Analysis
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max time kernel
121s -
max time network
123s -
platform
windows7_x64 -
resource
win7-20230712-en -
resource tags
arch:x64arch:x86image:win7-20230712-enlocale:en-usos:windows7-x64system -
submitted
07-08-2023 20:43
Static task
static1
Behavioral task
behavioral1
Sample
rufus.exe
Resource
win7-20230712-en
windows7-x64
5 signatures
150 seconds
Behavioral task
behavioral2
Sample
rufus.exe
Resource
win10v2004-20230703-en
windows10-2004-x64
13 signatures
150 seconds
General
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Target
rufus.exe
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Size
1.2MB
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MD5
9b46fd720844076511d94496aac2b47f
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SHA1
5be995e55f304e753116c5d38bac665a51539ebd
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SHA256
9635c91adf7f8ee699b4b1b63d7342f3c732dfea9896cc0a67d9789b08577b5f
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SHA512
2eb03c14a9824fc941073433921a984f34d82025544fc933bcdbc0ba4eb031e827eea178297cd3af9ad56cd806acbea5d69b9faa033a56c16b8e01d608b18730
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SSDEEP
24576:oU1QcXKGCqN80AkGDU77N973AiZza4Wm7ZgqvenydUCAxik:oUNxH7N9zAV6YxP
Score
10/10
Malware Config
Signatures
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Black Basta
A ransomware family targeting Windows and Linux ESXi first seen in February 2022.
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Black Basta payload 6 IoCs
resource yara_rule behavioral1/memory/620-58-0x0000000000070000-0x0000000000102000-memory.dmp family_blackbasta behavioral1/memory/620-59-0x0000000000070000-0x0000000000102000-memory.dmp family_blackbasta behavioral1/memory/620-60-0x0000000000070000-0x0000000000102000-memory.dmp family_blackbasta behavioral1/memory/620-63-0x0000000000070000-0x0000000000102000-memory.dmp family_blackbasta behavioral1/memory/620-68-0x0000000000070000-0x0000000000102000-memory.dmp family_blackbasta behavioral1/memory/620-72-0x0000000000070000-0x0000000000102000-memory.dmp family_blackbasta -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 2044 set thread context of 620 2044 rufus.exe 28 -
Program crash 1 IoCs
pid pid_target Process procid_target 2292 620 WerFault.exe 28 -
Suspicious use of WriteProcessMemory 15 IoCs
description pid Process procid_target PID 2044 wrote to memory of 620 2044 rufus.exe 28 PID 2044 wrote to memory of 620 2044 rufus.exe 28 PID 2044 wrote to memory of 620 2044 rufus.exe 28 PID 2044 wrote to memory of 620 2044 rufus.exe 28 PID 2044 wrote to memory of 620 2044 rufus.exe 28 PID 2044 wrote to memory of 620 2044 rufus.exe 28 PID 2044 wrote to memory of 620 2044 rufus.exe 28 PID 2044 wrote to memory of 620 2044 rufus.exe 28 PID 2044 wrote to memory of 620 2044 rufus.exe 28 PID 2044 wrote to memory of 620 2044 rufus.exe 28 PID 2044 wrote to memory of 620 2044 rufus.exe 28 PID 620 wrote to memory of 2292 620 rufus.exe 30 PID 620 wrote to memory of 2292 620 rufus.exe 30 PID 620 wrote to memory of 2292 620 rufus.exe 30 PID 620 wrote to memory of 2292 620 rufus.exe 30
Processes
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C:\Users\Admin\AppData\Local\Temp\rufus.exe"C:\Users\Admin\AppData\Local\Temp\rufus.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2044 -
C:\Users\Admin\AppData\Local\Temp\rufus.exeOMC_BC2⤵
- Suspicious use of WriteProcessMemory
PID:620 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 620 -s 1643⤵
- Program crash
PID:2292
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