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Analysis
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max time kernel
92s -
max time network
133s -
platform
windows10-2004_x64 -
resource
win10v2004-20240426-en -
resource tags
arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system -
submitted
03/06/2024, 23:11
Static task
static1
Behavioral task
behavioral1
Sample
f1f037b2393291f7fce079a0875756e613aa2527cff0649c5f302f81b63b6755.exe
Resource
win10v2004-20240426-en
General
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Target
f1f037b2393291f7fce079a0875756e613aa2527cff0649c5f302f81b63b6755.exe
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Size
1.8MB
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MD5
f0ccfd158ab6afc054539e1ab24c9f56
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SHA1
020a7e8bd75b484637fc7cc64d208893dda567ec
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SHA256
f1f037b2393291f7fce079a0875756e613aa2527cff0649c5f302f81b63b6755
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SHA512
a11c15a84809d34be113377a0ccc86003f3cf0a7b041e36d49c8d6423cba6f21415e889f9332fa5a982c20b7eeea57898bf2b6bf6feaeca4b49b89a77b54f4b7
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SSDEEP
24576:W7YfUB7F1931tb5YaOV+rEfv0xwT3zxNOt4XigDSCuptNEynEsqqfD:W75B7FDFtb5Ya8aesY3Ot4N7G/
Malware Config
Extracted
stealc
Extracted
vidar
https://t.me/ta904ek
https://steamcommunity.com/profiles/76561199695752269
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user_agent
Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:128.0) Gecko/20100101 Firefox/128.0
Signatures
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Detect Vidar Stealer 14 IoCs
resource yara_rule behavioral1/memory/3656-2-0x00000000029B0000-0x0000000002AFC000-memory.dmp family_vidar_v7 behavioral1/memory/1096-10-0x0000000000400000-0x0000000000649000-memory.dmp family_vidar_v7 behavioral1/memory/1096-8-0x0000000000400000-0x0000000000649000-memory.dmp family_vidar_v7 behavioral1/memory/1096-4-0x0000000000400000-0x0000000000649000-memory.dmp family_vidar_v7 behavioral1/memory/1096-22-0x0000000000400000-0x0000000000649000-memory.dmp family_vidar_v7 behavioral1/memory/1096-23-0x0000000000400000-0x0000000000649000-memory.dmp family_vidar_v7 behavioral1/memory/1096-40-0x0000000000400000-0x0000000000649000-memory.dmp family_vidar_v7 behavioral1/memory/1096-41-0x0000000000400000-0x0000000000649000-memory.dmp family_vidar_v7 behavioral1/memory/1096-57-0x0000000000400000-0x0000000000649000-memory.dmp family_vidar_v7 behavioral1/memory/1096-58-0x0000000000400000-0x0000000000649000-memory.dmp family_vidar_v7 behavioral1/memory/1096-69-0x0000000000400000-0x0000000000649000-memory.dmp family_vidar_v7 behavioral1/memory/1096-70-0x0000000000400000-0x0000000000649000-memory.dmp family_vidar_v7 behavioral1/memory/1096-71-0x0000000000400000-0x0000000000649000-memory.dmp family_vidar_v7 behavioral1/memory/1096-74-0x0000000000400000-0x0000000000649000-memory.dmp family_vidar_v7 -
Downloads MZ/PE file
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Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-3571316656-3665257725-2415531812-1000\Control Panel\International\Geo\Nation kat6E69.tmp -
Executes dropped EXE 1 IoCs
pid Process 1096 kat6E69.tmp -
Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
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Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
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Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
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Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
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Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 3656 set thread context of 1096 3656 f1f037b2393291f7fce079a0875756e613aa2527cff0649c5f302f81b63b6755.exe 90 -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Checks processor information in registry 2 TTPs 1 IoCs
Processor information is often read in order to detect sandboxing environments.
description ioc Process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString kat6E69.tmp -
Delays execution with timeout.exe 1 IoCs
pid Process 4276 timeout.exe -
Suspicious behavior: EnumeratesProcesses 4 IoCs
pid Process 1096 kat6E69.tmp 1096 kat6E69.tmp 1096 kat6E69.tmp 1096 kat6E69.tmp -
Suspicious use of WriteProcessMemory 14 IoCs
description pid Process procid_target PID 3656 wrote to memory of 1096 3656 f1f037b2393291f7fce079a0875756e613aa2527cff0649c5f302f81b63b6755.exe 90 PID 3656 wrote to memory of 1096 3656 f1f037b2393291f7fce079a0875756e613aa2527cff0649c5f302f81b63b6755.exe 90 PID 3656 wrote to memory of 1096 3656 f1f037b2393291f7fce079a0875756e613aa2527cff0649c5f302f81b63b6755.exe 90 PID 3656 wrote to memory of 1096 3656 f1f037b2393291f7fce079a0875756e613aa2527cff0649c5f302f81b63b6755.exe 90 PID 3656 wrote to memory of 1096 3656 f1f037b2393291f7fce079a0875756e613aa2527cff0649c5f302f81b63b6755.exe 90 PID 3656 wrote to memory of 1096 3656 f1f037b2393291f7fce079a0875756e613aa2527cff0649c5f302f81b63b6755.exe 90 PID 3656 wrote to memory of 1096 3656 f1f037b2393291f7fce079a0875756e613aa2527cff0649c5f302f81b63b6755.exe 90 PID 3656 wrote to memory of 1096 3656 f1f037b2393291f7fce079a0875756e613aa2527cff0649c5f302f81b63b6755.exe 90 PID 1096 wrote to memory of 2956 1096 kat6E69.tmp 93 PID 1096 wrote to memory of 2956 1096 kat6E69.tmp 93 PID 1096 wrote to memory of 2956 1096 kat6E69.tmp 93 PID 2956 wrote to memory of 4276 2956 cmd.exe 95 PID 2956 wrote to memory of 4276 2956 cmd.exe 95 PID 2956 wrote to memory of 4276 2956 cmd.exe 95
Processes
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C:\Users\Admin\AppData\Local\Temp\f1f037b2393291f7fce079a0875756e613aa2527cff0649c5f302f81b63b6755.exe"C:\Users\Admin\AppData\Local\Temp\f1f037b2393291f7fce079a0875756e613aa2527cff0649c5f302f81b63b6755.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3656 -
C:\Users\Admin\AppData\Local\Temp\kat6E69.tmpC:\Users\Admin\AppData\Local\Temp\kat6E69.tmp2⤵
- Checks computer location settings
- Executes dropped EXE
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1096 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c timeout /t 10 & del /f /q "C:\Users\Admin\AppData\Local\Temp\kat6E69.tmp" & rd /s /q "C:\ProgramData\FCFIJEBFCGDA" & exit3⤵
- Suspicious use of WriteProcessMemory
PID:2956 -
C:\Windows\SysWOW64\timeout.exetimeout /t 104⤵
- Delays execution with timeout.exe
PID:4276
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
861KB
MD566064dbdb70a5eb15ebf3bf65aba254b
SHA10284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA2566a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f