Analysis
- max time kernel
149s - max time network
150s - platform
windows10-2004_x64 - resource
win10v2004-20240226-en - resource tags
arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system - submitted
01/04/2024, 15:42
Static task
static1
2 signatures
Behavioral task
behavioral1
Sample
73fe142254abec3aeaef375f0564d40a_JaffaCakes118.exe
Resource
win7-20240221-en
7 signatures
150 seconds
Behavioral task
behavioral2
Sample
73fe142254abec3aeaef375f0564d40a_JaffaCakes118.exe
Resource
win10v2004-20231215-en
4 signatures
150 seconds
Behavioral task
behavioral3
Sample
$PLUGINSDIR/yhjjbtf.dll
Resource
win7-20240221-en
7 signatures
150 seconds
Behavioral task
behavioral4
Sample
$PLUGINSDIR/yhjjbtf.dll
Resource
win10v2004-20240226-en
2 signatures
150 seconds
General
- Target $PLUGINSDIR/yhjjbtf.dll
- Size 33KB
- Sample240401-s5txaagf3x
- SHA256 520857c7a5bfaeebf0f39504ae85d32b7e153774e93cb2be486f9a5d35b76d05
- MD5 2109a0431e1e8fbce8007bc6dbdc8d2d
- SHA1 f85d1cfa01ca893063af01510115bc279da84c2a
- SHA512 a190901c467b65b18370aa3dbec9bb994294042fb78965b6baaf92a31fdc316912679a23f81f76a0d30f51c9c9ccbabcd58b0d420a1c6060508de1f0c0d320fb
- SSDEEP 384:173rOmBpuRkCafMEILJBJn0GMZEhE7flHeKCB5qktAX6KiAEHpMUK6rbT7:171YiCeIdBMZT7f5eL5XfLzMUKcbX
- MD5 SHA1 SHA512 SSDEEP
Score
3/10
Malware Config
Signatures
- Program crash 1 IoCs
pid pid_target Process procid_target 4416 2448 WerFault.exe 85 - Suspicious use of WriteProcessMemory 7 IoCs
description pid Process procid_target PID 2816 wrote to memory of 2448 2816 rundll32.exe 85 PID 2816 wrote to memory of 2448 2816 rundll32.exe 85 PID 2816 wrote to memory of 2448 2816 rundll32.exe 85 PID 2448 wrote to memory of 4900 2448 rundll32.exe 89 PID 2448 wrote to memory of 4900 2448 rundll32.exe 89 PID 2448 wrote to memory of 4900 2448 rundll32.exe 89 PID 2448 wrote to memory of 4900 2448 rundll32.exe 89
Processes
-
C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\yhjjbtf.dll,#11⤵
- Suspicious use of WriteProcessMemory
PID:2816 -
C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\yhjjbtf.dll,#12⤵
- Suspicious use of WriteProcessMemory
PID:2448 -
C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\yhjjbtf.dll,#13⤵PID:4900
-
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 2448 -s 7403⤵
- Program crash
PID:4416
-
-
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 428 -p 2448 -ip 24481⤵PID:2376