edc97f73c93341578bd55317ec24c106ee486605f5e482dba55a85ea297efd1a

Analysis

max time kernel
138s
max time network
116s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
10/08/2024, 15:18

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General

Target

8694793414a91be1873a6f9845305bd0_JaffaCakes118.exe
Size

45KB
MD5

8694793414a91be1873a6f9845305bd0
SHA1

d81ef4e60d018e5543e293415f95d62c5cbe28bd
SHA256

edc97f73c93341578bd55317ec24c106ee486605f5e482dba55a85ea297efd1a
SHA512

82fe68ea6db56aa1e0489935b1da424d370ab81dbf69457c0de46c637fac0d1bdf74bba202e2f5bfc5315e8bbfe00a178fdc0148879342114daf38766c949792
SSDEEP

768:aWJiOyO34KVT2LfjGmW9TD5evGQX1X/BHR4FhddZrsim0UpvEUPK17G2wk9n3DWf:dw9Ih2LqmuDuX1X/BGFDLLG2v9zS

Score

7^/10

discovery upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
4352	wuaucltl.exe

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4608-0-0x0000000000400000-0x000000000041E000-memory.dmp	upx
behavioral2/files/0x00090000000233dc-4.dat	upx
behavioral2/memory/4608-7-0x0000000000400000-0x000000000041E000-memory.dmp	upx
behavioral2/memory/4352-8-0x0000000000400000-0x000000000041E000-memory.dmp	upx

Drops file in System32 directory 3 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\wuaucltl.exe	8694793414a91be1873a6f9845305bd0_JaffaCakes118.exe
File opened for modification	C:\Windows\SysWOW64\wuaucltl.exe	8694793414a91be1873a6f9845305bd0_JaffaCakes118.exe
File created	C:\Windows\SysWOW64\pshelp.dll	8694793414a91be1873a6f9845305bd0_JaffaCakes118.exe

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	8694793414a91be1873a6f9845305bd0_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	wuaucltl.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4352 wrote to memory of 1640	4352	wuaucltl.exe	85
PID 4352 wrote to memory of 1640	4352	wuaucltl.exe	85
PID 4352 wrote to memory of 1640	4352	wuaucltl.exe	85

C:\Users\Admin\AppData\Local\Temp\8694793414a91be1873a6f9845305bd0_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\8694793414a91be1873a6f9845305bd0_JaffaCakes118.exe"
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
PID:4608

C:\Windows\SysWOW64\wuaucltl.exe
C:\Windows\SysWOW64\wuaucltl.exe
1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4352
- C:\Program Files\Internet Explorer\IEXPLORE.EXE
  "C:\Program Files\Internet Explorer\IEXPLORE.EXE"
  2⤵
  PID:1640

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Windows\SysWOW64\wuaucltl.exe

Filesize
45KB

MD5
8694793414a91be1873a6f9845305bd0

SHA1
d81ef4e60d018e5543e293415f95d62c5cbe28bd

SHA256
edc97f73c93341578bd55317ec24c106ee486605f5e482dba55a85ea297efd1a

SHA512
82fe68ea6db56aa1e0489935b1da424d370ab81dbf69457c0de46c637fac0d1bdf74bba202e2f5bfc5315e8bbfe00a178fdc0148879342114daf38766c949792

Download Submit
memory/4352-8-0x0000000000400000-0x000000000041E000-memory.dmp

Filesize
120KB

Download
memory/4608-0-0x0000000000400000-0x000000000041E000-memory.dmp

Filesize
120KB

Download
memory/4608-7-0x0000000000400000-0x000000000041E000-memory.dmp

Filesize
120KB

Download