Analysis
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max time kernel
123s -
max time network
166s -
platform
windows10_x64 -
resource
win10-en-20211014 -
submitted
21-10-2021 03:58
General
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Target
??40208 Accell Asia Limited Taiwan Branch.exe
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Size
540KB
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MD5
1a1063bd01a0f01cecb94f9efc1bf7f1
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SHA1
c4ef80030868b1e8dcda424e082004cc8af4e66f
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SHA256
bd492d0d70877fb5b6eeb357cb8c57efa47df4d5d7cc6547958da94cbfddd7d3
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SHA512
5be288dcc77978c974f54cad7822c40c61fb0462efb99d621b99d54ab01343e6f629d257d527a517843c3f58d5f0c38f9dd15d5713433802ada83f71ef056b4f
Malware Config
Signatures
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AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
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AgentTesla Payload 3 IoCs
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Loads dropped DLL 1 IoCs
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Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
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Reads user/profile data of local email clients 2 TTPs
Email clients store some user data on disk where infostealers will often target it.
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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 Microsoft Outlook profiles 1 TTPs 3 IoCs
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Suspicious use of SetThreadContext 1 IoCs
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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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Suspicious behavior: EnumeratesProcesses 2 IoCs
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Suspicious use of AdjustPrivilegeToken 1 IoCs
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Suspicious use of WriteProcessMemory 10 IoCs
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outlook_office_path 1 IoCs
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outlook_win_path 1 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\__40208 Accell Asia Limited Taiwan Branch.exe"C:\Users\Admin\AppData\Local\Temp\__40208 Accell Asia Limited Taiwan Branch.exe"1⤵
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\__40208 Accell Asia Limited Taiwan Branch.exe"C:\Users\Admin\AppData\Local\Temp\__40208 Accell Asia Limited Taiwan Branch.exe"2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
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Downloads
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\Users\Admin\AppData\Local\Temp\nsh15E6.tmp\jxalbh.dllMD5
f6dc83a169c1cb3d0330da420f2157a1
SHA19b528977445219b3b6c422dd650f85fc3374a76a
SHA25644480473703cf2507ea7921710f13a151b0d22426b6696d3a8689d89d1954f58
SHA5128b2b6f09bf10ceb36298ccc7c7745df4735e766576ef4dd20daa36e41101f02d84607dc162f31ad8c0c98ae25a7b546273340852da7dfdfe18f747f4daf2071b
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memory/2552-116-0x0000000000400000-0x000000000044B000-memory.dmpFilesize
300KB
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memory/2552-117-0x000000000040188B-mapping.dmp
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memory/2552-118-0x0000000000400000-0x000000000044B000-memory.dmpFilesize
300KB
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memory/2552-119-0x00000000005C0000-0x00000000005C1000-memory.dmpFilesize
4KB
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memory/2552-121-0x00000000005C7000-0x00000000005C8000-memory.dmpFilesize
4KB
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memory/2552-120-0x00000000005C1000-0x00000000005C2000-memory.dmpFilesize
4KB
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memory/2552-122-0x00000000005C2000-0x00000000005C4000-memory.dmpFilesize
8KB
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memory/2552-123-0x00000000005C8000-0x00000000005C9000-memory.dmpFilesize
4KB
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memory/2552-124-0x00000000005CD000-0x00000000005CF000-memory.dmpFilesize
8KB