Analysis
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max time kernel
97s -
max time network
105s -
platform
windows10_x64 -
resource
win10v20210408 -
submitted
26-09-2021 15:01
Static task
static1
Behavioral task
behavioral1
Sample
E442.exe
Resource
win7-en-20210920
General
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Target
E442.exe
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Size
292KB
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MD5
4bb4625eefca3f9dfa7ceb06e2ed0acf
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SHA1
17eef61253fb891fefe31852db649c328e718c1f
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SHA256
4bf0b22a3a3a941e5e656212af53bdacd3cc42a104bfdf0a331f3819d82384d5
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SHA512
d2893a37226007207c2ad04f2b40e0ec9aa91478fc65792c8f487435d018368b7f85ddd639212cf0b827f5e7c8cfffa1449962a803a18e3efc3c5cfd6c05792b
Malware Config
Signatures
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Arkei Stealer Payload 1 IoCs
Processes:
resource yara_rule behavioral2/memory/740-115-0x0000000000400000-0x000000000044D000-memory.dmp family_arkei -
Downloads MZ/PE file
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Loads dropped DLL 3 IoCs
Processes:
E442.exepid process 740 E442.exe 740 E442.exe 740 E442.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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Program crash 1 IoCs
Processes:
WerFault.exepid pid_target process target process 1208 740 WerFault.exe E442.exe -
Suspicious behavior: EnumeratesProcesses 13 IoCs
Processes:
WerFault.exepid process 1208 WerFault.exe 1208 WerFault.exe 1208 WerFault.exe 1208 WerFault.exe 1208 WerFault.exe 1208 WerFault.exe 1208 WerFault.exe 1208 WerFault.exe 1208 WerFault.exe 1208 WerFault.exe 1208 WerFault.exe 1208 WerFault.exe 1208 WerFault.exe -
Suspicious use of AdjustPrivilegeToken 3 IoCs
Processes:
WerFault.exedescription pid process Token: SeRestorePrivilege 1208 WerFault.exe Token: SeBackupPrivilege 1208 WerFault.exe Token: SeDebugPrivilege 1208 WerFault.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\E442.exe"C:\Users\Admin\AppData\Local\Temp\E442.exe"1⤵
- Loads dropped DLL
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 740 -s 12882⤵
- Program crash
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
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Downloads
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\ProgramData\mozglue.dllMD5
8f73c08a9660691143661bf7332c3c27
SHA137fa65dd737c50fda710fdbde89e51374d0c204a
SHA2563fe6b1c54b8cf28f571e0c5d6636b4069a8ab00b4f11dd842cfec00691d0c9cd
SHA5120042ecf9b3571bb5eba2de893e8b2371df18f7c5a589f52ee66e4bfbaa15a5b8b7cc6a155792aaa8988528c27196896d5e82e1751c998bacea0d92395f66ad89
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\ProgramData\nss3.dllMD5
bfac4e3c5908856ba17d41edcd455a51
SHA18eec7e888767aa9e4cca8ff246eb2aacb9170428
SHA256e2935b5b28550d47dc971f456d6961f20d1633b4892998750140e0eaa9ae9d78
SHA5122565bab776c4d732ffb1f9b415992a4c65b81bcd644a9a1df1333a269e322925fc1df4f76913463296efd7c88ef194c3056de2f1ca1357d7b5fe5ff0da877a66
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\ProgramData\sqlite3.dllMD5
e477a96c8f2b18d6b5c27bde49c990bf
SHA1e980c9bf41330d1e5bd04556db4646a0210f7409
SHA25616574f51785b0e2fc29c2c61477eb47bb39f714829999511dc8952b43ab17660
SHA512335a86268e7c0e568b1c30981ec644e6cd332e66f96d2551b58a82515316693c1859d87b4f4b7310cf1ac386cee671580fdd999c3bcb23acf2c2282c01c8798c
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memory/740-114-0x0000000000530000-0x000000000067A000-memory.dmpFilesize
1.3MB
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memory/740-115-0x0000000000400000-0x000000000044D000-memory.dmpFilesize
308KB