5943667fc41806abb9b3e0bd93d765a86f93deac97aa860a0bead1371f2b9fc8

Analysis

max time kernel
142s
max time network
119s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
05/10/2024, 06:46

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General

Target

16961af4745599b18a9e8f721a92b8a6_JaffaCakes118.exe
Size

304KB
MD5

16961af4745599b18a9e8f721a92b8a6
SHA1

06229bac8705749ce962fdde0f7dece0348e89fd
SHA256

5943667fc41806abb9b3e0bd93d765a86f93deac97aa860a0bead1371f2b9fc8
SHA512

91ad05db1b2cedf229457a1db50c9746b2c9b42b8eea203124704527f887eafbc57e33b3f65604b033075c0fbe5195f848e4652bac079f2453a0f779bfe26195
SSDEEP

6144:I/O0DAlw/SrYaWy9WJGNppRrk3hzOD0jAWgCP2vIZPFE9tp3UYUL:R+/SrXWy9WkNXRrszO6gCuvIKcL

Score

7^/10

bootkit discovery persistence

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2792	SkypeClient.EXE

Loads dropped DLL 2 IoCs

pid	Process
2644	16961af4745599b18a9e8f721a92b8a6_JaffaCakes118.exe
2644	16961af4745599b18a9e8f721a92b8a6_JaffaCakes118.exe

Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs

Bootkits write to the MBR to gain persistence at a level below the operating system.

bootkit persistence

Bootkit

T1542.003

description	ioc	Process
File opened for modification	\??\PhysicalDrive0	SkypeClient.EXE

Drops file in System32 directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\SysWOW64\SkypeClient.EXE	16961af4745599b18a9e8f721a92b8a6_JaffaCakes118.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 2 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	16961af4745599b18a9e8f721a92b8a6_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	SkypeClient.EXE

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
2644	16961af4745599b18a9e8f721a92b8a6_JaffaCakes118.exe
2644	16961af4745599b18a9e8f721a92b8a6_JaffaCakes118.exe
2792	SkypeClient.EXE
2792	SkypeClient.EXE

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2644 wrote to memory of 2792	2644	16961af4745599b18a9e8f721a92b8a6_JaffaCakes118.exe	30
PID 2644 wrote to memory of 2792	2644	16961af4745599b18a9e8f721a92b8a6_JaffaCakes118.exe	30
PID 2644 wrote to memory of 2792	2644	16961af4745599b18a9e8f721a92b8a6_JaffaCakes118.exe	30
PID 2644 wrote to memory of 2792	2644	16961af4745599b18a9e8f721a92b8a6_JaffaCakes118.exe	30

C:\Users\Admin\AppData\Local\Temp\16961af4745599b18a9e8f721a92b8a6_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\16961af4745599b18a9e8f721a92b8a6_JaffaCakes118.exe"
1⤵
- Loads dropped DLL
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2644
- C:\WINDOWS\SysWOW64\SkypeClient.EXE
  "C:\WINDOWS\system32\SkypeClient.EXE"
  2⤵
  - Executes dropped EXE
  - Writes to the Master Boot Record (MBR)
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  PID:2792

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Pre-OS Boot

T1542

Bootkit

T1542.003

Privilege Escalation

Defense Evasion

Pre-OS Boot

T1542

Bootkit

T1542.003

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

\Windows\SysWOW64\SkypeClient.EXE

Filesize
240KB

MD5
7311e55f12cc248d08211e46fd4d2369

SHA1
3b68b0fef1e1ab9975b75f68917042039c3fc4be

SHA256
e62a98d8850e7940f215d16d76967b9654b607f74f158ebe4e2eedfaa8933d66

SHA512
be48f73f966faa4b7e285b1944a075ba6f38a55133304071009654af3846454b18b6aaa159f8896544291ea31a04af382310c19cad240ecb8c67faae0461e4af

Download Submit
memory/2644-0-0x0000000000220000-0x0000000000221000-memory.dmp

Filesize
4KB

Download
memory/2644-10-0x0000000000400000-0x00000000004FF000-memory.dmp

Filesize
1020KB

Download
memory/2644-11-0x0000000000220000-0x0000000000221000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads