Analysis
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max time kernel
143s -
max time network
146s -
platform
windows10-2004_x64 -
resource
win10v2004-20231127-en -
resource tags
arch:x64arch:x86image:win10v2004-20231127-enlocale:en-usos:windows10-2004-x64system -
submitted
08-12-2023 08:06
Static task
static1
Behavioral task
behavioral1
Sample
TRNX9876567DLH899897.PDF.exe
Resource
win7-20231201-en
Behavioral task
behavioral2
Sample
TRNX9876567DLH899897.PDF.exe
Resource
win10v2004-20231127-en
General
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Target
TRNX9876567DLH899897.PDF.exe
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Size
348KB
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MD5
90b961fc91f7e87eb700739696ff4f59
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SHA1
6fc31b4ddd8e0e821f1d318d85dbba1362f03b8d
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SHA256
ba3c127de1b583cf249240a34f154ed90368289c4b3ad1944e760ab02a94b068
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SHA512
5298959ff111f323935e934bf127aee75d9428326d95c24a9619a0bd347f989cd263bc391e9a209b441142456ec265d69ea9d663356f115e4e0b763569a6a340
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SSDEEP
6144:SsNyAueerw7hiET4bLOW2sTdlzLK1Wrtwztw3WLmBWskAZcr5pRyvzsZVDKy:SsNyNeUTEToLOW2sTdlz+10whqB5Hqrk
Malware Config
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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Adds Run key to start application 2 TTPs 1 IoCs
Processes:
TRNX9876567DLH899897.PDF.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-2598572287-1024438387-935107970-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\nsFeFj = "C:\\Users\\Admin\\AppData\\Roaming\\nsFeFj\\nsFeFj.exe" TRNX9876567DLH899897.PDF.exe -
Looks up external IP address via web service 1 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
Processes:
flow ioc 36 api.ipify.org -
Suspicious use of SetThreadContext 1 IoCs
Processes:
TRNX9876567DLH899897.PDF.exedescription pid process target process PID 4376 set thread context of 2776 4376 TRNX9876567DLH899897.PDF.exe TRNX9876567DLH899897.PDF.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
TRNX9876567DLH899897.PDF.exepid process 2776 TRNX9876567DLH899897.PDF.exe 2776 TRNX9876567DLH899897.PDF.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
TRNX9876567DLH899897.PDF.exedescription pid process Token: SeDebugPrivilege 2776 TRNX9876567DLH899897.PDF.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
Processes:
TRNX9876567DLH899897.PDF.exepid process 2776 TRNX9876567DLH899897.PDF.exe -
Suspicious use of WriteProcessMemory 8 IoCs
Processes:
TRNX9876567DLH899897.PDF.exedescription pid process target process PID 4376 wrote to memory of 2776 4376 TRNX9876567DLH899897.PDF.exe TRNX9876567DLH899897.PDF.exe PID 4376 wrote to memory of 2776 4376 TRNX9876567DLH899897.PDF.exe TRNX9876567DLH899897.PDF.exe PID 4376 wrote to memory of 2776 4376 TRNX9876567DLH899897.PDF.exe TRNX9876567DLH899897.PDF.exe PID 4376 wrote to memory of 2776 4376 TRNX9876567DLH899897.PDF.exe TRNX9876567DLH899897.PDF.exe PID 4376 wrote to memory of 2776 4376 TRNX9876567DLH899897.PDF.exe TRNX9876567DLH899897.PDF.exe PID 4376 wrote to memory of 2776 4376 TRNX9876567DLH899897.PDF.exe TRNX9876567DLH899897.PDF.exe PID 4376 wrote to memory of 2776 4376 TRNX9876567DLH899897.PDF.exe TRNX9876567DLH899897.PDF.exe PID 4376 wrote to memory of 2776 4376 TRNX9876567DLH899897.PDF.exe TRNX9876567DLH899897.PDF.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\TRNX9876567DLH899897.PDF.exe"C:\Users\Admin\AppData\Local\Temp\TRNX9876567DLH899897.PDF.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4376 -
C:\Users\Admin\AppData\Local\Temp\TRNX9876567DLH899897.PDF.exe"C:\Users\Admin\AppData\Local\Temp\TRNX9876567DLH899897.PDF.exe"2⤵
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:2776