Analysis
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max time kernel
149s -
max time network
150s -
platform
windows10-2004_x64 -
resource
win10v2004-20250217-en -
resource tags
arch:x64arch:x86image:win10v2004-20250217-enlocale:en-usos:windows10-2004-x64system -
submitted
08/03/2025, 11:18
Static task
static1
Behavioral task
behavioral1
Sample
91107f4a383ddb76d6fd153077d57c528551ace7385fb10db1bb3e46c3603b62.exe
Resource
win7-20240903-en
General
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Target
91107f4a383ddb76d6fd153077d57c528551ace7385fb10db1bb3e46c3603b62.exe
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Size
780KB
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MD5
0c93904abb61aaf75ef8f7210de308e6
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SHA1
3eae214dd0cd6051d9dca98392c07085f171f2a7
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SHA256
91107f4a383ddb76d6fd153077d57c528551ace7385fb10db1bb3e46c3603b62
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SHA512
c9c6de347b26c1b76e50cd3c500d1e7f020810562b6eb257f7160efe8fed4b95d4f664f94f0ec1fe6e12640473098008b6d4d1fbf2a4b5ba05e5f62b20539db7
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SSDEEP
12288:J2tgXH3sduObXsHylkxlOG6+iJN+CeS9hs7hh8Txf5NTh3ZUaeso9JTaP5lREAmD:gtTClOG6pf33rehWNt3mJ/S
Malware Config
Extracted
Protocol: smtp- Host:
mail.vanithafireworks.com - Port:
587 - Username:
[email protected] - Password:
Vonline@2021
Signatures
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Hawkeye family
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Detected Nirsoft tools 7 IoCs
Free utilities often used by attackers which can steal passwords, product keys, etc.
resource yara_rule behavioral2/memory/1600-6-0x0000000000400000-0x0000000000498000-memory.dmp Nirsoft behavioral2/memory/1672-40-0x0000000000400000-0x000000000041B000-memory.dmp Nirsoft behavioral2/memory/1672-42-0x0000000000400000-0x000000000041B000-memory.dmp Nirsoft behavioral2/memory/1672-41-0x0000000000400000-0x000000000041B000-memory.dmp Nirsoft behavioral2/memory/4884-45-0x0000000000400000-0x0000000000458000-memory.dmp Nirsoft behavioral2/memory/4884-46-0x0000000000400000-0x0000000000458000-memory.dmp Nirsoft behavioral2/memory/4884-53-0x0000000000400000-0x0000000000458000-memory.dmp Nirsoft -
NirSoft MailPassView 4 IoCs
Password recovery tool for various email clients
resource yara_rule behavioral2/memory/1600-6-0x0000000000400000-0x0000000000498000-memory.dmp MailPassView behavioral2/memory/1672-40-0x0000000000400000-0x000000000041B000-memory.dmp MailPassView behavioral2/memory/1672-42-0x0000000000400000-0x000000000041B000-memory.dmp MailPassView behavioral2/memory/1672-41-0x0000000000400000-0x000000000041B000-memory.dmp MailPassView -
NirSoft WebBrowserPassView 4 IoCs
Password recovery tool for various web browsers
resource yara_rule behavioral2/memory/1600-6-0x0000000000400000-0x0000000000498000-memory.dmp WebBrowserPassView behavioral2/memory/4884-45-0x0000000000400000-0x0000000000458000-memory.dmp WebBrowserPassView behavioral2/memory/4884-46-0x0000000000400000-0x0000000000458000-memory.dmp WebBrowserPassView behavioral2/memory/4884-53-0x0000000000400000-0x0000000000458000-memory.dmp WebBrowserPassView -
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-1-5-21-3181990009-820930284-137514597-1000\Control Panel\International\Geo\Nation 91107f4a383ddb76d6fd153077d57c528551ace7385fb10db1bb3e46c3603b62.exe -
Executes dropped EXE 4 IoCs
pid Process 3040 Windows Update.exe 3380 Windows Update.exe 3464 Windows Update.exe 888 Windows Update.exe -
Uses the VBS compiler for execution 1 TTPs
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Accesses Microsoft Outlook accounts 1 TTPs 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-3181990009-820930284-137514597-1000\Software\Microsoft\Office\Outlook\OMI Account Manager\Accounts vbc.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 10 whatismyipaddress.com -
