Analysis
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max time kernel
139s -
max time network
148s -
platform
windows10-2004_x64 -
resource
win10v2004-20231023-en -
resource tags
arch:x64arch:x86image:win10v2004-20231023-enlocale:en-usos:windows10-2004-x64system -
submitted
03-11-2023 16:19
Static task
static1
Behavioral task
behavioral1
Sample
VakifBankKrediKartiHesapOzeti.exe
Resource
win7-20231023-en
Behavioral task
behavioral2
Sample
VakifBankKrediKartiHesapOzeti.exe
Resource
win10v2004-20231023-en
General
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Target
VakifBankKrediKartiHesapOzeti.exe
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Size
21KB
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MD5
7c680b856965144ada69a5afcb031813
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SHA1
01967f1e2da8cdf027d42f4fa6f8d2214c7e0a49
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SHA256
fddb5c07d9ae4295bec096fe40d29b14c27be92760e586ec99ca43a43fe16244
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SHA512
8f742c86ad50e7e59149957b6dc57a16c0714bc45d26a8e741cf0d4fb30afac710365bf88546654b81f055927f6a34802a5ce79b44da47fc1c01f1123f8a8fa1
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SSDEEP
384:Is8eRdyRZZFFYPd8yx3IQGrhowkp48fNZ1RzWkET7AsbRO3gCR/1:j8id3T265p48fN/EbUQCRd
Malware Config
Extracted
snakekeylogger
https://api.telegram.org/bot6350529534:AAEbFW9VBWTKQfN1Y3K_5RJARCtOn1UqK8o/sendMessage?chat_id=1467583453
Signatures
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Snake Keylogger
Keylogger and Infostealer first seen in November 2020.
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Snake Keylogger payload 2 IoCs
Processes:
resource yara_rule behavioral2/memory/1372-10-0x0000000140000000-0x0000000140022000-memory.dmp family_snakekeylogger behavioral2/memory/1372-15-0x000001B8FEC20000-0x000001B8FEC30000-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
Processes:
VakifBankKrediKartiHesapOzeti.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-2231940048-779848787-2990559741-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 VakifBankKrediKartiHesapOzeti.exe Key opened \REGISTRY\USER\S-1-5-21-2231940048-779848787-2990559741-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 VakifBankKrediKartiHesapOzeti.exe Key opened \REGISTRY\USER\S-1-5-21-2231940048-779848787-2990559741-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 VakifBankKrediKartiHesapOzeti.exe -
Adds Run key to start application 2 TTPs 1 IoCs
Processes:
VakifBankKrediKartiHesapOzeti.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-2231940048-779848787-2990559741-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Xyfdgz = "C:\\Users\\Admin\\AppData\\Roaming\\Xyfdgz.exe" VakifBankKrediKartiHesapOzeti.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 44 checkip.dyndns.org -
Suspicious use of SetThreadContext 1 IoCs
Processes:
VakifBankKrediKartiHesapOzeti.exedescription pid process target process PID 1812 set thread context of 1372 1812 VakifBankKrediKartiHesapOzeti.exe VakifBankKrediKartiHesapOzeti.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
VakifBankKrediKartiHesapOzeti.exepid process 1372 VakifBankKrediKartiHesapOzeti.exe 1372 VakifBankKrediKartiHesapOzeti.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
Processes:
VakifBankKrediKartiHesapOzeti.exeVakifBankKrediKartiHesapOzeti.exedescription pid process Token: SeDebugPrivilege 1812 VakifBankKrediKartiHesapOzeti.exe Token: SeDebugPrivilege 1372 VakifBankKrediKartiHesapOzeti.exe -
Suspicious use of WriteProcessMemory 6 IoCs
Processes:
VakifBankKrediKartiHesapOzeti.exedescription pid process target process PID 1812 wrote to memory of 1372 1812 VakifBankKrediKartiHesapOzeti.exe VakifBankKrediKartiHesapOzeti.exe PID 1812 wrote to memory of 1372 1812 VakifBankKrediKartiHesapOzeti.exe VakifBankKrediKartiHesapOzeti.exe PID 1812 wrote to memory of 1372 1812 VakifBankKrediKartiHesapOzeti.exe VakifBankKrediKartiHesapOzeti.exe PID 1812 wrote to memory of 1372 1812 VakifBankKrediKartiHesapOzeti.exe VakifBankKrediKartiHesapOzeti.exe PID 1812 wrote to memory of 1372 1812 VakifBankKrediKartiHesapOzeti.exe VakifBankKrediKartiHesapOzeti.exe PID 1812 wrote to memory of 1372 1812 VakifBankKrediKartiHesapOzeti.exe VakifBankKrediKartiHesapOzeti.exe -
outlook_office_path 1 IoCs
Processes:
VakifBankKrediKartiHesapOzeti.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-2231940048-779848787-2990559741-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 VakifBankKrediKartiHesapOzeti.exe -
outlook_win_path 1 IoCs
Processes:
VakifBankKrediKartiHesapOzeti.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-2231940048-779848787-2990559741-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 VakifBankKrediKartiHesapOzeti.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\VakifBankKrediKartiHesapOzeti.exe"C:\Users\Admin\AppData\Local\Temp\VakifBankKrediKartiHesapOzeti.exe"1⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1812 -
C:\Users\Admin\AppData\Local\Temp\VakifBankKrediKartiHesapOzeti.exeC:\Users\Admin\AppData\Local\Temp\VakifBankKrediKartiHesapOzeti.exe2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
PID:1372
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
1KB
MD5159a40ccfd419bd60a20a1c278edaafd
SHA109bc35e46135b6b44c609fe6514ab7e2c8696a99
SHA25624487f4b6318683dcd81970e9f57fb45167575f687f7831a563176e20da657b6
SHA512b5c5b8c23479afff6b72c37c2cc1204c079ae003bae586d082d2b05acfdab8753fea78c5e53f692e4a45aba6746703d9ca99a2d0fa7bd88a7f35a910d1ad1ff3