Analysis
- max time kernel
150s - max time network
10s - platform
windows7_x64 - resource
win7v20201028 - submitted
09/11/2020, 19:59
Static task
static1
Behavioral task
behavioral1
Sample
qoutation Order No. 48000073625.exe
Resource
win7v20201028
Behavioral task
behavioral2
Sample
qoutation Order No. 48000073625.exe
Resource
win10v20201028
General
- Target qoutation Order No. 48000073625.exe
- Size 384KB
- Sample201109-dssn1adafe
- SHA256 e02b179d4cdf7015ba349281645c8afd952888bc7ef00a7debcb4ad2b16077df
- MD5 6899207cc91962db30060a45971e9497
- SHA1 834c31a7c3821a502a1cdcc6315a15a4ffa0e921
- SHA512 bcd1e69a1d9070262d0123817aab32658612c02cf7676af4d59db00cbf74f699f775530b2ba222a9d7662dc39cb18c1806e63d488d94912ea2207551f277a419
- MD5 SHA1 SHA512
Malware Config
Extracted
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agenttesla
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Protocol
smtp
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Host
smtp.bnb-spa.com
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Port
587
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Username
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Password
tPo!47:glt$E
Signatures
- AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
- AgentTesla Payload 4 IoCs
resource yara_rule behavioral1/memory/1724-2-0x0000000000400000-0x0000000000450000-memory.dmp family_agenttesla behavioral1/memory/1724-5-0x0000000000400000-0x0000000000450000-memory.dmp family_agenttesla behavioral1/memory/1724-4-0x0000000000400000-0x0000000000450000-memory.dmp family_agenttesla behavioral1/memory/1724-3-0x000000000044AC1E-mapping.dmp family_agenttesla - Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
- Reads user/profile data of local email clients 2 TTPs
Email clients store some user data on disk where infostealers will often target it.
- Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
- Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Windows\CurrentVersion\Run\Mymp4 = "C:\\Users\\Admin\\AppData\\Roaming\\Mymp4\\Mymp4.exe" qoutation Order No. 48000073625.exe - Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 1732 set thread context of 1724 1732 qoutation Order No. 48000073625.exe 29 - Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
- Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 1200 schtasks.exe - Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 1724 qoutation Order No. 48000073625.exe 1724 qoutation Order No. 48000073625.exe - Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 1724 qoutation Order No. 48000073625.exe - Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 1724 qoutation Order No. 48000073625.exe - Suspicious use of WriteProcessMemory 13 IoCs
description pid Process procid_target PID 1732 wrote to memory of 1200 1732 qoutation Order No. 48000073625.exe 26 PID 1732 wrote to memory of 1200 1732 qoutation Order No. 48000073625.exe 26 PID 1732 wrote to memory of 1200 1732 qoutation Order No. 48000073625.exe 26 PID 1732 wrote to memory of 1200 1732 qoutation Order No. 48000073625.exe 26 PID 1732 wrote to memory of 1724 1732 qoutation Order No. 48000073625.exe 29 PID 1732 wrote to memory of 1724 1732 qoutation Order No. 48000073625.exe 29 PID 1732 wrote to memory of 1724 1732 qoutation Order No. 48000073625.exe 29 PID 1732 wrote to memory of 1724 1732 qoutation Order No. 48000073625.exe 29 PID 1732 wrote to memory of 1724 1732 qoutation Order No. 48000073625.exe 29 PID 1732 wrote to memory of 1724 1732 qoutation Order No. 48000073625.exe 29 PID 1732 wrote to memory of 1724 1732 qoutation Order No. 48000073625.exe 29 PID 1732 wrote to memory of 1724 1732 qoutation Order No. 48000073625.exe 29 PID 1732 wrote to memory of 1724 1732 qoutation Order No. 48000073625.exe 29
Processes
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C:\Users\Admin\AppData\Local\Temp\qoutation Order No. 48000073625.exe"C:\Users\Admin\AppData\Local\Temp\qoutation Order No. 48000073625.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1732 -
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\znUfYTbE" /XML "C:\Users\Admin\AppData\Local\Temp\tmp16CB.tmp"2⤵
- Creates scheduled task(s)
PID:1200
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C:\Users\Admin\AppData\Local\Temp\qoutation Order No. 48000073625.exe"C:\Users\Admin\AppData\Local\Temp\qoutation Order No. 48000073625.exe"2⤵
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:1724
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