Analysis
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max time kernel
133s -
max time network
150s -
platform
windows10-2004_x64 -
resource
win10v2004-20240508-en -
resource tags
arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system -
submitted
07-06-2024 05:45
Static task
static1
Behavioral task
behavioral1
Sample
b4dcd53d4f4f1f22e390498a97205e7aeece3e5068c4b12f3c8993722c8f8f04.exe
Resource
win7-20240508-en
General
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Target
b4dcd53d4f4f1f22e390498a97205e7aeece3e5068c4b12f3c8993722c8f8f04.exe
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Size
1.9MB
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MD5
a45d5d423ba4bfd6b542d43706030fcb
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SHA1
28a636ee823d45c8c2ae3d73c5781bac8fdd1498
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SHA256
b4dcd53d4f4f1f22e390498a97205e7aeece3e5068c4b12f3c8993722c8f8f04
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SHA512
3413d475963b4049f645896b41f13da802dd16e776b6f7be9174077528e75c89fdaf2f54f18e885303c031d6356ad70538f982ebab2547a2ea77136c020a01be
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SSDEEP
24576:n/eC7bzaXi7m0aXgh9ShIu0CyiSCyiSCdN9tdN9tdCytdN9t4oYI4oYI4oYI4oY/:nGYz0P0gMS4cdR/z4+UVi4e9Crn
Malware Config
Extracted
stealc
Extracted
vidar
https://t.me/r8z0l
https://steamcommunity.com/profiles/76561199698764354
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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 8 IoCs
Processes:
resource yara_rule behavioral2/memory/2160-2-0x0000000002BE0000-0x0000000002D46000-memory.dmp family_vidar_v7 behavioral2/memory/4124-8-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/4124-10-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/4124-4-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/4124-24-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/4124-25-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/4124-42-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/4124-43-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 -
Detect binaries embedding considerable number of MFA browser extension IDs. 4 IoCs
Processes:
resource yara_rule behavioral2/memory/4124-24-0x0000000000400000-0x0000000000648000-memory.dmp INDICATOR_SUSPICIOUS_Binary_Embedded_MFA_Browser_Extension_IDs behavioral2/memory/4124-25-0x0000000000400000-0x0000000000648000-memory.dmp INDICATOR_SUSPICIOUS_Binary_Embedded_MFA_Browser_Extension_IDs behavioral2/memory/4124-42-0x0000000000400000-0x0000000000648000-memory.dmp INDICATOR_SUSPICIOUS_Binary_Embedded_MFA_Browser_Extension_IDs behavioral2/memory/4124-43-0x0000000000400000-0x0000000000648000-memory.dmp INDICATOR_SUSPICIOUS_Binary_Embedded_MFA_Browser_Extension_IDs -
Detect binaries embedding considerable number of cryptocurrency wallet browser extension IDs. 4 IoCs
Processes:
resource yara_rule behavioral2/memory/4124-24-0x0000000000400000-0x0000000000648000-memory.dmp INDICATOR_SUSPICIOUS_Binary_Embedded_Crypto_Wallet_Browser_Extension_IDs behavioral2/memory/4124-25-0x0000000000400000-0x0000000000648000-memory.dmp INDICATOR_SUSPICIOUS_Binary_Embedded_Crypto_Wallet_Browser_Extension_IDs behavioral2/memory/4124-42-0x0000000000400000-0x0000000000648000-memory.dmp INDICATOR_SUSPICIOUS_Binary_Embedded_Crypto_Wallet_Browser_Extension_IDs behavioral2/memory/4124-43-0x0000000000400000-0x0000000000648000-memory.dmp INDICATOR_SUSPICIOUS_Binary_Embedded_Crypto_Wallet_Browser_Extension_IDs -
Detects Windows executables referencing non-Windows User-Agents 7 IoCs
Processes:
resource yara_rule behavioral2/memory/4124-8-0x0000000000400000-0x0000000000648000-memory.dmp INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA behavioral2/memory/4124-10-0x0000000000400000-0x0000000000648000-memory.dmp INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA behavioral2/memory/4124-4-0x0000000000400000-0x0000000000648000-memory.dmp INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA behavioral2/memory/4124-24-0x0000000000400000-0x0000000000648000-memory.dmp INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA behavioral2/memory/4124-25-0x0000000000400000-0x0000000000648000-memory.dmp INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA behavioral2/memory/4124-42-0x0000000000400000-0x0000000000648000-memory.dmp INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA behavioral2/memory/4124-43-0x0000000000400000-0x0000000000648000-memory.dmp INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA -
Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers. 4 IoCs
Processes:
resource yara_rule behavioral2/memory/4124-24-0x0000000000400000-0x0000000000648000-memory.dmp INDICATOR_SUSPICIOUS_Binary_References_Browsers behavioral2/memory/4124-25-0x0000000000400000-0x0000000000648000-memory.dmp INDICATOR_SUSPICIOUS_Binary_References_Browsers behavioral2/memory/4124-42-0x0000000000400000-0x0000000000648000-memory.dmp INDICATOR_SUSPICIOUS_Binary_References_Browsers behavioral2/memory/4124-43-0x0000000000400000-0x0000000000648000-memory.dmp INDICATOR_SUSPICIOUS_Binary_References_Browsers -
