Analysis
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max time kernel
147s -
max time network
151s -
platform
windows10_x64 -
resource
win10-en-20211104 -
submitted
06-12-2021 13:18
Static task
static1
Behavioral task
behavioral1
Sample
Halkbank_Ekstre_20211206_073714_893133.pdf.exe
Resource
win7-en-20211014
Behavioral task
behavioral2
Sample
Halkbank_Ekstre_20211206_073714_893133.pdf.exe
Resource
win10-en-20211104
General
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Target
Halkbank_Ekstre_20211206_073714_893133.pdf.exe
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Size
1.3MB
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MD5
a79b059ad6fa9f6db6085ab511afbd68
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SHA1
ae8e5c2541ff2619a6f97b81c64c27cdb00f68cc
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SHA256
7c9ec86bf7e62028b5a8967b2cb83020123d033ca981f6ce0193f2c5f7133b7c
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SHA512
48acbdd89b49aa7f5908c78cbdb9a03ed82f1f974c471b09d43cbed6887ca3e783934d0a5e1692eda3e2c8db0842930257cd36bbfe54a36afb74381e05b025c3
Malware Config
Extracted
snakekeylogger
Protocol: smtp- Host:
mail.palladiumss.com - Port:
587 - Username:
raman@palladiumss.com - Password:
raman@1210
Signatures
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Snake Keylogger
Keylogger and Infostealer first seen in November 2020.
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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:
Halkbank_Ekstre_20211206_073714_893133.pdf.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-1042495040-510797905-2613508344-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 Halkbank_Ekstre_20211206_073714_893133.pdf.exe Key opened \REGISTRY\USER\S-1-5-21-1042495040-510797905-2613508344-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 Halkbank_Ekstre_20211206_073714_893133.pdf.exe Key opened \REGISTRY\USER\S-1-5-21-1042495040-510797905-2613508344-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 Halkbank_Ekstre_20211206_073714_893133.pdf.exe -
Looks up external IP address via web service 3 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
Processes:
flow ioc 24 freegeoip.app 25 freegeoip.app 22 checkip.dyndns.org -
Suspicious use of SetThreadContext 1 IoCs
Processes:
Halkbank_Ekstre_20211206_073714_893133.pdf.exedescription pid process target process PID 3092 set thread context of 2820 3092 Halkbank_Ekstre_20211206_073714_893133.pdf.exe Halkbank_Ekstre_20211206_073714_893133.pdf.exe -
Suspicious behavior: EnumeratesProcesses 1 IoCs
Processes:
Halkbank_Ekstre_20211206_073714_893133.pdf.exepid process 2820 Halkbank_Ekstre_20211206_073714_893133.pdf.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
Processes:
Halkbank_Ekstre_20211206_073714_893133.pdf.exeHalkbank_Ekstre_20211206_073714_893133.pdf.exedescription pid process Token: SeDebugPrivilege 3092 Halkbank_Ekstre_20211206_073714_893133.pdf.exe Token: SeDebugPrivilege 2820 Halkbank_Ekstre_20211206_073714_893133.pdf.exe -
Suspicious use of WriteProcessMemory 8 IoCs
Processes:
Halkbank_Ekstre_20211206_073714_893133.pdf.exedescription pid process target process PID 3092 wrote to memory of 2820 3092 Halkbank_Ekstre_20211206_073714_893133.pdf.exe Halkbank_Ekstre_20211206_073714_893133.pdf.exe PID 3092 wrote to memory of 2820 3092 Halkbank_Ekstre_20211206_073714_893133.pdf.exe Halkbank_Ekstre_20211206_073714_893133.pdf.exe PID 3092 wrote to memory of 2820 3092 Halkbank_Ekstre_20211206_073714_893133.pdf.exe Halkbank_Ekstre_20211206_073714_893133.pdf.exe PID 3092 wrote to memory of 2820 3092 Halkbank_Ekstre_20211206_073714_893133.pdf.exe Halkbank_Ekstre_20211206_073714_893133.pdf.exe PID 3092 wrote to memory of 2820 3092 Halkbank_Ekstre_20211206_073714_893133.pdf.exe Halkbank_Ekstre_20211206_073714_893133.pdf.exe PID 3092 wrote to memory of 2820 3092 Halkbank_Ekstre_20211206_073714_893133.pdf.exe Halkbank_Ekstre_20211206_073714_893133.pdf.exe PID 3092 wrote to memory of 2820 3092 Halkbank_Ekstre_20211206_073714_893133.pdf.exe Halkbank_Ekstre_20211206_073714_893133.pdf.exe PID 3092 wrote to memory of 2820 3092 Halkbank_Ekstre_20211206_073714_893133.pdf.exe Halkbank_Ekstre_20211206_073714_893133.pdf.exe -
outlook_office_path 1 IoCs
Processes:
Halkbank_Ekstre_20211206_073714_893133.pdf.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-1042495040-510797905-2613508344-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 Halkbank_Ekstre_20211206_073714_893133.pdf.exe -
outlook_win_path 1 IoCs
Processes:
Halkbank_Ekstre_20211206_073714_893133.pdf.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-1042495040-510797905-2613508344-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 Halkbank_Ekstre_20211206_073714_893133.pdf.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\Halkbank_Ekstre_20211206_073714_893133.pdf.exe"C:\Users\Admin\AppData\Local\Temp\Halkbank_Ekstre_20211206_073714_893133.pdf.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\Halkbank_Ekstre_20211206_073714_893133.pdf.exe"C:\Users\Admin\AppData\Local\Temp\Halkbank_Ekstre_20211206_073714_893133.pdf.exe"2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
Loading Replay Monitor...
Downloads
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C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\Halkbank_Ekstre_20211206_073714_893133.pdf.exe.logMD5
275a35c2757ec3117c1da2356fd908be
SHA15235bc7207c2432a34078551e7199b6da8447f37
SHA2569eaae6c9d244f410fb0f403356d0d0d602831c92d49c5d9ed7216435d6ae5619
SHA512dfadf4c15fae2d8840ac85e747f3288792b7677e00b2313a9021be86151a4fe589b47688ece5570041dc8b77dd3c4273ab9222ef819046a5e8f647679f6063f7
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memory/2820-129-0x000000000042043E-mapping.dmp
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memory/2820-136-0x00000000065A0000-0x00000000065A1000-memory.dmpFilesize
4KB
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memory/2820-135-0x0000000005280000-0x000000000577E000-memory.dmpFilesize
5.0MB
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memory/2820-128-0x0000000000400000-0x0000000000426000-memory.dmpFilesize
152KB
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memory/3092-122-0x00000000076D0000-0x0000000007BCE000-memory.dmpFilesize
5.0MB
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memory/3092-125-0x0000000007B20000-0x0000000007B21000-memory.dmpFilesize
4KB
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memory/3092-126-0x0000000008370000-0x0000000008371000-memory.dmpFilesize
4KB
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memory/3092-127-0x0000000008610000-0x000000000871A000-memory.dmpFilesize
1.0MB
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memory/3092-124-0x0000000007AD0000-0x0000000007AD8000-memory.dmpFilesize
32KB
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memory/3092-123-0x0000000007790000-0x0000000007791000-memory.dmpFilesize
4KB
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memory/3092-118-0x0000000000880000-0x0000000000881000-memory.dmpFilesize
4KB
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memory/3092-121-0x00000000076D0000-0x00000000076D1000-memory.dmpFilesize
4KB
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memory/3092-120-0x0000000007BD0000-0x0000000007BD1000-memory.dmpFilesize
4KB