f5348744376b195215d0aee02b11bc26fc692ac5f3ec19aa2dcc4e6c6cef74b4

General

Target

de4ba36c5c6482667815730fc0eb84ee_JaffaCakes118.xls
Size

100KB
MD5

de4ba36c5c6482667815730fc0eb84ee
SHA1

2bb15139ed80431fb627f5cbd539c59c83a2fb9c
SHA256

f5348744376b195215d0aee02b11bc26fc692ac5f3ec19aa2dcc4e6c6cef74b4
SHA512

973bf0dc62c77acb1067fc1a1a1001ab628b7fb1dba2c9b0064e815e995232ec2a6bba0ca4a5bfd3ae93ab7ad0655b7c6238b5039c1a6ad4c9d727fb50b45d61
SSDEEP

1536:xttttcTBVp7pMPKTVWVbCFOSzQ7ITkR62liM88fcJtXwRkM2M/MdA6:OWVbi7zQ7ITk9FjkJtXwp5k+6

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	4160	1176	cmd.exe	81
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	3456	1176	cmd.exe	81
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	2996	1176	cmd.exe	81

Suspicious Office macro 1 IoCs

Office document equipped with 4.0 macros.

macro xlm

resource	yara_rule
behavioral2/files/0x0008000000023ca1-94.dat	office_xlm_macros

Deletes itself 1 IoCs

pid	Process
1176	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 value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU	EXCEL.EXE
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\BIOS	EXCEL.EXE

NTFS ADS 1 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Local\Temp\83D75E00\:Zone.Identifier:$DATA	EXCEL.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
1176	EXCEL.EXE

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
1176	EXCEL.EXE
1176	EXCEL.EXE

Suspicious use of SetWindowsHookEx 14 IoCs

pid	Process
1176	EXCEL.EXE
1176	EXCEL.EXE
1176	EXCEL.EXE
1176	EXCEL.EXE
1176	EXCEL.EXE
1176	EXCEL.EXE
1176	EXCEL.EXE
1176	EXCEL.EXE
1176	EXCEL.EXE
1176	EXCEL.EXE
1176	EXCEL.EXE
1176	EXCEL.EXE
1176	EXCEL.EXE
1176	EXCEL.EXE

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 1176 wrote to memory of 1000	1176	EXCEL.EXE	86
PID 1176 wrote to memory of 1000	1176	EXCEL.EXE	86
PID 1176 wrote to memory of 4160	1176	EXCEL.EXE	88
PID 1176 wrote to memory of 4160	1176	EXCEL.EXE	88
PID 1176 wrote to memory of 3456	1176	EXCEL.EXE	89
PID 1176 wrote to memory of 3456	1176	EXCEL.EXE	89
PID 1176 wrote to memory of 2996	1176	EXCEL.EXE	91
PID 1176 wrote to memory of 2996	1176	EXCEL.EXE	91
PID 4160 wrote to memory of 5024	4160	cmd.exe	94
PID 4160 wrote to memory of 5024	4160	cmd.exe	94

Views/modifies file attributes 1 TTPs 1 IoCs

evasion

Hidden Files and Directories

T1564.001

pid	Process
5024	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\de4ba36c5c6482667815730fc0eb84ee_JaffaCakes118.xls"
1⤵
- Deletes itself
- Checks processor information in registry
- Enumerates system info in registry
- NTFS ADS
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1176
- C:\Windows\splwow64.exe
  C:\Windows\splwow64.exe 12288
  2⤵
  PID:1000
- 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:4160
- - C:\Windows\system32\attrib.exe
    attrib -S -h "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
    3⤵
    - Views/modifies file attributes
    PID:5024
- 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:3456
- 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:2996

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k PrintWorkflow -s PrintWorkflowUserSvc
1⤵
PID:1932

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

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Downloads

C:\Users\Admin\AppData\Local\Temp\de4ba36c5c6482667815730fc0eb84ee_JaffaCakes118.xls

