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Analysis
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max time kernel
142s -
max time network
56s -
platform
windows10-2004_x64 -
resource
win10v2004-20240419-en -
resource tags
arch:x64arch:x86image:win10v2004-20240419-enlocale:en-usos:windows10-2004-x64system -
submitted
27/04/2024, 01:49
Behavioral task
behavioral1
Sample
ad7a7cf0976ddc45d980eedb9adb2c550f3c6956ac7bc045de97424fec0456a3.exe
Resource
win7-20240221-en
General
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Target
ad7a7cf0976ddc45d980eedb9adb2c550f3c6956ac7bc045de97424fec0456a3.exe
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Size
3.3MB
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MD5
fbe98ea777d83fcbdfd8f279d900f8fd
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SHA1
47aa24342edd409b4cb1a4f3b708f363ce66871a
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SHA256
ad7a7cf0976ddc45d980eedb9adb2c550f3c6956ac7bc045de97424fec0456a3
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SHA512
b8089e21ecd97a90fdbbd1cc090c6ae9c3d3204862bd324480bc77a3fb204d50c2730824553680942973647ef945571b0bcddec3db8419ee341a2e4561dcbc61
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SSDEEP
98304:TR/yT715TGTtRCdLorKYIthsKddy23M9J:F/KTGTtEh84zdDjMz
Malware Config
Extracted
agenttesla
Protocol: smtp- Host:
mail.grandanatoliahotel.com - Port:
587 - Username:
[email protected] - Password:
rruuggeedd12.Z - 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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Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 1 IoCs
description ioc Process Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ ad7a7cf0976ddc45d980eedb9adb2c550f3c6956ac7bc045de97424fec0456a3.exe -
Checks BIOS information in registry 2 TTPs 2 IoCs
BIOS information is often read in order to detect sandboxing environments.
description ioc Process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion ad7a7cf0976ddc45d980eedb9adb2c550f3c6956ac7bc045de97424fec0456a3.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion ad7a7cf0976ddc45d980eedb9adb2c550f3c6956ac7bc045de97424fec0456a3.exe -
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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resource yara_rule behavioral2/memory/3200-10-0x0000000000840000-0x0000000001138000-memory.dmp themida behavioral2/memory/3200-11-0x0000000000840000-0x0000000001138000-memory.dmp themida -
description ioc Process Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA ad7a7cf0976ddc45d980eedb9adb2c550f3c6956ac7bc045de97424fec0456a3.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.
flow ioc 3 ip-api.com -
Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
pid Process 3200 ad7a7cf0976ddc45d980eedb9adb2c550f3c6956ac7bc045de97424fec0456a3.exe -
Suspicious behavior: EnumeratesProcesses 4 IoCs
pid Process 3200 ad7a7cf0976ddc45d980eedb9adb2c550f3c6956ac7bc045de97424fec0456a3.exe 3200 ad7a7cf0976ddc45d980eedb9adb2c550f3c6956ac7bc045de97424fec0456a3.exe 3200 ad7a7cf0976ddc45d980eedb9adb2c550f3c6956ac7bc045de97424fec0456a3.exe 3200 ad7a7cf0976ddc45d980eedb9adb2c550f3c6956ac7bc045de97424fec0456a3.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 3200 ad7a7cf0976ddc45d980eedb9adb2c550f3c6956ac7bc045de97424fec0456a3.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 3200 ad7a7cf0976ddc45d980eedb9adb2c550f3c6956ac7bc045de97424fec0456a3.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\ad7a7cf0976ddc45d980eedb9adb2c550f3c6956ac7bc045de97424fec0456a3.exe"C:\Users\Admin\AppData\Local\Temp\ad7a7cf0976ddc45d980eedb9adb2c550f3c6956ac7bc045de97424fec0456a3.exe"1⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Checks whether UAC is enabled
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:3200