Analysis
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max time kernel
82s -
max time network
127s -
platform
windows10-2004_x64 -
resource
win10v2004-20220718-en -
resource tags
arch:x64arch:x86image:win10v2004-20220718-enlocale:en-usos:windows10-2004-x64system -
submitted
19-07-2022 20:20
Static task
static1
Behavioral task
behavioral1
Sample
4fcf6a0b40b045b1ce5c37c912989ad0f8a26f5eb18dde467ab5565c09b90792.exe
Resource
win7-20220715-en
General
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Target
4fcf6a0b40b045b1ce5c37c912989ad0f8a26f5eb18dde467ab5565c09b90792.exe
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Size
970KB
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MD5
7368657baf850ecfd5d70e1f8e2a0fcd
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SHA1
70ec9d06ecd975708e1589da9900a75c8846e843
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SHA256
4fcf6a0b40b045b1ce5c37c912989ad0f8a26f5eb18dde467ab5565c09b90792
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SHA512
a54bf8e35f1209b4a6f22eccbda4ff95071791c870c7b5b88f7c511f66b4c3e2055ee9b6dfebe02154898e494244eb3614927a1144537b9e7d890915301ded8a
Malware Config
Extracted
Protocol: smtp- Host:
smtp.yandex.com - Port:
587 - Username:
[email protected] - Password:
alibaba1234
Signatures
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NirSoft MailPassView 6 IoCs
Password recovery tool for various email clients
resource yara_rule behavioral2/memory/5044-140-0x0000000006B10000-0x0000000006BA0000-memory.dmp MailPassView behavioral2/memory/1028-161-0x0000000006B30000-0x0000000006BC0000-memory.dmp MailPassView behavioral2/memory/3336-167-0x0000000000000000-mapping.dmp MailPassView behavioral2/memory/3336-168-0x0000000000400000-0x000000000041B000-memory.dmp MailPassView behavioral2/memory/3336-170-0x0000000000400000-0x000000000041B000-memory.dmp MailPassView behavioral2/memory/3336-171-0x0000000000400000-0x000000000041B000-memory.dmp MailPassView -
NirSoft WebBrowserPassView 7 IoCs
Password recovery tool for various web browsers
resource yara_rule behavioral2/memory/5044-140-0x0000000006B10000-0x0000000006BA0000-memory.dmp WebBrowserPassView behavioral2/memory/1028-161-0x0000000006B30000-0x0000000006BC0000-memory.dmp WebBrowserPassView behavioral2/memory/828-174-0x0000000000000000-mapping.dmp WebBrowserPassView behavioral2/memory/828-175-0x0000000000400000-0x0000000000458000-memory.dmp WebBrowserPassView behavioral2/memory/828-177-0x0000000000400000-0x0000000000458000-memory.dmp WebBrowserPassView behavioral2/memory/828-179-0x0000000000400000-0x0000000000458000-memory.dmp WebBrowserPassView behavioral2/memory/828-180-0x0000000000400000-0x0000000000458000-memory.dmp WebBrowserPassView -
Nirsoft 11 IoCs
resource yara_rule behavioral2/memory/5044-140-0x0000000006B10000-0x0000000006BA0000-memory.dmp Nirsoft behavioral2/memory/1028-161-0x0000000006B30000-0x0000000006BC0000-memory.dmp Nirsoft behavioral2/memory/3336-167-0x0000000000000000-mapping.dmp Nirsoft behavioral2/memory/3336-168-0x0000000000400000-0x000000000041B000-memory.dmp Nirsoft behavioral2/memory/3336-170-0x0000000000400000-0x000000000041B000-memory.dmp Nirsoft behavioral2/memory/3336-171-0x0000000000400000-0x000000000041B000-memory.dmp Nirsoft behavioral2/memory/828-174-0x0000000000000000-mapping.dmp Nirsoft behavioral2/memory/828-175-0x0000000000400000-0x0000000000458000-memory.dmp Nirsoft behavioral2/memory/828-177-0x0000000000400000-0x0000000000458000-memory.dmp Nirsoft behavioral2/memory/828-179-0x0000000000400000-0x0000000000458000-memory.dmp Nirsoft behavioral2/memory/828-180-0x0000000000400000-0x0000000000458000-memory.dmp Nirsoft -
Executes dropped EXE 2 IoCs
pid Process 3112 Windows Update.exe 1028 Windows Update.exe -
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-1-5-21-2783062828-828903012-4218294845-1000\Control Panel\International\Geo\Nation 4fcf6a0b40b045b1ce5c37c912989ad0f8a26f5eb18dde467ab5565c09b90792.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-1-5-21-2783062828-828903012-4218294845-1000\Software\Microsoft\Office\Outlook\OMI Account Manager\Accounts vbc.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 12 whatismyipaddress.com 14 whatismyipaddress.com -
Suspicious use of SetThreadContext 4 IoCs
description pid Process procid_target PID 4192 set thread context of 5044 4192 4fcf6a0b40b045b1ce5c37c912989ad0f8a26f5eb18dde467ab5565c09b90792.exe 79 PID 3112 set thread context of 1028 3112 Windows Update.exe 81 PID 1028 set thread context of 3336 1028 Windows Update.exe 82 PID 1028 set thread context of 828 1028 Windows Update.exe 83 -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 828 vbc.exe 828 vbc.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 1028 Windows Update.exe -
Suspicious use of SetWindowsHookEx 3 IoCs
pid Process 4192 4fcf6a0b40b045b1ce5c37c912989ad0f8a26f5eb18dde467ab5565c09b90792.exe 3112 Windows Update.exe 1028 Windows Update.exe -
Suspicious use of WriteProcessMemory 27 IoCs
description pid Process procid_target PID 4192 wrote to memory of 5044 4192 4fcf6a0b40b045b1ce5c37c912989ad0f8a26f5eb18dde467ab5565c09b90792.exe 79 PID 4192 wrote to memory of 5044 4192 4fcf6a0b40b045b1ce5c37c912989ad0f8a26f5eb18dde467ab5565c09b90792.exe 79 PID 4192 wrote to memory of 5044 4192 4fcf6a0b40b045b1ce5c37c912989ad0f8a26f5eb18dde467ab5565c09b90792.exe 79 PID 5044 wrote to memory of 3112 5044 4fcf6a0b40b045b1ce5c37c912989ad0f8a26f5eb18dde467ab5565c09b90792.exe 80 PID 5044 wrote to memory of 3112 5044 4fcf6a0b40b045b1ce5c37c912989ad0f8a26f5eb18dde467ab5565c09b90792.exe 80 PID 5044 wrote to memory of 3112 5044 4fcf6a0b40b045b1ce5c37c912989ad0f8a26f5eb18dde467ab5565c09b90792.exe 80 PID 3112 wrote to memory of 1028 3112 Windows Update.exe 81 PID 3112 wrote to memory of 1028 3112 Windows Update.exe 81 PID 3112 wrote to memory of 1028 3112 Windows Update.exe 81 PID 1028 wrote to memory of 3336 1028 Windows Update.exe 82 PID 1028 wrote to memory of 3336 1028 Windows Update.exe 82 PID 1028 wrote to memory of 3336 1028 Windows Update.exe 82 PID 1028 wrote to memory of 3336 1028 Windows Update.exe 82 PID 1028 wrote to memory of 3336 1028 Windows Update.exe 82 PID 1028 wrote to memory of 3336 1028 Windows Update.exe 82 PID 1028 wrote to memory of 3336 1028 Windows Update.exe 82 PID 1028 wrote to memory of 3336 1028 Windows Update.exe 82 PID 1028 wrote to memory of 3336 1028 Windows Update.exe 82 PID 1028 wrote to memory of 828 1028 Windows Update.exe 83 PID 1028 wrote to memory of 828 1028 Windows Update.exe 83 PID 1028 wrote to memory of 828 1028 Windows Update.exe 83 PID 1028 wrote to memory of 828 1028 Windows Update.exe 83 PID 1028 wrote to memory of 828 1028 Windows Update.exe 83 PID 1028 wrote to memory of 828 1028 Windows Update.exe 83 PID 1028 wrote to memory of 828 1028 Windows Update.exe 83 PID 1028 wrote to memory of 828 1028 Windows Update.exe 83 PID 1028 wrote to memory of 828 1028 Windows Update.exe 83