Filesize
129KB

MD5
7fbf6908b65f8659cce2cfa15faa19ed

SHA1
d3e487af6ed2ac381352c6283d8f442f7373dd7c

SHA256
500689ceb6a65e449df92f92b85be7c5a32936be4f295752a6be52d06568165b

SHA512
ca58a5a76fd89bc762dce2d1f35b3d8aa68b6769c6d0d0b7a72956098b1edb82e524650554245cd966bb751a0f2972f7efeb941bb397024d6d1774abd3f03322

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\b8ab77100df80ab2.customDestinations-ms

Filesize
1KB

MD5
3a8bf5ff03464f0af430d62d7fedc3dd

SHA1
bd9429618f59b9a1bb0587d05ec2158ddb62289e

SHA256
aff62aaa0871784ebb8c3e3fdf11e3b450f70e3ef1a9180e437a3807767fd8f2

SHA512
f649ff118028a400035ecd4367208c6b360b45f03f1be37d736cc55d231c18470a32a4d1545a5f76aa6bcc9e5e7dc629bda7c7fedc8f1d9482b5cac99d38dd87

Download Submit
memory/1176-1-0x00007FFFCA4CD000-0x00007FFFCA4CE000-memory.dmp

Filesize
4KB

Download
memory/1176-13-0x00007FFF87DF0000-0x00007FFF87E00000-memory.dmp

Filesize
64KB

Download
memory/1176-7-0x00007FFFCA430000-0x00007FFFCA625000-memory.dmp

Filesize
2.0MB

Download
memory/1176-8-0x00007FFFCA430000-0x00007FFFCA625000-memory.dmp

Filesize
2.0MB

Download
memory/1176-9-0x00007FFFCA430000-0x00007FFFCA625000-memory.dmp

Filesize
2.0MB

Download
memory/1176-10-0x00007FFFCA430000-0x00007FFFCA625000-memory.dmp

Filesize
2.0MB

Download
memory/1176-12-0x00007FFFCA430000-0x00007FFFCA625000-memory.dmp

Filesize
2.0MB

Download
memory/1176-11-0x00007FFFCA430000-0x00007FFFCA625000-memory.dmp

Filesize
2.0MB

Download
memory/1176-6-0x00007FFFCA430000-0x00007FFFCA625000-memory.dmp

Filesize
2.0MB

Download
memory/1176-15-0x00007FFFCA430000-0x00007FFFCA625000-memory.dmp

Filesize
2.0MB

Download
memory/1176-2-0x00007FFF8A4B0000-0x00007FFF8A4C0000-memory.dmp

Filesize
64KB

Download
memory/1176-0-0x00007FFF8A4B0000-0x00007FFF8A4C0000-memory.dmp

Filesize
64KB

Download
memory/1176-3-0x00007FFF8A4B0000-0x00007FFF8A4C0000-memory.dmp

Filesize
64KB

Download
memory/1176-14-0x00007FFFCA430000-0x00007FFFCA625000-memory.dmp

Filesize
2.0MB

Download
memory/1176-16-0x00007FFF87DF0000-0x00007FFF87E00000-memory.dmp

Filesize
64KB

Download
memory/1176-17-0x00007FFFCA430000-0x00007FFFCA625000-memory.dmp

Filesize
2.0MB

Download
memory/1176-18-0x00007FFFCA430000-0x00007FFFCA625000-memory.dmp

Filesize
2.0MB

Download
memory/1176-5-0x00007FFF8A4B0000-0x00007FFF8A4C0000-memory.dmp

Filesize
64KB

Download
memory/1176-96-0x00007FFFCA430000-0x00007FFFCA625000-memory.dmp

Filesize
2.0MB

Download
memory/1176-97-0x00007FFFCA4CD000-0x00007FFFCA4CE000-memory.dmp

Filesize
4KB

Download
memory/1176-98-0x00007FFFCA430000-0x00007FFFCA625000-memory.dmp

Filesize
2.0MB

Download
memory/1176-4-0x00007FFF8A4B0000-0x00007FFF8A4C0000-memory.dmp

Filesize
64KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads