64575a1580f8914358a18c1e3033f54fb2fd5b4cda3fcc5e316312b9d4bab595

Analysis

max time kernel
139s
max time network
122s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
15/10/2024, 20:17

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General

Target
49cf3120df85d022901cc03a40019292_JaffaCakes118.exe
Size 20KB
Sample241015-y2ntraygmp
SHA256 64575a1580f8914358a18c1e3033f54fb2fd5b4cda3fcc5e316312b9d4bab595
MD5 49cf3120df85d022901cc03a40019292
SHA1 be145b916ddf9d562e261c34d1cb6387e4c8053f
SHA512 be15a183691014432f0421c3fcaa4efc1497a03107805e9adc8b544f22c48ef45311d5fef267fe02e1bbb90869528b9d021cb4442258d1ad3db7e9627089e810
SSDEEP 192:rrohucLm7WJ5QkqcchKMqDmRedi2EETs4w:rrohbzJmkqPhKMqQETs4w
MD5 SHA1 SHA512 SSDEEP

Score

7^/10

bootkit discovery persistence

Malware Config

Signatures

Deletes itself 1 IoCs

pid	Process
3380	x2z8.exe

Executes dropped EXE 1 IoCs

pid	Process
3380	x2z8.exe

Writes to the Master Boot Record (MBR) 1 TTPs 2 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	49cf3120df85d022901cc03a40019292_JaffaCakes118.exe
File opened for modification	\??\PHYSICALDRIVE0	x2z8.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1604	3380	WerFault.exe	84

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	49cf3120df85d022901cc03a40019292_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	x2z8.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeShutdownPrivilege	3380	x2z8.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 1796 wrote to memory of 3380	1796	49cf3120df85d022901cc03a40019292_JaffaCakes118.exe	84
PID 1796 wrote to memory of 3380	1796	49cf3120df85d022901cc03a40019292_JaffaCakes118.exe	84
PID 1796 wrote to memory of 3380	1796	49cf3120df85d022901cc03a40019292_JaffaCakes118.exe	84

C:\Users\Admin\AppData\Local\Temp\49cf3120df85d022901cc03a40019292_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\49cf3120df85d022901cc03a40019292_JaffaCakes118.exe"
1⤵
- Writes to the Master Boot Record (MBR)
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1796
- C:\Users\Admin\AppData\Local\Temp\x2z8.exe
  C:\Users\Admin\AppData\Local\Temp\\x2z8.exe
  2⤵
  - Deletes itself
  - Executes dropped EXE
  - Writes to the Master Boot Record (MBR)
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  PID:3380
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 3380 -s 392
    3⤵
    - Program crash
    PID:1604

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 3380 -ip 3380
1⤵
PID:1004

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 Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

fpath.txt

Path C:\Users\Admin\AppData\Local\Temp\fpath.txt
Size 84B
SHA256 090a52d15605fad1ae806076636e4df717967746378561ca97c03e43027edce4
MD5 3a49ae1d4dabb95cd9e3495d3713448b
SHA1 916598fb7b5141157ce844ed0d5eb69f66779823
SHA512 1b04ca2f97ce2774d7ceaba4d6c90e66b876a530d3432f6d253dd8286d8d4fa948d0741fc321a98efa1cd4e7f4085fe89e5c8e87d5a93145be4133480f4a7d81
MD5 SHA1 SHA512

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x2z8.exe

Path C:\Users\Admin\AppData\Local\Temp\x2z8.exe
Size 20KB
SHA256 64575a1580f8914358a18c1e3033f54fb2fd5b4cda3fcc5e316312b9d4bab595
MD5 49cf3120df85d022901cc03a40019292
SHA1 be145b916ddf9d562e261c34d1cb6387e4c8053f
SHA512 be15a183691014432f0421c3fcaa4efc1497a03107805e9adc8b544f22c48ef45311d5fef267fe02e1bbb90869528b9d021cb4442258d1ad3db7e9627089e810
SSDEEP 192:rrohucLm7WJ5QkqcchKMqDmRedi2EETs4w:rrohbzJmkqPhKMqQETs4w
MD5 SHA1 SHA512 SSDEEP

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memory/1796-0-0x000000002AA00000-0x000000002AA05000-memory.dmp

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memory/1796-5-0x000000002AA00000-0x000000002AA05000-memory.dmp

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memory/3380-8-0x000000002AA00000-0x000000002AA05000-memory.dmp

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads