b2a6711e9aca06bcc4b481cfdaaf33d3e7e594824b0a015f32a33daaa88baebb

General

Target

JaffaCakes118_88590ba8837bbe4b64040d164f857195.xls
Size

105KB
MD5

88590ba8837bbe4b64040d164f857195
SHA1

aab135a09f1875ce2614aa76d2be7dc407406fbb
SHA256

b2a6711e9aca06bcc4b481cfdaaf33d3e7e594824b0a015f32a33daaa88baebb
SHA512

d356c04606a5b51e142fdb4a0cc63b5f8fda22c843300e04914ca82d7948c9c887751de7f2f50504a52701a065ce24b1b377ebf76322d82b8f50b3918ca05638
SSDEEP

1536:rPPP7au/+XUB8geJ43WVbr5lnPQ7ITkR62lduOeXcJtXwREM2M/MKvdCF:/8wWVbrTPQ7ITk9K/MJtXwJ5k0dw

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	3988	5840	cmd.exe	86
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	5256	5840	cmd.exe	86
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	1872	5840	cmd.exe	86

Suspicious Office macro 1 IoCs

Office document equipped with 4.0 macros.

macro xlm

resource	yara_rule
behavioral2/files/0x000c000000023fa1-104.dat	office_xlm_macros

Deletes itself 1 IoCs

pid	Process
5840	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 value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	EXCEL.EXE
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	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\6F575E00\:Zone.Identifier:$DATA	EXCEL.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
5840	EXCEL.EXE

Suspicious use of SetWindowsHookEx 14 IoCs

pid	Process
5840	EXCEL.EXE
5840	EXCEL.EXE
5840	EXCEL.EXE
5840	EXCEL.EXE
5840	EXCEL.EXE
5840	EXCEL.EXE
5840	EXCEL.EXE
5840	EXCEL.EXE
5840	EXCEL.EXE
5840	EXCEL.EXE
5840	EXCEL.EXE
5840	EXCEL.EXE
5840	EXCEL.EXE
5840	EXCEL.EXE

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 5840 wrote to memory of 1872	5840	EXCEL.EXE	93
PID 5840 wrote to memory of 1872	5840	EXCEL.EXE	93
PID 5840 wrote to memory of 5256	5840	EXCEL.EXE	94
PID 5840 wrote to memory of 5256	5840	EXCEL.EXE	94
PID 5840 wrote to memory of 3988	5840	EXCEL.EXE	95
PID 5840 wrote to memory of 3988	5840	EXCEL.EXE	95
PID 1872 wrote to memory of 2732	1872	cmd.exe	99
PID 1872 wrote to memory of 2732	1872	cmd.exe	99

Views/modifies file attributes 1 TTPs 1 IoCs

defense_evasion

Hidden Files and Directories

T1564.001

pid	Process
2732	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_88590ba8837bbe4b64040d164f857195.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:5840
- 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:1872
- - C:\Windows\system32\attrib.exe
    attrib -S -h "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
    3⤵
    - Views/modifies file attributes
    PID:2732
- 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:5256
- 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:3988

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_88590ba8837bbe4b64040d164f857195.xls

Filesize
128KB

MD5
0307588d02c76b9e420e3c3e9515a199

SHA1
a1e4a99a467148d8806638117eb54179c1bd78a7

SHA256
ab48a65ba41a70afa28512fb2363222e968b466ca3a0c4a8582b5ed6fcd0c6eb

SHA512
37de2b9b112c7361e5fa0f9d41ff851bf18b49691022c2cf738f484c828f4f7e66e4755f6689eb6bdb96ee13c0ae31581d7f74bb0be702cbfe4a7543878a721e

