11c9eb8f70bbfc1ee721330f71b81a15bb74704d9b86d92474712ec4b4f9a70c

Analysis

max time kernel
119s
max time network
119s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
22/08/2024, 14:23

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General

Target

b7fae214f571d50f16835a9c56453891_JaffaCakes118.dll
Size

95KB
MD5

b7fae214f571d50f16835a9c56453891
SHA1

43b0a3378a194b22854d62d11d0f0f425dbc02f6
SHA256

11c9eb8f70bbfc1ee721330f71b81a15bb74704d9b86d92474712ec4b4f9a70c
SHA512

0e21f7c298555820a6258f051b5546566553611fcddb1222e44fc2caabda1f0560fbc12fb96339117bc2fca02f516ee3ae1867345feb8de55a53658bf48d6a25
SSDEEP

1536:0Yvynn+A2Vd+Kne4OKutxZL4Qgj+ZxlmlS0Ot4lPsUCpLCe+4UoOv/ggvMDxOLFI:hv4+AY+aeim5HZDmS0OSlPsHwD3ggvMz

Score

7^/10

adware discovery 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/1040-0-0x00000000003A0000-0x00000000003DC000-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\{CD35E3B9-73EE-4FAB-A52D-B0119CF13719}	regsvr32.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	regsvr32.exe

Modifies registry class 6 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{CD35E3B9-73EE-4FAB-A52D-B0119CF13719}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{CD35E3B9-73EE-4FAB-A52D-B0119CF13719}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\b7fae214f571d50f16835a9c56453891_JaffaCakes118.dll"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{CD35E3B9-73EE-4FAB-A52D-B0119CF13719}\InprocServer32\ThreadingModel = "apartment"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{CD35E3B9-73EE-4FAB-A52D-B0119CF13719}\InprocServer32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID	regsvr32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 1288 wrote to memory of 1040	1288	regsvr32.exe	28
PID 1288 wrote to memory of 1040	1288	regsvr32.exe	28
PID 1288 wrote to memory of 1040	1288	regsvr32.exe	28
PID 1288 wrote to memory of 1040	1288	regsvr32.exe	28
PID 1288 wrote to memory of 1040	1288	regsvr32.exe	28
PID 1288 wrote to memory of 1040	1288	regsvr32.exe	28
PID 1288 wrote to memory of 1040	1288	regsvr32.exe	28

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\b7fae214f571d50f16835a9c56453891_JaffaCakes118.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:1288
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\b7fae214f571d50f16835a9c56453891_JaffaCakes118.dll
  2⤵
  - Installs/modifies Browser Helper Object
  - System Location Discovery: System Language Discovery
  - Modifies registry class
  PID:1040

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/1040-0-0x00000000003A0000-0x00000000003DC000-memory.dmp

Filesize
240KB

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