2e70e246e00af4fbdd12fca399a9f609b38946aa2c9a637007631d70c2bee15d

Analysis

max time kernel
133s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
18/08/2024, 15:54

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General

Target

a746dd94f402c4973528213e67b7195b_JaffaCakes118.exe
Size

32KB
MD5

a746dd94f402c4973528213e67b7195b
SHA1

7b92eb5bbc791741deeb01fc6cc6d9b62bc2ac91
SHA256

2e70e246e00af4fbdd12fca399a9f609b38946aa2c9a637007631d70c2bee15d
SHA512

2ceab589b9b6a45f8bbbb9d945ea58542543d810744e314753c040175ffe9a7a46fef6947bc13a283d2cbc476afe9f1cbe035bc1f9f05b3bd73953201ff27a46
SSDEEP

768:pdFibdzyHOUXEf/b+xejELdKeHyk0B+bdQC7HPIL9rQUz9:fYbdzyu5fzseedKAyksAPGp19

Score

7^/10

adware discovery stealer upx

Malware Config

Signatures

UPX packed file 3 IoCs

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

upx

resource	yara_rule
behavioral2/memory/3704-0-0x0000000000400000-0x000000000041A000-memory.dmp	upx
behavioral2/memory/3704-1-0x0000000000400000-0x000000000041A000-memory.dmp	upx
behavioral2/memory/1948-2-0x0000000000400000-0x000000000041A000-memory.dmp	upx

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\{48691221-F05C-4AB4-B9D0-50D6D36CC27F}	a746dd94f402c4973528213e67b7195b_JaffaCakes118.exe

Drops file in Program Files directory 3 IoCs

description	ioc	Process
File created	C:\Program Files\Internet Explorer\PLUGINS\WinNt64.Jmp	a746dd94f402c4973528213e67b7195b_JaffaCakes118.exe
File created	C:\Program Files\Internet Explorer\PLUGINS\WinNt64.Sys	a746dd94f402c4973528213e67b7195b_JaffaCakes118.exe
File created	C:\Program Files\Internet Explorer\PLUGINS\WinNt64.Jmp	a746dd94f402c4973528213e67b7195b_JaffaCakes118.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	a746dd94f402c4973528213e67b7195b_JaffaCakes118.exe

Modifies registry class 5 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{48691221-F05C-4AB4-B9D0-50D6D36CC27F}	a746dd94f402c4973528213e67b7195b_JaffaCakes118.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{48691221-F05C-4AB4-B9D0-50D6D36CC27F}\	a746dd94f402c4973528213e67b7195b_JaffaCakes118.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{48691221-F05C-4AB4-B9D0-50D6D36CC27F}\InProcServer32	a746dd94f402c4973528213e67b7195b_JaffaCakes118.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{48691221-F05C-4AB4-B9D0-50D6D36CC27F}\InProcServer32\ = "C:\\Program Files\\Internet Explorer\\PLUGINS\\WinNt64.Sys"	a746dd94f402c4973528213e67b7195b_JaffaCakes118.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{48691221-F05C-4AB4-B9D0-50D6D36CC27F}\InProcServer32\ThreadingModel = "Apartment"	a746dd94f402c4973528213e67b7195b_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 3704 wrote to memory of 1948	3704	a746dd94f402c4973528213e67b7195b_JaffaCakes118.exe	84
PID 3704 wrote to memory of 1948	3704	a746dd94f402c4973528213e67b7195b_JaffaCakes118.exe	84
PID 3704 wrote to memory of 1948	3704	a746dd94f402c4973528213e67b7195b_JaffaCakes118.exe	84

C:\Users\Admin\AppData\Local\Temp\a746dd94f402c4973528213e67b7195b_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\a746dd94f402c4973528213e67b7195b_JaffaCakes118.exe"
1⤵
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3704
- C:\Users\Admin\AppData\Local\Temp\a746dd94f402c4973528213e67b7195b_JaffaCakes118.exe
  "C:\Users\Admin\AppData\Local\Temp\a746dd94f402c4973528213e67b7195b_JaffaCakes118.exe" Z
  2⤵
  - Installs/modifies Browser Helper Object
  - Drops file in Program Files directory
  - Modifies registry class
  PID:1948

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

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/1948-2-0x0000000000400000-0x000000000041A000-memory.dmp

Filesize
104KB

Download
memory/3704-0-0x0000000000400000-0x000000000041A000-memory.dmp

Filesize
104KB

Download
memory/3704-1-0x0000000000400000-0x000000000041A000-memory.dmp

Filesize
104KB

Download