Analysis
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max time kernel
79s -
max time network
126s -
platform
windows10_x64 -
resource
win10-en-20210920 -
submitted
19-10-2021 13:39
Static task
static1
Behavioral task
behavioral1
Sample
Halkbank_Ekstre_2021151083739977776234_4397392776763884.exe
Resource
win7-en-20211014
Behavioral task
behavioral2
Sample
Halkbank_Ekstre_2021151083739977776234_4397392776763884.exe
Resource
win10-en-20210920
General
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Target
Halkbank_Ekstre_2021151083739977776234_4397392776763884.exe
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Size
310KB
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MD5
9f78e05450597bf6492983152fb0775b
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SHA1
146781a936737cf7f9d7ac5022cf7385b7f165a3
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SHA256
7fc84151175c22d691f980a4e97131487d292e5d32e3ddf243e06065ef8ab805
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SHA512
44cb53ac7be417e745b886dbfd0b0e3957c213ea9f32351d22e13925d21725b8098389f61f3268ba0a8c0ef53c2f10ee2ec50f97a24a1e4b5b157a83c7ac3988
Malware Config
Extracted
snakekeylogger
Protocol: smtp- Host:
mail.enche.com - Port:
587 - Username:
[email protected] - Password:
Merchandise08012021
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_2021151083739977776234_4397392776763884.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-2481030822-2828258191-1606198294-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 Halkbank_Ekstre_2021151083739977776234_4397392776763884.exe Key opened \REGISTRY\USER\S-1-5-21-2481030822-2828258191-1606198294-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 Halkbank_Ekstre_2021151083739977776234_4397392776763884.exe Key opened \REGISTRY\USER\S-1-5-21-2481030822-2828258191-1606198294-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 Halkbank_Ekstre_2021151083739977776234_4397392776763884.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 30 checkip.dyndns.org 32 freegeoip.app 33 freegeoip.app -
Suspicious use of SetThreadContext 1 IoCs
Processes:
Halkbank_Ekstre_2021151083739977776234_4397392776763884.exedescription pid process target process PID 1796 set thread context of 1568 1796 Halkbank_Ekstre_2021151083739977776234_4397392776763884.exe Halkbank_Ekstre_2021151083739977776234_4397392776763884.exe -
Suspicious behavior: EnumeratesProcesses 3 IoCs
Processes:
Halkbank_Ekstre_2021151083739977776234_4397392776763884.exeHalkbank_Ekstre_2021151083739977776234_4397392776763884.exepid process 1796 Halkbank_Ekstre_2021151083739977776234_4397392776763884.exe 1796 Halkbank_Ekstre_2021151083739977776234_4397392776763884.exe 1568 Halkbank_Ekstre_2021151083739977776234_4397392776763884.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
Processes:
Halkbank_Ekstre_2021151083739977776234_4397392776763884.exeHalkbank_Ekstre_2021151083739977776234_4397392776763884.exedescription pid process Token: SeDebugPrivilege 1796 Halkbank_Ekstre_2021151083739977776234_4397392776763884.exe Token: SeDebugPrivilege 1568 Halkbank_Ekstre_2021151083739977776234_4397392776763884.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
Processes:
Halkbank_Ekstre_2021151083739977776234_4397392776763884.exepid process 1796 Halkbank_Ekstre_2021151083739977776234_4397392776763884.exe 1796 Halkbank_Ekstre_2021151083739977776234_4397392776763884.exe -
Suspicious use of WriteProcessMemory 11 IoCs
Processes:
Halkbank_Ekstre_2021151083739977776234_4397392776763884.exedescription pid process target process PID 1796 wrote to memory of 2740 1796 Halkbank_Ekstre_2021151083739977776234_4397392776763884.exe Halkbank_Ekstre_2021151083739977776234_4397392776763884.exe PID 1796 wrote to memory of 2740 1796 Halkbank_Ekstre_2021151083739977776234_4397392776763884.exe Halkbank_Ekstre_2021151083739977776234_4397392776763884.exe PID 1796 wrote to memory of 2740 1796 Halkbank_Ekstre_2021151083739977776234_4397392776763884.exe Halkbank_Ekstre_2021151083739977776234_4397392776763884.exe PID 1796 wrote to memory of 1568 1796 Halkbank_Ekstre_2021151083739977776234_4397392776763884.exe Halkbank_Ekstre_2021151083739977776234_4397392776763884.exe PID 1796 wrote to memory of 1568 1796 Halkbank_Ekstre_2021151083739977776234_4397392776763884.exe Halkbank_Ekstre_2021151083739977776234_4397392776763884.exe PID 1796 wrote