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Analysis
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max time kernel
134s -
max time network
137s -
platform
windows10-2004_x64 -
resource
win10v2004-20230220-en -
resource tags
arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system -
submitted
06/03/2023, 21:43
Static task
static1
Behavioral task
behavioral1
Sample
dac89be8aa934890907a63a2dfc1222a2718c81bec983c0da3a562c7724869b8.exe
Resource
win7-20230220-en
Behavioral task
behavioral2
Sample
dac89be8aa934890907a63a2dfc1222a2718c81bec983c0da3a562c7724869b8.exe
Resource
win10v2004-20230220-en
General
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Target
dac89be8aa934890907a63a2dfc1222a2718c81bec983c0da3a562c7724869b8.exe
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Size
761KB
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MD5
4ac6af41f618d75b7807a9cead475a79
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SHA1
a40310c7e6a24d74ee9b739fa457ece169066d07
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SHA256
dac89be8aa934890907a63a2dfc1222a2718c81bec983c0da3a562c7724869b8
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SHA512
08c1ca07e167509698b30ba5cfc17b34f5087c570b9aa138de6267550435006d2e2844051f4eb8f173135de5e96d2a95394df0a7483e05b74943dc47b14c75bc
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SSDEEP
12288:/zwlG1wFK2RWwXcPdit4kfFFXFGpaj4Jd++fd/qwvQ9qjd/rFPqFmwwzdDiC7v5q:LwlG1wF9WwXcPdit4kfFFXFGpaj4Jd+/
Malware Config
Extracted
agenttesla
Protocol: smtp- Host:
mail.rapidcheckng.com - Port:
587 - Username:
[email protected] - Password:
@Rapidcheckng# - 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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Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-2275444769-3691835758-4097679484-1000\Control Panel\International\Geo\Nation dac89be8aa934890907a63a2dfc1222a2718c81bec983c0da3a562c7724869b8.exe -
Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-2275444769-3691835758-4097679484-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 RegSvcs.exe Key opened \REGISTRY\USER\S-1-5-21-2275444769-3691835758-4097679484-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 RegSvcs.exe Key opened \REGISTRY\USER\S-1-5-21-2275444769-3691835758-4097679484-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 RegSvcs.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.
flow ioc 41 api.ipify.org 42 api.ipify.org -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 1272 set thread context of 4340 1272 dac89be8aa934890907a63a2dfc1222a2718c81bec983c0da3a562c7724869b8.exe 93 -
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.
pid Process 2096 schtasks.exe -
Suspicious behavior: EnumeratesProcesses 1 IoCs
pid Process 1272 dac89be8aa934890907a63a2dfc1222a2718c81bec983c0da3a562c7724869b8.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 1272 dac89be8aa934890907a63a2dfc1222a2718c81bec983c0da3a562c7724869b8.exe Token: SeDebugPrivilege 4340 RegSvcs.exe -
Suspicious use of WriteProcessMemory 11 IoCs
description pid Process procid_target PID 1272 wrote to memory of 2096 1272 dac89be8aa934890907a63a2dfc1222a2718c81bec983c0da3a562c7724869b8.exe 91 PID 1272 wrote to memory of 2096 1272 dac89be8aa934890907a63a2dfc1222a2718c81bec983c0da3a562c7724869b8.exe 91 PID 1272 wrote to memory of 2096 1272 dac89be8aa934890907a63a2dfc1222a2718c81bec983c0da3a562c7724869b8.exe 91 PID 1272 wrote to memory of 4340 1272 dac89be8aa934890907a63a2dfc1222a2718c81bec983c0da3a562c7724869b8.exe 93 PID 1272 wrote to memory of 4340 1272 dac89be8aa934890907a63a2dfc1222a2718c81bec983c0da3a562c7724869b8.exe 93 PID 1272 wrote to memory of 4340 1272 dac89be8aa934890907a63a2dfc1222a2718c81bec983c0da3a562c7724869b8.exe 93 PID 1272 wrote to memory of 4340 1272 dac89be8aa934890907a63a2dfc1222a2718c81bec983c0da3a562c7724869b8.exe 93 PID 1272 wrote to memory of 4340 1272 dac89be8aa934890907a63a2dfc1222a2718c81bec983c0da3a562c7724869b8.exe 93 PID 1272 wrote to memory of 4340 1272 dac89be8aa934890907a63a2dfc1222a2718c81bec983c0da3a562c7724869b8.exe 93 PID 1272 wrote to memory of 4340 1272 dac89be8aa934890907a63a2dfc1222a2718c81bec983c0da3a562c7724869b8.exe 93 PID 1272 wrote to memory of 4340 1272 dac89be8aa934890907a63a2dfc1222a2718c81bec983c0da3a562c7724869b8.exe 93 -
outlook_office_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-2275444769-3691835758-4097679484-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 RegSvcs.exe -
outlook_win_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-2275444769-3691835758-4097679484-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 RegSvcs.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\dac89be8aa934890907a63a2dfc1222a2718c81bec983c0da3a562c7724869b8.exe"C:\Users\Admin\AppData\Local\Temp\dac89be8aa934890907a63a2dfc1222a2718c81bec983c0da3a562c7724869b8.exe"1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1272 -
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\RQGrrRAQiiB" /XML "C:\Users\Admin\AppData\Local\Temp\tmpDB90.tmp"2⤵
- Creates scheduled task(s)
PID:2096
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"{path}"2⤵
- Accesses Microsoft Outlook profiles
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
PID:4340
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
1KB
MD5e0b8556375a7c96cf0aa85f681efd89f
SHA1c80315e068969646cd95ef4836e26dcd68aa22a4
SHA256c7d32ddcaad76b24211f4ce5a4107e3cd20eb844bf5a6fba821206a3b92d9769
SHA512562f275128d0a90d8f70b3edf1f36f1aebca613613b5c78fb77d01075a35e2199f0ebfab5214e51c139a3cdfea5ccb28c103885902ae8fa25a160556b1ae1709