8b63905feb921736e628bbbdae1491c6638dbf953ed693419c9e23509717c68b | Triage

Analysis

max time kernel
119s
max time network
122s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-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
behavioral1/memory/2476-0-0x0000000020000000-0x0000000020020000-memory.dmp	upx

Modifies registry class 12 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{850C7964-9320-4055-BE11-7D7B562A6417}\Programmable	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\ThreadingModel = "Apartment"	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
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
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
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

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2064 wrote to memory of 2476	2064	regsvr32.exe	28
PID 2064 wrote to memory of 2476	2064	regsvr32.exe	28
PID 2064 wrote to memory of 2476	2064	regsvr32.exe	28
PID 2064 wrote to memory of 2476	2064	regsvr32.exe	28
PID 2064 wrote to memory of 2476	2064	regsvr32.exe	28
PID 2064 wrote to memory of 2476	2064	regsvr32.exe	28
PID 2064 wrote to memory of 2476	2064	regsvr32.exe	28

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\79efafe20cfd56224bac2d577b6e4a00.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:2064
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\79efafe20cfd56224bac2d577b6e4a00.dll
  2⤵
  - Modifies registry class
  PID:2476

Network

MITRE ATT&CK Matrix

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Downloads

memory/2476-0-0x0000000020000000-0x0000000020020000-memory.dmp

Filesize
128KB

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