Analysis
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max time kernel
147s -
max time network
152s -
platform
windows10-2004_x64 -
resource
win10v2004-20240802-en -
resource tags
arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system -
submitted
10/09/2024, 03:51
Static task
static1
Behavioral task
behavioral1
Sample
2024-09-10_40d889427c3db5dcf479378dcac954c9_cobalt-strike_ryuk.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
2024-09-10_40d889427c3db5dcf479378dcac954c9_cobalt-strike_ryuk.exe
Resource
win10v2004-20240802-en
General
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Target
2024-09-10_40d889427c3db5dcf479378dcac954c9_cobalt-strike_ryuk.exe
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Size
951KB
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MD5
40d889427c3db5dcf479378dcac954c9
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SHA1
e60fe132d8ddffd242f794b3ebbe2f8ab04824ff
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SHA256
030405f03e9152882d7a480cd4af1ae1e60ab5e10a010c4ac98bad7d8b9c05b4
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SHA512
97f2b968621647ca5de8ff99e321f8a3620a808e6b5af0085274a53ec1bbc6310ee7808e4b4f4d831bb18a7c3e78c8fd242f9aa9a276a5d3ac9070f32d7ed862
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SSDEEP
12288:4QwwPAuxstPiXhK3WX89QLkTtgoYfZFV8BxNDCDZc5bP+MZQFVFmh/Z/4ANyB0:4QKuxst/3WugoBNGD9MaNB
Malware Config
Extracted
cobaltstrike
http://124.222.72.51:4433/fl9R
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user_agent
User-Agent: Mozilla/5.0 (compatible; MSIE 9.0; Windows NT 6.1; Trident/5.0; FunWebProducts; IE0006_ver1;EN_GB)
Signatures
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Cobaltstrike
Detected malicious payload which is part of Cobaltstrike.
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Suspicious behavior: MapViewOfSection 1 IoCs
pid Process 2272 2024-09-10_40d889427c3db5dcf479378dcac954c9_cobalt-strike_ryuk.exe -
Suspicious use of WriteProcessMemory 2 IoCs
description pid Process procid_target PID 2272 wrote to memory of 444 2272 2024-09-10_40d889427c3db5dcf479378dcac954c9_cobalt-strike_ryuk.exe 91 PID 2272 wrote to memory of 444 2272 2024-09-10_40d889427c3db5dcf479378dcac954c9_cobalt-strike_ryuk.exe 91
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-09-10_40d889427c3db5dcf479378dcac954c9_cobalt-strike_ryuk.exe"C:\Users\Admin\AppData\Local\Temp\2024-09-10_40d889427c3db5dcf479378dcac954c9_cobalt-strike_ryuk.exe"1⤵
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:2272 -
C:\Windows\System32\nslookup.exe"C:\Windows\System32\nslookup.exe"2⤵PID:444
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C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --field-trial-handle=4376,i,11708048364682646792,608099842549576907,262144 --variations-seed-version --mojo-platform-channel-handle=4088 /prefetch:81⤵PID:4864