Analysis
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max time kernel
120s -
max time network
123s -
platform
windows7_x64 -
resource
win7-20230712-en -
resource tags
arch:x64arch:x86image:win7-20230712-enlocale:en-usos:windows7-x64system -
submitted
05-08-2023 09:53
Behavioral task
behavioral1
Sample
2f771f0658e16ea07035928188e7f6e9.exe
Resource
win7-20230712-en
General
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Target
2f771f0658e16ea07035928188e7f6e9.exe
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Size
439KB
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MD5
2f771f0658e16ea07035928188e7f6e9
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SHA1
a8688f20e5e33b3e63d188f9cc36ffbe8756b026
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SHA256
9d96a7f4d13ee5d4fe74dace7787d6573111eb1104239f2cfbca79810d309926
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SHA512
18a8dae4ac05fd4762b9cb06c7b43ec3bdd1ffd4fbc65769c831fd788d1202f57bc04a9ca1d56692269ed32f661bfb4ac51dc1a8aecf0ed6d328c83002001704
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SSDEEP
3072:a1ye7+hTz5pO7+lgtC6fz80CEZjSlvbx52KMJGJtMNkPU:ageGTdY6loC6f4/lTx52KcGJtSn
Malware Config
Signatures
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Matiex Main payload 1 IoCs
resource yara_rule behavioral1/memory/2464-53-0x0000000000D00000-0x0000000000D74000-memory.dmp family_matiex -
Reads user/profile data of local email clients 2 TTPs
Email clients store some user data on disk where infostealers will often target it.
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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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Looks up external IP address via web service 3 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
flow ioc 4 freegeoip.app 5 freegeoip.app 2 checkip.dyndns.org -
Program crash 1 IoCs
pid pid_target Process procid_target 2712 2464 WerFault.exe 27 -
Suspicious behavior: EnumeratesProcesses 6 IoCs
pid Process 2464 2f771f0658e16ea07035928188e7f6e9.exe 2464 2f771f0658e16ea07035928188e7f6e9.exe 2464 2f771f0658e16ea07035928188e7f6e9.exe 2464 2f771f0658e16ea07035928188e7f6e9.exe 2464 2f771f0658e16ea07035928188e7f6e9.exe 2464 2f771f0658e16ea07035928188e7f6e9.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 2464 2f771f0658e16ea07035928188e7f6e9.exe -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 2464 wrote to memory of 2712 2464 2f771f0658e16ea07035928188e7f6e9.exe 29 PID 2464 wrote to memory of 2712 2464 2f771f0658e16ea07035928188e7f6e9.exe 29 PID 2464 wrote to memory of 2712 2464 2f771f0658e16ea07035928188e7f6e9.exe 29 PID 2464 wrote to memory of 2712 2464 2f771f0658e16ea07035928188e7f6e9.exe 29
Processes
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C:\Users\Admin\AppData\Local\Temp\2f771f0658e16ea07035928188e7f6e9.exe"C:\Users\Admin\AppData\Local\Temp\2f771f0658e16ea07035928188e7f6e9.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2464 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 2464 -s 17162⤵
- Program crash
PID:2712
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