Analysis
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max time kernel
156s -
max time network
181s -
platform
windows10-2004_x64 -
resource
win10v2004-20220414-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 1 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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Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
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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 6 IoCs
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Suspicious use of AdjustPrivilegeToken 2 IoCs
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Suspicious use of WriteProcessMemory 11 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
- Checks computer location settings
- 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\tmp594B.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
Loading Replay Monitor...
Downloads
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C:\Users\Admin\AppData\Local\Microsoft\CLR_v2.0_32\UsageLogs\未付发票付款USD_.exe.logFilesize
500B
MD5f3bfbe5958adfc86cc0ea0a8317ea113
SHA13bf76848af2edafcacee5f9fb6a06b35a6724015
SHA256598715cafd950c881e4fe318430b5830e95781f2093baa22f124cfad03320874
SHA512873fb9861d615ec3298ccba8231ea3f2a22f2050fe68fea1a6948987942c04f6b40f0b92d5e59f6971cdb429b67877ac2e3cfc953949a0140e03c6cdb8a1139d
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C:\Users\Admin\AppData\Local\Temp\tmp594B.tmpFilesize
1KB
MD52ac665a92366991cc4f303a941b97813
SHA113737eddc540c8fa1da5dfd3c82d52f9cfb88fc2
SHA2566f2c48fd27275922d8f1b374d07fe73b6db0722fd6e00fa29bbef7746cb432cd
SHA512a39d4607277a4eb742ae6f7a9cc63cd9218fda9a396392a0e67014c32f1f35627e2d0d5c4d1f069e4e94f739654579c5f0d8812cfccb64bf39325ee1d3f20d62
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memory/2668-131-0x0000000000000000-mapping.dmp
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memory/2672-130-0x0000000074C00000-0x00000000751B1000-memory.dmpFilesize
5.7MB
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memory/5012-133-0x0000000000000000-mapping.dmp
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memory/5012-134-0x0000000000400000-0x0000000000466000-memory.dmpFilesize
408KB
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memory/5012-136-0x0000000074C00000-0x00000000751B1000-memory.dmpFilesize
5.7MB