Analysis
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max time kernel
120s -
max time network
148s -
platform
windows7_x64 -
resource
win7-20231023-en -
resource tags
arch:x64arch:x86image:win7-20231023-enlocale:en-usos:windows7-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 3 IoCs
Processes:
resource yara_rule behavioral1/memory/2968-46-0x0000000140000000-0x0000000140022000-memory.dmp family_snakekeylogger behavioral1/memory/2968-49-0x0000000140000000-0x0000000140022000-memory.dmp family_snakekeylogger behavioral1/memory/2968-54-0x000000001BCC0000-0x000000001BD40000-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-1-5-21-2085049433-1067986815-1244098655-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 VakifBankKrediKartiHesapOzeti.exe Key opened \REGISTRY\USER\S-1-5-21-2085049433-1067986815-1244098655-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 VakifBankKrediKartiHesapOzeti.exe Key opened \REGISTRY\USER\S-1-5-21-2085049433-1067986815-1244098655-1000\Software\Microsoft\Office\15.0\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-1-5-21-2085049433-1067986815-1244098655-1000\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 6 checkip.dyndns.org -
Suspicious use of SetThreadContext 1 IoCs
Processes:
VakifBankKrediKartiHesapOzeti.exedescription pid process target process PID 2316 set thread context of 2968 2316 VakifBankKrediKartiHesapOzeti.exe VakifBankKrediKartiHesapOzeti.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
VakifBankKrediKartiHesapOzeti.exepid process 2968 VakifBankKrediKartiHesapOzeti.exe 2968 VakifBankKrediKartiHesapOzeti.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
Processes:
VakifBankKrediKartiHesapOzeti.exeVakifBankKrediKartiHesapOzeti.exedescription pid process Token: SeDebugPrivilege 2316 VakifBankKrediKartiHesapOzeti.exe Token: SeDebugPrivilege 2968 VakifBankKrediKartiHesapOzeti.exe -
Suspicious use of WriteProcessMemory 7 IoCs
Processes:
VakifBankKrediKartiHesapOzeti.exedescription pid process target process PID 2316 wrote to memory of 2968 2316 VakifBankKrediKartiHesapOzeti.exe VakifBankKrediKartiHesapOzeti.exe PID 2316 wrote to memory of 2968 2316 VakifBankKrediKartiHesapOzeti.exe VakifBankKrediKartiHesapOzeti.exe PID 2316 wrote to memory of 2968 2316 VakifBankKrediKartiHesapOzeti.exe VakifBankKrediKartiHesapOzeti.exe PID 2316 wrote to memory of 2968 2316 VakifBankKrediKartiHesapOzeti.exe VakifBankKrediKartiHesapOzeti.exe PID 2316 wrote to memory of 2968 2316 VakifBankKrediKartiHesapOzeti.exe VakifBankKrediKartiHesapOzeti.exe PID 2316 wrote to memory of 2968 2316 VakifBankKrediKartiHesapOzeti.exe VakifBankKrediKartiHesapOzeti.exe PID 2316 wrote to memory of 2968 2316 VakifBankKrediKartiHesapOzeti.exe VakifBankKrediKartiHesapOzeti.exe -
outlook_office_path 1 IoCs
Processes:
VakifBankKrediKartiHesapOzeti.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-2085049433-1067986815-1244098655-1000\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-1-5-21-2085049433-1067986815-1244098655-1000\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:2316 -
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:2968
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
61KB
MD5f3441b8572aae8801c04f3060b550443
SHA14ef0a35436125d6821831ef36c28ffaf196cda15
SHA2566720349e7d82ee0a8e73920d3c2b7cb2912d9fcf2edb6fd98f2f12820158b0bf
SHA5125ba01ba421b50030e380ae6bbcd2f681f2a91947fe7fedb3c8e6b5f24dce9517abf57b1cf26cc6078d4bb53bde6fcfb2561591337c841f8f2cb121a3d71661b9
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Filesize
163KB
MD59441737383d21192400eca82fda910ec
SHA1725e0d606a4fc9ba44aa8ffde65bed15e65367e4
SHA256bc3a6e84e41faeb57e7c21aa3b60c2a64777107009727c5b7c0ed8fe658909e5
SHA5127608dd653a66cd364392a78d4711b48d1707768d36996e4d38871c6843b5714e1d7da4b4cc6db969e6000cfa182bcb74216ef6823d1063f036fc5c3413fb8dcf