Analysis
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max time kernel
119s -
max time network
125s -
platform
windows10_x64 -
resource
win10-en-20211014 -
submitted
16-11-2021 07:55
Static task
static1
General
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Target
f73083131c826bacf43061f3e7a83946be04b2a2c4c7ad0170574f381206f202.exe
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Size
342KB
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MD5
14b619ec65172a9dfa91a216201d441c
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SHA1
f1c38546761477c69dd054c24bf4f52ca5ab6b73
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SHA256
f73083131c826bacf43061f3e7a83946be04b2a2c4c7ad0170574f381206f202
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SHA512
11311325f9c6f618a0fee17b17ed1b637b00d63a4a9a950d65f81847c08c7c83e68ccf225164637c7978c751ffb2c282dc4638d0a0c00a90722a4dc11d3a0713
Malware Config
Extracted
arkei
Default
http://file-file-host4.com/tratata.php
Signatures
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Arkei Stealer Payload 2 IoCs
Processes:
resource yara_rule behavioral1/memory/2540-117-0x0000000000400000-0x000000000277D000-memory.dmp family_arkei behavioral1/memory/2540-116-0x00000000029F0000-0x0000000002A11000-memory.dmp family_arkei -
Downloads MZ/PE file
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Loads dropped DLL 3 IoCs
Processes:
f73083131c826bacf43061f3e7a83946be04b2a2c4c7ad0170574f381206f202.exepid Process 2540 f73083131c826bacf43061f3e7a83946be04b2a2c4c7ad0170574f381206f202.exe 2540 f73083131c826bacf43061f3e7a83946be04b2a2c4c7ad0170574f381206f202.exe 2540 f73083131c826bacf43061f3e7a83946be04b2a2c4c7ad0170574f381206f202.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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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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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:
f73083131c826bacf43061f3e7a83946be04b2a2c4c7ad0170574f381206f202.exedescription ioc Process Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 f73083131c826bacf43061f3e7a83946be04b2a2c4c7ad0170574f381206f202.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString f73083131c826bacf43061f3e7a83946be04b2a2c4c7ad0170574f381206f202.exe -
Delays execution with timeout.exe 1 IoCs
Processes:
timeout.exepid Process 3672 timeout.exe -
Suspicious use of WriteProcessMemory 6 IoCs
Processes:
f73083131c826bacf43061f3e7a83946be04b2a2c4c7ad0170574f381206f202.execmd.exedescription pid Process procid_target PID 2540 wrote to memory of 3540 2540 f73083131c826bacf43061f3e7a83946be04b2a2c4c7ad0170574f381206f202.exe 69 PID 2540 wrote to memory of 3540 2540 f73083131c826bacf43061f3e7a83946be04b2a2c4c7ad0170574f381206f202.exe 69 PID 2540 wrote to memory of 3540 2540 f73083131c826bacf43061f3e7a83946be04b2a2c4c7ad0170574f381206f202.exe 69 PID 3540 wrote to memory of 3672 3540 cmd.exe 71 PID 3540 wrote to memory of 3672 3540 cmd.exe 71 PID 3540 wrote to memory of 3672 3540 cmd.exe 71
Processes
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C:\Users\Admin\AppData\Local\Temp\f73083131c826bacf43061f3e7a83946be04b2a2c4c7ad0170574f381206f202.exe"C:\Users\Admin\AppData\Local\Temp\f73083131c826bacf43061f3e7a83946be04b2a2c4c7ad0170574f381206f202.exe"1⤵
- Loads dropped DLL
- Checks processor information in registry
- Suspicious use of WriteProcessMemory
PID:2540 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c timeout /t 5 & del /f /q "C:\Users\Admin\AppData\Local\Temp\f73083131c826bacf43061f3e7a83946be04b2a2c4c7ad0170574f381206f202.exe" & exit2⤵
- Suspicious use of WriteProcessMemory
PID:3540 -
C:\Windows\SysWOW64\timeout.exetimeout /t 53⤵
- Delays execution with timeout.exe
PID:3672
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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MD5
8f73c08a9660691143661bf7332c3c27
SHA137fa65dd737c50fda710fdbde89e51374d0c204a
SHA2563fe6b1c54b8cf28f571e0c5d6636b4069a8ab00b4f11dd842cfec00691d0c9cd
SHA5120042ecf9b3571bb5eba2de893e8b2371df18f7c5a589f52ee66e4bfbaa15a5b8b7cc6a155792aaa8988528c27196896d5e82e1751c998bacea0d92395f66ad89
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MD5
bfac4e3c5908856ba17d41edcd455a51
SHA18eec7e888767aa9e4cca8ff246eb2aacb9170428
SHA256e2935b5b28550d47dc971f456d6961f20d1633b4892998750140e0eaa9ae9d78
SHA5122565bab776c4d732ffb1f9b415992a4c65b81bcd644a9a1df1333a269e322925fc1df4f76913463296efd7c88ef194c3056de2f1ca1357d7b5fe5ff0da877a66
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MD5
e477a96c8f2b18d6b5c27bde49c990bf
SHA1e980c9bf41330d1e5bd04556db4646a0210f7409
SHA25616574f51785b0e2fc29c2c61477eb47bb39f714829999511dc8952b43ab17660
SHA512335a86268e7c0e568b1c30981ec644e6cd332e66f96d2551b58a82515316693c1859d87b4f4b7310cf1ac386cee671580fdd999c3bcb23acf2c2282c01c8798c