Analysis
- max time kernel
119s - max time network
121s - platform
windows10_x64 - resource
win10v20201028 - submitted
01/12/2020, 08:57
General
- Target 967d90f032f3ade87f45fbeee035b68e.exe
- Size 570KB
- Sample201201-jsb67d81fj
- SHA256 025e6f24f86484bb2ffd57d222a4e0e18c43b43cd0209100fb780d67c3be893f
Malware Config
Signatures
- Loads dropped DLL 2 IoCs
- Reads user/profile data of local email clients 2 TTPs
Email clients store some user data on disk where infostealers will often target it.
- Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
- Accesses 2FA software files, possible credential harvesting 2 TTPs
- Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
- JavaScript code in executable 1 IoCs
- Looks up external IP address via web service 1 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
- Program crash 7 IoCs
- Checks processor information in registry 2 TTPs 2 IoCs
Processor information is often read in order to detect sandboxing environments.
- Kills process with taskkill 1 IoCs
- Suspicious behavior: EnumeratesProcesses 104 IoCs
- Suspicious use of AdjustPrivilegeToken 10 IoCs
- Suspicious use of WriteProcessMemory 6 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\967d90f032f3ade87f45fbeee035b68e.exe"C:\Users\Admin\AppData\Local\Temp\967d90f032f3ade87f45fbeee035b68e.exe"1⤵
- Loads dropped DLL
- Checks processor information in registry
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 508 -s 7922⤵
- Program crash
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 508 -s 9442⤵
- Program crash
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 508 -s 10722⤵
- Program crash
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 508 -s 11282⤵
- Program crash
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 508 -s 11682⤵
- Program crash
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 508 -s 10042⤵
- Program crash
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 508 -s 13562⤵
- Program crash
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c taskkill /im 967d90f032f3ade87f45fbeee035b68e.exe /f & erase C:\Users\Admin\AppData\Local\Temp\967d90f032f3ade87f45fbeee035b68e.exe & exit2⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\taskkill.exetaskkill /im 967d90f032f3ade87f45fbeee035b68e.exe /f3⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
memory/208-3-0x0000000004E10000-0x0000000004E11000-memory.dmp
memory/208-4-0x0000000004E10000-0x0000000004E11000-memory.dmp
memory/208-6-0x0000000005440000-0x0000000005441000-memory.dmp
memory/508-2-0x0000000002430000-0x0000000002431000-memory.dmp
memory/1304-15-0x0000000004C80000-0x0000000004C81000-memory.dmp
memory/1304-18-0x0000000005430000-0x0000000005431000-memory.dmp
memory/1708-26-0x0000000004EB0000-0x0000000004EB1000-memory.dmp
memory/1708-23-0x0000000004880000-0x0000000004881000-memory.dmp
memory/2160-19-0x0000000004550000-0x0000000004551000-memory.dmp
memory/2160-22-0x0000000004B80000-0x0000000004B81000-memory.dmp
memory/2312-10-0x00000000049B0000-0x00000000049B1000-memory.dmp
memory/2312-7-0x0000000004280000-0x0000000004281000-memory.dmp
memory/2896-251-0x0000000004EC0000-0x0000000004EC1000-memory.dmp
memory/2896-255-0x0000000005870000-0x0000000005871000-memory.dmp
memory/3288-14-0x0000000005760000-0x0000000005761000-memory.dmp
memory/3288-11-0x0000000005130000-0x0000000005131000-memory.dmp