717799cfdb68ccf5879c8ff7a39352f4a47998ceebb1851b56323e55404c5de7

General

Target

b98350258bbb1c4f0abbafb8e3486186_JaffaCakes118.exe
Size

326KB
MD5

b98350258bbb1c4f0abbafb8e3486186
SHA1

f5a9e9fc368ed0b2c8b423a8c84993bed035917d
SHA256

717799cfdb68ccf5879c8ff7a39352f4a47998ceebb1851b56323e55404c5de7
SHA512

11b432ffe06aaf1cc5acfb45b7e3104a815b77f0a4aeebfa737bd0784134fb4a513ab25ad5fb558504d4edaa305dd1e8f414922f619db28f9f6024a0a31ef7fa
SSDEEP

6144:foTmipaGKlEV+tZG0xa3NLKCy8eBbUxQRTJdB9K3yfl7UEyeoS+:f7ipaGeEaY1dL3ybBb5t59Iyt7v3oS

Score

7^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2772	services

Loads dropped DLL 6 IoCs

pid	Process
1984	b98350258bbb1c4f0abbafb8e3486186_JaffaCakes118.exe
1984	b98350258bbb1c4f0abbafb8e3486186_JaffaCakes118.exe
2904	WerFault.exe
2904	WerFault.exe
2904	WerFault.exe
2904	WerFault.exe

UPX packed file 17 IoCs

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

upx

resource	yara_rule
behavioral1/memory/1984-0-0x0000000000400000-0x00000000004F0000-memory.dmp	upx
behavioral1/files/0x0008000000019950-4.dat	upx
behavioral1/memory/2772-12-0x0000000000400000-0x00000000004F0000-memory.dmp	upx
behavioral1/memory/1984-11-0x0000000003020000-0x0000000003110000-memory.dmp	upx
behavioral1/memory/1984-16-0x0000000000400000-0x00000000004F0000-memory.dmp	upx
behavioral1/memory/2772-17-0x0000000000400000-0x00000000004F0000-memory.dmp	upx
behavioral1/memory/2772-18-0x0000000000400000-0x00000000004F0000-memory.dmp	upx
behavioral1/memory/2772-20-0x0000000000400000-0x00000000004F0000-memory.dmp	upx
behavioral1/memory/2772-21-0x0000000000400000-0x00000000004F0000-memory.dmp	upx
behavioral1/memory/2772-22-0x0000000000400000-0x00000000004F0000-memory.dmp	upx
behavioral1/memory/2772-23-0x0000000000400000-0x00000000004F0000-memory.dmp	upx
behavioral1/memory/2772-24-0x0000000000400000-0x00000000004F0000-memory.dmp	upx
behavioral1/memory/2772-25-0x0000000000400000-0x00000000004F0000-memory.dmp	upx
behavioral1/memory/2772-27-0x0000000000400000-0x00000000004F0000-memory.dmp	upx
behavioral1/memory/2772-28-0x0000000000400000-0x00000000004F0000-memory.dmp	upx
behavioral1/memory/2772-29-0x0000000000400000-0x00000000004F0000-memory.dmp	upx
behavioral1/memory/2772-34-0x0000000000400000-0x00000000004F0000-memory.dmp	upx

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\MicrosoftWinUpdate = "C:\\Users\\Admin\\AppData\\Roaming\\spoolsv.exe"	reg.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\Windows\8222024113750.exe	b98350258bbb1c4f0abbafb8e3486186_JaffaCakes118.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2904	2772	WerFault.exe	32

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	reg.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	services
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	b98350258bbb1c4f0abbafb8e3486186_JaffaCakes118.exe

Modifies registry key 1 TTPs 1 IoCs

Modify Registry

T1112

pid	Process
2316	reg.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2772	services

