Analysis
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max time kernel
141s -
max time network
123s -
platform
windows11-21h2_x64 -
resource
win11-20240611-en -
resource tags
arch:x64arch:x86image:win11-20240611-enlocale:en-usos:windows11-21h2-x64system -
submitted
29-06-2024 02:47
Static task
static1
Behavioral task
behavioral1
Sample
4b0f1dbbf3b6e1c86adcd457de849ae63428dab2f036562b2b209098e11ff19b.exe
Resource
win10v2004-20240508-en
General
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Target
4b0f1dbbf3b6e1c86adcd457de849ae63428dab2f036562b2b209098e11ff19b.exe
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Size
2.2MB
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MD5
a66510c5b83999a9278a4273bf9a5897
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SHA1
8fef14bcf1a18069b1131b9f9117265bcaa837c2
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SHA256
4b0f1dbbf3b6e1c86adcd457de849ae63428dab2f036562b2b209098e11ff19b
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SHA512
05024b5b4b064e8588bda444af895c81e7b46ad03f81d8b3e3f9bb79da4259e98bddee2dfa880e260b143d54f2424a211983d8e47bd2d92aedae69f14f52f344
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SSDEEP
49152:qpjNvr9ySAOmw41HHO+SASagXkJr4MDkUwm:qpjNp7p41HH8n5A
Malware Config
Extracted
vidar
https://t.me/g067n
https://steamcommunity.com/profiles/76561199707802586
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user_agent
Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:129.0) Gecko/20100101 Firefox/129.0
Signatures
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Detect Vidar Stealer 16 IoCs
Processes:
resource yara_rule behavioral2/memory/1160-1-0x0000000002B00000-0x0000000002C10000-memory.dmp family_vidar_v7 behavioral2/memory/3724-4-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/3724-10-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/3724-8-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/3724-22-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/3724-23-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/3724-33-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/3724-34-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/3724-42-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/3724-43-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/3724-59-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/3724-60-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/3724-71-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/3724-72-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/3724-73-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/3724-74-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 -
Downloads MZ/PE file
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Executes dropped EXE 1 IoCs
Processes:
kat560F.tmppid process 3724 kat560F.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
Processes:
4b0f1dbbf3b6e1c86adcd457de849ae63428dab2f036562b2b209098e11ff19b.exedescription pid process target process PID 1160 set thread context of 3724 1160 4b0f1dbbf3b6e1c86adcd457de849ae63428dab2f036562b2b209098e11ff19b.exe kat560F.tmp -
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 2 IoCs
Processor information is often read in order to detect sandboxing environments.
Processes:
kat560F.tmpdescription ioc process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString kat560F.tmp Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 kat560F.tmp -
Delays execution with timeout.exe 1 IoCs
Processes:
timeout.exepid process 2816 timeout.exe -
Suspicious behavior: EnumeratesProcesses 8 IoCs
Processes:
kat560F.tmppid process 3724 kat560F.tmp 3724 kat560F.tmp 3724 kat560F.tmp 3724 kat560F.tmp 3724 kat560F.tmp 3724 kat560F.tmp 3724 kat560F.tmp 3724 kat560F.tmp -
Suspicious use of WriteProcessMemory 14 IoCs
Processes:
4b0f1dbbf3b6e1c86adcd457de849ae63428dab2f036562b2b209098e11ff19b.exekat560F.tmpcmd.exedescription pid process target process PID 1160 wrote to memory of 3724 1160 4b0f1dbbf3b6e1c86adcd457de849ae63428dab2f036562b2b209098e11ff19b.exe kat560F.tmp PID 1160 wrote to memory of 3724 1160 4b0f1dbbf3b6e1c86adcd457de849ae63428dab2f036562b2b209098e11ff19b.exe kat560F.tmp PID 1160 wrote to memory of 3724 1160 4b0f1dbbf3b6e1c86adcd457de849ae63428dab2f036562b2b209098e11ff19b.exe kat560F.tmp PID 1160 wrote to memory of 3724 1160 4b0f1dbbf3b6e1c86adcd457de849ae63428dab2f036562b2b209098e11ff19b.exe kat560F.tmp PID 1160 wrote to memory of 3724 1160 4b0f1dbbf3b6e1c86adcd457de849ae63428dab2f036562b2b209098e11ff19b.exe kat560F.tmp PID 1160 wrote to memory of 3724 1160 4b0f1dbbf3b6e1c86adcd457de849ae63428dab2f036562b2b209098e11ff19b.exe kat560F.tmp PID 1160 wrote to memory of 3724 1160 4b0f1dbbf3b6e1c86adcd457de849ae63428dab2f036562b2b209098e11ff19b.exe kat560F.tmp PID 1160 wrote to memory of 3724 1160 4b0f1dbbf3b6e1c86adcd457de849ae63428dab2f036562b2b209098e11ff19b.exe kat560F.tmp PID 3724 wrote to memory of 4584 3724 kat560F.tmp cmd.exe PID 3724 wrote to memory of 4584 3724 kat560F.tmp cmd.exe PID 3724 wrote to memory of 4584 3724 kat560F.tmp cmd.exe PID 4584 wrote to memory of 2816 4584 cmd.exe timeout.exe PID 4584 wrote to memory of 2816 4584 cmd.exe timeout.exe PID 4584 wrote to memory of 2816 4584 cmd.exe timeout.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\4b0f1dbbf3b6e1c86adcd457de849ae63428dab2f036562b2b209098e11ff19b.exe"C:\Users\Admin\AppData\Local\Temp\4b0f1dbbf3b6e1c86adcd457de849ae63428dab2f036562b2b209098e11ff19b.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1160 -
C:\Users\Admin\AppData\Local\Temp\kat560F.tmpC:\Users\Admin\AppData\Local\Temp\kat560F.tmp2⤵
- Executes dropped EXE
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:3724 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\system32\cmd.exe" /c timeout /t 10 & del /f /q "C:\Users\Admin\AppData\Local\Temp\kat560F.tmp" & rd /s /q "C:\ProgramData\KFCAFIIDHIDG" & exit3⤵
- Suspicious use of WriteProcessMemory
PID:4584 -
C:\Windows\SysWOW64\timeout.exetimeout /t 104⤵
- Delays execution with timeout.exe
PID:2816
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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