Analysis
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max time kernel
119s -
max time network
130s -
platform
windows7_x64 -
resource
win7-en-20211208 -
submitted
15-02-2022 05:41
Static task
static1
Behavioral task
behavioral1
Sample
d7d48f0b820099356f9a87cfa776a5b042e0bddf86919ef7eef4c68dfbec3a3f.exe
Resource
win7-en-20211208
General
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Target
d7d48f0b820099356f9a87cfa776a5b042e0bddf86919ef7eef4c68dfbec3a3f.exe
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Size
747KB
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MD5
e1f83b28721f3c95f9064ed44710a484
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SHA1
28e022870babe234e796ba14cf8b69f262eede7e
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SHA256
d7d48f0b820099356f9a87cfa776a5b042e0bddf86919ef7eef4c68dfbec3a3f
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SHA512
c3f699a2bf5c11ec3ef2d417bc49d9c2bc202247a52f5063f45cb549afa7b9a8e20b1100dddafb25eba6e99b2a92cd4b9097b11a7083f1834787af1ba4cb8289
Malware Config
Extracted
vidar
48.3
937
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profile_id
937
Signatures
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suricata: ET MALWARE Suspicious Zipped Filename in Outbound POST Request (Passwords.txt)
suricata: ET MALWARE Suspicious Zipped Filename in Outbound POST Request (Passwords.txt)
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suricata: ET MALWARE Suspicious Zipped Filename in Outbound POST Request (Passwords.txt) M2
suricata: ET MALWARE Suspicious Zipped Filename in Outbound POST Request (Passwords.txt) M2
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suricata: ET MALWARE Suspicious Zipped Filename in Outbound POST Request (passwords.txt) M2
suricata: ET MALWARE Suspicious Zipped Filename in Outbound POST Request (passwords.txt) M2
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suricata: ET MALWARE Vidar/Arkei Stealer Client Data Upload
suricata: ET MALWARE Vidar/Arkei Stealer Client Data Upload
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suricata: ET MALWARE Vidar/Arkei/Megumin/Oski Stealer HTTP POST Pattern
suricata: ET MALWARE Vidar/Arkei/Megumin/Oski Stealer HTTP POST Pattern
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Vidar Stealer 2 IoCs
Processes:
resource yara_rule behavioral1/memory/1668-58-0x0000000002EA0000-0x0000000002F75000-memory.dmp family_vidar behavioral1/memory/1668-59-0x0000000000400000-0x00000000004D8000-memory.dmp family_vidar -
Deletes itself 1 IoCs
Processes:
cmd.exepid process 812 cmd.exe -
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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Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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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:
d7d48f0b820099356f9a87cfa776a5b042e0bddf86919ef7eef4c68dfbec3a3f.exedescription ioc process Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 d7d48f0b820099356f9a87cfa776a5b042e0bddf86919ef7eef4c68dfbec3a3f.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString d7d48f0b820099356f9a87cfa776a5b042e0bddf86919ef7eef4c68dfbec3a3f.exe -
Delays execution with timeout.exe 1 IoCs
Processes:
timeout.exepid process 1176 timeout.exe -
Kills process with taskkill 1 IoCs
Processes:
taskkill.exepid process 1768 taskkill.exe -
Suspicious behavior: EnumeratesProcesses 4 IoCs
Processes:
d7d48f0b820099356f9a87cfa776a5b042e0bddf86919ef7eef4c68dfbec3a3f.exepid process 1668 d7d48f0b820099356f9a87cfa776a5b042e0bddf86919ef7eef4c68dfbec3a3f.exe 1668 d7d48f0b820099356f9a87cfa776a5b042e0bddf86919ef7eef4c68dfbec3a3f.exe 1668 d7d48f0b820099356f9a87cfa776a5b042e0bddf86919ef7eef4c68dfbec3a3f.exe 1668 d7d48f0b820099356f9a87cfa776a5b042e0bddf86919ef7eef4c68dfbec3a3f.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
taskkill.exedescription pid process Token: SeDebugPrivilege 1768 taskkill.exe -
Suspicious use of WriteProcessMemory 12 IoCs
Processes:
d7d48f0b820099356f9a87cfa776a5b042e0bddf86919ef7eef4c68dfbec3a3f.execmd.exedescription pid process target process PID 1668 wrote to memory of 812 1668 d7d48f0b820099356f9a87cfa776a5b042e0bddf86919ef7eef4c68dfbec3a3f.exe cmd.exe PID 1668 wrote to memory of 812 1668 d7d48f0b820099356f9a87cfa776a5b042e0bddf86919ef7eef4c68dfbec3a3f.exe cmd.exe PID 1668 wrote to memory of 812 1668 d7d48f0b820099356f9a87cfa776a5b042e0bddf86919ef7eef4c68dfbec3a3f.exe cmd.exe PID 1668 wrote to memory of 812 1668 d7d48f0b820099356f9a87cfa776a5b042e0bddf86919ef7eef4c68dfbec3a3f.exe cmd.exe PID 812 wrote to memory of 1768 812 cmd.exe taskkill.exe PID 812 wrote to memory of 1768 812 cmd.exe taskkill.exe PID 812 wrote to memory of 1768 812 cmd.exe taskkill.exe PID 812 wrote to memory of 1768 812 cmd.exe taskkill.exe PID 812 wrote to memory of 1176 812 cmd.exe timeout.exe PID 812 wrote to memory of 1176 812 cmd.exe timeout.exe PID 812 wrote to memory of 1176 812 cmd.exe timeout.exe PID 812 wrote to memory of 1176 812 cmd.exe timeout.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\d7d48f0b820099356f9a87cfa776a5b042e0bddf86919ef7eef4c68dfbec3a3f.exe"C:\Users\Admin\AppData\Local\Temp\d7d48f0b820099356f9a87cfa776a5b042e0bddf86919ef7eef4c68dfbec3a3f.exe"1⤵
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c taskkill /im d7d48f0b820099356f9a87cfa776a5b042e0bddf86919ef7eef4c68dfbec3a3f.exe /f & timeout /t 6 & del /f /q "C:\Users\Admin\AppData\Local\Temp\d7d48f0b820099356f9a87cfa776a5b042e0bddf86919ef7eef4c68dfbec3a3f.exe" & del C:\ProgramData\*.dll & exit2⤵
- Deletes itself
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\taskkill.exetaskkill /im d7d48f0b820099356f9a87cfa776a5b042e0bddf86919ef7eef4c68dfbec3a3f.exe /f3⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\SysWOW64\timeout.exetimeout /t 63⤵
- Delays execution with timeout.exe
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
Loading Replay Monitor...
