8364bf90f2076d0c115abd6f1e545209c4e051ff4d5a8e639813b00905f99a3b

Analysis

max time kernel
150s
max time network
123s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
17-04-2024 10:08

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General

Target

f5872d0822d6722780b8c7968834d102_JaffaCakes118.exe
Size

12KB
MD5

f5872d0822d6722780b8c7968834d102
SHA1

a45af00070027ab961267bb718f42b9b7d4da673
SHA256

8364bf90f2076d0c115abd6f1e545209c4e051ff4d5a8e639813b00905f99a3b
SHA512

88bc35bffd9e0d65584ea39521cf3049081ef66d0bcbb5b3136c7f0648dfd5a950edc26dbe816e4913515d9f0efd73f88fdf2988765dadd24003c1abd9b69840
SSDEEP

192:OCfMTmJFxka1g+5dSI/6PRu++LqB2D+K9TjvB29AidBTkWSOu:OCfRFSe+u6PRhtRdBlSL

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

Deletes itself 1 IoCs

pid	Process
2460	cmd.exe

Executes dropped EXE 1 IoCs

pid	Process
2716	cxholek.exe

Loads dropped DLL 2 IoCs

pid	Process
1668	f5872d0822d6722780b8c7968834d102_JaffaCakes118.exe
1668	f5872d0822d6722780b8c7968834d102_JaffaCakes118.exe

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral1/memory/1668-0-0x0000000000400000-0x000000000040F000-memory.dmp	upx
behavioral1/files/0x000b00000001413f-3.dat	upx
behavioral1/memory/1668-4-0x0000000000230000-0x000000000023F000-memory.dmp	upx
behavioral1/memory/2716-12-0x0000000000400000-0x000000000040F000-memory.dmp	upx
behavioral1/memory/1668-13-0x0000000000400000-0x000000000040F000-memory.dmp	upx

Drops file in System32 directory 3 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\cxhole.dll	f5872d0822d6722780b8c7968834d102_JaffaCakes118.exe
File created	C:\Windows\SysWOW64\cxholek.exe	f5872d0822d6722780b8c7968834d102_JaffaCakes118.exe
File opened for modification	C:\Windows\SysWOW64\cxholek.exe	f5872d0822d6722780b8c7968834d102_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 1668 wrote to memory of 2716	1668	f5872d0822d6722780b8c7968834d102_JaffaCakes118.exe	28
PID 1668 wrote to memory of 2716	1668	f5872d0822d6722780b8c7968834d102_JaffaCakes118.exe	28
PID 1668 wrote to memory of 2716	1668	f5872d0822d6722780b8c7968834d102_JaffaCakes118.exe	28
PID 1668 wrote to memory of 2716	1668	f5872d0822d6722780b8c7968834d102_JaffaCakes118.exe	28
PID 1668 wrote to memory of 2460	1668	f5872d0822d6722780b8c7968834d102_JaffaCakes118.exe	29
PID 1668 wrote to memory of 2460	1668	f5872d0822d6722780b8c7968834d102_JaffaCakes118.exe	29
PID 1668 wrote to memory of 2460	1668	f5872d0822d6722780b8c7968834d102_JaffaCakes118.exe	29
PID 1668 wrote to memory of 2460	1668	f5872d0822d6722780b8c7968834d102_JaffaCakes118.exe	29

C:\Users\Admin\AppData\Local\Temp\f5872d0822d6722780b8c7968834d102_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\f5872d0822d6722780b8c7968834d102_JaffaCakes118.exe"
1⤵
- Loads dropped DLL
- Drops file in System32 directory
- Suspicious use of WriteProcessMemory
PID:1668
- C:\Windows\SysWOW64\cxholek.exe
  C:\Windows\system32\cxholek.exe ˜‰
  2⤵
  - Executes dropped EXE
  PID:2716
- C:\Windows\SysWOW64\cmd.exe
  cmd /c C:\Users\Admin\AppData\Local\Temp\f5872d0822d6722780b8c7968834d102_JaffaCakes118.exe.bat
  2⤵
  - Deletes itself
  PID:2460

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

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\f5872d0822d6722780b8c7968834d102_JaffaCakes118.exe.bat

Filesize
210B

MD5
036634bb80125450ec67965203c310f4

SHA1
947c30e78dd78c095c87c476c5911ae9afadf56a

SHA256
e816ee2db2d7bdf10d5460ccccdad68773fd309294bde75e28a92461941d4591

SHA512
7f8155c3525800eee0516ab3282b0f4810185130b349a22b20961e5ea8c61ab8cb9493288ebde19885fc03a5aea3b9b5b36cbc07d508d4855efc202abb6430a5

Download Submit
\Windows\SysWOW64\cxholek.exe

Filesize
12KB

MD5
f5872d0822d6722780b8c7968834d102

SHA1
a45af00070027ab961267bb718f42b9b7d4da673

SHA256
8364bf90f2076d0c115abd6f1e545209c4e051ff4d5a8e639813b00905f99a3b

SHA512
88bc35bffd9e0d65584ea39521cf3049081ef66d0bcbb5b3136c7f0648dfd5a950edc26dbe816e4913515d9f0efd73f88fdf2988765dadd24003c1abd9b69840

Download Submit
memory/1668-0-0x0000000000400000-0x000000000040F000-memory.dmp

Filesize
60KB

Download
memory/1668-4-0x0000000000230000-0x000000000023F000-memory.dmp

Filesize
60KB

Download
memory/1668-11-0x0000000000230000-0x000000000023F000-memory.dmp

Filesize
60KB

Download
memory/1668-13-0x0000000000400000-0x000000000040F000-memory.dmp

Filesize
60KB

Download
memory/1668-17-0x0000000000230000-0x000000000023F000-memory.dmp

Filesize
60KB

Download
memory/2716-12-0x0000000000400000-0x000000000040F000-memory.dmp

Filesize
60KB

Download