Analysis
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max time kernel
161s -
max time network
170s -
platform
windows7_x64 -
resource
win7-20230831-en -
resource tags
arch:x64arch:x86image:win7-20230831-enlocale:en-usos:windows7-x64system -
submitted
06-10-2023 15:56
Behavioral task
behavioral1
Sample
Stub.exe
Resource
win7-20230831-en
General
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Target
Stub.exe
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Size
65KB
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MD5
46d01b897ab24927386d833e630b169b
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SHA1
561605aee3e28603fe8e13bf9842b43daa2cc643
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SHA256
9be72fd888085db2d0b72e1bd4a2c4e986b5c0ad6c1ce873c25d6cf289bc72e0
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SHA512
62d8afd488eed1a5478b3bf0b432d8d32e8e31b4590d43a7773665d4c2158e985d29b8f3226f18cd10da9558b040bddcff7cff7ded3dc38e8f5612453d8dae6e
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SSDEEP
1536:/A2Fhvk7JknoDR58tXwL6cgue6rsgE8PU6agj3OJ4G+hbtEd7AJRX8roTR9x:Y2FhvkNkgE8PU6ag6J4zhbtlW2nx
Malware Config
Extracted
asyncrat
| Edit 3LOSH RAT
joker
209.145.56.0:57
AsyncMutex_fff
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delay
3
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install
false
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install_folder
%AppData%
Signatures
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Async RAT payload 2 IoCs
Processes:
resource yara_rule behavioral1/memory/1892-1-0x00000000003D0000-0x00000000003E6000-memory.dmp asyncrat behavioral1/memory/1892-2-0x0000000000350000-0x0000000000390000-memory.dmp asyncrat -
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 behavior: EnumeratesProcesses 1 IoCs
Processes:
Stub.exepid process 1892 Stub.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
Stub.exedescription pid process Token: SeDebugPrivilege 1892 Stub.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
Processes:
Stub.exepid process 1892 Stub.exe
Processes
Network
MITRE ATT&CK Matrix ATT&CK v13
Replay Monitor
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Downloads
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C:\Users\Admin\AppData\Local\Temp\Cab428.tmpFilesize
61KB
MD5f3441b8572aae8801c04f3060b550443
SHA14ef0a35436125d6821831ef36c28ffaf196cda15
SHA2566720349e7d82ee0a8e73920d3c2b7cb2912d9fcf2edb6fd98f2f12820158b0bf
SHA5125ba01ba421b50030e380ae6bbcd2f681f2a91947fe7fedb3c8e6b5f24dce9517abf57b1cf26cc6078d4bb53bde6fcfb2561591337c841f8f2cb121a3d71661b9
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C:\Users\Admin\AppData\Local\Temp\Tar1E20.tmpFilesize
163KB
MD59441737383d21192400eca82fda910ec
SHA1725e0d606a4fc9ba44aa8ffde65bed15e65367e4
SHA256bc3a6e84e41faeb57e7c21aa3b60c2a64777107009727c5b7c0ed8fe658909e5
SHA5127608dd653a66cd364392a78d4711b48d1707768d36996e4d38871c6843b5714e1d7da4b4cc6db969e6000cfa182bcb74216ef6823d1063f036fc5c3413fb8dcf
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memory/1892-0-0x0000000074230000-0x000000007491E000-memory.dmpFilesize
6.9MB
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memory/1892-1-0x00000000003D0000-0x00000000003E6000-memory.dmpFilesize
88KB
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memory/1892-2-0x0000000000350000-0x0000000000390000-memory.dmpFilesize
256KB
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memory/1892-3-0x0000000074230000-0x000000007491E000-memory.dmpFilesize
6.9MB
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memory/1892-4-0x0000000000350000-0x0000000000390000-memory.dmpFilesize
256KB