18f7f242adda93ed24ef888b33932124970cff5b6a3fba1d6ab6ac6c247c74a2

Analysis

max time kernel
96s
max time network
148s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
28-01-2025 02:07

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General

Target

JaffaCakes118_45c57c5b507b4606e97075a822387b2a.dll
Size

697KB
MD5

45c57c5b507b4606e97075a822387b2a
SHA1

02bb822134fcfdcd178dd6d36c324104f23de1aa
SHA256

18f7f242adda93ed24ef888b33932124970cff5b6a3fba1d6ab6ac6c247c74a2
SHA512

0999d3904c1f7abadb4aa0107007c236d953658eecbc90020721cd9b5b118b856babd9cc8fe0beadb265534e40b57a09901c89eab6f0f0dead05c4b4d379717f
SSDEEP

12288:0hJDUanWzEp4226DQA1p6eH4hurcMY9K5opGkh9GXxAv+MnGKCdlGJou6fERxRCp:0hhBWzEp4yDQA1p6eYhugNo5d42Ov+M7

Score

7^/10

discovery upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
1560	rundll32Srv.exe

Drops file in System32 directory 1 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\rundll32Srv.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/1560-5-0x0000000000400000-0x000000000042F000-memory.dmp	upx
behavioral2/memory/1560-7-0x0000000000400000-0x000000000042F000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
5080	1468	WerFault.exe	82

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	rundll32Srv.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 1560	1468	rundll32.exe	83
PID 1468 wrote to memory of 1560	1468	rundll32.exe	83
PID 1468 wrote to memory of 1560	1468	rundll32.exe	83

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_45c57c5b507b4606e97075a822387b2a.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:384
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_45c57c5b507b4606e97075a822387b2a.dll,#1
  2⤵
  - Drops file in System32 directory
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1468
- - C:\Windows\SysWOW64\rundll32Srv.exe
    C:\Windows\SysWOW64\rundll32Srv.exe
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:1560
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 1468 -s 632
    3⤵
    - Program crash
    PID:5080

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1468 -ip 1468
1⤵
PID:4604

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\rundll32Srv.exe

Filesize
61KB

MD5
1e28b93df4dc13ba183d7cac665bc45e

SHA1
9f91ec079b5033516398e65970431602ba51647c

SHA256
e6db1aa577d981ff37dffc63cf7496a94db52e27c035f59983236cf1117becaf

SHA512
f133fd3ce7ddc48f090f3f94c98ea8b3b6ad017fc774c43d691176fe3f18a499de890be3aaaadd36299df41ea0f705a7375a6772409efccd11991bc49e4d7331

Download Submit
memory/1468-0-0x0000000062C70000-0x0000000062D23000-memory.dmp

Filesize
716KB

Download
memory/1468-8-0x0000000062C70000-0x0000000062D23000-memory.dmp

Filesize
716KB

Download
memory/1560-5-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1560-6-0x00000000006D0000-0x00000000006E0000-memory.dmp

Filesize
64KB

Download
memory/1560-7-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download