Analysis
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max time kernel
204s -
max time network
226s -
platform
windows10-2004_x64 -
resource
win10v2004-20230915-en -
resource tags
arch:x64arch:x86image:win10v2004-20230915-enlocale:en-usos:windows10-2004-x64system -
submitted
11-10-2023 19:25
Static task
static1
Behavioral task
behavioral1
Sample
Fnjnpedy.exe
Resource
win7-20230831-en
Behavioral task
behavioral2
Sample
Fnjnpedy.exe
Resource
win10v2004-20230915-en
General
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Target
Fnjnpedy.exe
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Size
32KB
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MD5
61a347aa80bae20fc5908ae86f8790ad
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SHA1
2163cacdcb0b91e2a4c4cb2e2e021d6148961854
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SHA256
41ccb4c165200571b2d10047d7e25c85e7a270c2bb6c3438c7f8edce7dc2fc9c
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SHA512
e1cfd42004c0c1c32af49632769ba84dd93c128e210ced9f47fffbbd3f1324885e4d830b90432c83082c17c44ada91878c33585bdd5cb27c3b47486ae9ecd30c
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SSDEEP
384:LzsL/CyUCVnCMr2jEKqv++7Jk+qY/sgKwLF12APL6yRqtxAx+roEOPVK/KO+zB6a:aUCVCMrJJd5pRKs3RqtGx+roLYP+ka
Malware Config
Extracted
snakekeylogger
https://api.telegram.org/bot6675876060:AAEydIMROdr0XsdBN7fk_mjJRQvyv_ectv4/sendMessage?chat_id=5262627523
Signatures
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Snake Keylogger
Keylogger and Infostealer first seen in November 2020.
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Snake Keylogger payload 2 IoCs
Processes:
resource yara_rule behavioral2/memory/5064-8-0x0000000140000000-0x0000000140022000-memory.dmp family_snakekeylogger behavioral2/memory/5064-12-0x000002784E780000-0x000002784E790000-memory.dmp family_snakekeylogger -
Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
Processes:
MSBuild.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-1045988481-1457812719-2617974652-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 MSBuild.exe Key opened \REGISTRY\USER\S-1-5-21-1045988481-1457812719-2617974652-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 MSBuild.exe Key opened \REGISTRY\USER\S-1-5-21-1045988481-1457812719-2617974652-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 MSBuild.exe -
Adds Run key to start application 2 TTPs 1 IoCs
Processes:
Fnjnpedy.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-1045988481-1457812719-2617974652-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cccccc = "C:\\Users\\Admin\\AppData\\Roaming\\cccccc.exe" Fnjnpedy.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.
Processes:
flow ioc 48 checkip.dyndns.org -
Suspicious use of SetThreadContext 1 IoCs
Processes:
Fnjnpedy.exedescription pid process target process PID 2080 set thread context of 5064 2080 Fnjnpedy.exe MSBuild.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
MSBuild.exepid process 5064 MSBuild.exe 5064 MSBuild.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
Processes:
Fnjnpedy.exeMSBuild.exedescription pid process Token: SeDebugPrivilege 2080 Fnjnpedy.exe Token: SeDebugPrivilege 5064 MSBuild.exe -
Suspicious use of WriteProcessMemory 6 IoCs
Processes:
Fnjnpedy.exedescription pid process target process PID 2080 wrote to memory of 5064 2080 Fnjnpedy.exe MSBuild.exe PID 2080 wrote to memory of 5064 2080 Fnjnpedy.exe MSBuild.exe PID 2080 wrote to memory of 5064 2080 Fnjnpedy.exe MSBuild.exe PID 2080 wrote to memory of 5064 2080 Fnjnpedy.exe MSBuild.exe PID 2080 wrote to memory of 5064 2080 Fnjnpedy.exe MSBuild.exe PID 2080 wrote to memory of 5064 2080 Fnjnpedy.exe MSBuild.exe -
outlook_office_path 1 IoCs
Processes:
MSBuild.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-1045988481-1457812719-2617974652-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 MSBuild.exe -
outlook_win_path 1 IoCs
Processes:
MSBuild.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-1045988481-1457812719-2617974652-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 MSBuild.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\Fnjnpedy.exe"C:\Users\Admin\AppData\Local\Temp\Fnjnpedy.exe"1⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2080 -
C:\Windows\Microsoft.NET\Framework64\v4.0.30319\MSBuild.exeC:\Windows\Microsoft.NET\Framework64\v4.0.30319\MSBuild.exe2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
PID:5064