Windows 7 deprecation
Windows 7 will be removed from tria.ge on 2025-03-31
Analysis
-
max time kernel
137s -
max time network
146s -
platform
windows10-2004_x64 -
resource
win10v2004-20240226-en -
resource tags
arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system -
submitted
04/05/2024, 10:25
Static task
static1
Behavioral task
behavioral1
Sample
2024-05-04_0b9fdec44c17afee1305cfba0a5aa20b_bkransomware.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
2024-05-04_0b9fdec44c17afee1305cfba0a5aa20b_bkransomware.exe
Resource
win10v2004-20240226-en
General
-
Target
2024-05-04_0b9fdec44c17afee1305cfba0a5aa20b_bkransomware.exe
-
Size
214KB
-
MD5
0b9fdec44c17afee1305cfba0a5aa20b
-
SHA1
0e6fa5d6d451c3b6644a0ec5b77a5ea78ce7eb9f
-
SHA256
99acb0153f756f96c418e9e5b14d3148c3c9faba157786c2db199ac44be67c2c
-
SHA512
aa0ef5df434940de31bd8f8c1b6943875d4f2445c48692c1b6f15c816fafdff7b9594324b769a2a74b6aa9d11c4220c34f1ce5dcc8fa68aa320f67d0e4aa7202
-
SSDEEP
3072:ZhpAyazIlyazTmAvJMAgcayFHoh7YgB3u+2IcqUfN6eaTxvwGXVxuA3Yip:hZMazDMAFtFIWglu+kfNXaTGIeA3Yip
Malware Config
Signatures
-
Executes dropped EXE 2 IoCs
pid Process 3472 eIByJGvIrRVt3Bn.exe 2780 CTS.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" 2024-05-04_0b9fdec44c17afee1305cfba0a5aa20b_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 2024-05-04_0b9fdec44c17afee1305cfba0a5aa20b_bkransomware.exe File created C:\Windows\CTS.exe CTS.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 4764 2024-05-04_0b9fdec44c17afee1305cfba0a5aa20b_bkransomware.exe Token: SeDebugPrivilege 2780 CTS.exe -
Suspicious use of WriteProcessMemory 5 IoCs
description pid Process procid_target PID 4764 wrote to memory of 3472 4764 2024-05-04_0b9fdec44c17afee1305cfba0a5aa20b_bkransomware.exe 91 PID 4764 wrote to memory of 3472 4764 2024-05-04_0b9fdec44c17afee1305cfba0a5aa20b_bkransomware.exe 91 PID 4764 wrote to memory of 2780 4764 2024-05-04_0b9fdec44c17afee1305cfba0a5aa20b_bkransomware.exe 93 PID 4764 wrote to memory of 2780 4764 2024-05-04_0b9fdec44c17afee1305cfba0a5aa20b_bkransomware.exe 93 PID 4764 wrote to memory of 2780 4764 2024-05-04_0b9fdec44c17afee1305cfba0a5aa20b_bkransomware.exe 93
Processes
-
C:\Users\Admin\AppData\Local\Temp\2024-05-04_0b9fdec44c17afee1305cfba0a5aa20b_bkransomware.exe"C:\Users\Admin\AppData\Local\Temp\2024-05-04_0b9fdec44c17afee1305cfba0a5aa20b_bkransomware.exe"1⤵
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4764 -
C:\Users\Admin\AppData\Local\Temp\eIByJGvIrRVt3Bn.exeC:\Users\Admin\AppData\Local\Temp\eIByJGvIrRVt3Bn.exe2⤵
- Executes dropped EXE
PID:3472
-
-
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:2780
-
-
C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=5164 --field-trial-handle=3084,i,4016110471176367543,14287608422419064331,262144 --variations-seed-version /prefetch:81⤵PID:2300
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
-
Filesize
789KB
MD5897a943e2762e153ca3a66555c85092b
SHA1875b5ac29b1bc85bb3120831482d76e9ed756669
SHA256bcc58a97c052cbb5d4d47dc80b8411b862fd4e3b2426e7d4161576921f7cf83b
SHA512042a08a989e2ee20cdc0a83c0e41e637fc3bfc454e972ad58a46d1c86d1bb3d6fae43788eaac08efac9e08cb31ce15c33a1550ad632b31a34b02e723d38eea88
-
Filesize
143KB
MD52fdb371d45181dff59577110ba1064e2
SHA142a5833cb0ac90e38d734d1327bb3f7c7a6aa453
SHA25680d7ec8ce3913d81ea5d4f304b8609e56f0e49778c52af9279e742ea54f4a155
SHA51252982041ba9ca552b90b79b251501ec6c33c5251d09ca9969a1b179af2ec17aca6eb81db6e588e12751bcea04208e1da8d5a754a979dd98ceb3f50780aadea20
-
Filesize
71KB
MD566df4ffab62e674af2e75b163563fc0b
SHA1dec8a197312e41eeb3cfef01cb2a443f0205cd6e
SHA256075a6eecd8da1795532318f9cf880efe42461f9464d63f74deb271d33110f163
SHA5121588dd78e6e8972013c40cdb6acfb84c8df7b081197233ce621904b645356c805d0424bb93dd46c55834dc47d9ff39ee1323cf8e670841b3fff24ab98ba87f25