Analysis
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max time kernel
91s -
max time network
148s -
platform
windows10-2004_x64 -
resource
win10v2004-20230220-en -
resource tags
arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system -
submitted
28-03-2023 06:14
Static task
static1
Behavioral task
behavioral1
Sample
Sus derechos.exe
Resource
win7-20230220-en
Behavioral task
behavioral2
Sample
Sus derechos.exe
Resource
win10v2004-20230220-en
General
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Target
Sus derechos.exe
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Size
758KB
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MD5
2a30a6c475cac240bfb805e9e8585179
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SHA1
f2d2072d9f7265af4fa7da6bc0e5f58a5128c6a6
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SHA256
2b86bdceef870318c399cae840a7a41f7d267264c8e91e96566dee5ebda4d12e
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SHA512
344cd58f43d84c7cf50e871d5dcc772c448483aba181cf8056d1196884630b266200576c8509e683dbdc59756ab8100459aaaf79f7d9a31549dbc14391127ef3
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SSDEEP
12288:NeUJB0OAEhRgGaBJMWp+JTwdjGB1nuJGY0eUSqroDIc07tclGK3gJhZ:NH22BW8JTCRJAVZq07tclGKGD
Malware Config
Extracted
snakekeylogger
Protocol: smtp- Host:
smtp.cerranor.com - Port:
587 - Username:
clientes@cerranor.com - Password:
RxrpS#f2 - Email To:
jacga6381@gmail.com
Signatures
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Snake Keylogger
Keylogger and Infostealer first seen in November 2020.
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Snake Keylogger payload 1 IoCs
Processes:
resource yara_rule behavioral2/memory/2128-140-0x0000000000400000-0x0000000000426000-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
Processes:
Sus derechos.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-1013461898-3711306144-4198452673-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 Sus derechos.exe Key opened \REGISTRY\USER\S-1-5-21-1013461898-3711306144-4198452673-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 Sus derechos.exe Key opened \REGISTRY\USER\S-1-5-21-1013461898-3711306144-4198452673-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 Sus derechos.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 31 checkip.dyndns.org -
Suspicious use of SetThreadContext 1 IoCs
Processes:
Sus derechos.exedescription pid process target process PID 5040 set thread context of 2128 5040 Sus derechos.exe Sus derechos.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
Sus derechos.exepid process 2128 Sus derechos.exe 2128 Sus derechos.exe -
Suspicious behavior: RenamesItself 1 IoCs
Processes:
Sus derechos.exepid process 2128 Sus derechos.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
Sus derechos.exedescription pid process Token: SeDebugPrivilege 2128 Sus derechos.exe -
Suspicious use of WriteProcessMemory 8 IoCs
Processes:
Sus derechos.exedescription pid process target process PID 5040 wrote to memory of 2128 5040 Sus derechos.exe Sus derechos.exe PID 5040 wrote to memory of 2128 5040 Sus derechos.exe Sus derechos.exe PID 5040 wrote to memory of 2128 5040 Sus derechos.exe Sus derechos.exe PID 5040 wrote to memory of 2128 5040 Sus derechos.exe Sus derechos.exe PID 5040 wrote to memory of 2128 5040 Sus derechos.exe Sus derechos.exe PID 5040 wrote to memory of 2128 5040 Sus derechos.exe Sus derechos.exe PID 5040 wrote to memory of 2128 5040 Sus derechos.exe Sus derechos.exe PID 5040 wrote to memory of 2128 5040 Sus derechos.exe Sus derechos.exe -
outlook_office_path 1 IoCs
Processes:
Sus derechos.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-1013461898-3711306144-4198452673-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 Sus derechos.exe -
outlook_win_path 1 IoCs
Processes:
Sus derechos.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-1013461898-3711306144-4198452673-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 Sus derechos.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\Sus derechos.exe"C:\Users\Admin\AppData\Local\Temp\Sus derechos.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\Sus derechos.exe"C:\Users\Admin\AppData\Local\Temp\Sus derechos.exe"2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: RenamesItself
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
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Downloads
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C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\Sus derechos.exe.logFilesize
1KB
MD58ec831f3e3a3f77e4a7b9cd32b48384c
SHA1d83f09fd87c5bd86e045873c231c14836e76a05c
SHA2567667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982
SHA51226bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3
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memory/2128-140-0x0000000000400000-0x0000000000426000-memory.dmpFilesize
152KB
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memory/2128-143-0x0000000001480000-0x0000000001490000-memory.dmpFilesize
64KB
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memory/2128-144-0x0000000006720000-0x00000000068E2000-memory.dmpFilesize
1.8MB
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memory/2128-145-0x0000000001480000-0x0000000001490000-memory.dmpFilesize
64KB
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memory/5040-133-0x0000000000010000-0x00000000000D4000-memory.dmpFilesize
784KB
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memory/5040-134-0x0000000005120000-0x00000000056C4000-memory.dmpFilesize
5.6MB
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memory/5040-135-0x0000000004A70000-0x0000000004B02000-memory.dmpFilesize
584KB
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memory/5040-136-0x0000000004B10000-0x0000000004B1A000-memory.dmpFilesize
40KB
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memory/5040-137-0x0000000004C40000-0x0000000004C50000-memory.dmpFilesize
64KB
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memory/5040-138-0x0000000004C40000-0x0000000004C50000-memory.dmpFilesize
64KB
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memory/5040-139-0x0000000007D40000-0x0000000007DDC000-memory.dmpFilesize
624KB