Download Submit
memory/5840-13-0x00007FFA4CFB0000-0x00007FFA4D1A5000-memory.dmp

Filesize
2.0MB

Download
memory/5840-1-0x00007FFA4D04D000-0x00007FFA4D04E000-memory.dmp

Filesize
4KB

Download
memory/5840-2-0x00007FFA0D030000-0x00007FFA0D040000-memory.dmp

Filesize
64KB

Download
memory/5840-4-0x00007FFA0D030000-0x00007FFA0D040000-memory.dmp

Filesize
64KB

Download
memory/5840-5-0x00007FFA4CFB0000-0x00007FFA4D1A5000-memory.dmp

Filesize
2.0MB

Download
memory/5840-6-0x00007FFA4CFB0000-0x00007FFA4D1A5000-memory.dmp

Filesize
2.0MB

Download
memory/5840-7-0x00007FFA0D030000-0x00007FFA0D040000-memory.dmp

Filesize
64KB

Download
memory/5840-10-0x00007FFA4CFB0000-0x00007FFA4D1A5000-memory.dmp

Filesize
2.0MB

Download
memory/5840-11-0x00007FFA4CFB0000-0x00007FFA4D1A5000-memory.dmp

Filesize
2.0MB

Download
memory/5840-9-0x00007FFA4CFB0000-0x00007FFA4D1A5000-memory.dmp

Filesize
2.0MB

Download
memory/5840-12-0x00007FFA0A9B0000-0x00007FFA0A9C0000-memory.dmp

Filesize
64KB

Download
memory/5840-8-0x00007FFA4CFB0000-0x00007FFA4D1A5000-memory.dmp

Filesize
2.0MB

Download
memory/5840-15-0x00007FFA4CFB0000-0x00007FFA4D1A5000-memory.dmp

Filesize
2.0MB

Download
memory/5840-16-0x00007FFA4CFB0000-0x00007FFA4D1A5000-memory.dmp

Filesize
2.0MB

Download
memory/5840-18-0x00007FFA4CFB0000-0x00007FFA4D1A5000-memory.dmp

Filesize
2.0MB

Download
memory/5840-17-0x00007FFA4CFB0000-0x00007FFA4D1A5000-memory.dmp

Filesize
2.0MB

Download
memory/5840-3-0x00007FFA0D030000-0x00007FFA0D040000-memory.dmp

Filesize
64KB

Download
memory/5840-14-0x00007FFA0A9B0000-0x00007FFA0A9C0000-memory.dmp

Filesize
64KB

Download
memory/5840-48-0x00007FFA4CFB0000-0x00007FFA4D1A5000-memory.dmp

Filesize
2.0MB

Download
memory/5840-51-0x00007FFA4CFB0000-0x00007FFA4D1A5000-memory.dmp

Filesize
2.0MB

Download
memory/5840-54-0x00007FFA4CFB0000-0x00007FFA4D1A5000-memory.dmp

Filesize
2.0MB

Download
memory/5840-56-0x00007FFA4CFB0000-0x00007FFA4D1A5000-memory.dmp

Filesize
2.0MB

Download
memory/5840-67-0x00007FFA4CFB0000-0x00007FFA4D1A5000-memory.dmp

Filesize
2.0MB

Download
memory/5840-69-0x00007FFA4CFB0000-0x00007FFA4D1A5000-memory.dmp

Filesize
2.0MB

Download
memory/5840-68-0x00007FFA4CFB0000-0x00007FFA4D1A5000-memory.dmp

Filesize
2.0MB

Download
memory/5840-70-0x00007FFA4CFB0000-0x00007FFA4D1A5000-memory.dmp

Filesize
2.0MB

Download
memory/5840-53-0x00007FFA4CFB0000-0x00007FFA4D1A5000-memory.dmp

Filesize
2.0MB

Download
memory/5840-52-0x00007FFA4CFB0000-0x00007FFA4D1A5000-memory.dmp

Filesize
2.0MB

Download
memory/5840-0-0x00007FFA0D030000-0x00007FFA0D040000-memory.dmp

Filesize
64KB

Download
memory/5840-106-0x00007FFA4CFB0000-0x00007FFA4D1A5000-memory.dmp

Filesize
2.0MB

Download
memory/5840-107-0x00007FFA4D04D000-0x00007FFA4D04E000-memory.dmp

Filesize
4KB

Download
memory/5840-108-0x00007FFA4CFB0000-0x00007FFA4D1A5000-memory.dmp

Filesize
2.0MB

Download
memory/5840-112-0x00007FFA4CFB0000-0x00007FFA4D1A5000-memory.dmp

Filesize
2.0MB

Download
memory/5840-113-0x00007FFA4CFB0000-0x00007FFA4D1A5000-memory.dmp

Filesize
2.0MB

Download
memory/5840-114-0x00007FFA4CFB0000-0x00007FFA4D1A5000-memory.dmp

Filesize
2.0MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads