1c4b221499bd58a2f1a7c8e07ddaaa8a053f4ccd23d78323e0dfa0f5b9221580

Analysis

max time kernel
149s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240709-en
resource tags

arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system
submitted
12/07/2024, 03:13

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General

Target

3bca89d67339d972bbd6906948d2738c_JaffaCakes118.dll
Size

748KB
MD5

3bca89d67339d972bbd6906948d2738c
SHA1

dbdd7edef9c6cc09302b0952d1c2d48a9fa1bf6a
SHA256

1c4b221499bd58a2f1a7c8e07ddaaa8a053f4ccd23d78323e0dfa0f5b9221580
SHA512

6fe70dba9b0bf454ec3d7010cd21937dfbe34d869e967c2eb6b2dd2c5dc8f9eefd5c02164b342dfaaf015398cadc363a5d9b5c7db488fb3b94f2e81bf862f293
SSDEEP

12288:EBU8cxdgHWMkSMs0jgx8RX7r3SgyXIKcOzN+IldpxvhvviFbJgdm8TIxAqO7WHfn:I2MkSWW4X7ZKcyrpxvh1UdOAn

Score

6^/10

adware stealer

Malware Config

Signatures

Installs/modifies Browser Helper Object 2 TTPs 3 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\{FCAAAC14-BC46-40CA-9CB2-CBB12C6739EB}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{FCAAAC14-BC46-40CA-9CB2-CBB12C6739EB}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{FCAAAC14-BC46-40CA-9CB2-CBB12C6739EB}\ = "Banco do Brasil S.A."	regsvr32.exe

Modifies registry class 6 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{FCAAAC14-BC46-40CA-9CB2-CBB12C6739EB}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{FCAAAC14-BC46-40CA-9CB2-CBB12C6739EB}\	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{FCAAAC14-BC46-40CA-9CB2-CBB12C6739EB}\InprocServer32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{FCAAAC14-BC46-40CA-9CB2-CBB12C6739EB}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\3bca89d67339d972bbd6906948d2738c_JaffaCakes118.dll"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{FCAAAC14-BC46-40CA-9CB2-CBB12C6739EB}\InprocServer32\ThreadingModel = "Apartment"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{FCAAAC14-BC46-40CA-9CB2-CBB12C6739EB}\ = "GbiehObj Class"	regsvr32.exe

Suspicious use of AdjustPrivilegeToken 19 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	4596	regsvr32.exe
Token: SeSecurityPrivilege	4596	regsvr32.exe
Token: SeTakeOwnershipPrivilege	4596	regsvr32.exe
Token: SeLoadDriverPrivilege	4596	regsvr32.exe
Token: SeSystemProfilePrivilege	4596	regsvr32.exe
Token: SeSystemtimePrivilege	4596	regsvr32.exe
Token: SeProfSingleProcessPrivilege	4596	regsvr32.exe
Token: SeIncBasePriorityPrivilege	4596	regsvr32.exe
Token: SeCreatePagefilePrivilege	4596	regsvr32.exe
Token: SeShutdownPrivilege	4596	regsvr32.exe
Token: SeDebugPrivilege	4596	regsvr32.exe
Token: SeSystemEnvironmentPrivilege	4596	regsvr32.exe
Token: SeRemoteShutdownPrivilege	4596	regsvr32.exe
Token: SeUndockPrivilege	4596	regsvr32.exe
Token: SeManageVolumePrivilege	4596	regsvr32.exe
Token: 33	4596	regsvr32.exe
Token: 34	4596	regsvr32.exe
Token: 35	4596	regsvr32.exe
Token: 36	4596	regsvr32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2180 wrote to memory of 4596	2180	regsvr32.exe	83
PID 2180 wrote to memory of 4596	2180	regsvr32.exe	83
PID 2180 wrote to memory of 4596	2180	regsvr32.exe	83

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\3bca89d67339d972bbd6906948d2738c_JaffaCakes118.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:2180
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\3bca89d67339d972bbd6906948d2738c_JaffaCakes118.dll
  2⤵
  - Installs/modifies Browser Helper Object
  - Modifies registry class
  - Suspicious use of AdjustPrivilegeToken
  PID:4596

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

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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