15e582c0960adb412c05316336dab08438bf563391e64f636945aa8849251da9

Analysis

max time kernel
150s
max time network
126s
platform
windows10-2004_x64
resource
win10v2004-20240704-en
resource tags

arch:x64arch:x86image:win10v2004-20240704-enlocale:en-usos:windows10-2004-x64system
submitted
13-07-2024 15:14

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General

Target

42379e70bb511d7659943faaa3d84e1c_JaffaCakes118.exe
Size

125KB
MD5

42379e70bb511d7659943faaa3d84e1c
SHA1

e885091986a50c70e2d6179c3ecddaca1ac1d425
SHA256

15e582c0960adb412c05316336dab08438bf563391e64f636945aa8849251da9
SHA512

dc6ab52e3b85f1cd2a0404984b0775a9647dec61e9a37e8ecbcde177f8b0542633e4c9958c077fd98184e82d75163b87be0edc6762d7ee72b82da5ff53a36042
SSDEEP

3072:EJgwBIxhn+dz7diTqkGqcZBUPs7dHNnu3lAzyDJkluJfBd8W:EuwWx8fScnUPey1BtB

Score

7^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
4128	Fvynua.exe

Drops file in Windows directory 6 IoCs

description	ioc	Process
File opened for modification	C:\Windows\Fvynua.exe	42379e70bb511d7659943faaa3d84e1c_JaffaCakes118.exe
File created	C:\Windows\Tasks\{62C40AA6-4406-467a-A5A5-DFDF1B559B7A}.job	Fvynua.exe
File opened for modification	C:\Windows\Tasks\{62C40AA6-4406-467a-A5A5-DFDF1B559B7A}.job	Fvynua.exe
File created	C:\Windows\Tasks\{62C40AA6-4406-467a-A5A5-DFDF1B559B7A}.job	42379e70bb511d7659943faaa3d84e1c_JaffaCakes118.exe
File opened for modification	C:\Windows\Tasks\{62C40AA6-4406-467a-A5A5-DFDF1B559B7A}.job	42379e70bb511d7659943faaa3d84e1c_JaffaCakes118.exe
File created	C:\Windows\Fvynua.exe	42379e70bb511d7659943faaa3d84e1c_JaffaCakes118.exe

Modifies Internet Explorer settings 1 TTPs 2 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-1403246978-718555486-3105247137-1000\Software\Microsoft\Internet Explorer\Main	Fvynua.exe
Key created	\REGISTRY\USER\S-1-5-21-1403246978-718555486-3105247137-1000\Software\Microsoft\Internet Explorer\International	Fvynua.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
4128	Fvynua.exe
4128	Fvynua.exe
4128	Fvynua.exe
4128	Fvynua.exe
4128	Fvynua.exe
4128	Fvynua.exe
4128	Fvynua.exe
4128	Fvynua.exe
4128	Fvynua.exe
4128	Fvynua.exe
4128	Fvynua.exe
4128	Fvynua.exe
4128	Fvynua.exe
4128	Fvynua.exe
4128	Fvynua.exe
4128	Fvynua.exe
4128	Fvynua.exe
4128	Fvynua.exe
4128	Fvynua.exe
4128	Fvynua.exe
4128	Fvynua.exe
4128	Fvynua.exe
4128	Fvynua.exe
4128	Fvynua.exe
4128	Fvynua.exe
4128	Fvynua.exe
4128	Fvynua.exe
4128	Fvynua.exe
4128	Fvynua.exe
4128	Fvynua.exe
4128	Fvynua.exe
4128	Fvynua.exe
4128	Fvynua.exe
4128	Fvynua.exe
4128	Fvynua.exe
4128	Fvynua.exe
4128	Fvynua.exe
4128	Fvynua.exe
4128	Fvynua.exe
4128	Fvynua.exe
4128	Fvynua.exe
4128	Fvynua.exe
4128	Fvynua.exe
4128	Fvynua.exe
4128	Fvynua.exe
4128	Fvynua.exe
4128	Fvynua.exe
4128	Fvynua.exe
4128	Fvynua.exe
4128	Fvynua.exe
4128	Fvynua.exe
4128	Fvynua.exe
4128	Fvynua.exe
4128	Fvynua.exe
4128	Fvynua.exe
4128	Fvynua.exe
4128	Fvynua.exe
4128	Fvynua.exe
4128	Fvynua.exe
4128	Fvynua.exe
4128	Fvynua.exe
4128	Fvynua.exe
4128	Fvynua.exe
4128	Fvynua.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4924 wrote to memory of 4128	4924	42379e70bb511d7659943faaa3d84e1c_JaffaCakes118.exe	86
PID 4924 wrote to memory of 4128	4924	42379e70bb511d7659943faaa3d84e1c_JaffaCakes118.exe	86
PID 4924 wrote to memory of 4128	4924	42379e70bb511d7659943faaa3d84e1c_JaffaCakes118.exe	86

C:\Users\Admin\AppData\Local\Temp\42379e70bb511d7659943faaa3d84e1c_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\42379e70bb511d7659943faaa3d84e1c_JaffaCakes118.exe"
1⤵
- Drops file in Windows directory
- Suspicious use of WriteProcessMemory
PID:4924
- C:\Windows\Fvynua.exe
  C:\Windows\Fvynua.exe
  2⤵
  - Executes dropped EXE
  - Drops file in Windows directory
  - Modifies Internet Explorer settings
  - Suspicious behavior: EnumeratesProcesses
  PID:4128

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Windows\Fvynua.exe

Filesize
125KB

MD5
42379e70bb511d7659943faaa3d84e1c

SHA1
e885091986a50c70e2d6179c3ecddaca1ac1d425

SHA256
15e582c0960adb412c05316336dab08438bf563391e64f636945aa8849251da9

SHA512
dc6ab52e3b85f1cd2a0404984b0775a9647dec61e9a37e8ecbcde177f8b0542633e4c9958c077fd98184e82d75163b87be0edc6762d7ee72b82da5ff53a36042

Download Submit
C:\Windows\Tasks\{62C40AA6-4406-467a-A5A5-DFDF1B559B7A}.job

Filesize
390B

MD5
1d16fc38b909b01507649d70e3ed09ba

SHA1
21b0b7f5a8e3741755968dd38de0407637f03ce1

SHA256
d888d76efacf3dfe40496901c4249bfdfb6d198ef30cfaf1f3f5471c24b604ff

SHA512
0ca1f7b779d12f40dea5fd27e46a8445f5f02ddf7474da57e89c24088574fc8a5c9d7ad5eaefb0c571f1e2be5c0e7b9ca02c1314e2e1516ee7e69fbe590892d8

Download Submit
memory/4128-121838-0x0000000001F10000-0x0000000001F3E000-memory.dmp

Filesize
184KB

Download
memory/4128-9-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/4128-8-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/4128-121837-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/4128-121841-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/4128-121843-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/4128-121845-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/4128-121850-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/4128-121858-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/4924-1-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/4924-121836-0x00000000006B0000-0x00000000006DE000-memory.dmp

Filesize
184KB

Download
memory/4924-121835-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/4924-0-0x00000000006E0000-0x00000000006F3000-memory.dmp

Filesize
76KB

Download