Analysis
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max time kernel
68s -
max time network
46s -
platform
windows7_x64 -
resource
win7-20220414-en -
submitted
21-05-2022 12:40
General
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Target
未付发票付款USD_.exe
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Size
606KB
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MD5
e26c1a2e7a9cc1d8123376e0d3463578
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SHA1
3d6694eac8f1ffd542a597a3ae99909511c2af0a
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SHA256
f926c0f688d754fe65d6920b383aa16bf9aeb87910bfd1138fbe32e271a46eda
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SHA512
546e6ad52cd746c5466572a34cc329f3334a6069386549b49c365cc4e57416288dd952a2cc5aed1040842d7b3ba07229a1279fc2fe9c04fb0a96224fc445cd4d
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 6 IoCs
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Looks for VirtualBox Guest Additions in registry 2 TTPs
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Looks for VMWare Tools registry key 2 TTPs
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Checks BIOS information in registry 2 TTPs 2 IoCs
BIOS information is often read in order to detect sandboxing environments.
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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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Maps connected drives based on registry 3 TTPs 2 IoCs
Disk information is often read in order to detect sandboxing environments.
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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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Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
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Suspicious behavior: EnumeratesProcesses 5 IoCs
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Suspicious use of AdjustPrivilegeToken 2 IoCs
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Suspicious use of WriteProcessMemory 13 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\未付发票付款USD_.exe"C:\Users\Admin\AppData\Local\Temp\未付发票付款USD_.exe"1⤵
- Checks BIOS information in registry
- Maps connected drives based on registry
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\dlmftbwRO" /XML "C:\Users\Admin\AppData\Local\Temp\tmpDE4F.tmp"2⤵
- Creates scheduled task(s)
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C:\Users\Admin\AppData\Local\Temp\未付发票付款USD_.exe"{path}"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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C:\Users\Admin\AppData\Local\Temp\tmpDE4F.tmpFilesize
1KB
MD5d89ba2983bbace69e5986e4d6a9aab5c
SHA18dac0d52af5326668c9cfdc34f63f9f8955318cd
SHA256b8de3caeab3ebfeeb9db24509e0f6b1b8d9e9469024b92b3298f9d17b6f1ccf7
SHA5126606b0db67d75490f4b17c00bc76db9ed1f2ffee2276ef4630f9b3040f1b97cc68f475de59375c542fcc64c486362836c208a1f91b361c83d16ed5d13f13edd4
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memory/472-62-0x0000000000400000-0x0000000000466000-memory.dmpFilesize
408KB
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memory/472-59-0x0000000000400000-0x0000000000466000-memory.dmpFilesize
408KB
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memory/472-61-0x0000000000400000-0x0000000000466000-memory.dmpFilesize
408KB
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memory/472-58-0x0000000000400000-0x0000000000466000-memory.dmpFilesize
408KB
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memory/472-63-0x0000000000400000-0x0000000000466000-memory.dmpFilesize
408KB
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memory/472-64-0x00000000004610BE-mapping.dmp
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memory/472-66-0x0000000000400000-0x0000000000466000-memory.dmpFilesize
408KB
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memory/472-68-0x0000000000400000-0x0000000000466000-memory.dmpFilesize
408KB
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memory/472-70-0x0000000074580000-0x0000000074B2B000-memory.dmpFilesize
5.7MB
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memory/1604-56-0x0000000000000000-mapping.dmp
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memory/1908-55-0x0000000074580000-0x0000000074B2B000-memory.dmpFilesize
5.7MB
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memory/1908-54-0x0000000075FC1000-0x0000000075FC3000-memory.dmpFilesize
8KB