Suspicious use of SetThreadContext 4 IoCs
description pid Process procid_target PID 1972 set thread context of 1600 1972 91107f4a383ddb76d6fd153077d57c528551ace7385fb10db1bb3e46c3603b62.exe 88 PID 3040 set thread context of 888 3040 Windows Update.exe 93 PID 888 set thread context of 1672 888 Windows Update.exe 95 PID 888 set thread context of 4884 888 Windows Update.exe 96 -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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System Location Discovery: System Language Discovery 1 TTPs 6 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 91107f4a383ddb76d6fd153077d57c528551ace7385fb10db1bb3e46c3603b62.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language Windows Update.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language Windows Update.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language vbc.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language vbc.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 91107f4a383ddb76d6fd153077d57c528551ace7385fb10db1bb3e46c3603b62.exe -
Suspicious behavior: EnumeratesProcesses 7 IoCs
pid Process 3040 Windows Update.exe 3040 Windows Update.exe 3040 Windows Update.exe 3040 Windows Update.exe 4884 vbc.exe 4884 vbc.exe 888 Windows Update.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 3040 Windows Update.exe Token: SeDebugPrivilege 888 Windows Update.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 888 Windows Update.exe -
Suspicious use of WriteProcessMemory 43 IoCs
description pid Process procid_target PID 1972 wrote to memory of 1600 1972 91107f4a383ddb76d6fd153077d57c528551ace7385fb10db1bb3e46c3603b62.exe 88 PID 1972 wrote to memory of 1600 1972 91107f4a383ddb76d6fd153077d57c528551ace7385fb10db1bb3e46c3603b62.exe 88 PID 1972 wrote to memory of 1600 1972 91107f4a383ddb76d6fd153077d57c528551ace7385fb10db1bb3e46c3603b62.exe 88 PID 1972 wrote to memory of 1600 1972 91107f4a383ddb76d6fd153077d57c528551ace7385fb10db1bb3e46c3603b62.exe 88 PID 1972 wrote to memory of 1600 1972 91107f4a383ddb76d6fd153077d57c528551ace7385fb10db1bb3e46c3603b62.exe 88 PID 1972 wrote to memory of 1600 1972 91107f4a383ddb76d6fd153077d57c528551ace7385fb10db1bb3e46c3603b62.exe 88 PID 1972 wrote to memory of 1600 1972 91107f4a383ddb76d6fd153077d57c528551ace7385fb10db1bb3e46c3603b62.exe 88 PID 1972 wrote to memory of 1600 1972 91107f4a383ddb76d6fd153077d57c528551ace7385fb10db1bb3e46c3603b62.exe 88 PID 1600 wrote to memory of 3040 1600 91107f4a383ddb76d6fd153077d57c528551ace7385fb10db1bb3e46c3603b62.exe 90 PID 1600 wrote to memory of 3040 1600 91107f4a383ddb76d6fd153077d57c528551ace7385fb10db1bb3e46c3603b62.exe 90 PID 1600 wrote to memory of 3040 1600 91107f4a383ddb76d6fd153077d57c528551ace7385fb10db1bb3e46c3603b62.exe 90 PID 3040 wrote to memory of 3380 3040 Windows Update.exe 91 PID 3040 wrote to memory of 3380 3040 Windows Update.exe 91 PID 3040 wrote to memory of 3380 3040 Windows Update.exe 91 PID 3040 wrote to memory of 3464 3040 Windows Update.exe 92 PID 3040 wrote to memory of 3464 3040 Windows Update.exe 92 PID 3040 wrote to memory of 3464 3040 Windows Update.exe 92 PID 3040 wrote to memory of 888 3040 Windows Update.exe 93 PID 3040 wrote to memory of 888 3040 Windows Update.exe 93 PID 3040 wrote to memory of 888 3040 Windows Update.exe 93 PID 3040 wrote to memory of 888 3040 Windows Update.exe 93 PID 3040 wrote to memory of 888 3040 Windows Update.exe 93 PID 3040 wrote to memory of 888 3040 Windows Update.exe 93 PID 3040 wrote to memory of 888 3040 Windows Update.exe 93 PID 3040 wrote to memory of 888 3040 Windows Update.exe 93 PID 888 wrote to memory of 1672 888 Windows Update.exe 95 PID 888 wrote to memory of 1672 888 Windows Update.exe 95 