Analysis
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max time kernel
98s -
max time network
148s -
platform
windows10-2004_x64 -
resource
win10v2004-20220812-en -
resource tags
arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system -
submitted
05-10-2022 07:57
Static task
static1
Behavioral task
behavioral1
Sample
tmp.exe
Resource
win7-20220812-en
Behavioral task
behavioral2
Sample
tmp.exe
Resource
win10v2004-20220812-en
General
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Target
tmp.exe
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Size
1.0MB
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MD5
00839478c6c86d747952b11217b1ad98
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SHA1
bc363604aac42b10f0106f28cd53a85fa03dea08
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SHA256
beb581aaec97ca8d00d79699577849cd46a8e25561e29e906a1adb254ffc2549
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SHA512
4eb303459709b64c06838f6c8ffa936c88839df01b976e0c058c2ba687bcd6df2e50282a0145929f76abd5cf9cfc3b7983eb6f5b32803b68897ac942caf407d2
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SSDEEP
24576:BxZ81WYVrrukMf7KKWx/ekX3kmIGQP7EBtwyLl:XZ8cTkMfe/eU0fjEjwyL
Malware Config
Extracted
snakekeylogger
Protocol: smtp- Host:
us2.smtp.mailhostbox.com - Port:
587 - Username:
[email protected] - Password:
doDHyw%0 - Email To:
[email protected]
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/3968-139-0x0000000000400000-0x0000000000426000-memory.dmp family_snakekeylogger -
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-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 tmp.exe Key opened \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 tmp.exe Key opened \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 tmp.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 36 checkip.dyndns.org -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 2024 set thread context of 3968 2024 tmp.exe 92 -
Suspicious behavior: EnumeratesProcesses 1 IoCs
pid Process 3968 tmp.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 3968 tmp.exe -
Suspicious use of FindShellTrayWindow 1 IoCs
pid Process 2024 tmp.exe -
Suspicious use of SendNotifyMessage 1 IoCs
pid Process 2024 tmp.exe -
Suspicious use of WriteProcessMemory 8 IoCs
description pid Process procid_target PID 2024 wrote to memory of 3968 2024 tmp.exe 92 PID 2024 wrote to memory of 3968 2024 tmp.exe 92 PID 2024 wrote to memory of 3968 2024 tmp.exe 92 PID 2024 wrote to memory of 3968 2024 tmp.exe 92 PID 2024 wrote to memory of 3968 2024 tmp.exe 92 PID 2024 wrote to memory of 3968 2024 tmp.exe 92 PID 2024 wrote to memory of 3968 2024 tmp.exe 92 PID 2024 wrote to memory of 3968 2024 tmp.exe 92 -
outlook_office_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 tmp.exe -
outlook_win_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 tmp.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\tmp.exe"C:\Users\Admin\AppData\Local\Temp\tmp.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:2024 -
C:\Users\Admin\AppData\Local\Temp\tmp.exe"C:\Users\Admin\AppData\Local\Temp\tmp.exe"2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
PID:3968
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
1KB
MD5e08f822522c617a40840c62e4b0fb45e
SHA1ae516dca4da5234be6676d3f234c19ec55725be7
SHA256bd9d5e9f7fe6fcff17d873555d4077d15f7d6cdda1183e7f7d278b735ffe1fd7
SHA512894a7fb7bbc18ac6ba13378f58a7db80ad00d6080be9a66b01cae8e23e41d9d2d4cd53c1e20669356b73590c8a3ebfda4bdda3258f81240db56c4a81b7313fe4