Analysis
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max time kernel
149s -
max time network
155s -
platform
windows10-2004_x64 -
resource
win10v2004-20230703-en -
resource tags
arch:x64arch:x86image:win10v2004-20230703-enlocale:en-usos:windows10-2004-x64system -
submitted
05/07/2023, 11:54
Static task
static1
Behavioral task
behavioral1
Sample
cae61098f571771339f1e2c60.exe
Resource
win7-20230703-en
Behavioral task
behavioral2
Sample
cae61098f571771339f1e2c60.exe
Resource
win10v2004-20230703-en
General
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Target
cae61098f571771339f1e2c60.exe
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Size
623KB
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MD5
cae61098f571771339f1e2c609059896
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SHA1
543051ca2efda9574bdbcf26aab61743d6ee0802
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SHA256
3cc73f7b43850205f2e810f4c82bf2c3c97864f19794fb62b9b0172e2ee3a6b4
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SHA512
8fe181f7b72875b8182f8b5a133722460621766509ce13b2979f79865dc9c3a1c2ed17365d113f0672b33b680923af75d53044cbb7cae7c210b34dca72af3571
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SSDEEP
12288:smRtpPVD9Epjsr82BY24XbWGslmv1XzUxk+:Xijsr82W24hBvVw
Malware Config
Extracted
Protocol: smtp- Host:
mail.mutuadebasto.pt - Port:
587 - Username:
[email protected] - Password:
mutua_Fernando123
Extracted
snakekeylogger
Protocol: smtp- Host:
mail.mutuadebasto.pt - Port:
587 - Username:
[email protected] - Password:
mutua_Fernando123 - 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/228-140-0x0000000000400000-0x0000000000426000-memory.dmp family_snakekeylogger -
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-1-5-21-4176143399-3250363947-192774652-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 cae61098f571771339f1e2c60.exe Key opened \REGISTRY\USER\S-1-5-21-4176143399-3250363947-192774652-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 cae61098f571771339f1e2c60.exe Key opened \REGISTRY\USER\S-1-5-21-4176143399-3250363947-192774652-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 cae61098f571771339f1e2c60.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 1 checkip.dyndns.org -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 4800 set thread context of 228 4800 cae61098f571771339f1e2c60.exe 79 -
Suspicious behavior: EnumeratesProcesses 11 IoCs
pid Process 4800 cae61098f571771339f1e2c60.exe 4800 cae61098f571771339f1e2c60.exe 228 cae61098f571771339f1e2c60.exe 228 cae61098f571771339f1e2c60.exe 228 cae61098f571771339f1e2c60.exe 228 cae61098f571771339f1e2c60.exe 228 cae61098f571771339f1e2c60.exe 228 cae61098f571771339f1e2c60.exe 228 cae61098f571771339f1e2c60.exe 228 cae61098f571771339f1e2c60.exe 228 cae61098f571771339f1e2c60.exe -
Suspicious behavior: RenamesItself 1 IoCs
pid Process 228 cae61098f571771339f1e2c60.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 4800 cae61098f571771339f1e2c60.exe Token: SeDebugPrivilege 228 cae61098f571771339f1e2c60.exe -
Suspicious use of WriteProcessMemory 8 IoCs
description pid Process procid_target PID 4800 wrote to memory of 228 4800 cae61098f571771339f1e2c60.exe 79 PID 4800 wrote to memory of 228 4800 cae61098f571771339f1e2c60.exe 79 PID 4800 wrote to memory of 228 4800 cae61098f571771339f1e2c60.exe 79 PID 4800 wrote to memory of 228 4800 cae61098f571771339f1e2c60.exe 79 PID 4800 wrote to memory of 228 4800 cae61098f571771339f1e2c60.exe 79 PID 4800 wrote to memory of 228 4800 cae61098f571771339f1e2c60.exe 79 PID 4800 wrote to memory of 228 4800 cae61098f571771339f1e2c60.exe 79 PID 4800 wrote to memory of 228 4800 cae61098f571771339f1e2c60.exe 79 -
outlook_office_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-4176143399-3250363947-192774652-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 cae61098f571771339f1e2c60.exe -
outlook_win_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-4176143399-3250363947-192774652-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 cae61098f571771339f1e2c60.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\cae61098f571771339f1e2c60.exe"C:\Users\Admin\AppData\Local\Temp\cae61098f571771339f1e2c60.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4800 -
C:\Users\Admin\AppData\Local\Temp\cae61098f571771339f1e2c60.exe"C:\Users\Admin\AppData\Local\Temp\cae61098f571771339f1e2c60.exe"2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: RenamesItself
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
PID:228
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