Analysis
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max time kernel
128s -
max time network
218s -
platform
windows7_x64 -
resource
win7-20230831-en -
resource tags
arch:x64arch:x86image:win7-20230831-enlocale:en-usos:windows7-x64system -
submitted
11-10-2023 20:06
Static task
static1
Behavioral task
behavioral1
Sample
OHMS.exe
Resource
win7-20230831-en
Behavioral task
behavioral2
Sample
OHMS.exe
Resource
win10v2004-20230915-en
General
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Target
OHMS.exe
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Size
1.1MB
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MD5
04ea0da6b921494dd73f396ecfe1de5d
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SHA1
bb082c74dd2297472ee4855f5400610358a775ed
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SHA256
db5eb79f5123b64dee1703eca26c91c3e4caa69b4515293778962c54eaded05d
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SHA512
b853ce633f9f6796419324897ab80bc9236ed4ab8447a5d6d7cdb66ee9f0392207fab57c9ce804e01231fa2e8da7b0a20405b27ba026d985e16d4e71776646df
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SSDEEP
24576:lz2Vk+YQNRfO2w9aiXjvxNe0O0w8B63L+q1Kj1:laVNYCG2w8ibe07U3L+q
Malware Config
Extracted
Protocol: smtp- Host:
us2.smtp.mailhostbox.com - Port:
587 - Username:
[email protected] - Password:
kOOdr$f8
Extracted
agenttesla
Protocol: smtp- Host:
us2.smtp.mailhostbox.com - Port:
587 - Username:
[email protected] - Password:
kOOdr$f8
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
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-3750544865-3773649541-1858556521-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 OHMS.exe Key opened \REGISTRY\USER\S-1-5-21-3750544865-3773649541-1858556521-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 OHMS.exe Key opened \REGISTRY\USER\S-1-5-21-3750544865-3773649541-1858556521-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 OHMS.exe -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3750544865-3773649541-1858556521-1000\Software\Microsoft\Windows\CurrentVersion\Run\HSpMzoJ = "C:\\Users\\Admin\\AppData\\Roaming\\HSpMzoJ\\HSpMzoJ.exe" OHMS.exe -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 2736 set thread context of 2660 2736 OHMS.exe 29 -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 2660 OHMS.exe 2660 OHMS.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 2660 OHMS.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 2660 OHMS.exe -
Suspicious use of WriteProcessMemory 9 IoCs
description pid Process procid_target PID 2736 wrote to memory of 2660 2736 OHMS.exe 29 PID 2736 wrote to memory of 2660 2736 OHMS.exe 29 PID 2736 wrote to memory of 2660 2736 OHMS.exe 29 PID 2736 wrote to memory of 2660 2736 OHMS.exe 29 PID 2736 wrote to memory of 2660 2736 OHMS.exe 29 PID 2736 wrote to memory of 2660 2736 OHMS.exe 29 PID 2736 wrote to memory of 2660 2736 OHMS.exe 29 PID 2736 wrote to memory of 2660 2736 OHMS.exe 29 PID 2736 wrote to memory of 2660 2736 OHMS.exe 29 -
outlook_office_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-3750544865-3773649541-1858556521-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 OHMS.exe -
outlook_win_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-3750544865-3773649541-1858556521-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 OHMS.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\OHMS.exe"C:\Users\Admin\AppData\Local\Temp\OHMS.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2736 -
C:\Users\Admin\AppData\Local\Temp\OHMS.exe"C:\Users\Admin\AppData\Local\Temp\OHMS.exe"2⤵
- Accesses Microsoft Outlook profiles
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- outlook_office_path
- outlook_win_path
PID:2660
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
61KB
MD5f3441b8572aae8801c04f3060b550443
SHA14ef0a35436125d6821831ef36c28ffaf196cda15
SHA2566720349e7d82ee0a8e73920d3c2b7cb2912d9fcf2edb6fd98f2f12820158b0bf
SHA5125ba01ba421b50030e380ae6bbcd2f681f2a91947fe7fedb3c8e6b5f24dce9517abf57b1cf26cc6078d4bb53bde6fcfb2561591337c841f8f2cb121a3d71661b9