Windows 7 deprecation
Windows 7 will be removed from tria.ge on 2025-03-31
Analysis
-
max time kernel
122s -
max time network
123s -
platform
windows7_x64 -
resource
win7-20240221-en -
resource tags
arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system -
submitted
07/05/2024, 05:07
Static task
static1
Behavioral task
behavioral1
Sample
2024-05-07_e9dc99295c56c46149845977c93878be_bkransomware.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
2024-05-07_e9dc99295c56c46149845977c93878be_bkransomware.exe
Resource
win10v2004-20240419-en
General
-
Target
2024-05-07_e9dc99295c56c46149845977c93878be_bkransomware.exe
-
Size
131KB
-
MD5
e9dc99295c56c46149845977c93878be
-
SHA1
58889a3ad3eb442bc9d03ebb77dd82d7ebc55e75
-
SHA256
8494d8b38ccf2a80a6c5079d8d9d8106c2d151f3fcffd34b350f8f3539876359
-
SHA512
4ba0fd2229619f9c5c29df76fc0ac0ef34fbc87a0ff4f1be5d37eef9f41672b4175d1df6afe67acbd2fdde2bb27b154014e7c8cd3e14bd3accdbc2df14a7d8d0
-
SSDEEP
3072:ZhpAyazIlyazTvJh4k+VajyPghRhqaT8D:hZMazLJeNEwcRhqJD
Malware Config
Signatures
-
Executes dropped EXE 2 IoCs
pid Process 2412 raAZblM2DBm1dUE.exe 1192 CTS.exe -
Loads dropped DLL 2 IoCs
pid Process 2128 2024-05-07_e9dc99295c56c46149845977c93878be_bkransomware.exe 2128 2024-05-07_e9dc99295c56c46149845977c93878be_bkransomware.exe -
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
-
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\CTS = "C:\\Windows\\CTS.exe" 2024-05-07_e9dc99295c56c46149845977c93878be_bkransomware.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\CTS = "C:\\Windows\\CTS.exe" CTS.exe -
Drops file in Windows directory 2 IoCs
description ioc Process File created C:\Windows\CTS.exe 2024-05-07_e9dc99295c56c46149845977c93878be_bkransomware.exe File created C:\Windows\CTS.exe CTS.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 2128 2024-05-07_e9dc99295c56c46149845977c93878be_bkransomware.exe Token: SeDebugPrivilege 1192 CTS.exe -
Suspicious use of WriteProcessMemory 8 IoCs
description pid Process procid_target PID 2128 wrote to memory of 2412 2128 2024-05-07_e9dc99295c56c46149845977c93878be_bkransomware.exe 28 PID 2128 wrote to memory of 2412 2128 2024-05-07_e9dc99295c56c46149845977c93878be_bkransomware.exe 28 PID 2128 wrote to memory of 2412 2128 2024-05-07_e9dc99295c56c46149845977c93878be_bkransomware.exe 28 PID 2128 wrote to memory of 2412 2128 2024-05-07_e9dc99295c56c46149845977c93878be_bkransomware.exe 28 PID 2128 wrote to memory of 1192 2128 2024-05-07_e9dc99295c56c46149845977c93878be_bkransomware.exe 29 PID 2128 wrote to memory of 1192 2128 2024-05-07_e9dc99295c56c46149845977c93878be_bkransomware.exe 29 PID 2128 wrote to memory of 1192 2128 2024-05-07_e9dc99295c56c46149845977c93878be_bkransomware.exe 29 PID 2128 wrote to memory of 1192 2128 2024-05-07_e9dc99295c56c46149845977c93878be_bkransomware.exe 29
Processes
-
C:\Users\Admin\AppData\Local\Temp\2024-05-07_e9dc99295c56c46149845977c93878be_bkransomware.exe"C:\Users\Admin\AppData\Local\Temp\2024-05-07_e9dc99295c56c46149845977c93878be_bkransomware.exe"1⤵
- Loads dropped DLL
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2128 -
C:\Users\Admin\AppData\Local\Temp\raAZblM2DBm1dUE.exeC:\Users\Admin\AppData\Local\Temp\raAZblM2DBm1dUE.exe2⤵
- Executes dropped EXE
PID:2412
-
-
C:\Windows\CTS.exe"C:\Windows\CTS.exe"2⤵
- Executes dropped EXE
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
PID:1192
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
-
Filesize
71KB
MD566df4ffab62e674af2e75b163563fc0b
SHA1dec8a197312e41eeb3cfef01cb2a443f0205cd6e
SHA256075a6eecd8da1795532318f9cf880efe42461f9464d63f74deb271d33110f163
SHA5121588dd78e6e8972013c40cdb6acfb84c8df7b081197233ce621904b645356c805d0424bb93dd46c55834dc47d9ff39ee1323cf8e670841b3fff24ab98ba87f25
-
Filesize
60KB
MD57b112b1fb864c90ec5b65eab21cb40b8
SHA1e7b73361f722fc7cbb93ef98a8d26e34f4d49767
SHA256751941b4e09898c31791efeb5f90fc7367c89831d4a98637ed505e40763e287b
SHA512bf9cdeff39cc4fa48457c55ad02e3856b5b27998535aed801a469252f01e7676462332fa3f93877753e963d037472f615c1fc5fc2e996316621b4e0a180cb5f5