Analysis
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max time kernel
1726s -
max time network
1798s -
platform
windows10_x64 -
resource
win10v20210410 -
submitted
21-04-2021 15:20
Static task
static1
Behavioral task
behavioral1
Sample
kelly.n.dll
Resource
win10v20210410
General
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Target
kelly.n.dll
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Size
335KB
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MD5
22427dfa4b50e3111559a198dd95377c
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SHA1
0cc247e4fc18a56b350dbedede1f0f433e18da41
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SHA256
e2c2f2f09847155f7e55b79bc8aa95843aff3686c695277afb655df5905ef8b6
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SHA512
d3552f766c9101acf87581231627d77e53dcfcbc32fd440d539b72e9cf5421ab817f95a94c20176670b1edf1b2c5df8c92ea7c03c7306fe84a3eacf3e1bf7188
Malware Config
Extracted
hancitor
2104_mmvm
http://lectionalt.com/8/forum.php
http://palimenciont.ru/8/forum.php
http://sidainopecelf.ru/8/forum.php
Extracted
fickerstealer
sweyblidian.com:80
Signatures
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Hancitor
Hancitor is downloader used to deliver other malware families.
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fickerstealer
Ficker is an infostealer written in Rust and ASM.
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Blocklisted process makes network request 17 IoCs
Processes:
rundll32.exeflow pid process 18 976 rundll32.exe 21 976 rundll32.exe 23 976 rundll32.exe 28 976 rundll32.exe 29 976 rundll32.exe 38 976 rundll32.exe 39 976 rundll32.exe 40 976 rundll32.exe 41 976 rundll32.exe 42 976 rundll32.exe 45 976 rundll32.exe 46 976 rundll32.exe 47 976 rundll32.exe 48 976 rundll32.exe 49 976 rundll32.exe 51 976 rundll32.exe 52 976 rundll32.exe -
Downloads MZ/PE file
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Reads local data of messenger clients 2 TTPs
Infostealers often target stored data of messaging applications, which can include saved credentials and account information.
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Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
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Looks up external IP address via web service 1 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
Processes:
flow ioc 17 api.ipify.org -
Suspicious use of SetThreadContext 1 IoCs
Processes:
rundll32.exedescription pid process target process PID 976 set thread context of 3364 976 rundll32.exe svchost.exe -
Checks processor information in registry 2 TTPs 2 IoCs
Processor information is often read in order to detect sandboxing environments.
Processes:
svchost.exedescription ioc process Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 svchost.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString svchost.exe -
Suspicious behavior: EnumeratesProcesses 32 IoCs
Processes:
rundll32.exesvchost.exepid process 976 rundll32.exe 976 rundll32.exe 3364 svchost.exe 3364 svchost.exe 976 rundll32.exe 976 rundll32.exe 976 rundll32.exe 976 rundll32.exe 976 rundll32.exe 976 rundll32.exe 976 rundll32.exe 976 rundll32.exe 976 rundll32.exe 976 rundll32.exe 976 rundll32.exe 976 rundll32.exe 976 rundll32.exe 976 rundll32.exe 976 rundll32.exe 976 rundll32.exe 976 rundll32.exe 976 rundll32.exe 976 rundll32.exe 976 rundll32.exe 976 rundll32.exe 976 rundll32.exe 976 rundll32.exe 976 rundll32.exe 976 rundll32.exe 976 rundll32.exe 976 rundll32.exe 976 rundll32.exe -
Suspicious use of WriteProcessMemory 11 IoCs
Processes:
rundll32.exerundll32.exedescription pid process target process PID 4012 wrote to memory of 976 4012 rundll32.exe rundll32.exe PID 4012 wrote to memory of 976 4012 rundll32.exe rundll32.exe PID 4012 wrote to memory of 976 4012 rundll32.exe rundll32.exe PID 976 wrote to memory of 1568 976 rundll32.exe cmd.exe PID 976 wrote to memory of 1568 976 rundll32.exe cmd.exe PID 976 wrote to memory of 1568 976 rundll32.exe cmd.exe PID 976 wrote to memory of 3364 976 rundll32.exe svchost.exe PID 976 wrote to memory of 3364 976 rundll32.exe svchost.exe PID 976 wrote to memory of 3364 976 rundll32.exe svchost.exe PID 976 wrote to memory of 3364 976 rundll32.exe svchost.exe PID 976 wrote to memory of 3364 976 rundll32.exe svchost.exe
Processes
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C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\kelly.n.dll,#11⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\kelly.n.dll,#12⤵
- Blocklisted process makes network request
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\cmd.exeC:\Windows\system32\cmd.exe /c echo for3⤵
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C:\Windows\SysWOW64\svchost.exeC:\Windows\System32\svchost.exe3⤵
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
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Downloads
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memory/976-114-0x0000000000000000-mapping.dmp
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memory/976-116-0x0000000073620000-0x000000007362A000-memory.dmpFilesize
40KB
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memory/976-117-0x0000000000400000-0x000000000054A000-memory.dmpFilesize
1.3MB
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memory/1568-115-0x0000000000000000-mapping.dmp
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memory/3364-118-0x0000000000400000-0x0000000000448000-memory.dmpFilesize
288KB
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memory/3364-119-0x0000000000401480-mapping.dmp
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memory/3364-122-0x0000000000400000-0x0000000000448000-memory.dmpFilesize
288KB