923cb78fac0f3473f15afabfbccf42bcfa54a80cfd4ca02a36d0516eceea459d | Triage

Analysis

max time kernel
140s
max time network
119s
platform
windows7_x64
resource
win7-20231129-en
resource tags

arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
submitted
06-01-2024 10:16

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General

Target

5f46c6671fc0a4ce2a8f62148ba76b93.dll
Size

1.1MB
MD5

5f46c6671fc0a4ce2a8f62148ba76b93
SHA1

a5a06318aa4d36026ad7e8e242a0cb1ea425cae4
SHA256

923cb78fac0f3473f15afabfbccf42bcfa54a80cfd4ca02a36d0516eceea459d
SHA512

874c6e047f2b19c77d41fbeda2196a14596cb6ba031ecc744e65f9893de2011626c1e1bd9d74cb79ad36b22018a687f7da2dcbac6cf47ae18934b04705a117e6
SSDEEP

24576:viHKy2FieN5CpRni2lpV0ihzjcMf18OI3RSe:vOKy2FieN5CpRdBzjcMf6OI3

Score

7^/10

upx

Malware Config

Signatures

UPX packed file 3 IoCs

Detects executables packed with UPX/modified UPX open source packer.

Processes:

resource	yara_rule
behavioral1/memory/1996-0-0x0000000002000000-0x00000000023F8000-memory.dmp	upx
behavioral1/memory/1996-2-0x0000000002000000-0x00000000023F8000-memory.dmp	upx
behavioral1/memory/1996-1-0x0000000002000000-0x00000000023F8000-memory.dmp	upx

Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

2364 1996 WerFault.exe rundll32.exe

Suspicious use of WriteProcessMemory 11 IoCs

Processes:

rundll32.exerundll32.exe

description	pid	process	target process
PID 2356 wrote to memory of 1996	2356	rundll32.exe	rundll32.exe
PID 2356 wrote to memory of 1996	2356	rundll32.exe	rundll32.exe
PID 2356 wrote to memory of 1996	2356	rundll32.exe	rundll32.exe
PID 2356 wrote to memory of 1996	2356	rundll32.exe	rundll32.exe
PID 2356 wrote to memory of 1996	2356	rundll32.exe	rundll32.exe
PID 2356 wrote to memory of 1996	2356	rundll32.exe	rundll32.exe
PID 2356 wrote to memory of 1996	2356	rundll32.exe	rundll32.exe
PID 1996 wrote to memory of 2364	1996	rundll32.exe	WerFault.exe
PID 1996 wrote to memory of 2364	1996	rundll32.exe	WerFault.exe
PID 1996 wrote to memory of 2364	1996	rundll32.exe	WerFault.exe
PID 1996 wrote to memory of 2364	1996	rundll32.exe	WerFault.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\5f46c6671fc0a4ce2a8f62148ba76b93.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2356

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\5f46c6671fc0a4ce2a8f62148ba76b93.dll,#1
2⤵
- Suspicious use of WriteProcessMemory
PID:1996

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 1996 -s 296
3⤵
- Program crash
PID:2364

MITRE ATT&CK Matrix

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Downloads

memory/1996-0-0x0000000002000000-0x00000000023F8000-memory.dmp

Filesize
4.0MB

Download
memory/1996-3-0x0000000002000000-0x00000000023F8000-memory.dmp

Filesize
4.0MB

Download
memory/1996-2-0x0000000002000000-0x00000000023F8000-memory.dmp

Filesize
4.0MB

Download
memory/1996-1-0x0000000002000000-0x00000000023F8000-memory.dmp

Filesize
4.0MB

Download