558a6090fd96231499bb27b5088f152fc406ef887c95fc7b56ff5fd458a8cd68

Analysis

max time kernel
93s
max time network
142s
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 07:04

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General

Target

JaffaCakes118_4b98ed88ff4d3d5316edcd208927c550.dll
Size

223KB
MD5

4b98ed88ff4d3d5316edcd208927c550
SHA1

779300e9c27709ac5a0ee4ee3e53336cc964ab0a
SHA256

558a6090fd96231499bb27b5088f152fc406ef887c95fc7b56ff5fd458a8cd68
SHA512

fda144f08ccb4495a6ea853153da43b5c09e18d1da441d9fbe7201c0c0cf79fe7389c220cdd69d768b90d6ccd7ef7d4a17f6d0b73accf31c5152fcd8bbfa2e3f
SSDEEP

3072:+TU56gVxj27NPr6pgRzuWdkiuwoAzpJc+mQyjn/sfBwqq6AfC1u7MGggagZRI7:V4TryWdj5zp+0/ZL6fC1u1t4

Score

7^/10

discovery upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
1980	regsvr32mgr.exe

Drops file in System32 directory 1 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\regsvr32mgr.exe	regsvr32.exe

UPX packed file 3 IoCs

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

upx

resource	yara_rule
behavioral2/files/0x0009000000023c86-3.dat	upx
behavioral2/memory/1980-4-0x0000000000400000-0x0000000000462000-memory.dmp	upx
behavioral2/memory/1980-7-0x0000000000400000-0x0000000000462000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
4856	1980	WerFault.exe	86

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	regsvr32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	regsvr32mgr.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 3656 wrote to memory of 220	3656	regsvr32.exe	85
PID 3656 wrote to memory of 220	3656	regsvr32.exe	85
PID 3656 wrote to memory of 220	3656	regsvr32.exe	85
PID 220 wrote to memory of 1980	220	regsvr32.exe	86
PID 220 wrote to memory of 1980	220	regsvr32.exe	86
PID 220 wrote to memory of 1980	220	regsvr32.exe	86

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_4b98ed88ff4d3d5316edcd208927c550.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:3656
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_4b98ed88ff4d3d5316edcd208927c550.dll
  2⤵
  - Drops file in System32 directory
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:220
- - C:\Windows\SysWOW64\regsvr32mgr.exe
    C:\Windows\SysWOW64\regsvr32mgr.exe
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:1980
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1980 -s 264
      4⤵
      Program crash
      PID:4856

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1980 -ip 1980
1⤵
PID:2324

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

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Downloads

C:\Windows\SysWOW64\regsvr32mgr.exe

Filesize
153KB

MD5
fd43bd3f881b1413d66a1a45ad48a7d9

SHA1
550bda81a39c3424106513d3cdaa373ec78dcbc0

SHA256
d0e58328e1ec0c03717d332094088c3e05aa1a734178e050dcad5a240443962b

SHA512
f77148a90a1a51aa9d2802f70ef7f908ccac05e8f8584ebf23ec20e7dff3015ef6d45f6591ffb2ffe2cf3cc1587f287756b6ee882d309d94b25d9997ec567b04

Download Submit
memory/220-0-0x0000000074A00000-0x0000000074A3A000-memory.dmp

Filesize
232KB

Download
memory/1980-4-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/1980-6-0x0000000002070000-0x0000000002071000-memory.dmp

Filesize
4KB

Download
memory/1980-7-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download