c5547db4d0d78e2875757726cba34e96dcd6109eb5d3ba4f838d6b251dba1d17

General

Target

JaffaCakes118_770034c50bb98c5b1fca378a18fa5d4a.xls
Size

84KB
MD5

770034c50bb98c5b1fca378a18fa5d4a
SHA1

7f6cccf4e9864314a6380187cf014eee82e2eb5e
SHA256

c5547db4d0d78e2875757726cba34e96dcd6109eb5d3ba4f838d6b251dba1d17
SHA512

111d9f8345296811e453c299dfde298ad4ec1d96dc22909ce092aacb192fa42995fb8cf2b8430285d3f8df50b44284e902a46c29f2c5b86fa9a753c9260aeafd
SSDEEP

1536:ymmmWSV5WVbrzQ7Io8cpDukbA23vM88ScJtXwgpMu:jWVbrzQ7I5cDukZEjhJtXwLu

Score

10^/10

defense_evasion macro xlm

Malware Config

Signatures

Process spawned unexpected child process 3 IoCs

This typically indicates the parent process was compromised via an exploit or macro.

description	pid	pid_target	Process	procid_target
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	2224	1696	cmd.exe	83
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	4944	1696	cmd.exe	83
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	2364	1696	cmd.exe	83

Suspicious Office macro 1 IoCs

Office document equipped with 4.0 macros.

macro xlm

resource	yara_rule
behavioral2/files/0x00430000000238ad-102.dat	office_xlm_macros

Deletes itself 1 IoCs

pid	Process
1696	EXCEL.EXE

Indicator Removal: File Deletion 1 TTPs
Adversaries may delete files left behind by the actions of their intrusion activity.
defense_evasion

File Deletion
T1070.004

Checks processor information in registry 2 TTPs 3 IoCs

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

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	EXCEL.EXE

Enumerates system info in registry 2 TTPs 3 IoCs

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\BIOS	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU	EXCEL.EXE

NTFS ADS 1 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Local\Temp\62775E00\:Zone.Identifier:$DATA	EXCEL.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
1696	EXCEL.EXE

Suspicious use of SetWindowsHookEx 14 IoCs

pid	Process
1696	EXCEL.EXE
1696	EXCEL.EXE
1696	EXCEL.EXE
1696	EXCEL.EXE
1696	EXCEL.EXE
1696	EXCEL.EXE
1696	EXCEL.EXE
1696	EXCEL.EXE
1696	EXCEL.EXE
1696	EXCEL.EXE
1696	EXCEL.EXE
1696	EXCEL.EXE
1696	EXCEL.EXE
1696	EXCEL.EXE

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 1696 wrote to memory of 2364	1696	EXCEL.EXE	90
PID 1696 wrote to memory of 2364	1696	EXCEL.EXE	90
PID 1696 wrote to memory of 4944	1696	EXCEL.EXE	91
PID 1696 wrote to memory of 4944	1696	EXCEL.EXE	91
PID 1696 wrote to memory of 2224	1696	EXCEL.EXE	92
PID 1696 wrote to memory of 2224	1696	EXCEL.EXE	92
PID 2364 wrote to memory of 4048	2364	cmd.exe	96
PID 2364 wrote to memory of 4048	2364	cmd.exe	96

Views/modifies file attributes 1 TTPs 1 IoCs

defense_evasion

Hidden Files and Directories

T1564.001

pid	Process
4048	attrib.exe

C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE
"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_770034c50bb98c5b1fca378a18fa5d4a.xls"
1⤵
- Deletes itself
- Checks processor information in registry
- Enumerates system info in registry
- NTFS ADS
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1696
- C:\Windows\system32\cmd.exe
  C:\Windows\system32\cmd.exe /c attrib -S -h "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
  2⤵
  - Process spawned unexpected child process
  - Suspicious use of WriteProcessMemory
  PID:2364
- - C:\Windows\system32\attrib.exe
    attrib -S -h "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
    3⤵
    - Views/modifies file attributes
    PID:4048
- C:\Windows\system32\cmd.exe
  C:\Windows\system32\cmd.exe /c Del /F /Q "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
  2⤵
  - Process spawned unexpected child process
  PID:4944
- C:\Windows\system32\cmd.exe
  C:\Windows\system32\cmd.exe /c RD /S /Q "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
  2⤵
  - Process spawned unexpected child process
  PID:2224

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Hide Artifacts

1

T1564

Hidden Files and Directories

1

T1564.001

Indicator Removal

1

T1070

File Deletion

1

T1070.004

Credential Access

Discovery

Query Registry

2

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_770034c50bb98c5b1fca378a18fa5d4a.xls

