Analysis
- max time kernel
112s - max time network
117s - platform
windows7_x64 - resource
win7 - submitted
03/08/2020, 15:03
Static task
static1
0 signatures
0 seconds
Behavioral task
behavioral2
Sample
Invoice PI#54738 - Packing list [email protected]
Resource
win10v200722
0 signatures
0 seconds
General
- Target Invoice PI#54738 - Packing list [email protected]
- Size 774KB
- Sample200803-se1crbcmes
- SHA256 a3ceedffc1e4f81695df3b06af7a12059d534af798313e27d010dd2116e1a2fa
- MD5 9aba15db1931313eba732add50ab9819
- SHA1 f3851f58e602d4a024ae16a4ca584fae8e22ecda
- SHA512 66a7fbc345134811fc7cd50c9bb783f3165293bab18a0b4dc14e3d368b8c9b4e3249bf2e02b780b0bf4f6968cf9344044bee7abab3b7b3409bb11b0f26126cbd
- MD5 SHA1 SHA512
Score
10/10
Malware Config
Extracted
Family
-
agenttesla
Credentials
-
Protocol
smtp
-
Host
smtp.yandex.com
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Port
587
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Username
-
Password
Sages101*
Signatures
- AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
- AgentTesla Payload 4 IoCs
resource yara_rule behavioral1/memory/1076-3-0x0000000000400000-0x000000000044C000-memory.dmp family_agenttesla behavioral1/memory/1076-4-0x0000000000446F2E-mapping.dmp family_agenttesla behavioral1/memory/1076-5-0x0000000000400000-0x000000000044C000-memory.dmp family_agenttesla behavioral1/memory/1076-6-0x0000000000400000-0x000000000044C000-memory.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.
- Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 2040 set thread context of 1076 2040 Invoice PI#54738 - Packing list [email protected] 26 - 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 1612 schtasks.exe - Suspicious behavior: EnumeratesProcesses 7 IoCs
pid Process 2040 Invoice PI#54738 - Packing list [email protected] 2040 Invoice PI#54738 - Packing list [email protected] 2040 Invoice PI#54738 - Packing list [email protected] 2040 Invoice PI#54738 - Packing list [email protected] 2040 Invoice PI#54738 - Packing list [email protected] 1076 Invoice PI#54738 - Packing list [email protected] 1076 Invoice PI#54738 - Packing list [email protected] - Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 2040 Invoice PI#54738 - Packing list [email protected] Token: SeDebugPrivilege 1076 Invoice PI#54738 - Packing list [email protected] - Suspicious use of WriteProcessMemory 13 IoCs
description pid Process procid_target PID 2040 wrote to memory of 1612 2040 Invoice PI#54738 - Packing list [email protected] 24 PID 2040 wrote to memory of 1612 2040 Invoice PI#54738 - Packing list [email protected] 24 PID 2040 wrote to memory of 1612 2040 Invoice PI#54738 - Packing list [email protected] 24 PID 2040 wrote to memory of 1612 2040 Invoice PI#54738 - Packing list [email protected] 24 PID 2040 wrote to memory of 1076 2040 Invoice PI#54738 - Packing list [email protected] 26 PID 2040 wrote to memory of 1076 2040 Invoice PI#54738 - Packing list [email protected] 26 PID 2040 wrote to memory of 1076 2040 Invoice PI#54738 - Packing list [email protected] 26 PID 2040 wrote to memory of 1076 2040 Invoice PI#54738 - Packing list [email protected] 26 PID 2040 wrote to memory of 1076 2040 Invoice PI#54738 - Packing list [email protected] 26 PID 2040 wrote to memory of 1076 2040 Invoice PI#54738 - Packing list [email protected] 26 PID 2040 wrote to memory of 1076 2040 Invoice PI#54738 - Packing list [email protected] 26 PID 2040 wrote to memory of 1076 2040 Invoice PI#54738 - Packing list [email protected] 26 PID 2040 wrote to memory of 1076 2040 Invoice PI#54738 - Packing list [email protected] 26
Processes
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C:\Users\Admin\AppData\Local\Temp\Invoice PI#54738 - Packing list [email protected]"C:\Users\Admin\AppData\Local\Temp\Invoice PI#54738 - Packing list [email protected]"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2040 -
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\&startupname&" /XML "C:\Users\Admin\AppData\Local\Temp\tmpD44E.tmp"2⤵
- Creates scheduled task(s)
PID:1612
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C:\Users\Admin\AppData\Local\Temp\Invoice PI#54738 - Packing list [email protected]"{path}"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1076
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