Analysis
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max time kernel
91s -
max time network
156s -
platform
windows10-2004_x64 -
resource
win10v2004-20220414-en -
submitted
20-05-2022 17:50
General
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Target
SecuriteInfo.com.Trojan.MSIL.Formbook.NUM.MTB.2339.exe
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Size
1.5MB
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MD5
3c4b2b063479b125c6e807ebcec61fef
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SHA1
38ae16f7928bca6ce1cb9d307604bcfa9be2da43
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SHA256
1ee02de26540eaa184f366e18366bda9ab636c9ce1918ff17eab10d9455c1a6c
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SHA512
9175713a088a075c56ce1449d4c1317b1025624f7f7a27c05f0447fec0db4b26e9c045c723cb0a2e0581a83688cd4ef45e16a4cd25eefc9c52e13cb0ff47317a
Malware Config
Signatures
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Arkei
Arkei is an infostealer written in C++.
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Downloads MZ/PE file
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Loads dropped DLL 3 IoCs
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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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Suspicious use of SetThreadContext 1 IoCs
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Program crash 1 IoCs
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Suspicious behavior: EnumeratesProcesses 4 IoCs
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Suspicious use of AdjustPrivilegeToken 1 IoCs
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Suspicious use of WriteProcessMemory 10 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Trojan.MSIL.Formbook.NUM.MTB.2339.exe"C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Trojan.MSIL.Formbook.NUM.MTB.2339.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Trojan.MSIL.Formbook.NUM.MTB.2339.exe"C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Trojan.MSIL.Formbook.NUM.MTB.2339.exe"2⤵
- Loads dropped DLL
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 4288 -s 13523⤵
- Program crash
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4288 -ip 42881⤵
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
133KB
MD58f73c08a9660691143661bf7332c3c27
SHA137fa65dd737c50fda710fdbde89e51374d0c204a
SHA2563fe6b1c54b8cf28f571e0c5d6636b4069a8ab00b4f11dd842cfec00691d0c9cd
SHA5120042ecf9b3571bb5eba2de893e8b2371df18f7c5a589f52ee66e4bfbaa15a5b8b7cc6a155792aaa8988528c27196896d5e82e1751c998bacea0d92395f66ad89
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Filesize
1.2MB
MD5bfac4e3c5908856ba17d41edcd455a51
SHA18eec7e888767aa9e4cca8ff246eb2aacb9170428
SHA256e2935b5b28550d47dc971f456d6961f20d1633b4892998750140e0eaa9ae9d78
SHA5122565bab776c4d732ffb1f9b415992a4c65b81bcd644a9a1df1333a269e322925fc1df4f76913463296efd7c88ef194c3056de2f1ca1357d7b5fe5ff0da877a66
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Filesize
630KB
MD5e477a96c8f2b18d6b5c27bde49c990bf
SHA1e980c9bf41330d1e5bd04556db4646a0210f7409
SHA25616574f51785b0e2fc29c2c61477eb47bb39f714829999511dc8952b43ab17660
SHA512335a86268e7c0e568b1c30981ec644e6cd332e66f96d2551b58a82515316693c1859d87b4f4b7310cf1ac386cee671580fdd999c3bcb23acf2c2282c01c8798c
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Filesize
5.6MB
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Filesize
624KB
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Filesize
584KB
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Filesize
40KB
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Filesize
136KB
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Filesize
1016KB
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Filesize
112KB
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Filesize
112KB
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Filesize
112KB