8b63905feb921736e628bbbdae1491c6638dbf953ed693419c9e23509717c68b | Triage

Analysis

max time kernel
143s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
27-01-2024 09:56

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General

Target

79efafe20cfd56224bac2d577b6e4a00.dll
Size

43KB
MD5

79efafe20cfd56224bac2d577b6e4a00
SHA1

118854c1eedf70e30afc4cd00b440c75e0f28972
SHA256

8b63905feb921736e628bbbdae1491c6638dbf953ed693419c9e23509717c68b
SHA512

6e02298e79750ea5ddf338d34e63a69c4557c7a23fdd225f0386561f9a9d87a716f02bc4a18af70b9e8565011078e2e2a863a7b0fd3e8d83ce0cef862524ce6f
SSDEEP

768:ynSyYCNVPnf3cBTD+O+tTRZSw1sJt8bQIN:sHJcf+OWRZS9WfN

Score

7^/10

upx

Malware Config

Signatures

UPX packed file 1 IoCs

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

resource	yara_rule
behavioral2/memory/3580-0-0x0000000020000000-0x0000000020020000-memory.dmp	upx

Modifies registry class 12 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{850C7964-9320-4055-BE11-7D7B562A6417}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{850C7964-9320-4055-BE11-7D7B562A6417}\ = "Helper Class"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{850C7964-9320-4055-BE11-7D7B562A6417}\ProgID	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{850C7964-9320-4055-BE11-7D7B562A6417}\ProgID\ = "Helper.Helper.1"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{850C7964-9320-4055-BE11-7D7B562A6417}\TypeLib	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{850C7964-9320-4055-BE11-7D7B562A6417}\TypeLib\ = "{C76aC303-ADB0-4f4b-BBAA-D037694D3590}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{850C7964-9320-4055-BE11-7D7B562A6417}\InprocServer32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{850C7964-9320-4055-BE11-7D7B562A6417}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\79efafe20cfd56224bac2d577b6e4a00.dll"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{850C7964-9320-4055-BE11-7D7B562A6417}\InprocServer32\ThreadingModel = "Apartment"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{850C7964-9320-4055-BE11-7D7B562A6417}\Programmable	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{850C7964-9320-4055-BE11-7D7B562A6417}\VersionIndependentProgID	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{850C7964-9320-4055-BE11-7D7B562A6417}\VersionIndependentProgID\ = "Helper.Helper.1"	regsvr32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 888 wrote to memory of 3580	888	regsvr32.exe	88
PID 888 wrote to memory of 3580	888	regsvr32.exe	88
PID 888 wrote to memory of 3580	888	regsvr32.exe	88

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\79efafe20cfd56224bac2d577b6e4a00.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:888
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\79efafe20cfd56224bac2d577b6e4a00.dll
  2⤵
  - Modifies registry class
  PID:3580

Network

MITRE ATT&CK Matrix

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Downloads

memory/3580-0-0x0000000020000000-0x0000000020020000-memory.dmp

Filesize
128KB

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