18d6a0ae41aa38227d3638eb1e8677753cadd1b5fa6b14e0ca05e18240c9a2b8

Analysis

max time kernel
135s
max time network
147s
platform
windows10-2004_x64
resource
win10v2004-20240709-en
resource tags

arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system
submitted
25/07/2024, 18:28

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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

3^/10

discovery

Malware Config

Signatures

System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	regsvr32.exe

Modifies registry class 21 IoCs

description	ioc	Process
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	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}\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
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1CA738D6-B6B5-4F25-B00B-113BAD14925C}\InprocServer32\ThreadingModel = "Both"	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
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{B999A9D1-931E-45C9-836B-90ED79072E41}\InprocServer32	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\CLSID\{1CA738D6-B6B5-4F25-B00B-113BAD14925C}\Instance	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\{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}\	regsvr32.exe
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\{1CA738D6-B6B5-4F25-B00B-113BAD14925C}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\$PLUGINSDIR\\HTTP_ASF_SOURCE.dll"	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}\CLSID = "{B999A9D1-931E-45C9-836B-90ED79072E41}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1CA738D6-B6B5-4F25-B00B-113BAD14925C}\Instance\{1CA738D6-B6B5-4F25-B00B-113BAD14925C}	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

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 1080 wrote to memory of 3380	1080	regsvr32.exe	85
PID 1080 wrote to memory of 3380	1080	regsvr32.exe	85
PID 1080 wrote to memory of 3380	1080	regsvr32.exe	85

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\HTTP_ASF_SOURCE.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:1080
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\HTTP_ASF_SOURCE.dll
  2⤵
  - System Location Discovery: System Language Discovery
  - Modifies registry class
  PID:3380

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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