7363886e017a69013eb9b8a70a1086518e9505567107d4669380e79c1fe0092b

Analysis

max time kernel
96s
max time network
97s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
01-01-2025 11:43

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General

Target

JaffaCakes118_53c7db52af5bd29f832f435d4bacfe30.dll
Size

524KB
MD5

53c7db52af5bd29f832f435d4bacfe30
SHA1

bb803b987c0ea79fd4887dafa9c1eef11e176b3a
SHA256

7363886e017a69013eb9b8a70a1086518e9505567107d4669380e79c1fe0092b
SHA512

eeeae73a21dbf6aa2c809d47c72cb33a9c499d91fdeea69817a4385e0387ccad1cfd6f25c70d08fe73d99c22dd2b84041a6b5f80e0d0af13c0b3fb936bbc71e0
SSDEEP

12288:iV7LMzw56Wx1Dk/qon6xyYhgPFaUVltjsHIZsCuGd:01oC3yWgPFGHI2a

Score

7^/10

discovery upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2584	rundll32mgr.exe

Drops file in System32 directory 1 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\rundll32mgr.exe	rundll32.exe

UPX packed file 3 IoCs

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

upx

resource	yara_rule
behavioral2/files/0x000c000000023b1b-3.dat	upx
behavioral2/memory/2584-4-0x0000000000400000-0x0000000000456000-memory.dmp	upx
behavioral2/memory/2584-7-0x0000000000400000-0x0000000000456000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
4520	2584	WerFault.exe	83

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	rundll32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rundll32mgr.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 384 wrote to memory of 1468	384	rundll32.exe	82
PID 384 wrote to memory of 1468	384	rundll32.exe	82
PID 384 wrote to memory of 1468	384	rundll32.exe	82
PID 1468 wrote to memory of 2584	1468	rundll32.exe	83
PID 1468 wrote to memory of 2584	1468	rundll32.exe	83
PID 1468 wrote to memory of 2584	1468	rundll32.exe	83

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_53c7db52af5bd29f832f435d4bacfe30.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:384
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_53c7db52af5bd29f832f435d4bacfe30.dll,#1
  2⤵
  - Drops file in System32 directory
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1468
- - C:\Windows\SysWOW64\rundll32mgr.exe
    C:\Windows\SysWOW64\rundll32mgr.exe
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:2584
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2584 -s 264
      4⤵
      Program crash
      PID:4520

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 360 -p 2584 -ip 2584
1⤵
PID:4088

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\rundll32mgr.exe

Filesize
125KB

MD5
12d840fc0b79a745c013e73c4c470467

SHA1
f47b3c28974d6199e596c365f5e7161656480100

SHA256
7ee9098ea2bc30eaea20eceb5e8cda620772c4ba2d7d6945e34ea93fb6054ccb

SHA512
de5f3cb695f1a10d897968668ea403721e09f9c66db796d932b8152edb1681dbac777efb63a2cff9d81380d09452f90470a8b77363a99f21421b9ff61fcb930a

Download Submit
memory/1468-0-0x0000000010000000-0x00000000100B6000-memory.dmp

Filesize
728KB

Download
memory/2584-4-0x0000000000400000-0x0000000000456000-memory.dmp

Filesize
344KB

Download
memory/2584-6-0x00000000004A0000-0x00000000004A1000-memory.dmp

Filesize
4KB

Download
memory/2584-7-0x0000000000400000-0x0000000000456000-memory.dmp

Filesize
344KB

Download