d4164b1dab1337e28d3ce097a32b8635c893e1acaaf7136e745b90c44ee2cf05

Analysis

max time kernel
150s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240611-en
resource tags

arch:x64arch:x86image:win10v2004-20240611-enlocale:en-usos:windows10-2004-x64system
submitted
30-06-2024 02:26

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General

Target

wrapper.dll
Size

655KB
MD5

e1656d25f53820e291e60093f8e8bc41
SHA1

1407ef55c30de78b3b5f3e4a0042281ae9d55831
SHA256

367fda11631296caef0acad26cfed7d0934475eacb8349c1c209a575bf547cb8
SHA512

5407d8605a1405759f824e10bd748671d057eb477b8feed5772e62fa55f67df10ed643a7a7f90562db3782461291b61b452d679453888d065e0c8bafb8791e7f
SSDEEP

12288:3lTILolEZuvuVJBK9ONOkx2PAUv0vWPdcef6WKqC1bBTzBS0ncQ:3lTI9nhOkUIM0qNf6WKNJB1cQ

Score

9^/10

upx

Malware Config

Signatures

UPX dump on OEP (original entry point) 2 IoCs

Processes:

resource yara_rule

behavioral20/memory/4692-2-0x0000000002990000-0x0000000002B49000-memory.dmp UPX
behavioral20/memory/4692-1-0x0000000002990000-0x0000000002B49000-memory.dmp UPX
UPX packed file 2 IoCs
Detects executables packed with UPX/modified UPX open source packer.
upx

Processes:

resource yara_rule

behavioral20/memory/4692-2-0x0000000002990000-0x0000000002B49000-memory.dmp upx
behavioral20/memory/4692-1-0x0000000002990000-0x0000000002B49000-memory.dmp upx
Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

3968 4692 WerFault.exe rundll32.exe

resource	yara_rule
behavioral20/memory/4692-2-0x0000000002990000-0x0000000002B49000-memory.dmp	UPX
behavioral20/memory/4692-1-0x0000000002990000-0x0000000002B49000-memory.dmp	UPX

resource	yara_rule
behavioral20/memory/4692-2-0x0000000002990000-0x0000000002B49000-memory.dmp	upx
behavioral20/memory/4692-1-0x0000000002990000-0x0000000002B49000-memory.dmp	upx

pid	pid_target	process	target process
3968	4692	WerFault.exe	rundll32.exe

Modifies registry class 3 IoCs

Processes:

rundll32.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.key	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.key\	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.key\ = "regfile"	rundll32.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

rundll32.exe

description	pid	process	target process
PID 4620 wrote to memory of 4692	4620	rundll32.exe	rundll32.exe
PID 4620 wrote to memory of 4692	4620	rundll32.exe	rundll32.exe
PID 4620 wrote to memory of 4692	4620	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\wrapper.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:4620

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\wrapper.dll,#1
2⤵
- Modifies registry class
PID:4692

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4692 -s 700
3⤵
- Program crash
PID:3968

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4692 -ip 4692
1⤵
PID:2412

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

memory/4692-0-0x0000000010000000-0x000000001017D000-memory.dmp

Filesize
1.5MB

Download
memory/4692-2-0x0000000002990000-0x0000000002B49000-memory.dmp

Filesize
1.7MB

Download
memory/4692-18-0x0000000002E20000-0x0000000002E25000-memory.dmp

Filesize
20KB

Download
memory/4692-17-0x0000000002C50000-0x0000000002C85000-memory.dmp

Filesize
212KB

Download
memory/4692-16-0x0000000002E20000-0x0000000002E21000-memory.dmp

Filesize
4KB

Download
memory/4692-15-0x0000000002E20000-0x0000000002E21000-memory.dmp

Filesize
4KB

Download
memory/4692-14-0x0000000002E20000-0x0000000002E21000-memory.dmp

Filesize
4KB

Download
memory/4692-13-0x0000000002E20000-0x0000000002E21000-memory.dmp

Filesize
4KB

Download
memory/4692-12-0x0000000002E20000-0x0000000002E21000-memory.dmp

Filesize
4KB

Download
memory/4692-11-0x0000000002E20000-0x0000000002E21000-memory.dmp

Filesize
4KB

Download
memory/4692-25-0x0000000002E40000-0x0000000002E41000-memory.dmp

Filesize
4KB

Download
memory/4692-24-0x00000000012C0000-0x00000000012C1000-memory.dmp

Filesize
4KB

Download
memory/4692-23-0x00000000012B0000-0x00000000012B1000-memory.dmp

Filesize
4KB

Download
memory/4692-22-0x0000000002E30000-0x0000000002E31000-memory.dmp

Filesize
4KB

Download
memory/4692-21-0x0000000002E10000-0x0000000002E11000-memory.dmp

Filesize
4KB

Download
memory/4692-20-0x0000000002E80000-0x0000000002E81000-memory.dmp

Filesize
4KB

Download
memory/4692-19-0x0000000002E70000-0x0000000002E71000-memory.dmp

Filesize
4KB

Download
memory/4692-10-0x0000000002E20000-0x0000000002E21000-memory.dmp

Filesize
4KB

Download
memory/4692-9-0x0000000002E20000-0x0000000002E21000-memory.dmp

Filesize
4KB

Download
memory/4692-8-0x0000000002E20000-0x0000000002E21000-memory.dmp

Filesize
4KB

Download
memory/4692-7-0x0000000002E20000-0x0000000002E21000-memory.dmp

Filesize
4KB

Download
memory/4692-6-0x0000000002E20000-0x0000000002E21000-memory.dmp

Filesize
4KB

Download
memory/4692-5-0x0000000002E20000-0x0000000002E21000-memory.dmp

Filesize
4KB

Download
memory/4692-4-0x0000000002E20000-0x0000000002E21000-memory.dmp

Filesize
4KB

Download
memory/4692-3-0x0000000002E20000-0x0000000002F20000-memory.dmp

Filesize
1024KB

Download
memory/4692-1-0x0000000002990000-0x0000000002B49000-memory.dmp

Filesize
1.7MB

Download
memory/4692-26-0x0000000010000000-0x000000001017D000-memory.dmp

Filesize
1.5MB

Download
memory/4692-28-0x0000000002C50000-0x0000000002C85000-memory.dmp

Filesize
212KB

Download