Analysis
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max time kernel
121s -
max time network
130s -
platform
windows10_x64 -
resource
win10-en-20211208 -
submitted
26-01-2022 22:38
Static task
static1
Behavioral task
behavioral1
Sample
2b2ec30a2bf1c7166055e754a04c6ecf.exe
Resource
win7-en-20211208
General
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Target
2b2ec30a2bf1c7166055e754a04c6ecf.exe
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Size
1.7MB
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MD5
2b2ec30a2bf1c7166055e754a04c6ecf
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SHA1
c4d2b04eab134dd058994633765410d9aefbe837
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SHA256
74fad8e9b1a82d813dd72fce23abdc2d3819496750910c6cdcd70d7398831e2c
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SHA512
18642acdb1231b79112f66b06e47dee922eae4ed89a9cb00227e636833e76416023efd54c2e2728fe179659e796844fb545168248811fc2e823dc38e78e96f3e
Malware Config
Extracted
arkei
Default
http://37.252.15.126/dhbUc2MgYS.php
Signatures
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Arkei Stealer Payload 2 IoCs
Processes:
resource yara_rule behavioral2/memory/3772-116-0x0000000000330000-0x00000000004CD000-memory.dmp family_arkei behavioral2/memory/3772-117-0x0000000000330000-0x00000000004CD000-memory.dmp family_arkei -
Downloads MZ/PE file
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Loads dropped DLL 3 IoCs
Processes:
2b2ec30a2bf1c7166055e754a04c6ecf.exepid process 3772 2b2ec30a2bf1c7166055e754a04c6ecf.exe 3772 2b2ec30a2bf1c7166055e754a04c6ecf.exe 3772 2b2ec30a2bf1c7166055e754a04c6ecf.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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Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
Processes:
2b2ec30a2bf1c7166055e754a04c6ecf.exepid process 3772 2b2ec30a2bf1c7166055e754a04c6ecf.exe -
Program crash 1 IoCs
Processes:
WerFault.exepid pid_target process target process 3596 3772 WerFault.exe 2b2ec30a2bf1c7166055e754a04c6ecf.exe -
Suspicious behavior: EnumeratesProcesses 14 IoCs
Processes:
2b2ec30a2bf1c7166055e754a04c6ecf.exeWerFault.exepid process 3772 2b2ec30a2bf1c7166055e754a04c6ecf.exe 3772 2b2ec30a2bf1c7166055e754a04c6ecf.exe 3596 WerFault.exe 3596 WerFault.exe 3596 WerFault.exe 3596 WerFault.exe 3596 WerFault.exe 3596 WerFault.exe 3596 WerFault.exe 3596 WerFault.exe 3596 WerFault.exe 3596 WerFault.exe 3596 WerFault.exe 3596 WerFault.exe -
Suspicious use of AdjustPrivilegeToken 3 IoCs
Processes:
WerFault.exedescription pid process Token: SeRestorePrivilege 3596 WerFault.exe Token: SeBackupPrivilege 3596 WerFault.exe Token: SeDebugPrivilege 3596 WerFault.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\2b2ec30a2bf1c7166055e754a04c6ecf.exe"C:\Users\Admin\AppData\Local\Temp\2b2ec30a2bf1c7166055e754a04c6ecf.exe"1⤵
- Loads dropped DLL
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious behavior: EnumeratesProcesses
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 3772 -s 12562⤵
- Program crash
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
Loading Replay Monitor...
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/3772-115-0x0000000000330000-0x00000000004CD000-memory.dmpFilesize
1.6MB
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memory/3772-116-0x0000000000330000-0x00000000004CD000-memory.dmpFilesize
1.6MB
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memory/3772-117-0x0000000000330000-0x00000000004CD000-memory.dmpFilesize
1.6MB
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memory/3772-118-0x0000000000F40000-0x0000000000F41000-memory.dmpFilesize
4KB
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memory/3772-119-0x0000000074DA0000-0x0000000074F62000-memory.dmpFilesize
1.8MB
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memory/3772-120-0x0000000002C90000-0x0000000002CD6000-memory.dmpFilesize
280KB