Analysis
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max time kernel
116s -
max time network
154s -
platform
windows10-2004_x64 -
resource
win10v2004-20220414-en -
submitted
20-05-2022 22:37
General
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Target
Quotation TT202008002,pdf.exe
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Size
836KB
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MD5
5a31407b199329baf9f3cc86c7bb443e
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SHA1
4be1093ddefcc1dec0d9c9f92f8d94c333456288
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SHA256
04bc203b9c68d45a74189f7a7bc180fe4fe0304583fae10dee4b036a66e54437
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SHA512
1576b4c5a962bed8fffd04b26c783982f0552dbd6cdb6e57d1d52655d9ea4055965c9ec93417ed797fca9a4c63f6b26bd19e1011780dd8c02ced1270716c81c4
Malware Config
Extracted
Protocol: smtp- Host:
smtp.1and1.mx - Port:
587 - Username:
[email protected] - Password:
Mare1##007
Extracted
agenttesla
Protocol: smtp- Host:
smtp.1and1.mx - Port:
587 - Username:
[email protected] - Password:
Mare1##007
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 4 IoCs
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Suspicious use of AdjustPrivilegeToken 2 IoCs
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Suspicious use of SetWindowsHookEx 1 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\Quotation TT202008002,pdf.exe"C:\Users\Admin\AppData\Local\Temp\Quotation TT202008002,pdf.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\BjYygepcqwSr" /XML "C:\Users\Admin\AppData\Local\Temp\tmp5678.tmp"2⤵
- Creates scheduled task(s)
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C:\Users\Admin\AppData\Local\Temp\Quotation TT202008002,pdf.exe"C:\Users\Admin\AppData\Local\Temp\Quotation TT202008002,pdf.exe"2⤵
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C:\Users\Admin\AppData\Local\Temp\Quotation TT202008002,pdf.exe"C:\Users\Admin\AppData\Local\Temp\Quotation TT202008002,pdf.exe"2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- 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_v4.0_32\UsageLogs\Quotation TT202008002,pdf.exe.logFilesize
1KB
MD55200da2e50f24d5d543c3f10674acdcb
SHA1b574a3336839882d799c0a7f635ea238efb934ee
SHA256d2d81c1c9d35bc66149beaa77029bee68664d8512fc1efe373180bab77d61026
SHA51224722a7de3250a6027a411c8b79d0720554c4efd59553f54b94ab77dc21efbf3191e0912901db475f08a6e9c1855d9e9594504d80d27300097418f4384a9d9cb
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C:\Users\Admin\AppData\Local\Temp\tmp5678.tmpFilesize
1KB
MD5d4e452512c0608266edc1fcf83debf19
SHA161abf44da2f266e72e482efe5d62e4c47403d429
SHA256855222373404c6a45f48d3ff515391e7f1c50ac585b8743a461f457599f38382
SHA5122d841908e0537416363866b6c4edda53fb42f67014d6ea2622f4721cc38d8fb2c9df915ede5f6aff48f85bacade567701d852233a2fe54d66fd0f078b7532ae9
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memory/2792-137-0x0000000000000000-mapping.dmp
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memory/3664-139-0x0000000000000000-mapping.dmp
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memory/4264-133-0x0000000005B70000-0x0000000005C02000-memory.dmpFilesize
584KB
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memory/4264-135-0x0000000005C10000-0x0000000005C66000-memory.dmpFilesize
344KB
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memory/4264-136-0x00000000068B0000-0x0000000006916000-memory.dmpFilesize
408KB
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memory/4264-134-0x00000000059F0000-0x00000000059FA000-memory.dmpFilesize
40KB
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memory/4264-130-0x0000000000F90000-0x0000000001066000-memory.dmpFilesize
856KB
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memory/4264-132-0x0000000006120000-0x00000000066C4000-memory.dmpFilesize
5.6MB
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memory/4264-131-0x0000000005A30000-0x0000000005ACC000-memory.dmpFilesize
624KB
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memory/4356-140-0x0000000000000000-mapping.dmp
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memory/4356-141-0x0000000000400000-0x0000000000466000-memory.dmpFilesize
408KB
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memory/4356-143-0x00000000068A0000-0x00000000068F0000-memory.dmpFilesize
320KB