PID 888 wrote to memory of 1672 888 Windows Update.exe 95 PID 888 wrote to memory of 1672 888 Windows Update.exe 95 PID 888 wrote to memory of 1672 888 Windows Update.exe 95 PID 888 wrote to memory of 1672 888 Windows Update.exe 95 PID 888 wrote to memory of 1672 888 Windows Update.exe 95 PID 888 wrote to memory of 1672 888 Windows Update.exe 95 PID 888 wrote to memory of 1672 888 Windows Update.exe 95 PID 888 wrote to memory of 4884 888 Windows Update.exe 96 PID 888 wrote to memory of 4884 888 Windows Update.exe 96 PID 888 wrote to memory of 4884 888 Windows Update.exe 96 PID 888 wrote to memory of 4884 888 Windows Update.exe 96 PID 888 wrote to memory of 4884 888 Windows Update.exe 96 PID 888 wrote to memory of 4884 888 Windows Update.exe 96 PID 888 wrote to memory of 4884 888 Windows Update.exe 96 PID 888 wrote to memory of 4884 888 Windows Update.exe 96 PID 888 wrote to memory of 4884 888 Windows Update.exe 96
Processes
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C:\Users\Admin\AppData\Local\Temp\91107f4a383ddb76d6fd153077d57c528551ace7385fb10db1bb3e46c3603b62.exe"C:\Users\Admin\AppData\Local\Temp\91107f4a383ddb76d6fd153077d57c528551ace7385fb10db1bb3e46c3603b62.exe"1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1972 -
C:\Users\Admin\AppData\Local\Temp\91107f4a383ddb76d6fd153077d57c528551ace7385fb10db1bb3e46c3603b62.exe"C:\Users\Admin\AppData\Local\Temp\91107f4a383ddb76d6fd153077d57c528551ace7385fb10db1bb3e46c3603b62.exe"2⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1600 -
C:\Users\Admin\AppData\Roaming\Windows Update.exe"C:\Users\Admin\AppData\Roaming\Windows Update.exe"3⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3040 -
C:\Users\Admin\AppData\Roaming\Windows Update.exe"C:\Users\Admin\AppData\Roaming\Windows Update.exe"4⤵
- Executes dropped EXE
PID:3380
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C:\Users\Admin\AppData\Roaming\Windows Update.exe"C:\Users\Admin\AppData\Roaming\Windows Update.exe"4⤵
- Executes dropped EXE
PID:3464
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C:\Users\Admin\AppData\Roaming\Windows Update.exe"C:\Users\Admin\AppData\Roaming\Windows Update.exe"4⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:888 -
C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exeC:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe /stext "C:\Users\Admin\AppData\Local\Temp\holdermail.txt"5⤵
- Accesses Microsoft Outlook accounts
- System Location Discovery: System Language Discovery
PID:1672
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C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exeC:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe /stext "C:\Users\Admin\AppData\Local\Temp\holderwb.txt"5⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
PID:4884
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
102B
MD527db52220c716650547fed0a1ce61aea
SHA181e89fc708de7f9770706fdebb8d505ed24d2c0c
SHA256eea951ba77a21622ac363280de82a406004ec6448534fbff7f1566121baef577
SHA512094a57d32a932c9656701049ad26c216ab4adbe77283c5e4938d9354acd97e9194c2a213aec14973eeeed26e40a09b8e9b5959b9704208894941100ca1eec2ec
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Filesize
3KB
MD5f94dc819ca773f1e3cb27abbc9e7fa27
SHA19a7700efadc5ea09ab288544ef1e3cd876255086
SHA256a3377ade83786c2bdff5db19ff4dbfd796da4312402b5e77c4c63e38cc6eff92
SHA51272a2c10d7a53a7f9a319dab66d77ed65639e9aa885b551e0055fc7eaf6ef33bbf109205b42ae11555a0f292563914bc6edb63b310c6f9bda9564095f77ab9196
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Filesize
780KB
MD50c93904abb61aaf75ef8f7210de308e6
SHA13eae214dd0cd6051d9dca98392c07085f171f2a7
SHA25691107f4a383ddb76d6fd153077d57c528551ace7385fb10db1bb3e46c3603b62
SHA512c9c6de347b26c1b76e50cd3c500d1e7f020810562b6eb257f7160efe8fed4b95d4f664f94f0ec1fe6e12640473098008b6d4d1fbf2a4b5ba05e5f62b20539db7