Analysis
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max time kernel
147s -
max time network
159s -
platform
windows10-2004_x64 -
resource
win10v2004-20220414-en -
submitted
21-05-2022 02:50
General
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Target
未付发票付款(Outstanding invoice payments).exe
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Size
668KB
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MD5
76a16bed1a858e75f1ef97d567013ada
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SHA1
935ff6bb1dd762b33036bef5907891ababbf769f
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SHA256
743cd5b161539860d7779adcc10b393ebb812c8c201b98c974b43ff1f404c34d
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SHA512
0b4627c8c45b65f2d3ac81947c98f30e84a322a719bf7405d345a5c247bad35b1cfcc6bbdfb252560987546dcc5a8390198e1bcfaa0efc9a53e8704deb126833
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 8 IoCs
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Suspicious use of AdjustPrivilegeToken 2 IoCs
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Suspicious use of WriteProcessMemory 14 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(Outstanding invoice payments).exe"C:\Users\Admin\AppData\Local\Temp\未付发票付款(Outstanding invoice payments).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\oSFTHqCzIjydoa" /XML "C:\Users\Admin\AppData\Local\Temp\tmpD254.tmp"2⤵
- Creates scheduled task(s)
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C:\Users\Admin\AppData\Local\Temp\未付发票付款(Outstanding invoice payments).exe"{path}"2⤵
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C:\Users\Admin\AppData\Local\Temp\未付发票付款(Outstanding invoice payments).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\tmpD254.tmpFilesize
1KB
MD5cdadeef27154a6949649dc2a266dfcb6
SHA1c5e010413acc1b203509390793bc3ab5d82da400
SHA256a5e90548e26d4758843b1f5e45d986181d71c02127359575615ae535deb660fb
SHA512ea840b9ed242f4b0112842f01dba002026429b503b3592160b83190d5cca451effb65e2115b392b6c1d2a5015ee15e42d3dcf0f37a16ea0220c2c7b44e4c6572
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memory/2192-137-0x0000000000000000-mapping.dmp
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memory/2192-138-0x0000000000400000-0x0000000000466000-memory.dmpFilesize
408KB
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memory/2192-139-0x0000000005880000-0x0000000005E24000-memory.dmpFilesize
5.6MB
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memory/2192-140-0x0000000006B70000-0x0000000006BC0000-memory.dmpFilesize
320KB
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memory/2192-141-0x0000000006C30000-0x0000000006C3A000-memory.dmpFilesize
40KB
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memory/2468-130-0x00000000000B0000-0x000000000015E000-memory.dmpFilesize
696KB
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memory/2468-131-0x0000000005160000-0x00000000051F2000-memory.dmpFilesize
584KB
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memory/2468-132-0x0000000005CC0000-0x0000000005D5C000-memory.dmpFilesize
624KB
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memory/2468-133-0x0000000005D60000-0x0000000005DC6000-memory.dmpFilesize
408KB
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memory/4484-134-0x0000000000000000-mapping.dmp
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memory/5100-136-0x0000000000000000-mapping.dmp