b42a0a7f6bb1630af7a40846026a70532c052e250b50888fd889fa378921ce91

Analysis

max time kernel
41s
max time network
34s
platform
windows7_x64
resource
win7-20221111-en
resource tags

arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
submitted
06/12/2022, 16:53

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General

Target

b42a0a7f6bb1630af7a40846026a70532c052e250b50888fd889fa378921ce91.dll
Size

371KB
MD5

2077537b5967eda36f52151a818673ff
SHA1

5b3d2b2a7e5b391ba4ad5f1d98aef9551e618daf
SHA256

b42a0a7f6bb1630af7a40846026a70532c052e250b50888fd889fa378921ce91
SHA512

056b3a68c7eadee90fcc10112793b8574b384322851a9d6c74d75312c37aa19701efa32703868653385fef79aea7c1c4783f75b94247720a6be7f80322792a44
SSDEEP

6144:R+Ka7ZXdAcKlsdWxAL6n96vUsc2sXMb5TYLhB2dZ/Nd:Udd3Kls+9sUsZsyqLT2dZ

Score

1^/10

Malware Config

Signatures

Modifies Internet Explorer settings 1 TTPs 2 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\SOFTWARE\Microsoft\Internet Explorer\UrlSearchHooks	regsvr32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\URLSearchHooks\{6DD5C517-9F56-4113-ADBE-94801329768C}	regsvr32.exe

Modifies registry class 11 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{6DD5C517-9F56-4113-ADBE-94801329768C}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{6DD5C517-9F56-4113-ADBE-94801329768C}\	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{6DD5C517-9F56-4113-ADBE-94801329768C}\InprocServer32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{6DD5C517-9F56-4113-ADBE-94801329768C}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\b42a0a7f6bb1630af7a40846026a70532c052e250b50888fd889fa378921ce91.dll"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\b42a0a7f6bb1630af7a40846026a70532c052e250b50888fd889fa378921ce91.miwyff\	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\b42a0a7f6bb1630af7a40846026a70532c052e250b50888fd889fa378921ce91.miwyff\Clsid	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{6DD5C517-9F56-4113-ADBE-94801329768C}\InprocServer32\ThreadingModel = "Apartment"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\b42a0a7f6bb1630af7a40846026a70532c052e250b50888fd889fa378921ce91.miwyff	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\b42a0a7f6bb1630af7a40846026a70532c052e250b50888fd889fa378921ce91.miwyff\Clsid\ = "{6DD5C517-9F56-4113-ADBE-94801329768C}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{6DD5C517-9F56-4113-ADBE-94801329768C}\ProgID	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{6DD5C517-9F56-4113-ADBE-94801329768C}\ProgID\ = "b42a0a7f6bb1630af7a40846026a70532c052e250b50888fd889fa378921ce91.miwyff"	regsvr32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 1476 wrote to memory of 1792	1476	regsvr32.exe	28
PID 1476 wrote to memory of 1792	1476	regsvr32.exe	28
PID 1476 wrote to memory of 1792	1476	regsvr32.exe	28
PID 1476 wrote to memory of 1792	1476	regsvr32.exe	28
PID 1476 wrote to memory of 1792	1476	regsvr32.exe	28
PID 1476 wrote to memory of 1792	1476	regsvr32.exe	28
PID 1476 wrote to memory of 1792	1476	regsvr32.exe	28

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\b42a0a7f6bb1630af7a40846026a70532c052e250b50888fd889fa378921ce91.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:1476
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\b42a0a7f6bb1630af7a40846026a70532c052e250b50888fd889fa378921ce91.dll
  2⤵
  - Modifies Internet Explorer settings
  - Modifies registry class
  PID:1792

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/1476-54-0x000007FEFB941000-0x000007FEFB943000-memory.dmp

Filesize
8KB

Download
memory/1792-56-0x00000000757E1000-0x00000000757E3000-memory.dmp

Filesize
8KB

Download