Filesize
119KB

MD5
aae669248fb03b37811488af23317ecd

SHA1
f95b7a5152a1b0d2b30be085b02f6e69ca004c4f

SHA256
048588c4eeaab87e070a6cef2337ee157120cbab6246aa868aa3ff0343752c19

SHA512
85c9493fd09526755ea42616562b161b62d68ac2e5f76baf2162f256758f50626c4edb605ae643059632fcdf16419f62b8ff5bc698572626f62968faa6e3b2bb

Download Submit
memory/1696-5-0x00007FF8169F0000-0x00007FF816A00000-memory.dmp

Filesize
64KB

Download
memory/1696-3-0x00007FF8169F0000-0x00007FF816A00000-memory.dmp

Filesize
64KB

Download
memory/1696-10-0x00007FF856970000-0x00007FF856B65000-memory.dmp

Filesize
2.0MB

Download
memory/1696-13-0x00007FF856970000-0x00007FF856B65000-memory.dmp

Filesize
2.0MB

Download
memory/1696-12-0x00007FF856970000-0x00007FF856B65000-memory.dmp

Filesize
2.0MB

Download
memory/1696-15-0x00007FF856970000-0x00007FF856B65000-memory.dmp

Filesize
2.0MB

Download
memory/1696-14-0x00007FF814620000-0x00007FF814630000-memory.dmp

Filesize
64KB

Download
memory/1696-16-0x00007FF856970000-0x00007FF856B65000-memory.dmp

Filesize
2.0MB

Download
memory/1696-9-0x00007FF856970000-0x00007FF856B65000-memory.dmp

Filesize
2.0MB

Download
memory/1696-18-0x00007FF856970000-0x00007FF856B65000-memory.dmp

Filesize
2.0MB

Download
memory/1696-19-0x00007FF856970000-0x00007FF856B65000-memory.dmp

Filesize
2.0MB

Download
memory/1696-17-0x00007FF856970000-0x00007FF856B65000-memory.dmp

Filesize
2.0MB

Download
memory/1696-22-0x00007FF856970000-0x00007FF856B65000-memory.dmp

Filesize
2.0MB

Download
memory/1696-21-0x00007FF814620000-0x00007FF814630000-memory.dmp

Filesize
64KB

Download
memory/1696-20-0x00007FF856970000-0x00007FF856B65000-memory.dmp

Filesize
2.0MB

Download
memory/1696-8-0x00007FF856970000-0x00007FF856B65000-memory.dmp

Filesize
2.0MB

Download
memory/1696-11-0x00007FF856970000-0x00007FF856B65000-memory.dmp

Filesize
2.0MB

Download
memory/1696-7-0x00007FF856970000-0x00007FF856B65000-memory.dmp

Filesize
2.0MB

Download
memory/1696-4-0x00007FF8169F0000-0x00007FF816A00000-memory.dmp

Filesize
64KB

Download
memory/1696-2-0x00007FF8169F0000-0x00007FF816A00000-memory.dmp

Filesize
64KB

Download
memory/1696-1-0x00007FF8169F0000-0x00007FF816A00000-memory.dmp

Filesize
64KB

Download
memory/1696-0-0x00007FF856A0D000-0x00007FF856A0E000-memory.dmp

Filesize
4KB

Download
memory/1696-55-0x00007FF856970000-0x00007FF856B65000-memory.dmp

Filesize
2.0MB

Download
memory/1696-54-0x00007FF856970000-0x00007FF856B65000-memory.dmp

Filesize
2.0MB

Download
memory/1696-53-0x00007FF856970000-0x00007FF856B65000-memory.dmp

Filesize
2.0MB

Download
memory/1696-52-0x00007FF856970000-0x00007FF856B65000-memory.dmp

Filesize
2.0MB

Download
memory/1696-51-0x00007FF856970000-0x00007FF856B65000-memory.dmp

Filesize
2.0MB

Download
memory/1696-63-0x00007FF856970000-0x00007FF856B65000-memory.dmp

Filesize
2.0MB

Download
memory/1696-6-0x00007FF856970000-0x00007FF856B65000-memory.dmp

Filesize
2.0MB

Download
memory/1696-104-0x00007FF856970000-0x00007FF856B65000-memory.dmp

Filesize
2.0MB

Download
memory/1696-103-0x00007FF856A0D000-0x00007FF856A0E000-memory.dmp

Filesize
4KB

Download
memory/1696-105-0x00007FF856970000-0x00007FF856B65000-memory.dmp

Filesize
2.0MB

Download
memory/1696-106-0x00007FF856970000-0x00007FF856B65000-memory.dmp

Filesize
2.0MB

Download
memory/1696-107-0x00007FF856970000-0x00007FF856B65000-memory.dmp

Filesize
2.0MB

Download
memory/1696-108-0x00007FF856970000-0x00007FF856B65000-memory.dmp

Filesize
2.0MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads