51a139835bd2fa8a8f6e8f1fcd6c331f5128114f7bd2d9c1c24f6f0ecb50286b

Analysis

max time kernel
150s
max time network
122s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
23/08/2024, 07:00

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General

Target

bac0b9b7b39bcd9524e6d7cd6bb8681a_JaffaCakes118.exe
Size

12KB
MD5

bac0b9b7b39bcd9524e6d7cd6bb8681a
SHA1

ccfb1039be0296335d6a21f6abfed8ea53a58fae
SHA256

51a139835bd2fa8a8f6e8f1fcd6c331f5128114f7bd2d9c1c24f6f0ecb50286b
SHA512

b5e929ba5e40469094246e7e1bdda5445e86cc4be641a8efbf2ef4bfa2a0baa90b7b8e12338304963c7844e058c4b6b975b3833741ca3b218e6994df9fc6a806
SSDEEP

192:Rpn5Hvx9kUYCh3ZF5Lrrl4aSm0d8etJ4arw7Y0wkm6rcgx6OsmjoNL927aYVFe0k:D5Hvx9kUlh3ZF5Lr2axWiJcgx6OsmjJ4

Score

8^/10

discovery persistence privilege_escalation upx

Malware Config

Signatures

Event Triggered Execution: AppInit DLLs 1 TTPs
Adversaries may establish persistence and/or elevate privileges by executing malicious content triggered by AppInit DLLs loaded into processes.
persistence privilege_escalation

AppInit DLLs
T1546.010

Executes dropped EXE 1 IoCs

pid	Process
2552	fliecodsk.exe

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral2/memory/2624-0-0x0000000000400000-0x000000000040F000-memory.dmp	upx
behavioral2/files/0x00070000000234d0-4.dat	upx
behavioral2/memory/2624-6-0x0000000000400000-0x000000000040F000-memory.dmp	upx
behavioral2/memory/2552-8-0x0000000000400000-0x000000000040F000-memory.dmp	upx

Drops file in System32 directory 3 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\fliecods.dll	bac0b9b7b39bcd9524e6d7cd6bb8681a_JaffaCakes118.exe
File created	C:\Windows\SysWOW64\fliecodsk.exe	bac0b9b7b39bcd9524e6d7cd6bb8681a_JaffaCakes118.exe
File opened for modification	C:\Windows\SysWOW64\fliecodsk.exe	bac0b9b7b39bcd9524e6d7cd6bb8681a_JaffaCakes118.exe

System Location Discovery: System Language Discovery 1 TTPs 3 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	bac0b9b7b39bcd9524e6d7cd6bb8681a_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	fliecodsk.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2624 wrote to memory of 2552	2624	bac0b9b7b39bcd9524e6d7cd6bb8681a_JaffaCakes118.exe	84
PID 2624 wrote to memory of 2552	2624	bac0b9b7b39bcd9524e6d7cd6bb8681a_JaffaCakes118.exe	84
PID 2624 wrote to memory of 2552	2624	bac0b9b7b39bcd9524e6d7cd6bb8681a_JaffaCakes118.exe	84
PID 2624 wrote to memory of 1484	2624	bac0b9b7b39bcd9524e6d7cd6bb8681a_JaffaCakes118.exe	97
PID 2624 wrote to memory of 1484	2624	bac0b9b7b39bcd9524e6d7cd6bb8681a_JaffaCakes118.exe	97
PID 2624 wrote to memory of 1484	2624	bac0b9b7b39bcd9524e6d7cd6bb8681a_JaffaCakes118.exe	97

C:\Users\Admin\AppData\Local\Temp\bac0b9b7b39bcd9524e6d7cd6bb8681a_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\bac0b9b7b39bcd9524e6d7cd6bb8681a_JaffaCakes118.exe"
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2624
- C:\Windows\SysWOW64\fliecodsk.exe
  C:\Windows\system32\fliecodsk.exe ˜‰
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:2552
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c C:\Users\Admin\AppData\Local\Temp\bac0b9b7b39bcd9524e6d7cd6bb8681a_JaffaCakes118.exe.bat
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1484

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Event Triggered Execution

T1546

AppInit DLLs

T1546.010

Privilege Escalation

Event Triggered Execution

T1546

AppInit DLLs

T1546.010

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:\Users\Admin\AppData\Local\Temp\bac0b9b7b39bcd9524e6d7cd6bb8681a_JaffaCakes118.exe.bat

Filesize
210B

MD5
41195385482c175fbb7eb1b142634c3c

SHA1
8dd6d3d146d4081ff37a3c960c9b779856038d98

SHA256
77604b4b26bd3001ff8d42609174b8942a349897e5a99a4fe0a66790bdf50741

SHA512
8182c6633b4e4b20ffab5dc3c557ff5b21287506a41bb4c9e1659d8a197fe3726a6baaaecf051dc353482826690c2fec1dbf53826ec811164a55ce602f975948

Download Submit
C:\Windows\SysWOW64\fliecodsk.exe

Filesize
12KB

MD5
bac0b9b7b39bcd9524e6d7cd6bb8681a

SHA1
ccfb1039be0296335d6a21f6abfed8ea53a58fae

SHA256
51a139835bd2fa8a8f6e8f1fcd6c331f5128114f7bd2d9c1c24f6f0ecb50286b

SHA512
b5e929ba5e40469094246e7e1bdda5445e86cc4be641a8efbf2ef4bfa2a0baa90b7b8e12338304963c7844e058c4b6b975b3833741ca3b218e6994df9fc6a806

Download Submit
memory/2552-8-0x0000000000400000-0x000000000040F000-memory.dmp

Filesize
60KB

Download
memory/2624-0-0x0000000000400000-0x000000000040F000-memory.dmp

Filesize
60KB

Download
memory/2624-6-0x0000000000400000-0x000000000040F000-memory.dmp

Filesize
60KB

Download