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Analysis
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max time kernel
140s -
max time network
153s -
platform
windows10-2004_x64 -
resource
win10v2004-20230220-en -
resource tags
arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system -
submitted
08/05/2023, 08:25
Static task
static1
Behavioral task
behavioral1
Sample
MBUaTHW5wrIZaL0.exe
Resource
win7-20230220-en
Behavioral task
behavioral2
Sample
MBUaTHW5wrIZaL0.exe
Resource
win10v2004-20230220-en
General
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Target
MBUaTHW5wrIZaL0.exe
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Size
516KB
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MD5
47245a8954bdf53dea70e6bce223a6ee
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SHA1
d6b209cb02a5fdb0a8e8864cdaa0abbc4378de13
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SHA256
c867fd488ab6ce0432121c22a8135548149fdec7ac7034c5e9ad6a78f4d08c5d
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SHA512
c943cbf0e7f50d4f2b4aa52ce8c42b3f5c0af869dd5bb304d8eff9058b3aebd8ef06e40b71bb2de7402a39979460a0c1e0d86ef3207c5b330f71319e48126d24
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SSDEEP
12288:daRDyIR6h+kGeeZosJ2XLXEv/g7Ms1ienFHaPO:8MIR6peZosaLXEv/gV1iM4
Malware Config
Extracted
snakekeylogger
https://api.telegram.org/bot5412042498:AAH4OVSAlB-9yvO0MxObTPVF8mPej6Ln4M4/sendMessage?chat_id=5573520537
Signatures
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Snake Keylogger
Keylogger and Infostealer first seen in November 2020.
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Snake Keylogger payload 1 IoCs
resource yara_rule behavioral2/memory/4740-148-0x0000000000400000-0x0000000000426000-memory.dmp family_snakekeylogger -
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-1-5-21-1675742406-747946869-1029867430-1000\Control Panel\International\Geo\Nation MBUaTHW5wrIZaL0.exe -
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-1-5-21-1675742406-747946869-1029867430-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 MBUaTHW5wrIZaL0.exe Key opened \REGISTRY\USER\S-1-5-21-1675742406-747946869-1029867430-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 MBUaTHW5wrIZaL0.exe Key opened \REGISTRY\USER\S-1-5-21-1675742406-747946869-1029867430-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 MBUaTHW5wrIZaL0.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 29 checkip.dyndns.org -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 2232 set thread context of 4740 2232 MBUaTHW5wrIZaL0.exe 94 -
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 4576 schtasks.exe -
Suspicious behavior: EnumeratesProcesses 8 IoCs
pid Process 2232 MBUaTHW5wrIZaL0.exe 2232 MBUaTHW5wrIZaL0.exe 2232 MBUaTHW5wrIZaL0.exe 2232 MBUaTHW5wrIZaL0.exe 2232 MBUaTHW5wrIZaL0.exe 3916 powershell.exe 4740 MBUaTHW5wrIZaL0.exe 3916 powershell.exe -
Suspicious use of AdjustPrivilegeToken 3 IoCs
description pid Process Token: SeDebugPrivilege 2232 MBUaTHW5wrIZaL0.exe Token: SeDebugPrivilege 3916 powershell.exe Token: SeDebugPrivilege 4740 MBUaTHW5wrIZaL0.exe -
Suspicious use of WriteProcessMemory 14 IoCs
description pid Process procid_target PID 2232 wrote to memory of 3916 2232 MBUaTHW5wrIZaL0.exe 90 PID 2232 wrote to memory of 3916 2232 MBUaTHW5wrIZaL0.exe 90 PID 2232 wrote to memory of 3916 2232 MBUaTHW5wrIZaL0.exe 90 PID 2232 wrote to memory of 4576 2232 MBUaTHW5wrIZaL0.exe 92 PID 2232 wrote to memory of 4576 2232 MBUaTHW5wrIZaL0.exe 92 PID 2232 wrote to memory of 4576 2232 MBUaTHW5wrIZaL0.exe 92 PID 2232 wrote to memory of 4740 2232 MBUaTHW5wrIZaL0.exe 94 PID 2232 wrote to memory of 4740 2232 MBUaTHW5wrIZaL0.exe 94 PID 2232 wrote to memory of 4740 2232 MBUaTHW5wrIZaL0.exe 94 PID 2232 wrote to memory of 4740 2232 MBUaTHW5wrIZaL0.exe 94 PID 2232 wrote to memory of 4740 2232 MBUaTHW5wrIZaL0.exe 94 PID 2232 wrote to memory of 4740 2232 MBUaTHW5wrIZaL0.exe 94 PID 2232 wrote to memory of 4740 2232 MBUaTHW5wrIZaL0.exe 94 PID 2232 wrote to memory of 4740 2232 MBUaTHW5wrIZaL0.exe 94 -
outlook_office_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-1675742406-747946869-1029867430-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 MBUaTHW5wrIZaL0.exe -
outlook_win_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-1675742406-747946869-1029867430-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 MBUaTHW5wrIZaL0.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\MBUaTHW5wrIZaL0.exe"C:\Users\Admin\AppData\Local\Temp\MBUaTHW5wrIZaL0.exe"1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- 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\BkLzLchFlyfofz.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3916
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C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\BkLzLchFlyfofz" /XML "C:\Users\Admin\AppData\Local\Temp\tmp467F.tmp"2⤵
- Creates scheduled task(s)
PID:4576
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C:\Users\Admin\AppData\Local\Temp\MBUaTHW5wrIZaL0.exe"C:\Users\Admin\AppData\Local\Temp\MBUaTHW5wrIZaL0.exe"2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
PID:4740
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
1KB
MD549685ea2ec75b667620f01a9a097c5ec
SHA147e9533880b1f719c965e87e4d9bb4fe87b40436
SHA2562d4f542d8055f7c5a108ea58f8a99dd926f324ce7c7424f9065da187e497a5b8
SHA51238122768fb1cd36fdc62ff4dcfdb6554108b3e346f1361a71fdd091dbf86fc825fa3d3e79c86376384c32925b2c792bc7d37be566e4dbdb12a94c2af5e9ad790
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Filesize
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
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Filesize
1KB
MD57d6ce8ae64244cc28124e7979579abe2
SHA1b344de4f96d329c532f60e8dce875a9b89f39d43
SHA256f86650e46c43d7d73d15cad66819c53a956cd26018cc206cd2419aa94b541d70
SHA512fbf38688e4c9a92594991c8bd752268d807da8ad74813b8ec39465a56cf77691c26705f7795472fcbd926418c1a3aa8d7cc6ba998dba2f1033ac0b910479bef5