Windows 7 deprecation
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General
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Target
PO-020716-WA0002.pdf..exe
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Size
696KB
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Sample
240708-r29ynatfjq
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MD5
c51a9f02f48f2b02ecbbe5f330c211a4
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SHA1
394e84d7e16cf386f4b33bb2761cfb9beb13595a
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SHA256
636943f682f71370760679bd6afb382f5e0aacf31995624007c6541eddd62f53
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SHA512
085f8c471bfed18d83795cdc6acb44730c637a2b106188edda8cefbea9213923d638a107ec5052b426e0d14f2d8c7fd10f5c89c816ae5da29ca28fcf55eb46fb
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SSDEEP
12288:fY/SDzsiLGVTYEMaWrrdmZzaXRaHd/7g9JYms1PAo6:fY/SDDSfMhvgacd/qJYms1Yx
Static task
static1
Behavioral task
behavioral1
Sample
PO-020716-WA0002.pdf..exe
Resource
win7-20240220-en
Malware Config
Extracted
agenttesla
Protocol: smtp- Host:
smtp.brianberrills-ie.com - Port:
587 - Username:
[email protected] - Password:
k)(yecz3 - Email To:
[email protected]
Extracted
Protocol: smtp- Host:
smtp.brianberrills-ie.com - Port:
587 - Username:
[email protected] - Password:
k)(yecz3
Targets
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Target
PO-020716-WA0002.pdf..exe
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Size
696KB
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MD5
c51a9f02f48f2b02ecbbe5f330c211a4
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SHA1
394e84d7e16cf386f4b33bb2761cfb9beb13595a
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SHA256
636943f682f71370760679bd6afb382f5e0aacf31995624007c6541eddd62f53
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SHA512
085f8c471bfed18d83795cdc6acb44730c637a2b106188edda8cefbea9213923d638a107ec5052b426e0d14f2d8c7fd10f5c89c816ae5da29ca28fcf55eb46fb
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SSDEEP
12288:fY/SDzsiLGVTYEMaWrrdmZzaXRaHd/7g9JYms1PAo6:fY/SDDSfMhvgacd/qJYms1Yx
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AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
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Command and Scripting Interpreter: PowerShell
Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.
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Checks computer location settings
Looks up country code configured in the registry, likely geofence.
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Looks up external IP address via web service
Uses a legitimate IP lookup service to find the infected system's external IP.
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Suspicious use of SetThreadContext
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