs
pid Process 2688 RegAsm.exe 2688 RegAsm.exe 2688 RegAsm.exe 2688 RegAsm.exe 2688 RegAsm.exe 2688 RegAsm.exe - Suspicious use of WriteProcessMemory 22 IoCs
description pid Process procid_target PID 2932 wrote to memory of 2688 2932 de664956d799e59e1cca0788d545922ee420e3afdcf277442f148f52bc78df89.exe 32 PID 2932 wrote to memory of 2688 2932 de664956d799e59e1cca0788d545922ee420e3afdcf277442f148f52bc78df89.exe 32 PID 2932 wrote to memory of 2688 2932 de664956d799e59e1cca0788d545922ee420e3afdcf277442f148f52bc78df89.exe 32 PID 2932 wrote to memory of 2688 2932 de664956d799e59e1cca0788d545922ee420e3afdcf277442f148f52bc78df89.exe 32 PID 2932 wrote to memory of 2688 2932 de664956d799e59e1cca0788d545922ee420e3afdcf277442f148f52bc78df89.exe 32 PID 2932 wrote to memory of 2688 2932 de664956d799e59e1cca0788d545922ee420e3afdcf277442f148f52bc78df89.exe 32 PID 2932 wrote to memory of 2688 2932 de664956d799e59e1cca0788d545922ee420e3afdcf277442f148f52bc78df89.exe 32 PID 2932 wrote to memory of 2688 2932 de664956d799e59e1cca0788d545922ee420e3afdcf277442f148f52bc78df89.exe 32 PID 2932 wrote to memory of 2688 2932 de664956d799e59e1cca0788d545922ee420e3afdcf277442f148f52bc78df89.exe 32 PID 2932 wrote to memory of 2688 2932 de664956d799e59e1cca0788d545922ee420e3afdcf277442f148f52bc78df89.exe 32 PID 2932 wrote to memory of 2688 2932 de664956d799e59e1cca0788d545922ee420e3afdcf277442f148f52bc78df89.exe 32 PID 2932 wrote to memory of 2688 2932 de664956d799e59e1cca0788d545922ee420e3afdcf277442f148f52bc78df89.exe 32 PID 2932 wrote to memory of 2688 2932 de664956d799e59e1cca0788d545922ee420e3afdcf277442f148f52bc78df89.exe 32 PID 2932 wrote to memory of 2688 2932 de664956d799e59e1cca0788d545922ee420e3afdcf277442f148f52bc78df89.exe 32 PID 2688 wrote to memory of 1724 2688 RegAsm.exe 35 PID 2688 wrote to memory of 1724 2688 RegAsm.exe 35 PID 2688 wrote to memory of 1724 2688 RegAsm.exe 35 PID 2688 wrote to memory of 1724 2688 RegAsm.exe 35 PID 1724 wrote to memory of 692 1724 cmd.exe 37 PID 1724 wrote to memory of 692 1724 cmd.exe 37 PID 1724 wrote to memory of 692 1724 cmd.exe 37 PID 1724 wrote to memory of 692 1724 cmd.exe 37
Processes
-
C:\Users\Admin\AppData\Local\Temp\de664956d799e59e1cca0788d545922ee420e3afdcf277442f148f52bc78df89.exe"C:\Users\Admin\AppData\Local\Temp\de664956d799e59e1cca0788d545922ee420e3afdcf277442f148f52bc78df89.exe"1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2932 -
C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"2⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Checks processor information in registry
- Modifies system certificate store
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:2688 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\system32\cmd.exe" /c timeout /t 10 & rd /s /q "C:\ProgramData\BKECAEBGHDAE" & exit3⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1724 -
C:\Windows\SysWOW64\timeout.exetimeout /t 104⤵
- System Location Discovery: System Language Discovery
- Delays execution with timeout.exe
PID:692
-
-
-
Network
MITRE ATT&CK Enterprise v15
Defense Evasion
Modify Registry
1Subvert Trust Controls
1Install Root Certificate
1Credential Access
Credentials from Password Stores
1Credentials from Web Browsers
1Unsecured Credentials
4Credentials In Files
4Replay Monitor
Loading Replay Monitor...
Downloads
- Path C:\Users\Admin\AppData\Local\Temp\CabF2BA.tmp
- Size 70KB
- SHA256 b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f
- MD5 49aebf8cbd62d92ac215b2923fb1b9f5
- SHA1 1723be06719828dda65ad804298d0431f6aff976
- SHA512 bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b
- SSDEEP 1536:gc257bHnClJ3v5mnAQEBP+bfnW8Ctl8G1G4eu76NWDdB34w18R5cBWcJAm68+Q:gp2ld5jPqW8LgeulxB3fgcEfDQ
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Local\Temp\TarF2EC.tmp
- Size 181KB
- SHA256 8efbc21559ef8b1bcf526800d8070baad42474ce7198e26fa771dbb41a76b1d8
- MD5 4ea6026cf93ec6338144661bf1202cd1
- SHA1 a1dec9044f750ad887935a01430bf49322fbdcb7
- SHA512 6c7e0980e39aacf4c3689802353f464a08cd17753bd210ee997e5f2a455deb4f287a9ef74d84579dbde49bc96213cd2b8b247723919c412ea980aa6e6bfe218b
- SSDEEP 1536:aAZw/J+lCUsTRvsqgCyqWlUDNWdm1wpSru2A0XwjY/z02DTr3rmt6mZ:as2J+qTR0XCy/dmASru2AijbdG
- MD5 SHA1 SHA512 SSDEEP
- Path \ProgramData\mozglue.dll
- Size 593KB
- SHA256 ba06a6ee0b15f5be5c4e67782eec8b521e36c107a329093ec400fe0404eb196a
- MD5 c8fd9be83bc728cc04beffafc2907fe9
- SHA1 95ab9f701e0024cedfbd312bcfe4e726744c4f2e
- SHA512 fbb446f4a27ef510e616caad52945d6c9cc1fd063812c41947e579ec2b54df57c6dc46237ded80fca5847f38cbe1747a6c66a13e2c8c19c664a72be35eb8b040
- SSDEEP 12288:BlSyAom/gcRKMdRm4wFkRHuyG4RRGJVDjMk/x21R8gY/r:BKgcRKMdRm4wFkVVDGJVv//x21R8br
- MD5 SHA1 SHA512 SSDEEP
- Path \ProgramData\nss3.dll
- Size 2.0MB
- SHA256 ac5c92fe6c51cfa742e475215b83b3e11a4379820043263bf50d4068686c6fa5
- MD5 1cc453cdf74f31e4d913ff9c10acdde2
- SHA1 6e85eae544d6e965f15fa5c39700fa7202f3aafe
- SHA512 dd9ff4e06b00dc831439bab11c10e9b2ae864ea6e780d3835ea7468818f35439f352ef137da111efcdf2bb6465f6ca486719451bf6cf32c6a4420a56b1d64571
- SSDEEP 49152:fECf12gikHlnKGxJRIB+y5nvxnaOSJ3HFNWYrVvE4CQsgzMmQfTU1NrWmy4KoAzh:J7Tf8J1Q+SS5/nr
- MD5 SHA1 SHA512 SSDEEP