Analysis
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max time kernel
168s -
max time network
187s -
platform
windows10-2004_x64 -
resource
win10v2004-20220414-en -
submitted
21-05-2022 03:04
Static task
static1
Behavioral task
behavioral1
Sample
Terms & Conditions.pdf (2).exe
Resource
win7-20220414-en
0 signatures
0 seconds
General
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Target
Terms & Conditions.pdf (2).exe
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Size
446KB
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MD5
6bdd9c15243bd5b8709b87b7ba10b3a9
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SHA1
780f690b92f29296254f00b9f1958c2359991ad2
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SHA256
2580575e95648d76aed0be387fbe6423ef72639b8aaa9e1ad84ebc5b74bcf7b5
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SHA512
46a0f1f8a1c6d6cfbea8c287cd9f06fb44e987f8c452a2e5f99da852d871de1552a25eb7d79c794c817e16c7917d3e39383046173699c1fcc07f53dec0ec5cdd
Malware Config
Extracted
Family
agenttesla
Credentials
Protocol: smtp- Host:
mail.hotel71.com.bd - Port:
587 - Username:
[email protected] - Password:
9+^va&phP1v9
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
Processes:
resource yara_rule behavioral2/memory/4600-136-0x0000000000400000-0x0000000000450000-memory.dmp family_agenttesla -
Disables Task Manager via registry modification
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Drops file in Drivers directory 1 IoCs
Processes:
RegSvcs.exedescription ioc process File opened for modification C:\Windows\system32\drivers\etc\hosts RegSvcs.exe -
Suspicious use of SetThreadContext 1 IoCs
Processes:
Terms & Conditions.pdf (2).exedescription pid process target process PID 5012 set thread context of 4600 5012 Terms & Conditions.pdf (2).exe RegSvcs.exe -
Program crash 1 IoCs
Processes:
WerFault.exepid pid_target process target process 1912 4600 WerFault.exe RegSvcs.exe -
Modifies registry key 1 TTPs 1 IoCs
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Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
RegSvcs.exepid process 4600 RegSvcs.exe 4600 RegSvcs.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
RegSvcs.exedescription pid process Token: SeDebugPrivilege 4600 RegSvcs.exe -
Suspicious use of WriteProcessMemory 11 IoCs
Processes:
Terms & Conditions.pdf (2).exeRegSvcs.exedescription pid process target process PID 5012 wrote to memory of 4600 5012 Terms & Conditions.pdf (2).exe RegSvcs.exe PID 5012 wrote to memory of 4600 5012 Terms & Conditions.pdf (2).exe RegSvcs.exe PID 5012 wrote to memory of 4600 5012 Terms & Conditions.pdf (2).exe RegSvcs.exe PID 5012 wrote to memory of 4600 5012 Terms & Conditions.pdf (2).exe RegSvcs.exe PID 5012 wrote to memory of 4600 5012 Terms & Conditions.pdf (2).exe RegSvcs.exe PID 5012 wrote to memory of 4600 5012 Terms & Conditions.pdf (2).exe RegSvcs.exe PID 5012 wrote to memory of 4600 5012 Terms & Conditions.pdf (2).exe RegSvcs.exe PID 5012 wrote to memory of 4600 5012 Terms & Conditions.pdf (2).exe RegSvcs.exe PID 4600 wrote to memory of 3092 4600 RegSvcs.exe REG.exe PID 4600 wrote to memory of 3092 4600 RegSvcs.exe REG.exe PID 4600 wrote to memory of 3092 4600 RegSvcs.exe REG.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\Terms & Conditions.pdf (2).exe"C:\Users\Admin\AppData\Local\Temp\Terms & Conditions.pdf (2).exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"{path}"2⤵
- Drops file in Drivers directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\REG.exeREG add HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\System /v DisableTaskMgr /t REG_DWORD /d 1 /f3⤵
- Modifies registry key
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 4600 -s 15523⤵
- Program crash
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 4600 -ip 46001⤵
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
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Downloads
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memory/3092-138-0x0000000000000000-mapping.dmp
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memory/4600-135-0x0000000000000000-mapping.dmp
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memory/4600-136-0x0000000000400000-0x0000000000450000-memory.dmpFilesize
320KB
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memory/4600-137-0x00000000061F0000-0x0000000006256000-memory.dmpFilesize
408KB
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memory/4600-139-0x0000000006A20000-0x0000000006A70000-memory.dmpFilesize
320KB
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memory/5012-130-0x00000000009B0000-0x0000000000A26000-memory.dmpFilesize
472KB
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memory/5012-131-0x0000000009E10000-0x000000000A3B4000-memory.dmpFilesize
5.6MB
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memory/5012-132-0x0000000005520000-0x00000000055B2000-memory.dmpFilesize
584KB
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memory/5012-133-0x0000000005490000-0x000000000549A000-memory.dmpFilesize
40KB
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memory/5012-134-0x0000000009D30000-0x0000000009DCC000-memory.dmpFilesize
624KB