Analysis
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max time kernel
142s -
max time network
154s -
platform
windows10-2004_x64 -
resource
win10v2004-20230703-en -
resource tags
arch:x64arch:x86image:win10v2004-20230703-enlocale:en-usos:windows10-2004-x64system -
submitted
19/07/2023, 12:47
Static task
static1
Behavioral task
behavioral1
Sample
Confirmación de transferencia.exe
Resource
win7-20230712-en
Behavioral task
behavioral2
Sample
Confirmación de transferencia.exe
Resource
win10v2004-20230703-en
General
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Target
Confirmación de transferencia.exe
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Size
590KB
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MD5
23e2e7bd3d1d30d4881b382d10a54c9c
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SHA1
a75a3fc37c081a8e36eb46a64d1673e541369782
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SHA256
1a1c58b80969ae187cde83fd32586d6072f8b66eae0dd3ae81c7b0d015d5c308
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SHA512
493fdd35c6db8574d10f2dfdd19040fbdaca9bae7599393a9cec93c3fde1f775804ed8994b6d37c3171f52e61a7beb1afad300a0aa93d92abb1f53c878996d9b
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SSDEEP
12288:pyPYPfY7hJGELu3yqwhy5kD8KeNjIqhlVSKZ2jv:MPYPgXqCqwE5uze+qfD2j
Malware Config
Extracted
snakekeylogger
Protocol: smtp- Host:
mail.profdent.com.tr - Port:
587 - Username:
[email protected] - Password:
321123Muhasebe. - 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 2 IoCs
resource yara_rule behavioral2/memory/2664-142-0x0000000000400000-0x0000000000426000-memory.dmp family_snakekeylogger behavioral2/memory/2664-147-0x00000000052E0000-0x00000000052F0000-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-1-5-21-3011986978-2180659500-3669311805-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 Confirmación de transferencia.exe Key opened \REGISTRY\USER\S-1-5-21-3011986978-2180659500-3669311805-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 Confirmación de transferencia.exe Key opened \REGISTRY\USER\S-1-5-21-3011986978-2180659500-3669311805-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 Confirmación de transferencia.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 32 checkip.dyndns.org -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 3488 set thread context of 2664 3488 Confirmación de transferencia.exe 94 -
Suspicious behavior: EnumeratesProcesses 11 IoCs
pid Process 3488 Confirmación de transferencia.exe 3488 Confirmación de transferencia.exe 2664 Confirmación de transferencia.exe 2664 Confirmación de transferencia.exe 2664 Confirmación de transferencia.exe 2664 Confirmación de transferencia.exe 2664 Confirmación de transferencia.exe 2664 Confirmación de transferencia.exe 2664 Confirmación de transferencia.exe 2664 Confirmación de transferencia.exe 2664 Confirmación de transferencia.exe -
Suspicious behavior: RenamesItself 1 IoCs
pid Process 2664 Confirmación de transferencia.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 3488 Confirmación de transferencia.exe Token: SeDebugPrivilege 2664 Confirmación de transferencia.exe -
Suspicious use of WriteProcessMemory 8 IoCs
description pid Process procid_target PID 3488 wrote to memory of 2664 3488 Confirmación de transferencia.exe 94 PID 3488 wrote to memory of 2664 3488 Confirmación de transferencia.exe 94 PID 3488 wrote to memory of 2664 3488 Confirmación de transferencia.exe 94 PID 3488 wrote to memory of 2664 3488 Confirmación de transferencia.exe 94 PID 3488 wrote to memory of 2664 3488 Confirmación de transferencia.exe 94 PID 3488 wrote to memory of 2664 3488 Confirmación de transferencia.exe 94 PID 3488 wrote to memory of 2664 3488 Confirmación de transferencia.exe 94 PID 3488 wrote to memory of 2664 3488 Confirmación de transferencia.exe 94 -
outlook_office_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-3011986978-2180659500-3669311805-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 Confirmación de transferencia.exe -
outlook_win_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-3011986978-2180659500-3669311805-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 Confirmación de transferencia.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\Confirmación de transferencia.exe"C:\Users\Admin\AppData\Local\Temp\Confirmación de transferencia.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3488 -
C:\Users\Admin\AppData\Local\Temp\Confirmación de transferencia.exe"C:\Users\Admin\AppData\Local\Temp\Confirmación de transferencia.exe"2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: RenamesItself
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
PID:2664
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
1KB
MD58ec831f3e3a3f77e4a7b9cd32b48384c
SHA1d83f09fd87c5bd86e045873c231c14836e76a05c
SHA2567667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982
SHA51226bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3