d50056163047656eabb1ac7598702e642935d1268620aaea30bf999e27aee4b9

General

Target

f9ee55eea4d0b0323e4b83ef456693bd_JaffaCakes118.exe
Size

704KB
MD5

f9ee55eea4d0b0323e4b83ef456693bd
SHA1

37de351e2524bceeef391087dbeeae84525855d2
SHA256

d50056163047656eabb1ac7598702e642935d1268620aaea30bf999e27aee4b9
SHA512

e96965f66d01ef63f18c2d84e8825735b6fa71c2d08a7df20e77a3d13fc6d5d5ae90696e48f53c317f406696d63d4ba8cdaf7f8336c1e111f70453b6ee111831
SSDEEP

12288:2Lb58E2pBHGpQiKpBIuZNNidsRInBZqpzUF4AnjZnMei/SFfdYTQcXUW8D:EeJpBniKpBPzYzqtURjZnli5kzt

Score

7^/10

discovery upx

Malware Config

Signatures

Checks BIOS information in registry 2 TTPs 2 IoCs

BIOS information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	f9ee55eea4d0b0323e4b83ef456693bd_JaffaCakes118.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosDate	f9ee55eea4d0b0323e4b83ef456693bd_JaffaCakes118.exe

UPX packed file 6 IoCs

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

upx

resource	yara_rule
behavioral2/memory/2100-0-0x0000000000400000-0x00000000004EF000-memory.dmp	upx
behavioral2/memory/2912-2-0x0000000000400000-0x00000000004EF000-memory.dmp	upx
behavioral2/memory/2912-10-0x0000000000400000-0x00000000004EF000-memory.dmp	upx
behavioral2/memory/2912-11-0x0000000000400000-0x00000000004EF000-memory.dmp	upx
behavioral2/memory/2912-17-0x0000000000400000-0x00000000004EF000-memory.dmp	upx
behavioral2/memory/2100-15-0x0000000000400000-0x00000000004EF000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
4380	2912	WerFault.exe	82

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	f9ee55eea4d0b0323e4b83ef456693bd_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	f9ee55eea4d0b0323e4b83ef456693bd_JaffaCakes118.exe

Modifies registry class 5 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{BD211730-848A-F6FE-25B7-CBFA4A410CDA}	f9ee55eea4d0b0323e4b83ef456693bd_JaffaCakes118.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{BD211730-848A-F6FE-25B7-CBFA4A410CDA}\ = "CLSID_MIMEBinHexDecoder"	f9ee55eea4d0b0323e4b83ef456693bd_JaffaCakes118.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{BD211730-848A-F6FE-25B7-CBFA4A410CDA}\InProcServer32	f9ee55eea4d0b0323e4b83ef456693bd_JaffaCakes118.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{BD211730-848A-F6FE-25B7-CBFA4A410CDA}\InProcServer32\ = "%SystemRoot%\\SysWow64\\exsmime.dll"	f9ee55eea4d0b0323e4b83ef456693bd_JaffaCakes118.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{BD211730-848A-F6FE-25B7-CBFA4A410CDA}\InProcServer32\ThreadingModel = "Both"	f9ee55eea4d0b0323e4b83ef456693bd_JaffaCakes118.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: 33	2912	f9ee55eea4d0b0323e4b83ef456693bd_JaffaCakes118.exe
Token: SeIncBasePriorityPrivilege	2912	f9ee55eea4d0b0323e4b83ef456693bd_JaffaCakes118.exe
Token: 33	2912	f9ee55eea4d0b0323e4b83ef456693bd_JaffaCakes118.exe
Token: SeIncBasePriorityPrivilege	2912	f9ee55eea4d0b0323e4b83ef456693bd_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2100 wrote to memory of 2912	2100	f9ee55eea4d0b0323e4b83ef456693bd_JaffaCakes118.exe	82
PID 2100 wrote to memory of 2912	2100	f9ee55eea4d0b0323e4b83ef456693bd_JaffaCakes118.exe	82
PID 2100 wrote to memory of 2912	2100	f9ee55eea4d0b0323e4b83ef456693bd_JaffaCakes118.exe	82
PID 2100 wrote to memory of 2912	2100	f9ee55eea4d0b0323e4b83ef456693bd_JaffaCakes118.exe	82
PID 2100 wrote to memory of 2912	2100	f9ee55eea4d0b0323e4b83ef456693bd_JaffaCakes118.exe	82
PID 2100 wrote to memory of 2912	2100	f9ee55eea4d0b0323e4b83ef456693bd_JaffaCakes118.exe	82

C:\Users\Admin\AppData\Local\Temp\f9ee55eea4d0b0323e4b83ef456693bd_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\f9ee55eea4d0b0323e4b83ef456693bd_JaffaCakes118.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2100
- C:\Users\Admin\AppData\Local\Temp\f9ee55eea4d0b0323e4b83ef456693bd_JaffaCakes118.exe
  "C:\Users\Admin\AppData\Local\Temp\f9ee55eea4d0b0323e4b83ef456693bd_JaffaCakes118.exe"
  2⤵
  - Checks BIOS information in registry
  - System Location Discovery: System Language Discovery
  - Modifies registry class
  - Suspicious use of AdjustPrivilegeToken
  PID:2912
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2912 -s 920
    3⤵
    - Program crash
    PID:4380

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 2912 -ip 2912
1⤵
PID:3604

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/2100-0-0x0000000000400000-0x00000000004EF000-memory.dmp

Filesize
956KB

Download
memory/2100-15-0x0000000000400000-0x00000000004EF000-memory.dmp

Filesize
956KB

Download
memory/2912-2-0x0000000000400000-0x00000000004EF000-memory.dmp

Filesize
956KB

Download
memory/2912-4-0x0000000002110000-0x00000000021A4000-memory.dmp

Filesize
592KB

Download
memory/2912-9-0x0000000002110000-0x00000000021A4000-memory.dmp

Filesize
592KB

Download
memory/2912-10-0x0000000000400000-0x00000000004EF000-memory.dmp

Filesize
956KB

Download
memory/2912-12-0x0000000002110000-0x00000000021A4000-memory.dmp

Filesize
592KB

Download
memory/2912-11-0x0000000000400000-0x00000000004EF000-memory.dmp

Filesize
956KB

Download
memory/2912-13-0x000000000040B000-0x000000000040E000-memory.dmp

Filesize
12KB

Download
memory/2912-14-0x0000000002110000-0x00000000021A4000-memory.dmp

Filesize
592KB

Download
memory/2912-17-0x0000000000400000-0x00000000004EF000-memory.dmp

Filesize
956KB

Download

Analysis

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