f3503b405c11f77d1629cc544e6d5b6cf779d078cebd809ac8d953570266a8c8

General

Target

f3503b405c11f77d1629cc544e6d5b6cf779d078cebd809ac8d953570266a8c8.xls
Size

159KB
MD5

bd18f00ec7680fb84b5cfb8ba24a80b5
SHA1

052c4381657148e687519d0aa3a75db60001f138
SHA256

f3503b405c11f77d1629cc544e6d5b6cf779d078cebd809ac8d953570266a8c8
SHA512

a2a9f17715aae26ea6637fc90dacbaf8336c5dc1781b8d632c467b33dd16a52e95911db2f95094920774ac4058892fdc2273920626010cbae826a2a0c8c79479
SSDEEP

3072:5ZTEEEd8rmjPOtyoVjDGL61EfDlaGGx+cL/IxApmoFSfcNeD4RT665ezcdAZABKj:I8rmjPOtyoVjDGL61EfDlavx+W/IxApx

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	4272	4808	cmd.exe	83
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	1648	4808	cmd.exe	83
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	1140	4808	cmd.exe	83

Suspicious Office macro 1 IoCs

Office document equipped with 4.0 macros.

macro xlm

resource	yara_rule
behavioral2/files/0x000c000000023b87-113.dat	office_xlm_macros

Deletes itself 1 IoCs

pid	Process
4808	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\SystemSKU	EXCEL.EXE
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\BIOS	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily	EXCEL.EXE

NTFS ADS 1 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Local\Temp\A1C75E00\:Zone.Identifier:$DATA	EXCEL.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
4808	EXCEL.EXE

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
4808	EXCEL.EXE
4808	EXCEL.EXE

Suspicious use of SetWindowsHookEx 14 IoCs

pid	Process
4808	EXCEL.EXE
4808	EXCEL.EXE
4808	EXCEL.EXE
4808	EXCEL.EXE
4808	EXCEL.EXE
4808	EXCEL.EXE
4808	EXCEL.EXE
4808	EXCEL.EXE
4808	EXCEL.EXE
4808	EXCEL.EXE
4808	EXCEL.EXE
4808	EXCEL.EXE
4808	EXCEL.EXE
4808	EXCEL.EXE

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 4808 wrote to memory of 1140	4808	EXCEL.EXE	89
PID 4808 wrote to memory of 1140	4808	EXCEL.EXE	89
PID 4808 wrote to memory of 1648	4808	EXCEL.EXE	90
PID 4808 wrote to memory of 1648	4808	EXCEL.EXE	90
PID 4808 wrote to memory of 4272	4808	EXCEL.EXE	91
PID 4808 wrote to memory of 4272	4808	EXCEL.EXE	91
PID 1140 wrote to memory of 2844	1140	cmd.exe	95
PID 1140 wrote to memory of 2844	1140	cmd.exe	95

Views/modifies file attributes 1 TTPs 1 IoCs

evasion

Hidden Files and Directories

T1564.001

pid	Process
2844	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\f3503b405c11f77d1629cc544e6d5b6cf779d078cebd809ac8d953570266a8c8.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:4808
- 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:1140
- - C:\Windows\system32\attrib.exe
    attrib -S -h "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
    3⤵
    - Views/modifies file attributes
    PID:2844
- 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:1648
- 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:4272

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\f3503b405c11f77d1629cc544e6d5b6cf779d078cebd809ac8d953570266a8c8.xls

Filesize
172KB

MD5
d1cd8bba3608a79b2135b42ca8967507

SHA1
50379ed39de527d59c25c0617361e217bf4dec07

SHA256
b9e62f3bc78da6aca1f0c316b0732572129b582a92e0f07f05cbba764ef304be

SHA512
19de615e8b818d1a7243f65078b1cb28d6a48bde5eb7c58b8f4af96495470a6d72613326bb947c3417f3d08deefbc82a0cac00de4797133469d18ff855128db2

Download Submit
memory/4808-17-0x00007FFCC8D20000-0x00007FFCC8D30000-memory.dmp

Filesize
64KB

Download
memory/4808-1-0x00007FFCCB3D0000-0x00007FFCCB3E0000-memory.dmp

Filesize
64KB

Download
memory/4808-2-0x00007FFCCB3D0000-0x00007FFCCB3E0000-memory.dmp

Filesize
64KB

Download
memory/4808-0-0x00007FFCCB3D0000-0x00007FFCCB3E0000-memory.dmp

Filesize
64KB

Download
memory/4808-9-0x00007FFD0B350000-0x00007FFD0B545000-memory.dmp

Filesize
2.0MB

Download
memory/4808-20-0x00007FFCC8D20000-0x00007FFCC8D30000-memory.dmp

Filesize
64KB

Download
memory/4808-13-0x00007FFD0B350000-0x00007FFD0B545000-memory.dmp

Filesize
2.0MB

Download
memory/4808-14-0x00007FFD0B350000-0x00007FFD0B545000-memory.dmp

Filesize
2.0MB

Download
memory/4808-12-0x00007FFD0B350000-0x00007FFD0B545000-memory.dmp

Filesize
2.0MB

Download
memory/4808-11-0x00007FFD0B350000-0x00007FFD0B545000-memory.dmp

Filesize
2.0MB

Download
memory/4808-10-0x00007FFD0B350000-0x00007FFD0B545000-memory.dmp

Filesize
2.0MB

Download
memory/4808-7-0x00007FFD0B350000-0x00007FFD0B545000-memory.dmp

Filesize
2.0MB

Download
memory/4808-6-0x00007FFD0B350000-0x00007FFD0B545000-memory.dmp

Filesize
2.0MB

Download
memory/4808-5-0x00007FFCCB3D0000-0x00007FFCCB3E0000-memory.dmp

Filesize
64KB

Download
memory/4808-16-0x00007FFD0B350000-0x00007FFD0B545000-memory.dmp

Filesize
2.0MB

Download
memory/4808-18-0x00007FFD0B350000-0x00007FFD0B545000-memory.dmp

Filesize
2.0MB

Download
memory/4808-121-0x00007FFD0B350000-0x00007FFD0B545000-memory.dmp

Filesize
2.0MB

Download
memory/4808-3-0x00007FFD0B3ED000-0x00007FFD0B3EE000-memory.dmp

Filesize
4KB

Download
memory/4808-8-0x00007FFD0B350000-0x00007FFD0B545000-memory.dmp

Filesize
2.0MB

Download
memory/4808-21-0x00007FFD0B350000-0x00007FFD0B545000-memory.dmp

Filesize
2.0MB

Download
memory/4808-15-0x00007FFD0B350000-0x00007FFD0B545000-memory.dmp

Filesize
2.0MB

Download
memory/4808-44-0x00007FFD0B350000-0x00007FFD0B545000-memory.dmp

Filesize
2.0MB

Download
memory/4808-60-0x00007FFD0B350000-0x00007FFD0B545000-memory.dmp

Filesize
2.0MB

Download
memory/4808-59-0x00007FFD0B350000-0x00007FFD0B545000-memory.dmp

Filesize
2.0MB

Download
memory/4808-58-0x00007FFD0B350000-0x00007FFD0B545000-memory.dmp

Filesize
2.0MB

Download
memory/4808-49-0x00007FFD0B350000-0x00007FFD0B545000-memory.dmp

Filesize
2.0MB

Download
memory/4808-63-0x00007FFD0B350000-0x00007FFD0B545000-memory.dmp

Filesize
2.0MB

Download
memory/4808-62-0x00007FFD0B350000-0x00007FFD0B545000-memory.dmp

Filesize
2.0MB

Download
memory/4808-61-0x00007FFD0B350000-0x00007FFD0B545000-memory.dmp

Filesize
2.0MB

Download
memory/4808-4-0x00007FFCCB3D0000-0x00007FFCCB3E0000-memory.dmp

Filesize
64KB

Download
memory/4808-115-0x00007FFD0B3ED000-0x00007FFD0B3EE000-memory.dmp

Filesize
4KB

Download
memory/4808-116-0x00007FFD0B350000-0x00007FFD0B545000-memory.dmp

Filesize
2.0MB

Download
memory/4808-117-0x00007FFD0B350000-0x00007FFD0B545000-memory.dmp

Filesize
2.0MB

Download
memory/4808-19-0x00007FFD0B350000-0x00007FFD0B545000-memory.dmp

Filesize
2.0MB

Download
memory/4808-122-0x00007FFD0B350000-0x00007FFD0B545000-memory.dmp

Filesize
2.0MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads