Analysis
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max time kernel
118s -
max time network
119s -
platform
windows7_x64 -
resource
win7-20231130-en -
resource tags
arch:x64arch:x86image:win7-20231130-enlocale:en-usos:windows7-x64system -
submitted
11-12-2023 14:19
Static task
static1
Behavioral task
behavioral1
Sample
Scan_0366926812023.exe
Resource
win7-20231130-en
Behavioral task
behavioral2
Sample
Scan_0366926812023.exe
Resource
win10v2004-20231130-en
General
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Target
Scan_0366926812023.exe
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Size
694KB
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MD5
964b7d4d87d7b3e0399164197d8d32f1
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SHA1
48128fb0758e9c9ae80f5c3d3f4a3a51798b3431
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SHA256
22fe993d3d069bbd257db91dd0bc76cffabc3a67ac535e0cadc7e58649f78f49
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SHA512
5d151b87eca87a148dd025a0c4e87ba02bd82842b04666bff7b7ce92fbd65fc17f597343adc5ea75439aaf15fbf50e72c586f44efab995b369dd9ae1e0ad07de
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SSDEEP
12288:w3IU8S6eUd62pBI/NlGlPm5ITCIRMfiEw53QL+W5RlnVS7ga6k5:OItSAd62pZlRXRMfGV0+W5C5
Malware Config
Extracted
agenttesla
Protocol: smtp- Host:
mail.wrklearning.com - Port:
587 - Username:
[email protected] - Password:
worke2300 - 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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Detect ZGRat V1 1 IoCs
resource yara_rule behavioral1/memory/2232-3-0x0000000000710000-0x0000000000728000-memory.dmp family_zgrat_v1 -
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-1-5-21-2185821622-4133679102-1697169727-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 Scan_0366926812023.exe Key opened \REGISTRY\USER\S-1-5-21-2185821622-4133679102-1697169727-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 Scan_0366926812023.exe Key opened \REGISTRY\USER\S-1-5-21-2185821622-4133679102-1697169727-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 Scan_0366926812023.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 2 api.ipify.org -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 2232 set thread context of 2624 2232 Scan_0366926812023.exe 32 -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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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 3 IoCs
pid Process 2624 Scan_0366926812023.exe 2624 Scan_0366926812023.exe 2344 powershell.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 2624 Scan_0366926812023.exe Token: SeDebugPrivilege 2344 powershell.exe -
Suspicious use of WriteProcessMemory 17 IoCs
description pid Process procid_target PID 2232 wrote to memory of 2344 2232 Scan_0366926812023.exe 28 PID 2232 wrote to memory of 2344 2232 Scan_0366926812023.exe 28 PID 2232 wrote to memory of 2344 2232 Scan_0366926812023.exe 28 PID 2232 wrote to memory of 2344 2232 Scan_0366926812023.exe 28 PID 2232 wrote to memory of 2096 2232 Scan_0366926812023.exe 30 PID 2232 wrote to memory of 2096 2232 Scan_0366926812023.exe 30 PID 2232 wrote to memory of 2096 2232 Scan_0366926812023.exe 30 PID 2232 wrote to memory of 2096 2232 Scan_0366926812023.exe 30 PID 2232 wrote to memory of 2624 2232 Scan_0366926812023.exe 32 PID 2232 wrote to memory of 2624 2232 Scan_0366926812023.exe 32 PID 2232 wrote to memory of 2624 2232 Scan_0366926812023.exe 32 PID 2232 wrote to memory of 2624 2232 Scan_0366926812023.exe 32 PID 2232 wrote to memory of 2624 2232 Scan_0366926812023.exe 32 PID 2232 wrote to memory of 2624 2232 Scan_0366926812023.exe 32 PID 2232 wrote to memory of 2624 2232 Scan_0366926812023.exe 32 PID 2232 wrote to memory of 2624 2232 Scan_0366926812023.exe 32 PID 2232 wrote to memory of 2624 2232 Scan_0366926812023.exe 32 -
outlook_office_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-2185821622-4133679102-1697169727-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 Scan_0366926812023.exe -
outlook_win_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-2185821622-4133679102-1697169727-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 Scan_0366926812023.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\Scan_0366926812023.exe"C:\Users\Admin\AppData\Local\Temp\Scan_0366926812023.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2232 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\FQlHsVTvVqkAaa.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2344
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C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\FQlHsVTvVqkAaa" /XML "C:\Users\Admin\AppData\Local\Temp\tmp44FC.tmp"2⤵
- Creates scheduled task(s)
PID:2096
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C:\Users\Admin\AppData\Local\Temp\Scan_0366926812023.exe"C:\Users\Admin\AppData\Local\Temp\Scan_0366926812023.exe"2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
PID:2624
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
1KB
MD5100f497ea233df9fb26c73420b85f446
SHA161e502ad71ed7b16255bf8640d3e524d23aed561
SHA256f9a8369b333809dc7f78c0d21f2ebe3ef86da73e4d4d18f9fa88bceefd47e549
SHA5128d68fc2ea10c53d3c4e385f6d641ab47dc69304c621f99fcd403bc82f88fbc14e36f1326059e5481fa1d97bf12bb873745ad9e212ec11721f343dfb0c4bbbbf9