Analysis
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max time kernel
55s -
max time network
151s -
platform
windows7_x64 -
resource
win7-20230220-en -
resource tags
arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system -
submitted
30-03-2023 11:17
Static task
static1
Behavioral task
behavioral1
Sample
$57,000.00.exe
Resource
win7-20230220-en
Behavioral task
behavioral2
Sample
$57,000.00.exe
Resource
win10v2004-20230221-en
General
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Target
$57,000.00.exe
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Size
709KB
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MD5
bf7e3ea1bbaba155ce9079dc9e959501
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SHA1
be73007a9ea47dcd70ad4c17f239a78c709829d8
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SHA256
8107f9ab5c5030afbbbebfd98280556cc08697cffa66d45548c5e012209d9184
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SHA512
ee89bdfd7557ef43f705c5a14e01bbbda3cac74d3ef14361cb4ebe9b45afc22be2e437acc68886abb92fcad8e9145f205956f7c23c348a625f79e28b9ad600c4
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SSDEEP
12288:hxBZWR942mwMHGtGeIn+ihCMGkU0yywVn3:h1WR9lptrNKCMGIwV3
Malware Config
Extracted
agenttesla
Protocol: smtp- Host:
mail.southernboilers.org - Port:
587 - Username:
[email protected] - Password:
Sksmoke2018# - Email To:
[email protected]
Signatures
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AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
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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
Processes:
$57,000.00.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-3430344531-3702557399-3004411149-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 $57,000.00.exe Key opened \REGISTRY\USER\S-1-5-21-3430344531-3702557399-3004411149-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 $57,000.00.exe Key opened \REGISTRY\USER\S-1-5-21-3430344531-3702557399-3004411149-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 $57,000.00.exe -
Looks up external IP address via web service 2 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
Processes:
flow ioc 4 api.ipify.org 5 api.ipify.org -
Suspicious use of SetThreadContext 1 IoCs
Processes:
$57,000.00.exedescription pid process target process PID 1712 set thread context of 1464 1712 $57,000.00.exe $57,000.00.exe -
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 1 IoCs
Processes:
$57,000.00.exepid process 1712 $57,000.00.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
Processes:
$57,000.00.exe$57,000.00.exedescription pid process Token: SeDebugPrivilege 1712 $57,000.00.exe Token: SeDebugPrivilege 1464 $57,000.00.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
Processes:
$57,000.00.exepid process 1464 $57,000.00.exe -
Suspicious use of WriteProcessMemory 13 IoCs
Processes:
$57,000.00.exedescription pid process target process PID 1712 wrote to memory of 1468 1712 $57,000.00.exe schtasks.exe PID 1712 wrote to memory of 1468 1712 $57,000.00.exe schtasks.exe PID 1712 wrote to memory of 1468 1712 $57,000.00.exe schtasks.exe PID 1712 wrote to memory of 1468 1712 $57,000.00.exe schtasks.exe PID 1712 wrote to memory of 1464 1712 $57,000.00.exe $57,000.00.exe PID 1712 wrote to memory of 1464 1712 $57,000.00.exe $57,000.00.exe PID 1712 wrote to memory of 1464 1712 $57,000.00.exe $57,000.00.exe PID 1712 wrote to memory of 1464 1712 $57,000.00.exe $57,000.00.exe PID 1712 wrote to memory of 1464 1712 $57,000.00.exe $57,000.00.exe PID 1712 wrote to memory of 1464 1712 $57,000.00.exe $57,000.00.exe PID 1712 wrote to memory of 1464 1712 $57,000.00.exe $57,000.00.exe PID 1712 wrote to memory of 1464 1712 $57,000.00.exe $57,000.00.exe PID 1712 wrote to memory of 1464 1712 $57,000.00.exe $57,000.00.exe -
outlook_office_path 1 IoCs
Processes:
$57,000.00.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-3430344531-3702557399-3004411149-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 $57,000.00.exe -
outlook_win_path 1 IoCs
Processes:
$57,000.00.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-3430344531-3702557399-3004411149-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 $57,000.00.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\$57,000.00.exe"C:\Users\Admin\AppData\Local\Temp\$57,000.00.exe"1⤵
- 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\FWTTsFZWRlQez" /XML "C:\Users\Admin\AppData\Local\Temp\tmp8CA7.tmp"2⤵
- Creates scheduled task(s)
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C:\Users\Admin\AppData\Local\Temp\$57,000.00.exe"{path}"2⤵
- Accesses Microsoft Outlook profiles
- 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\Temp\tmp8CA7.tmpFilesize
1KB
MD50c6c2613201aea0108807da745e8deb0
SHA19a2fd778bb1d4122e28eb234a7cc2baefe07655e
SHA256e3ff399445aae62d205a7b41fcfbad66b7f9081d0f1d240ef50928e6c8931b9c
SHA5127663d4473aff119a95da940fb2f15c3a2d39b5f256f08529d3ba6416e363413238752152b6f656e9b65995c08ffec811fca918ef5088636ddfdaf06007ed8122
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memory/1464-68-0x0000000000400000-0x0000000000430000-memory.dmpFilesize
192KB
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memory/1464-63-0x0000000000400000-0x0000000000430000-memory.dmpFilesize
192KB
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memory/1464-91-0x0000000004CB0000-0x0000000004CF0000-memory.dmpFilesize
256KB
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memory/1464-73-0x0000000004CB0000-0x0000000004CF0000-memory.dmpFilesize
256KB
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memory/1464-65-0x0000000000400000-0x0000000000430000-memory.dmpFilesize
192KB
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memory/1464-72-0x0000000000400000-0x0000000000430000-memory.dmpFilesize
192KB
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memory/1464-70-0x0000000000400000-0x0000000000430000-memory.dmpFilesize
192KB
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memory/1464-64-0x0000000000400000-0x0000000000430000-memory.dmpFilesize
192KB
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memory/1464-67-0x000000007EFDE000-0x000000007EFDF000-memory.dmpFilesize
4KB
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memory/1464-66-0x0000000000400000-0x0000000000430000-memory.dmpFilesize
192KB
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memory/1712-59-0x0000000000720000-0x0000000000750000-memory.dmpFilesize
192KB
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memory/1712-54-0x0000000000170000-0x0000000000228000-memory.dmpFilesize
736KB
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memory/1712-56-0x0000000000350000-0x000000000035C000-memory.dmpFilesize
48KB
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memory/1712-55-0x0000000002050000-0x0000000002090000-memory.dmpFilesize
256KB
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memory/1712-58-0x00000000043E0000-0x000000000445C000-memory.dmpFilesize
496KB
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memory/1712-57-0x0000000002050000-0x0000000002090000-memory.dmpFilesize
256KB