19be484b4f98e3ecb9af311cbdbf63fe556b0c7602d43ec945b0b993ef76a111

Analysis

max time kernel
150s
max time network
114s
platform
windows10-2004_x64
resource
win10v2004-20240412-en
resource tags

arch:x64arch:x86image:win10v2004-20240412-enlocale:en-usos:windows10-2004-x64system
submitted
19/04/2024, 05:10

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General

Target

f9941172559a824915d8c8b42b651bb6_JaffaCakes118.exe
Size

14KB
MD5

f9941172559a824915d8c8b42b651bb6
SHA1

e6395a8d080ee489ec772c861b4019328e19e7cb
SHA256

19be484b4f98e3ecb9af311cbdbf63fe556b0c7602d43ec945b0b993ef76a111
SHA512

e9a5e155be044bc979bcf57a7a7da9b9bb8beaed56aace362d3ae648481efe27c1532cd207767a7cd082a533788356327b8dd08f0dfb07868051f006a4efe56e
SSDEEP

384:ONchbeoxgRomFx2wXGggoMRRsoqTr9dcmc:OKhOooG+MRRfQF

Score

8^/10

persistence upx

Malware Config

Signatures

Modifies AppInit DLL entries 2 TTPs
persistence

Registry Run Keys / Startup Folder
T1547.001

Modify Registry
T1112

Executes dropped EXE 1 IoCs

pid	Process
1800	lenowosk.exe

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral2/memory/1192-0-0x0000000000400000-0x0000000000410000-memory.dmp	upx
behavioral2/files/0x00090000000233f1-4.dat	upx
behavioral2/memory/1800-6-0x0000000000400000-0x0000000000410000-memory.dmp	upx
behavioral2/memory/1192-7-0x0000000000400000-0x0000000000410000-memory.dmp	upx
behavioral2/memory/1800-8-0x0000000000400000-0x0000000000410000-memory.dmp	upx

Drops file in System32 directory 3 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\lenowos.dll	f9941172559a824915d8c8b42b651bb6_JaffaCakes118.exe
File created	C:\Windows\SysWOW64\lenowosk.exe	f9941172559a824915d8c8b42b651bb6_JaffaCakes118.exe
File opened for modification	C:\Windows\SysWOW64\lenowosk.exe	f9941172559a824915d8c8b42b651bb6_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 1192 wrote to memory of 1800	1192	f9941172559a824915d8c8b42b651bb6_JaffaCakes118.exe	83
PID 1192 wrote to memory of 1800	1192	f9941172559a824915d8c8b42b651bb6_JaffaCakes118.exe	83
PID 1192 wrote to memory of 1800	1192	f9941172559a824915d8c8b42b651bb6_JaffaCakes118.exe	83
PID 1192 wrote to memory of 4016	1192	f9941172559a824915d8c8b42b651bb6_JaffaCakes118.exe	92
PID 1192 wrote to memory of 4016	1192	f9941172559a824915d8c8b42b651bb6_JaffaCakes118.exe	92
PID 1192 wrote to memory of 4016	1192	f9941172559a824915d8c8b42b651bb6_JaffaCakes118.exe	92

C:\Users\Admin\AppData\Local\Temp\f9941172559a824915d8c8b42b651bb6_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\f9941172559a824915d8c8b42b651bb6_JaffaCakes118.exe"
1⤵
- Drops file in System32 directory
- Suspicious use of WriteProcessMemory
PID:1192
- C:\Windows\SysWOW64\lenowosk.exe
  C:\Windows\system32\lenowosk.exe ˜‰
  2⤵
  - Executes dropped EXE
  PID:1800
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c C:\Users\Admin\AppData\Local\Temp\f9941172559a824915d8c8b42b651bb6_JaffaCakes118.exe.bat
  2⤵
  PID:4016

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\f9941172559a824915d8c8b42b651bb6_JaffaCakes118.exe.bat

Filesize
210B

MD5
72246e867eca596824384f78b91f245c

SHA1
e5fe6a270a503d08732b3e3174b554af800f862f

SHA256
38aa835086ff9e1aff1ec9b0b812359537690272a4f257a34dcec5ac420dff13

SHA512
1a01b0b1f0291e132a78fdb7eab6ac5538f38ea618f932d2568f80f1e64ce866839cf6cffa6963af00d155fc46757e7419edee558c39b730dc2007131fbfc6d5

Download Submit
C:\Windows\SysWOW64\lenowosk.exe

Filesize
14KB

MD5
f9941172559a824915d8c8b42b651bb6

SHA1
e6395a8d080ee489ec772c861b4019328e19e7cb

SHA256
19be484b4f98e3ecb9af311cbdbf63fe556b0c7602d43ec945b0b993ef76a111

SHA512
e9a5e155be044bc979bcf57a7a7da9b9bb8beaed56aace362d3ae648481efe27c1532cd207767a7cd082a533788356327b8dd08f0dfb07868051f006a4efe56e

Download Submit
memory/1192-0-0x0000000000400000-0x0000000000410000-memory.dmp

Filesize
64KB

Download
memory/1192-7-0x0000000000400000-0x0000000000410000-memory.dmp

Filesize
64KB

Download
memory/1800-6-0x0000000000400000-0x0000000000410000-memory.dmp

Filesize
64KB

Download
memory/1800-8-0x0000000000400000-0x0000000000410000-memory.dmp

Filesize
64KB

Download