d5d0b1345578ee41d59308f8431d05537364b88b2be6b857489906ed9d285fcb

Analysis

max time kernel
94s
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
09/10/2024, 07:40

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General

Target

2d5fef30a933722857943915e915fa36_JaffaCakes118.dll
Size

267KB
MD5

2d5fef30a933722857943915e915fa36
SHA1

a18e7d4c971fe989a16106f018df4c85c4d02cc4
SHA256

d5d0b1345578ee41d59308f8431d05537364b88b2be6b857489906ed9d285fcb
SHA512

a349583f0d166b9359da766ceb9f9202038aa329d1a52719543594501807b98c4c517beda870ef57be001b06e5b53ca4dc60b572ba59a4809d60f72048f4c8f7
SSDEEP

3072:C0NbrbkYHUyP9eECVWfpIhbWoVnW6IioARoKO7JurqeBTg4vRP86TvOB5n+90f//:JrkYHjIWeWcd71bynbe05kYv8Y

Score

7^/10

discovery upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
4180	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/memory/4180-4-0x0000000000400000-0x000000000046F000-memory.dmp	upx
behavioral2/files/0x000a000000023c64-3.dat	upx
behavioral2/memory/4180-8-0x0000000000400000-0x000000000046F000-memory.dmp	upx

Program crash 2 IoCs

pid	pid_target	Process	procid_target
4420	3924	WerFault.exe	83
1172	4180	WerFault.exe	84

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

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 1756 wrote to memory of 3924	1756	rundll32.exe	83
PID 1756 wrote to memory of 3924	1756	rundll32.exe	83
PID 1756 wrote to memory of 3924	1756	rundll32.exe	83
PID 3924 wrote to memory of 4180	3924	rundll32.exe	84
PID 3924 wrote to memory of 4180	3924	rundll32.exe	84
PID 3924 wrote to memory of 4180	3924	rundll32.exe	84

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\2d5fef30a933722857943915e915fa36_JaffaCakes118.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1756
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\2d5fef30a933722857943915e915fa36_JaffaCakes118.dll,#1
  2⤵
  - Drops file in System32 directory
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3924
- - C:\Windows\SysWOW64\rundll32mgr.exe
    C:\Windows\SysWOW64\rundll32mgr.exe
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:4180
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4180 -s 268
      4⤵
      Program crash
      PID:1172
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 3924 -s 616
    3⤵
    - Program crash
    PID:4420

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 3924 -ip 3924
1⤵
PID:3396

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 464 -p 4180 -ip 4180
1⤵
PID:4408

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\rundll32mgr.exe

Filesize
100KB

MD5
308f9d419f22b2ee22045d8de27f948f

SHA1
0550f68e09fbb61e19ebb7e538d1967604364453

SHA256
776c6ac33fa9b591d2eec946fb666919696845f09a633acfe8606c73e1999901

SHA512
8e36baf4c4f5c9f7bc001ae208abaa96a6d7d6e422823105abb1a8dc4a67e94da2506187cfe33929e018b6a88863d2be79057bfb227f56158a4c4a35f5b55ab8

Download Submit
memory/3924-1-0x00000000751D0000-0x0000000075218000-memory.dmp

Filesize
288KB

Download
memory/3924-7-0x00000000751D0000-0x0000000075218000-memory.dmp

Filesize
288KB

Download
memory/4180-4-0x0000000000400000-0x000000000046F000-memory.dmp

Filesize
444KB

Download
memory/4180-6-0x00000000004B0000-0x00000000004B1000-memory.dmp

Filesize
4KB

Download
memory/4180-8-0x0000000000400000-0x000000000046F000-memory.dmp

Filesize
444KB

Download