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 1984 wrote to memory of 2316	1984	b98350258bbb1c4f0abbafb8e3486186_JaffaCakes118.exe	30
PID 1984 wrote to memory of 2316	1984	b98350258bbb1c4f0abbafb8e3486186_JaffaCakes118.exe	30
PID 1984 wrote to memory of 2316	1984	b98350258bbb1c4f0abbafb8e3486186_JaffaCakes118.exe	30
PID 1984 wrote to memory of 2316	1984	b98350258bbb1c4f0abbafb8e3486186_JaffaCakes118.exe	30
PID 1984 wrote to memory of 2772	1984	b98350258bbb1c4f0abbafb8e3486186_JaffaCakes118.exe	32
PID 1984 wrote to memory of 2772	1984	b98350258bbb1c4f0abbafb8e3486186_JaffaCakes118.exe	32
PID 1984 wrote to memory of 2772	1984	b98350258bbb1c4f0abbafb8e3486186_JaffaCakes118.exe	32
PID 1984 wrote to memory of 2772	1984	b98350258bbb1c4f0abbafb8e3486186_JaffaCakes118.exe	32
PID 2772 wrote to memory of 2904	2772	services	33
PID 2772 wrote to memory of 2904	2772	services	33
PID 2772 wrote to memory of 2904	2772	services	33
PID 2772 wrote to memory of 2904	2772	services	33

C:\Users\Admin\AppData\Local\Temp\b98350258bbb1c4f0abbafb8e3486186_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\b98350258bbb1c4f0abbafb8e3486186_JaffaCakes118.exe"
1⤵
- Loads dropped DLL
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1984
- C:\Windows\SysWOW64\reg.exe
  reg add HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Run /v MicrosoftWinUpdate /d C:\Users\Admin\AppData\Roaming\spoolsv.exe /f
  2⤵
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Modifies registry key
  PID:2316
- C:\Users\Admin\AppData\Local\Temp\services
  C:\Users\Admin\AppData\Local\Temp\services
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of WriteProcessMemory
  PID:2772
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2772 -s 776
    3⤵
    - Loads dropped DLL
    - Program crash
    PID:2904

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

2

T1112

Credential Access

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

\Users\Admin\AppData\Local\Temp\services

Filesize
326KB

MD5
b98350258bbb1c4f0abbafb8e3486186

SHA1
f5a9e9fc368ed0b2c8b423a8c84993bed035917d

SHA256
717799cfdb68ccf5879c8ff7a39352f4a47998ceebb1851b56323e55404c5de7

SHA512
11b432ffe06aaf1cc5acfb45b7e3104a815b77f0a4aeebfa737bd0784134fb4a513ab25ad5fb558504d4edaa305dd1e8f414922f619db28f9f6024a0a31ef7fa

Download Submit
memory/1984-16-0x0000000000400000-0x00000000004F0000-memory.dmp

Filesize
960KB

Download
memory/1984-1-0x00000000003A0000-0x00000000003A1000-memory.dmp

Filesize
4KB

Download
memory/1984-13-0x0000000003020000-0x0000000003110000-memory.dmp

Filesize
960KB

Download
memory/1984-0-0x0000000000400000-0x00000000004F0000-memory.dmp

Filesize
960KB

Download
memory/1984-11-0x0000000003020000-0x0000000003110000-memory.dmp

Filesize
960KB

Download
memory/2772-18-0x0000000000400000-0x00000000004F0000-memory.dmp

Filesize
960KB

Download
memory/2772-22-0x0000000000400000-0x00000000004F0000-memory.dmp

Filesize
960KB

Download
memory/2772-17-0x0000000000400000-0x00000000004F0000-memory.dmp

Filesize
960KB

Download
memory/2772-19-0x0000000000220000-0x0000000000221000-memory.dmp

Filesize
4KB

Download
memory/2772-12-0x0000000000400000-0x00000000004F0000-memory.dmp

Filesize
960KB

Download
memory/2772-20-0x0000000000400000-0x00000000004F0000-memory.dmp

Filesize
960KB

Download
memory/2772-21-0x0000000000400000-0x00000000004F0000-memory.dmp

Filesize
960KB

Download
memory/2772-14-0x0000000000220000-0x0000000000221000-memory.dmp

Filesize
4KB

Download
memory/2772-23-0x0000000000400000-0x00000000004F0000-memory.dmp

Filesize
960KB

Download
memory/2772-24-0x0000000000400000-0x00000000004F0000-memory.dmp

Filesize
960KB

Download
memory/2772-25-0x0000000000400000-0x00000000004F0000-memory.dmp

Filesize
960KB

Download
memory/2772-27-0x0000000000400000-0x00000000004F0000-memory.dmp

Filesize
960KB

Download
memory/2772-28-0x0000000000400000-0x00000000004F0000-memory.dmp

Filesize
960KB

Download
memory/2772-29-0x0000000000400000-0x00000000004F0000-memory.dmp

Filesize
960KB

Download
memory/2772-34-0x0000000000400000-0x00000000004F0000-memory.dmp

Filesize
960KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads