86f2479dd05b73a37a51781888ebbbdd39b74ee5f925c6039a64d74de55910c8

Analysis

max time kernel
117s
max time network
122s
platform
windows7_x64
resource
win7-20240704-en
resource tags

arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
submitted
08/07/2024, 05:43

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General

Target

2b2e2d617883eec929dfe3604bf9e0bb_JaffaCakes118.dll
Size

354KB
MD5

2b2e2d617883eec929dfe3604bf9e0bb
SHA1

cd31660701c38e625e3e02ddc6b82d92c9dc1c65
SHA256

86f2479dd05b73a37a51781888ebbbdd39b74ee5f925c6039a64d74de55910c8
SHA512

18ce5f3f1539d6481568c75b1ae78cea03a1303de98ee9f2a290a88cfa3e0655e480ed9649342b6d451b06d35c7d14bffcb35598e24849be07ff18d745590807
SSDEEP

6144:30h1OLot3tKNbSdxVSr810HXBlT3XvpNU9D+0uBlB8MACrvIFPJNou:3zomMJn03BlTsonrPrTIFPJN

Score

7^/10

adware stealer upx

Malware Config

Signatures

UPX packed file 1 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral1/memory/2188-0-0x0000000002000000-0x0000000002122000-memory.dmp	upx

Installs/modifies Browser Helper Object 2 TTPs 2 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\{A9F81D8B-04F9-4054-AEE5-F75DD71F0992}	regsvr32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\explorer\Browser Helper Objects\{A9F81D8B-04F9-4054-AEE5-F75DD71F0992}\Noexplorer = "1"	regsvr32.exe

Modifies registry class 5 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{A9F81D8B-04F9-4054-AEE5-F75DD71F0992}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{A9F81D8B-04F9-4054-AEE5-F75DD71F0992}\	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{A9F81D8B-04F9-4054-AEE5-F75DD71F0992}\InprocServer32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{A9F81D8B-04F9-4054-AEE5-F75DD71F0992}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\2b2e2d617883eec929dfe3604bf9e0bb_JaffaCakes118.dll"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{A9F81D8B-04F9-4054-AEE5-F75DD71F0992}\InprocServer32\ThreadingModel = "Apartment"	regsvr32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2080 wrote to memory of 2188	2080	regsvr32.exe	30
PID 2080 wrote to memory of 2188	2080	regsvr32.exe	30
PID 2080 wrote to memory of 2188	2080	regsvr32.exe	30
PID 2080 wrote to memory of 2188	2080	regsvr32.exe	30
PID 2080 wrote to memory of 2188	2080	regsvr32.exe	30
PID 2080 wrote to memory of 2188	2080	regsvr32.exe	30
PID 2080 wrote to memory of 2188	2080	regsvr32.exe	30

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\2b2e2d617883eec929dfe3604bf9e0bb_JaffaCakes118.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:2080
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\2b2e2d617883eec929dfe3604bf9e0bb_JaffaCakes118.dll
  2⤵
  - Installs/modifies Browser Helper Object
  - Modifies registry class
  PID:2188

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

Replay Monitor

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Downloads

memory/2188-0-0x0000000002000000-0x0000000002122000-memory.dmp

Filesize
1.1MB

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