Overview
overview
8Static
static
37zxa.dll
windows7-x64
37zxa.dll
windows10-2004-x64
3BLOCKBUSTER.dll
windows7-x64
1BLOCKBUSTER.dll
windows10-2004-x64
1BLOCKBUSTER.exe
windows7-x64
8BLOCKBUSTER.exe
windows10-2004-x64
8hcx.dll
windows7-x64
3hcx.dll
windows10-2004-x64
3unrar.dll
windows7-x64
3unrar.dll
windows10-2004-x64
3Analysis
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max time kernel
140s -
max time network
148s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
01-11-2024 16:58
Static task
static1
Behavioral task
behavioral1
Sample
7zxa.dll
Resource
win7-20240708-en
Behavioral task
behavioral2
Sample
7zxa.dll
Resource
win10v2004-20241007-en
Behavioral task
behavioral3
Sample
BLOCKBUSTER.dll
Resource
win7-20241010-en
Behavioral task
behavioral4
Sample
BLOCKBUSTER.dll
Resource
win10v2004-20241007-en
Behavioral task
behavioral5
Sample
BLOCKBUSTER.exe
Resource
win7-20241023-en
Behavioral task
behavioral6
Sample
BLOCKBUSTER.exe
Resource
win10v2004-20241007-en
Behavioral task
behavioral7
Sample
hcx.dll
Resource
win7-20240708-en
Behavioral task
behavioral8
Sample
hcx.dll
Resource
win10v2004-20241007-en
Behavioral task
behavioral9
Sample
unrar.dll
Resource
win7-20241010-en
Behavioral task
behavioral10
Sample
unrar.dll
Resource
win10v2004-20241007-en
General
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Target
unrar.dll
-
Size
174KB
-
MD5
4289541be75e95bcfff04857f7144d87
-
SHA1
5ec8085e30d75ec18b8b1e193b3d5aa1648b0d2e
-
SHA256
2631fcdf920610557736549e27939b9c760743a2cddec0b2c2254cfa40003fb0
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SHA512
3137a7790de74a6413aca6c80fd57288bcc30a7df3a416f3c6e8666041cd47a9609136c91405eee23224c4ae67c9aebbba4dd9c4e5786b09b83318755b4a55fd
-
SSDEEP
3072:4Jb18kAn0/QVt5ch1fIBNXaQpZj1JtmosqpdFBVhz3s5xqW3W5/9rSgvWFI:g58kA0/QVPch1QXK6HmosyBhY62Y9Lee
Malware Config
Signatures
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Program crash 1 IoCs
pid pid_target Process procid_target 4832 1364 WerFault.exe 85 -
System Location Discovery: System Language Discovery 1 TTPs 1 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language rundll32.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 4572 wrote to memory of 1364 4572 rundll32.exe 85 PID 4572 wrote to memory of 1364 4572 rundll32.exe 85 PID 4572 wrote to memory of 1364 4572 rundll32.exe 85
Processes
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C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\unrar.dll,#11⤵
- Suspicious use of WriteProcessMemory
PID:4572 -
C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\unrar.dll,#12⤵
- System Location Discovery: System Language Discovery
PID:1364 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 1364 -s 6123⤵
- Program crash
PID:4832
-
-
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 368 -p 1364 -ip 13641⤵PID:3164