f6d982448b1d7eadb9bf17ecae6c020583d1751ec41a7bdaa2d12cf2fa34f59c

Analysis

max time kernel
94s
max time network
105s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
11/10/2024, 21:17

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General

Target

36da45a37d30043e157040e0725f1597_JaffaCakes118.dll
Size

144KB
MD5

36da45a37d30043e157040e0725f1597
SHA1

160917680c9be5d847c74f56dd0f0b5fe5580950
SHA256

f6d982448b1d7eadb9bf17ecae6c020583d1751ec41a7bdaa2d12cf2fa34f59c
SHA512

ffd89ec891eb1b383f902fcda8dcf15588a06f382c8eea008b19f6b026975d54251f5e7a031df0f34b2c3aaf32e0d5c7c1044404608b9eab90b2919ad4583c32
SSDEEP

3072:PibTTp78CclGbAqhMjW3Mfw534x3CtlGpuo:gT14TGAoMfTsHGj

Score

7^/10

discovery upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2676	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/0x000a000000023c24-3.dat	upx
behavioral2/memory/2676-4-0x0000000000400000-0x000000000046E000-memory.dmp	upx
behavioral2/memory/2676-9-0x0000000000400000-0x000000000046E000-memory.dmp	upx

Program crash 2 IoCs

pid	pid_target	Process	procid_target
664	2676	WerFault.exe	84
3528	2796	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 2836 wrote to memory of 2796	2836	rundll32.exe	83
PID 2836 wrote to memory of 2796	2836	rundll32.exe	83
PID 2836 wrote to memory of 2796	2836	rundll32.exe	83
PID 2796 wrote to memory of 2676	2796	rundll32.exe	84
PID 2796 wrote to memory of 2676	2796	rundll32.exe	84
PID 2796 wrote to memory of 2676	2796	rundll32.exe	84

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\36da45a37d30043e157040e0725f1597_JaffaCakes118.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2836
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\36da45a37d30043e157040e0725f1597_JaffaCakes118.dll,#1
  2⤵
  - Drops file in System32 directory
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2796
- - C:\Windows\SysWOW64\rundll32mgr.exe
    C:\Windows\SysWOW64\rundll32mgr.exe
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:2676
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2676 -s 264
      4⤵
      Program crash
      PID:664
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2796 -s 608
    3⤵
    - Program crash
    PID:3528

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 2676 -ip 2676
1⤵
PID:2832

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 2796 -ip 2796
1⤵
PID:2736

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
105KB

MD5
9b49fec7e03c33277f188a2819b8d726

SHA1
a7b6b4a0ecbeab9075c3e36ec2586ce8debbbc4f

SHA256
9d3a78f72dbd7351a999d6fd6f60b0c6ba79bc4279a347fd590af94a0224afad

SHA512
049a0971913562ca8a134ac889d4750c71d89fe070fadcb06dfc49401f1b9b508275921e55f3f27a31f34d520e96784d4a50959fa1aab6bad878e9e5ea61755d

Download Submit
memory/2676-4-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download
memory/2676-6-0x00000000005B0000-0x00000000005B1000-memory.dmp

Filesize
4KB

Download
memory/2676-9-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download
memory/2796-1-0x000000006D080000-0x000000006D0A4000-memory.dmp

Filesize
144KB

Download
memory/2796-7-0x000000006D080000-0x000000006D0A4000-memory.dmp

Filesize
144KB

Download