Analysis
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max time kernel
123s -
max time network
131s -
platform
windows10_x64 -
resource
win10-en-20210920 -
submitted
22-10-2021 18:42
Static task
static1
Behavioral task
behavioral1
Sample
33312ed9ae90f5bc1158f5d77db9e2f5.exe
Resource
win7-en-20211014
General
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Target
33312ed9ae90f5bc1158f5d77db9e2f5.exe
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Size
714KB
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MD5
33312ed9ae90f5bc1158f5d77db9e2f5
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SHA1
55b3b14afd90d8fb09dc4017a30960cd41da3a4d
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SHA256
e3cc1d9e6c4d4c641410780650e30c1719e66d2885c82dbb1042767de4f25de9
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SHA512
5b07f5f4ef1aec19b875b45361071a8d784f187336d4141a70c2d981e148a6e9b0752190aa08720904a5a1c7abdb94a34988c2884b96abe21f828d69333e3bdc
Malware Config
Extracted
redline
mix22.10
185.215.113.15:21508
Signatures
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RedLine
RedLine Stealer is a malware family written in C#, first appearing in early 2020.
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RedLine Payload 2 IoCs
Processes:
resource yara_rule behavioral2/memory/3144-123-0x0000000004C50000-0x0000000004C6C000-memory.dmp family_redline behavioral2/memory/3144-125-0x0000000004F30000-0x0000000004F4A000-memory.dmp family_redline -
suricata: ET MALWARE AutoHotkey Downloader Checkin via IPLogger
suricata: ET MALWARE AutoHotkey Downloader Checkin via IPLogger
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suricata: ET MALWARE Terse alphanumeric executable downloader high likelihood of being hostile
suricata: ET MALWARE Terse alphanumeric executable downloader high likelihood of being hostile
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Downloads MZ/PE file
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Executes dropped EXE 1 IoCs
Processes:
arinesp.exepid process 3144 arinesp.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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Legitimate hosting services abused for malware hosting/C2 1 TTPs
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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:
33312ed9ae90f5bc1158f5d77db9e2f5.exedescription ioc process Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 33312ed9ae90f5bc1158f5d77db9e2f5.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString 33312ed9ae90f5bc1158f5d77db9e2f5.exe -
Suspicious behavior: EnumeratesProcesses 1 IoCs
Processes:
arinesp.exepid process 3144 arinesp.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
arinesp.exedescription pid process Token: SeDebugPrivilege 3144 arinesp.exe -
Suspicious use of WriteProcessMemory 3 IoCs
Processes:
33312ed9ae90f5bc1158f5d77db9e2f5.exedescription pid process target process PID 2640 wrote to memory of 3144 2640 33312ed9ae90f5bc1158f5d77db9e2f5.exe arinesp.exe PID 2640 wrote to memory of 3144 2640 33312ed9ae90f5bc1158f5d77db9e2f5.exe arinesp.exe PID 2640 wrote to memory of 3144 2640 33312ed9ae90f5bc1158f5d77db9e2f5.exe arinesp.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\33312ed9ae90f5bc1158f5d77db9e2f5.exe"C:\Users\Admin\AppData\Local\Temp\33312ed9ae90f5bc1158f5d77db9e2f5.exe"1⤵
- Checks processor information in registry
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Roaming\wowsfree\arinesp.exearinesp.exe2⤵
- Executes dropped EXE
- 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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C:\Users\Admin\AppData\Roaming\wowsfree\arinesp.exeMD5
1ae3794f124bfc4723c91150469a408a
SHA13a1ec7ab994293f8ffc0e5c5f79959ada980582c
SHA25612ab922da7afdaec8bc1a2fc551f41aa9703efc19186b50eee1e42edda7fd721
SHA5128405e811fdda76b49893a857c2007a85e3db9ab3c44317c3afcd954122ae4c98559bad42acb52176c0dd0d4c65d12e952d9df33aaa1966d06e827f2b2b44a1f3
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C:\Users\Admin\AppData\Roaming\wowsfree\arinesp.exeMD5
1ae3794f124bfc4723c91150469a408a
SHA13a1ec7ab994293f8ffc0e5c5f79959ada980582c
SHA25612ab922da7afdaec8bc1a2fc551f41aa9703efc19186b50eee1e42edda7fd721
SHA5128405e811fdda76b49893a857c2007a85e3db9ab3c44317c3afcd954122ae4c98559bad42acb52176c0dd0d4c65d12e952d9df33aaa1966d06e827f2b2b44a1f3
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memory/2640-117-0x0000000000400000-0x00000000008E2000-memory.dmpFilesize
4.9MB
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memory/2640-116-0x0000000000D90000-0x0000000000E5F000-memory.dmpFilesize
828KB
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memory/2640-115-0x0000000000A5B000-0x0000000000AC7000-memory.dmpFilesize
432KB
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memory/3144-127-0x0000000004FD0000-0x0000000004FD1000-memory.dmpFilesize
4KB
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memory/3144-131-0x0000000004F92000-0x0000000004F93000-memory.dmpFilesize
4KB
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memory/3144-121-0x0000000002F70000-0x0000000002F91000-memory.dmpFilesize
132KB
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memory/3144-123-0x0000000004C50000-0x0000000004C6C000-memory.dmpFilesize
112KB
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memory/3144-124-0x0000000007640000-0x0000000007641000-memory.dmpFilesize
4KB
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memory/3144-125-0x0000000004F30000-0x0000000004F4A000-memory.dmpFilesize
104KB
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memory/3144-126-0x0000000007B40000-0x0000000007B41000-memory.dmpFilesize
4KB
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memory/3144-118-0x0000000000000000-mapping.dmp
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memory/3144-128-0x0000000008150000-0x0000000008151000-memory.dmpFilesize
4KB
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memory/3144-129-0x0000000000400000-0x0000000002F1A000-memory.dmpFilesize
43.1MB
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memory/3144-130-0x0000000004F90000-0x0000000004F91000-memory.dmpFilesize
4KB
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memory/3144-122-0x0000000002FC0000-0x000000000306E000-memory.dmpFilesize
696KB
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memory/3144-132-0x0000000004F94000-0x0000000004F96000-memory.dmpFilesize
8KB
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memory/3144-133-0x0000000004F93000-0x0000000004F94000-memory.dmpFilesize
4KB
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memory/3144-134-0x0000000005120000-0x0000000005121000-memory.dmpFilesize
4KB
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memory/3144-135-0x0000000005190000-0x0000000005191000-memory.dmpFilesize
4KB
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memory/3144-136-0x00000000086D0000-0x00000000086D1000-memory.dmpFilesize
4KB
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memory/3144-137-0x00000000087B0000-0x00000000087B1000-memory.dmpFilesize
4KB
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memory/3144-138-0x0000000008990000-0x0000000008991000-memory.dmpFilesize
4KB
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memory/3144-139-0x0000000008A30000-0x0000000008A31000-memory.dmpFilesize
4KB
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memory/3144-140-0x0000000008EB0000-0x0000000008EB1000-memory.dmpFilesize
4KB
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memory/3144-141-0x0000000009080000-0x0000000009081000-memory.dmpFilesize
4KB