13d145b208632cea1403101859df2ef53a276a740b8efa11e04fefaf1a14027b

Analysis

max time kernel
134s
max time network
107s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
27/08/2024, 04:29

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General

Target
$TEMP/map/clickheat/documents/msisip.dll
Size 15KB
Sample240827-e4bsesvcpn
SHA256 cacbc2940693d704d489f90015d24a01ec509b426bd96febc1852131a53977b8
MD5 da23a12845607133acf1db3502d4e575
SHA1 3808f3a44ffb3b2bdb7a5e57c650b0a96cd52b5f
SHA512 8b0d6a3598d4bb6b4dd061d6ad1c56c1dc8fcad5047e5c484c9b85a9698e52029cd0d873dbe8c74bcb53e6d61750fbb616f1c9e6f8ecebb82367d9e73a14ba1b
SSDEEP 192:tF8MmFDXLSPZdLzAfbkKIcY7HvqAdsiLuvRzJhaSjocS0xY0Yrk26Ab8WQn:tqvFDXmPZN+/IcY7HyniCRa4IIYvGWQ
MD5 SHA1 SHA512 SSDEEP

Score

8^/10

discovery

Malware Config

Signatures

Manipulates Digital Signatures 1 TTPs 12 IoCs

Attackers can apply techniques such as changing the registry keys of authenticode & Cryptography to obtain their binary as valid.

SIP and Trust Provider Hijacking

T1553.003

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Cryptography\OID\EncodingType 0\CryptSIPDllPutSignedDataMsg\{000C10F1-0000-0000-C000-000000000046}\Dll = "MSISIP.DLL"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Cryptography\OID\EncodingType 0\CryptSIPDllGetSignedDataMsg\{000C10F1-0000-0000-C000-000000000046}\FuncName = "MsiSIPGetSignedDataMsg"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Cryptography\OID\EncodingType 0\CryptSIPDllCreateIndirectData\{000C10F1-0000-0000-C000-000000000046}\Dll = "MSISIP.DLL"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Cryptography\OID\EncodingType 0\CryptSIPDllCreateIndirectData\{000C10F1-0000-0000-C000-000000000046}\FuncName = "MsiSIPCreateIndirectData"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Cryptography\OID\EncodingType 0\CryptSIPDllIsMyFileType2\{000C10F1-0000-0000-C000-000000000046}\Dll = "MSISIP.DLL"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Cryptography\OID\EncodingType 0\CryptSIPDllIsMyFileType2\{000C10F1-0000-0000-C000-000000000046}\FuncName = "MsiSIPIsMyTypeOfFile"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Cryptography\OID\EncodingType 0\CryptSIPDllPutSignedDataMsg\{000C10F1-0000-0000-C000-000000000046}\FuncName = "MsiSIPPutSignedDataMsg"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Cryptography\OID\EncodingType 0\CryptSIPDllGetSignedDataMsg\{000C10F1-0000-0000-C000-000000000046}\Dll = "MSISIP.DLL"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Cryptography\OID\EncodingType 0\CryptSIPDllRemoveSignedDataMsg\{000C10F1-0000-0000-C000-000000000046}\Dll = "MSISIP.DLL"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Cryptography\OID\EncodingType 0\CryptSIPDllRemoveSignedDataMsg\{000C10F1-0000-0000-C000-000000000046}\FuncName = "MsiSIPRemoveSignedDataMsg"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Cryptography\OID\EncodingType 0\CryptSIPDllVerifyIndirectData\{000C10F1-0000-0000-C000-000000000046}\Dll = "MSISIP.DLL"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Cryptography\OID\EncodingType 0\CryptSIPDllVerifyIndirectData\{000C10F1-0000-0000-C000-000000000046}\FuncName = "MsiSIPVerifyIndirectData"	regsvr32.exe

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

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 628 wrote to memory of 3260	628	regsvr32.exe	84
PID 628 wrote to memory of 3260	628	regsvr32.exe	84
PID 628 wrote to memory of 3260	628	regsvr32.exe	84

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\$TEMP\map\clickheat\documents\msisip.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:628
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\$TEMP\map\clickheat\documents\msisip.dll
  2⤵
  - Manipulates Digital Signatures
  - System Location Discovery: System Language Discovery
  PID:3260

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Subvert Trust Controls

T1553

SIP and Trust Provider Hijacking

T1553.003

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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