1e2813f4a23f085eb4812095a26d592902cda2582e190e162c3f7dc3825c5c1b

Analysis

max time kernel
95s
max time network
96s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
12/10/2024, 01:19

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General

Target

37c28dd5c1e185c5cded257ad6c91c03_JaffaCakes118.exe
Size

16KB
MD5

37c28dd5c1e185c5cded257ad6c91c03
SHA1

3f84157f5bbfeebd135220130a8b0bd616017545
SHA256

1e2813f4a23f085eb4812095a26d592902cda2582e190e162c3f7dc3825c5c1b
SHA512

f7cab8fc08ff970577b6a1b79743fbedb53eb4318394f6e0c54efc575c709d55b74d33c3bf7e0b7ad5c1b625a384538ee1434caf460eb158e5352efc08ed3b41
SSDEEP

384:5wP9YbWZbqSmvklj4kHwxVNECwodNyPVuXzFsY:2VYK4BvkljwxoC5h

Score

10^/10

discovery persistence upx

Malware Config

Signatures

Adds autorun key to be loaded by Explorer.exe on startup 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\ShellServiceObjectDelayLoad	37c28dd5c1e185c5cded257ad6c91c03_JaffaCakes118.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\ShellServiceObjectDelayLoad\mtkle = "{139EDF6B-E790-466F-0A89-582C56D48C1F}"	37c28dd5c1e185c5cded257ad6c91c03_JaffaCakes118.exe

Drops file in Drivers directory 1 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\drivers\ndisrd.sys	37c28dd5c1e185c5cded257ad6c91c03_JaffaCakes118.exe

Loads dropped DLL 1 IoCs

pid	Process
3432	37c28dd5c1e185c5cded257ad6c91c03_JaffaCakes118.exe

Drops file in System32 directory 1 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\zcsav32.dll	37c28dd5c1e185c5cded257ad6c91c03_JaffaCakes118.exe

UPX packed file 2 IoCs

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

upx

resource	yara_rule
behavioral2/memory/3432-0-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3432-7-0x0000000000400000-0x000000000040B000-memory.dmp	upx

System Location Discovery: System Language Discovery 1 TTPs 1 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	37c28dd5c1e185c5cded257ad6c91c03_JaffaCakes118.exe

Modifies registry class 5 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{139EDF6B-E790-466F-0A89-582C56D48C1F}	37c28dd5c1e185c5cded257ad6c91c03_JaffaCakes118.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{139EDF6B-E790-466F-0A89-582C56D48C1F}\	37c28dd5c1e185c5cded257ad6c91c03_JaffaCakes118.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{139EDF6B-E790-466F-0A89-582C56D48C1F}\InprocServer32	37c28dd5c1e185c5cded257ad6c91c03_JaffaCakes118.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{139EDF6B-E790-466F-0A89-582C56D48C1F}\InprocServer32\ = "C:\\Windows\\SysWow64\\zcsav32.dll"	37c28dd5c1e185c5cded257ad6c91c03_JaffaCakes118.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{139EDF6B-E790-466F-0A89-582C56D48C1F}\InprocServer32\ThreadingModel = "Apartment"	37c28dd5c1e185c5cded257ad6c91c03_JaffaCakes118.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
3432	37c28dd5c1e185c5cded257ad6c91c03_JaffaCakes118.exe
3432	37c28dd5c1e185c5cded257ad6c91c03_JaffaCakes118.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
3432	37c28dd5c1e185c5cded257ad6c91c03_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 1 IoCs

description	pid	Process	procid_target
PID 3432 wrote to memory of 3540	3432	37c28dd5c1e185c5cded257ad6c91c03_JaffaCakes118.exe	56

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:3540
- C:\Users\Admin\AppData\Local\Temp\37c28dd5c1e185c5cded257ad6c91c03_JaffaCakes118.exe
  "C:\Users\Admin\AppData\Local\Temp\37c28dd5c1e185c5cded257ad6c91c03_JaffaCakes118.exe"
  2⤵
  - Adds autorun key to be loaded by Explorer.exe on startup
  - Drops file in Drivers directory
  - Loads dropped DLL
  - Drops file in System32 directory
  - System Location Discovery: System Language Discovery
  - Modifies registry class
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of WriteProcessMemory
  PID:3432

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

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Windows\SysWOW64\zcsav32.dll

Filesize
10KB

MD5
8bf32bb81490a0c0428ff8b6f59ee042

SHA1
959550372bfb3e254057c750bf858df375e8848e

SHA256
f48fedceac21e1b76871f30d84786d2bc3c6de854d0d58ea3f6a53f6f16a03db

SHA512
9caeefa2a2d275983b29a8fc454e3fa140b0217533d9102f722381bbf3d6a76db708de7d4da3c6ec1687c9896752e8c5137276ee2db0b0eaa903bb9dde8b6b48

Download Submit
memory/3432-0-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3432-4-0x0000000073250000-0x0000000073255000-memory.dmp

Filesize
20KB

Download
memory/3432-7-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3432-14-0x0000000073250000-0x0000000073255000-memory.dmp

Filesize
20KB

Download