4799ad9f38b0233b64b8a675ba67a14988c2be3a36e50140b136c55cf585b810

Analysis

max time kernel
120s
max time network
123s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
15/04/2024, 08:28

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General

Target
f0a94fa88917463ade3432563abff492_JaffaCakes118.exe
Size 80KB
Sample240415-kdaekaac94
SHA256 4799ad9f38b0233b64b8a675ba67a14988c2be3a36e50140b136c55cf585b810
MD5 f0a94fa88917463ade3432563abff492
SHA1 37ae1c4b8670adb519a5c98ff29d7f19f7e449c1
SHA512 c3343c8d9bb470ab6cfaa97f60a9390c4f002745476e5fdb59f3ac93e81bdc2b6ab8162bb6b262ee404876638b3a1d9e12b3b35af23e89fb80206652ed4bd4fd
SSDEEP 1536:EIStjt6ToC5fxPqcOEmQMYXnewWivACoSe9BbX8AFMjtf0sziudhuqqtMPVd+TY2:55L5JP+PRitUvX8Hmszvdh2tuVoEkT
MD5 SHA1 SHA512 SSDEEP

Score

7^/10

adware stealer

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2152	sxe37C5.tmp

Loads dropped DLL 3 IoCs

pid	Process
2928	f0a94fa88917463ade3432563abff492_JaffaCakes118.exe
2928	f0a94fa88917463ade3432563abff492_JaffaCakes118.exe
2928	f0a94fa88917463ade3432563abff492_JaffaCakes118.exe

Installs/modifies Browser Helper Object 2 TTPs 1 IoCs

BHOs are DLL modules which act as plugins for Internet Explorer.

stealer adware

Modify Registry

T1112

Browser Extensions

T1176

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{00009E9F-DDD7-AA59-AA7D-AA4B7D6BE000}	sxe37C5.tmp

Drops file in System32 directory 1 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\mscorews.dll	sxe37C5.tmp

Modifies registry class 9 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{00009E9F-DDD7-AA59-AA7D-AA4B7D6BE000}\InprocServer32	sxe37C5.tmp
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node	sxe37C5.tmp
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{00009E9F-DDD7-AA59-AA7D-AA4B7D6BE000}	sxe37C5.tmp
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{00009E9F-DDD7-AA59-AA7D-AA4B7D6BE000}\InprocServer32\ = "C:\\Windows\\SysWow64\\mscorews.dll"	sxe37C5.tmp
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{00009E9F-DDD7-AA59-AA7D-AA4B7D6BE000}\InprocServer32\ThreadingModel = "Apartment"	sxe37C5.tmp
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{00009E9F-DDD7-AA59-AA7D-AA4B7D6BE000}\TypeLib	sxe37C5.tmp
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID	sxe37C5.tmp
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{00009E9F-DDD7-AA59-AA7D-AA4B7D6BE000}\TypeLib\ = "{00009E9F-DDD7-AA59-AA7D-AA4B7D6BE000}"	sxe37C5.tmp
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{00009E9F-DDD7-AA59-AA7D-AA4B7D6BE000}\ = "mscorews"	sxe37C5.tmp

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2928 wrote to memory of 2152	2928	f0a94fa88917463ade3432563abff492_JaffaCakes118.exe	28
PID 2928 wrote to memory of 2152	2928	f0a94fa88917463ade3432563abff492_JaffaCakes118.exe	28
PID 2928 wrote to memory of 2152	2928	f0a94fa88917463ade3432563abff492_JaffaCakes118.exe	28
PID 2928 wrote to memory of 2152	2928	f0a94fa88917463ade3432563abff492_JaffaCakes118.exe	28
PID 2928 wrote to memory of 2152	2928	f0a94fa88917463ade3432563abff492_JaffaCakes118.exe	28
PID 2928 wrote to memory of 2152	2928	f0a94fa88917463ade3432563abff492_JaffaCakes118.exe	28
PID 2928 wrote to memory of 2152	2928	f0a94fa88917463ade3432563abff492_JaffaCakes118.exe	28

C:\Users\Admin\AppData\Local\Temp\f0a94fa88917463ade3432563abff492_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\f0a94fa88917463ade3432563abff492_JaffaCakes118.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2928
- C:\Users\Admin\AppData\Local\Temp\sxe37C5.tmp
  "C:\Users\Admin\AppData\Local\Temp\sxe37C5.tmp"
  2⤵
  - Executes dropped EXE
  - Installs/modifies Browser Helper Object
  - Drops file in System32 directory
  - Modifies registry class
  PID:2152

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Browser Extensions

T1176

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

sxe37B3.tmp

Path \Users\Admin\AppData\Local\Temp\sxe37B3.tmp
Size 15KB
SHA256 b018bf9e9f8b6d945e6a2a25984970634884afabc580af2b4e855730520d5d76
MD5 bd815b61f9948f93aface4033fbb4423
SHA1 b5391484009b39053fc8b1bba63d444969bafcfa
SHA512 a363abe97b5a44e5d36af859e8d484daffe1d8e321c87969a75d1bfaa4288a5e6be1922a02c6d72937c84e81a79a1c7f6c9f2a44a995cac3f993ed5608afcd71
SSDEEP 192:Gi7Nr+Dlkv5oGxoSfZ7TAapVJZOO0i76HnGlj+fzARyUeDA2fLBWR:ByDlqZgsPwy+fztUmT9
MD5 SHA1 SHA512 SSDEEP

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sxe37C5.tmp

Path \Users\Admin\AppData\Local\Temp\sxe37C5.tmp
Size 152KB
SHA256 e776807e089b866575c6c7a80e65762ed1f5c6beca5b0545636cad27f6f72790
MD5 f722de53e7fffed004aea381ac288f01
SHA1 d6a947522f04bd4ffe94b0b9d5ccdeef896e4c24
SHA512 e777dd471f99e523b853606c81bf51e2d64191f72acf42fc3cadee621d02169b96580b02f5ad4ff3cd9ee24f117c741a13080e149ed82e8d3c6aa5dc7e478970
SSDEEP 1536:SAJs3AaNADUXOYuL5T+6orxTb16WPFGVjMXsZqht5fAi1F5HMnoNH:SKmNADUXgLh+n9RoSXsZ25VQno1
MD5 SHA1 SHA512 SSDEEP