to memory of 1568 1796 Halkbank_Ekstre_2021151083739977776234_4397392776763884.exe Halkbank_Ekstre_2021151083739977776234_4397392776763884.exe PID 1796 wrote to memory of 1568 1796 Halkbank_Ekstre_2021151083739977776234_4397392776763884.exe Halkbank_Ekstre_2021151083739977776234_4397392776763884.exe PID 1796 wrote to memory of 1568 1796 Halkbank_Ekstre_2021151083739977776234_4397392776763884.exe Halkbank_Ekstre_2021151083739977776234_4397392776763884.exe PID 1796 wrote to memory of 1568 1796 Halkbank_Ekstre_2021151083739977776234_4397392776763884.exe Halkbank_Ekstre_2021151083739977776234_4397392776763884.exe PID 1796 wrote to memory of 1568 1796 Halkbank_Ekstre_2021151083739977776234_4397392776763884.exe Halkbank_Ekstre_2021151083739977776234_4397392776763884.exe PID 1796 wrote to memory of 1568 1796 Halkbank_Ekstre_2021151083739977776234_4397392776763884.exe Halkbank_Ekstre_2021151083739977776234_4397392776763884.exe -
outlook_office_path 1 IoCs
Processes:
Halkbank_Ekstre_2021151083739977776234_4397392776763884.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-2481030822-2828258191-1606198294-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 Halkbank_Ekstre_2021151083739977776234_4397392776763884.exe -
outlook_win_path 1 IoCs
Processes:
Halkbank_Ekstre_2021151083739977776234_4397392776763884.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-2481030822-2828258191-1606198294-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 Halkbank_Ekstre_2021151083739977776234_4397392776763884.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\Halkbank_Ekstre_2021151083739977776234_4397392776763884.exe"C:\Users\Admin\AppData\Local\Temp\Halkbank_Ekstre_2021151083739977776234_4397392776763884.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\Halkbank_Ekstre_2021151083739977776234_4397392776763884.exe"C:\Users\Admin\AppData\Local\Temp\Halkbank_Ekstre_2021151083739977776234_4397392776763884.exe"2⤵
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C:\Users\Admin\AppData\Local\Temp\Halkbank_Ekstre_2021151083739977776234_4397392776763884.exe"C:\Users\Admin\AppData\Local\Temp\Halkbank_Ekstre_2021151083739977776234_4397392776763884.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_2021151083739977776234_4397392776763884.exe.logMD5
0c2899d7c6746f42d5bbe088c777f94c
SHA1622f66c5f7a3c91b28a9f43ce7c6cabadbf514f1
SHA2565b0b99740cadaeff7b9891136644b396941547e20cc7eea646560d0dad5a5458
SHA512ab7a3409ed4b6ca00358330a3aa4ef6de7d81eb21a5e24bb629ef6a7c7c4e2a70ca3accfbc989ed6e495fdb8eb6203a26d6f2a37b2a5809af4276af375b49078
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memory/1568-127-0x000000000042051E-mapping.dmp
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memory/1568-135-0x0000000006520000-0x0000000006521000-memory.dmpFilesize
4KB
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memory/1568-133-0x0000000005010000-0x000000000550E000-memory.dmpFilesize
5.0MB
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memory/1568-126-0x0000000000400000-0x0000000000426000-memory.dmpFilesize
152KB
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memory/1796-122-0x0000000004CA0000-0x000000000519E000-memory.dmpFilesize
5.0MB
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memory/1796-115-0x0000000000420000-0x0000000000421000-memory.dmpFilesize
4KB
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memory/1796-123-0x0000000008A50000-0x0000000008A58000-memory.dmpFilesize
32KB
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memory/1796-124-0x0000000009080000-0x0000000009081000-memory.dmpFilesize
4KB
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memory/1796-125-0x0000000009120000-0x0000000009162000-memory.dmpFilesize
264KB
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memory/1796-121-0x0000000004CA0000-0x000000000519E000-memory.dmpFilesize
5.0MB
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memory/1796-120-0x0000000004CC0000-0x0000000004CC1000-memory.dmpFilesize
4KB
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memory/1796-119-0x0000000004CA0000-0x000000000519E000-memory.dmpFilesize
5.0MB
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memory/1796-118-0x0000000004D40000-0x0000000004D41000-memory.dmpFilesize
4KB
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memory/1796-117-0x00000000051A0000-0x00000000051A1000-memory.dmpFilesize
4KB