b6a6214ad7eb10ee3cfa57592579528d5d2cb376876c4513b08a091ac60fb9b2

General

Target

JaffaCakes118_6d46695976309ffe6eb6dc18928d9e0d.xls
Size

360KB
MD5

6d46695976309ffe6eb6dc18928d9e0d
SHA1

fc26adf393c5108e8353ef55042a28482be2bf00
SHA256

b6a6214ad7eb10ee3cfa57592579528d5d2cb376876c4513b08a091ac60fb9b2
SHA512

655e7716cfaff981d94e78d1cc698e2c85859998a87ac364286ee5a87155300119d4af83d9b75dd6b8a328ccb7afba8e8bcafbd6adf1398854554aaee3152fe0
SSDEEP

6144:r+l6Nc7yRzs1H75wkZUpFCaYWREOdO+jIcrOVnViuMMopoA/gnez5DP+J:mPx/SH

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	3936	744	cmd.exe	87
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	2856	744	cmd.exe	87
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	3340	744	cmd.exe	87

Suspicious Office macro 1 IoCs

Office document equipped with 4.0 macros.

macro xlm

resource	yara_rule
behavioral2/files/0x000500000001e5ba-96.dat	office_xlm_macros

Deletes itself 1 IoCs

pid	Process
744	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\0EF75E00\:Zone.Identifier:$DATA	EXCEL.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
744	EXCEL.EXE

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
744	EXCEL.EXE
744	EXCEL.EXE

Suspicious use of SetWindowsHookEx 14 IoCs

pid	Process
744	EXCEL.EXE
744	EXCEL.EXE
744	EXCEL.EXE
744	EXCEL.EXE
744	EXCEL.EXE
744	EXCEL.EXE
744	EXCEL.EXE
744	EXCEL.EXE
744	EXCEL.EXE
744	EXCEL.EXE
744	EXCEL.EXE
744	EXCEL.EXE
744	EXCEL.EXE
744	EXCEL.EXE

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 744 wrote to memory of 492	744	EXCEL.EXE	91
PID 744 wrote to memory of 492	744	EXCEL.EXE	91
PID 744 wrote to memory of 3340	744	EXCEL.EXE	95
PID 744 wrote to memory of 3340	744	EXCEL.EXE	95
PID 744 wrote to memory of 2856	744	EXCEL.EXE	96
PID 744 wrote to memory of 2856	744	EXCEL.EXE	96
PID 744 wrote to memory of 3936	744	EXCEL.EXE	97
PID 744 wrote to memory of 3936	744	EXCEL.EXE	97
PID 3340 wrote to memory of 4952	3340	cmd.exe	102
PID 3340 wrote to memory of 4952	3340	cmd.exe	102

Views/modifies file attributes 1 TTPs 1 IoCs

defense_evasion

Hidden Files and Directories

T1564.001

pid	Process
4952	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_6d46695976309ffe6eb6dc18928d9e0d.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:744
- C:\Windows\splwow64.exe
  C:\Windows\splwow64.exe 12288
  2⤵
  PID:492
- 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:3340
- - C:\Windows\system32\attrib.exe
    attrib -S -h "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
    3⤵
    - Views/modifies file attributes
    PID:4952
- 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:2856
- 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:3936

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k PrintWorkflow -s PrintWorkflowUserSvc
1⤵
PID:4012

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\JaffaCakes118_6d46695976309ffe6eb6dc18928d9e0d.xls

Filesize
378KB

MD5
0ce0192c0fe42e97922998838bee6bbd

SHA1
8c4a9c47d745a3b21ff5f9bb4a901852b02e3b1d

SHA256
bc96c9d129f4ef7eda830dd07f09c7b7ca54ae2c2129718722112c98d0970c98

SHA512
f79fc61a72bdc53ae37920ed3d18e1440517b1ae7654a581389145e50c8fb379e8e8075fa5758a9a03c6a0efb1f16fe249ba13d35eefcb2a70aa2b41f0effcc0

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

Filesize
1KB

MD5
3e0ef74be9e7a3e59a1463d545d1a242

SHA1
0cef0995649c67968b7bc2172af49577dbd4b095

SHA256
427a101bef8f5095ba8569f61d058d4c35e5b1f727a7c28476fb4d1f80277553

SHA512
a6d3b00afb388be71c40eacfc71e4f6e2998d7a286bd7f7b1707cae9a9569ba34f0474deaafdc926b34ba68b35a4d2453db5f0bec629506820a0cbdc6f826248

Download Submit
memory/744-15-0x00007FF9ED230000-0x00007FF9ED425000-memory.dmp

Filesize
2.0MB

Download
memory/744-9-0x00007FF9ED230000-0x00007FF9ED425000-memory.dmp

Filesize
2.0MB

Download
memory/744-2-0x00007FF9AD2B0000-0x00007FF9AD2C0000-memory.dmp

Filesize
64KB

Download
memory/744-6-0x00007FF9AD2B0000-0x00007FF9AD2C0000-memory.dmp

Filesize
64KB

Download
memory/744-1-0x00007FF9AD2B0000-0x00007FF9AD2C0000-memory.dmp

Filesize
64KB

Download
memory/744-11-0x00007FF9ED230000-0x00007FF9ED425000-memory.dmp

Filesize
2.0MB

Download
memory/744-10-0x00007FF9ED230000-0x00007FF9ED425000-memory.dmp

Filesize
2.0MB

Download
memory/744-13-0x00007FF9ED230000-0x00007FF9ED425000-memory.dmp

Filesize
2.0MB

Download
memory/744-14-0x00007FF9AB0A0000-0x00007FF9AB0B0000-memory.dmp

Filesize
64KB

Download
memory/744-16-0x00007FF9ED230000-0x00007FF9ED425000-memory.dmp

Filesize
2.0MB

Download
memory/744-5-0x00007FF9ED230000-0x00007FF9ED425000-memory.dmp

Filesize
2.0MB

Download
memory/744-0-0x00007FF9AD2B0000-0x00007FF9AD2C0000-memory.dmp

Filesize
64KB

Download
memory/744-12-0x00007FF9ED230000-0x00007FF9ED425000-memory.dmp

Filesize
2.0MB

Download
memory/744-20-0x00007FF9ED230000-0x00007FF9ED425000-memory.dmp

Filesize
2.0MB

Download
memory/744-19-0x00007FF9ED230000-0x00007FF9ED425000-memory.dmp

Filesize
2.0MB

Download
memory/744-18-0x00007FF9ED230000-0x00007FF9ED425000-memory.dmp

Filesize
2.0MB

Download
memory/744-17-0x00007FF9AB0A0000-0x00007FF9AB0B0000-memory.dmp

Filesize
64KB

Download
memory/744-8-0x00007FF9ED230000-0x00007FF9ED425000-memory.dmp

Filesize
2.0MB

Download
memory/744-7-0x00007FF9ED230000-0x00007FF9ED425000-memory.dmp

Filesize
2.0MB

Download
memory/744-3-0x00007FF9ED2CD000-0x00007FF9ED2CE000-memory.dmp

Filesize
4KB

Download
memory/744-98-0x00007FF9ED230000-0x00007FF9ED425000-memory.dmp

Filesize
2.0MB

Download
memory/744-4-0x00007FF9AD2B0000-0x00007FF9AD2C0000-memory.dmp

Filesize
64KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads