e3b42b1d66a2514e6e6eb0689b9b0a797d824510cab1754cabf6d92dba65a6a6

Analysis

max time kernel
119s
max time network
131s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
14/02/2024, 09:10 UTC

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General

Target

$PLUGINSDIR/HTTP_ASF_SOURCE.dll
Size

511KB
MD5

2ca0666cb7eebc4f31d1b1cd5567defa
SHA1

57937bc69d62e8405742137b94172b129274c77d
SHA256

5ccfce12fdeb592955cd14154446374a547864a6b5ef1a5a5d9cd801121a0128
SHA512

bac83324d390f961aec228ddee702a0709e9e59501500592e8fc5f30e0236719836b86c880e9cc90af3747c2b23dcce7ce1b7b29121740c82a0b9fb8fc086e41
SSDEEP

6144:xEBjCmsazwA6exhQWHb7Do9b2GRPKT1E9o5H4G/VmKEYTzKKAmKCetU0ub7lqE:w+m3P6exhQW77TiSECrYKfTmSrVqE

Score

1^/10

Malware Config

Signatures

Modifies registry class 21 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{1CA738D6-B6B5-4F25-B00B-113BAD14925C}\InprocServer32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{083863F1-70DE-11D0-BD40-00A0C911CE86}\Instance\{B999A9D1-931E-45C9-836B-90ED79072E41}\CLSID = "{B999A9D1-931E-45C9-836B-90ED79072E41}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{1CA738D6-B6B5-4F25-B00B-113BAD14925C}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{1CA738D6-B6B5-4F25-B00B-113BAD14925C}\Instance	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{1CA738D6-B6B5-4F25-B00B-113BAD14925C}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\$PLUGINSDIR\\HTTP_ASF_SOURCE.dll"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{1CA738D6-B6B5-4F25-B00B-113BAD14925C}\InprocServer32\ThreadingModel = "Both"	regsvr32.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{083863F1-70DE-11D0-BD40-00A0C911CE86}\Instance\{B999A9D1-931E-45C9-836B-90ED79072E41}\FilterData = 0200000000002000020000000000000030706933080000000000000001000000000000000000000030747933000000006000000070000000317069330800000000000000010000000000000000000000307479330000000080000000700000007669647300001000800000aa00389b71000000000000000000000000000000006175647300001000800000aa00389b71	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{1CA738D6-B6B5-4F25-B00B-113BAD14925C}\Instance\{1CA738D6-B6B5-4F25-B00B-113BAD14925C}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{1CA738D6-B6B5-4F25-B00B-113BAD14925C}\Instance\{1CA738D6-B6B5-4F25-B00B-113BAD14925C}\FriendlyName	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{1CA738D6-B6B5-4F25-B00B-113BAD14925C}\Instance\{1CA738D6-B6B5-4F25-B00B-113BAD14925C}\CLSID = "{1CA738D6-B6B5-4F25-B00B-113BAD14925C}"	regsvr32.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{1CA738D6-B6B5-4F25-B00B-113BAD14925C}\Instance\{1CA738D6-B6B5-4F25-B00B-113BAD14925C}\FilterData = 02000000000000000000000000000000	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{B999A9D1-931E-45C9-836B-90ED79072E41}\InprocServer32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{B999A9D1-931E-45C9-836B-90ED79072E41}\InprocServer32\ThreadingModel = "Both"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{B999A9D1-931E-45C9-836B-90ED79072E41}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{B999A9D1-931E-45C9-836B-90ED79072E41}\ = "zxb_http_asf_source"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{B999A9D1-931E-45C9-836B-90ED79072E41}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\$PLUGINSDIR\\HTTP_ASF_SOURCE.dll"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{1CA738D6-B6B5-4F25-B00B-113BAD14925C}\	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{083863F1-70DE-11D0-BD40-00A0C911CE86}\Instance\{B999A9D1-931E-45C9-836B-90ED79072E41}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{083863F1-70DE-11D0-BD40-00A0C911CE86}\Instance\{B999A9D1-931E-45C9-836B-90ED79072E41}\FriendlyName = "zxb_http_asf_source"	regsvr32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2092 wrote to memory of 1112	2092	regsvr32.exe	27
PID 2092 wrote to memory of 1112	2092	regsvr32.exe	27
PID 2092 wrote to memory of 1112	2092	regsvr32.exe	27
PID 2092 wrote to memory of 1112	2092	regsvr32.exe	27
PID 2092 wrote to memory of 1112	2092	regsvr32.exe	27
PID 2092 wrote to memory of 1112	2092	regsvr32.exe	27
PID 2092 wrote to memory of 1112	2092	regsvr32.exe	27

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\HTTP_ASF_SOURCE.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:2092
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\HTTP_ASF_SOURCE.dll
  2⤵
  - Modifies registry class
  PID:1112

Network

MITRE ATT&CK Matrix

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Downloads

memory/1112-0-0x0000000000A00000-0x0000000000B83000-memory.dmp

Filesize
1.5MB

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General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix

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