Detects binaries and memory artifacts referencing sandbox DLLs typically observed in sandbox evasion 7 IoCs
Processes:
resource yara_rule behavioral2/memory/4124-8-0x0000000000400000-0x0000000000648000-memory.dmp INDICATOR_SUSPICIOUS_EXE_SandboxHookingDLL behavioral2/memory/4124-10-0x0000000000400000-0x0000000000648000-memory.dmp INDICATOR_SUSPICIOUS_EXE_SandboxHookingDLL behavioral2/memory/4124-4-0x0000000000400000-0x0000000000648000-memory.dmp INDICATOR_SUSPICIOUS_EXE_SandboxHookingDLL behavioral2/memory/4124-24-0x0000000000400000-0x0000000000648000-memory.dmp INDICATOR_SUSPICIOUS_EXE_SandboxHookingDLL behavioral2/memory/4124-25-0x0000000000400000-0x0000000000648000-memory.dmp INDICATOR_SUSPICIOUS_EXE_SandboxHookingDLL behavioral2/memory/4124-42-0x0000000000400000-0x0000000000648000-memory.dmp INDICATOR_SUSPICIOUS_EXE_SandboxHookingDLL behavioral2/memory/4124-43-0x0000000000400000-0x0000000000648000-memory.dmp INDICATOR_SUSPICIOUS_EXE_SandboxHookingDLL -
Detects executables containing potential Windows Defender anti-emulation checks 7 IoCs
Processes:
resource yara_rule behavioral2/memory/4124-8-0x0000000000400000-0x0000000000648000-memory.dmp INDICATOR_SUSPICIOUS_EXE_WindDefender_AntiEmaulation behavioral2/memory/4124-10-0x0000000000400000-0x0000000000648000-memory.dmp INDICATOR_SUSPICIOUS_EXE_WindDefender_AntiEmaulation behavioral2/memory/4124-4-0x0000000000400000-0x0000000000648000-memory.dmp INDICATOR_SUSPICIOUS_EXE_WindDefender_AntiEmaulation behavioral2/memory/4124-24-0x0000000000400000-0x0000000000648000-memory.dmp INDICATOR_SUSPICIOUS_EXE_WindDefender_AntiEmaulation behavioral2/memory/4124-25-0x0000000000400000-0x0000000000648000-memory.dmp INDICATOR_SUSPICIOUS_EXE_WindDefender_AntiEmaulation behavioral2/memory/4124-42-0x0000000000400000-0x0000000000648000-memory.dmp INDICATOR_SUSPICIOUS_EXE_WindDefender_AntiEmaulation behavioral2/memory/4124-43-0x0000000000400000-0x0000000000648000-memory.dmp INDICATOR_SUSPICIOUS_EXE_WindDefender_AntiEmaulation -
Downloads MZ/PE file
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Executes dropped EXE 1 IoCs
Processes:
kat4537.tmppid process 4124 kat4537.tmp -
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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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:
b4dcd53d4f4f1f22e390498a97205e7aeece3e5068c4b12f3c8993722c8f8f04.exedescription pid process target process PID 2160 set thread context of 4124 2160 b4dcd53d4f4f1f22e390498a97205e7aeece3e5068c4b12f3c8993722c8f8f04.exe kat4537.tmp -
Checks processor information in registry 2 TTPs 1 IoCs
Processor information is often read in order to detect sandboxing environments.
Processes:
kat4537.tmpdescription ioc process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString kat4537.tmp -
Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
kat4537.tmppid process 4124 kat4537.tmp 4124 kat4537.tmp -
Suspicious use of WriteProcessMemory 8 IoCs
Processes:
b4dcd53d4f4f1f22e390498a97205e7aeece3e5068c4b12f3c8993722c8f8f04.exedescription pid process target process PID 2160 wrote to memory of 4124 2160 b4dcd53d4f4f1f22e390498a97205e7aeece3e5068c4b12f3c8993722c8f8f04.exe kat4537.tmp PID 2160 wrote to memory of 4124 2160 b4dcd53d4f4f1f22e390498a97205e7aeece3e5068c4b12f3c8993722c8f8f04.exe kat4537.tmp PID 2160 wrote to memory of 4124 2160 b4dcd53d4f4f1f22e390498a97205e7aeece3e5068c4b12f3c8993722c8f8f04.exe kat4537.tmp PID 2160 wrote to memory of 4124 2160 b4dcd53d4f4f1f22e390498a97205e7aeece3e5068c4b12f3c8993722c8f8f04.exe kat4537.tmp PID 2160 wrote to memory of 4124 2160 b4dcd53d4f4f1f22e390498a97205e7aeece3e5068c4b12f3c8993722c8f8f04.exe kat4537.tmp PID 2160 wrote to memory of 4124 2160 b4dcd53d4f4f1f22e390498a97205e7aeece3e5068c4b12f3c8993722c8f8f04.exe kat4537.tmp PID 2160 wrote to memory of 4124 2160 b4dcd53d4f4f1f22e390498a97205e7aeece3e5068c4b12f3c8993722c8f8f04.exe kat4537.tmp PID 2160 wrote to memory of 4124 2160 b4dcd53d4f4f1f22e390498a97205e7aeece3e5068c4b12f3c8993722c8f8f04.exe kat4537.tmp
Processes
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C:\Users\Admin\AppData\Local\Temp\b4dcd53d4f4f1f22e390498a97205e7aeece3e5068c4b12f3c8993722c8f8f04.exe"C:\Users\Admin\AppData\Local\Temp\b4dcd53d4f4f1f22e390498a97205e7aeece3e5068c4b12f3c8993722c8f8f04.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2160 -
C:\Users\Admin\AppData\Local\Temp\kat4537.tmpC:\Users\Admin\AppData\Local\Temp\kat4537.tmp2⤵
- Executes dropped EXE
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
PID:4124
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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