Downloads
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C:\ProgramData\freebl3.dllMD5
8eec510e57f5f732fd2cce73df7b73ef
SHA13c0af39ecb3753c5fee3b53d063c7286019eac3b
SHA25655f7d9e99b8e2d4e0e193b2f0275501e6d9c1ebd29cadbea6a0da48a8587e3e0
SHA51273bbf698482132b5fd60a0b58926fddec9055f8095a53bc52714e211e9340c3419736ceafd6b279667810114d306bfccdcfcddf51c0b67fe9e3c73c54583e574
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C:\ProgramData\mozglue.dllMD5
8eec510e57f5f732fd2cce73df7b73ef
SHA13c0af39ecb3753c5fee3b53d063c7286019eac3b
SHA25655f7d9e99b8e2d4e0e193b2f0275501e6d9c1ebd29cadbea6a0da48a8587e3e0
SHA51273bbf698482132b5fd60a0b58926fddec9055f8095a53bc52714e211e9340c3419736ceafd6b279667810114d306bfccdcfcddf51c0b67fe9e3c73c54583e574
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C:\ProgramData\msvcp140.dllMD5
8eec510e57f5f732fd2cce73df7b73ef
SHA13c0af39ecb3753c5fee3b53d063c7286019eac3b
SHA25655f7d9e99b8e2d4e0e193b2f0275501e6d9c1ebd29cadbea6a0da48a8587e3e0
SHA51273bbf698482132b5fd60a0b58926fddec9055f8095a53bc52714e211e9340c3419736ceafd6b279667810114d306bfccdcfcddf51c0b67fe9e3c73c54583e574
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C:\ProgramData\nss3.dllMD5
8eec510e57f5f732fd2cce73df7b73ef
SHA13c0af39ecb3753c5fee3b53d063c7286019eac3b
SHA25655f7d9e99b8e2d4e0e193b2f0275501e6d9c1ebd29cadbea6a0da48a8587e3e0
SHA51273bbf698482132b5fd60a0b58926fddec9055f8095a53bc52714e211e9340c3419736ceafd6b279667810114d306bfccdcfcddf51c0b67fe9e3c73c54583e574
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C:\ProgramData\softokn3.dllMD5
8eec510e57f5f732fd2cce73df7b73ef
SHA13c0af39ecb3753c5fee3b53d063c7286019eac3b
SHA25655f7d9e99b8e2d4e0e193b2f0275501e6d9c1ebd29cadbea6a0da48a8587e3e0
SHA51273bbf698482132b5fd60a0b58926fddec9055f8095a53bc52714e211e9340c3419736ceafd6b279667810114d306bfccdcfcddf51c0b67fe9e3c73c54583e574
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C:\ProgramData\vcruntime140.dllMD5
8eec510e57f5f732fd2cce73df7b73ef
SHA13c0af39ecb3753c5fee3b53d063c7286019eac3b
SHA25655f7d9e99b8e2d4e0e193b2f0275501e6d9c1ebd29cadbea6a0da48a8587e3e0
SHA51273bbf698482132b5fd60a0b58926fddec9055f8095a53bc52714e211e9340c3419736ceafd6b279667810114d306bfccdcfcddf51c0b67fe9e3c73c54583e574
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memory/1668-55-0x000000000301B000-0x0000000003097000-memory.dmpFilesize
496KB
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memory/1668-56-0x0000000076641000-0x0000000076643000-memory.dmpFilesize
8KB
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memory/1668-57-0x000000000301B000-0x0000000003097000-memory.dmpFilesize
496KB
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memory/1668-58-0x0000000002EA0000-0x0000000002F75000-memory.dmpFilesize
852KB
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memory/1668-59-0x0000000000400000-0x00000000004D8000-memory.dmpFilesize
864KB