Processes
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C:\Users\Admin\AppData\Local\Temp\4fcf6a0b40b045b1ce5c37c912989ad0f8a26f5eb18dde467ab5565c09b90792.exe"C:\Users\Admin\AppData\Local\Temp\4fcf6a0b40b045b1ce5c37c912989ad0f8a26f5eb18dde467ab5565c09b90792.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4192 -
C:\Users\Admin\AppData\Local\Temp\4fcf6a0b40b045b1ce5c37c912989ad0f8a26f5eb18dde467ab5565c09b90792.exeC:\Users\Admin\AppData\Local\Temp\4fcf6a0b40b045b1ce5c37c912989ad0f8a26f5eb18dde467ab5565c09b90792.exe"2⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:5044 -
C:\Users\Admin\AppData\Roaming\Windows Update.exe"C:\Users\Admin\AppData\Roaming\Windows Update.exe"3⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3112 -
C:\Users\Admin\AppData\Roaming\Windows Update.exeC:\Users\Admin\AppData\Roaming\Windows Update.exe"4⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1028 -
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
PID:3336
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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⤵
- Suspicious behavior: EnumeratesProcesses
PID:828
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
102B
MD5789604969bcc4a6b979d79fef4470935
SHA1d29d62732533dec35a81559259de1b4e7c2cfe9e
SHA256172c35024fde99fd313b733a569270c0648f9f366e8d03370d11ff5cfe0bd1cb
SHA512a971a46171714fab7ff4ed02ae12a1b2320fbd9faf90ea49f428ec5d1368cbf947bdd3bdd97fa16217b5de491dcb660f132896724139494377f3ae1ed74217ef
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Filesize
3KB
MD5f94dc819ca773f1e3cb27abbc9e7fa27
SHA19a7700efadc5ea09ab288544ef1e3cd876255086
SHA256a3377ade83786c2bdff5db19ff4dbfd796da4312402b5e77c4c63e38cc6eff92
SHA51272a2c10d7a53a7f9a319dab66d77ed65639e9aa885b551e0055fc7eaf6ef33bbf109205b42ae11555a0f292563914bc6edb63b310c6f9bda9564095f77ab9196
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Filesize
970KB
MD57368657baf850ecfd5d70e1f8e2a0fcd
SHA170ec9d06ecd975708e1589da9900a75c8846e843
SHA2564fcf6a0b40b045b1ce5c37c912989ad0f8a26f5eb18dde467ab5565c09b90792
SHA512a54bf8e35f1209b4a6f22eccbda4ff95071791c870c7b5b88f7c511f66b4c3e2055ee9b6dfebe02154898e494244eb3614927a1144537b9e7d890915301ded8a
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Filesize
970KB
MD57368657baf850ecfd5d70e1f8e2a0fcd
SHA170ec9d06ecd975708e1589da9900a75c8846e843
SHA2564fcf6a0b40b045b1ce5c37c912989ad0f8a26f5eb18dde467ab5565c09b90792
SHA512a54bf8e35f1209b4a6f22eccbda4ff95071791c870c7b5b88f7c511f66b4c3e2055ee9b6dfebe02154898e494244eb3614927a1144537b9e7d890915301ded8a
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Filesize
970KB
MD57368657baf850ecfd5d70e1f8e2a0fcd
SHA170ec9d06ecd975708e1589da9900a75c8846e843
SHA2564fcf6a0b40b045b1ce5c37c912989ad0f8a26f5eb18dde467ab5565c09b90792
SHA512a54bf8e35f1209b4a6f22eccbda4ff95071791c870c7b5b88f7c511f66b4c3e2055ee9b6dfebe02154898e494244eb3614927a1144537b9e7d890915301ded8a