f76566c6f828aa486581ef277b67a418e2162be7521e70efeb5e2a5888619bf4

General

Target

f76566c6f828aa486581ef277b67a418e2162be7521e70efeb5e2a5888619bf4.xls
Size

70KB
MD5

101f43ee3c84076c9fe0997b27394049
SHA1

b7d7f4f77fb4da739fac88ed67b01e2260bf4eae
SHA256

f76566c6f828aa486581ef277b67a418e2162be7521e70efeb5e2a5888619bf4
SHA512

e11a50ad9573f61c446e6bfdcf826f4d286a8a7f14a81d59ba18d9edd16aad194963a5559aa9362668046ac359c58cf2af9f5dde508d395c04431d3f62cbb804
SSDEEP

1536:OhKpb8rGYrMPe3q7Q0XV5xtezE8vG8UM+KJ+hDcnTLiQrRTZws8EI:uKpb8rGYrMPe3q7Q0XV5xtezE8vG8UMG

Score

10^/10

Malware Config

Extracted

Language

xlm4.0

Source

URLs

xlm40.dropper

https://sacvasanth.com/public/lyP2lh1hlJr/

xlm40.dropper

https://webguruindia.com/theme/wTbEyLVvMNB3j/

xlm40.dropper

http://stockmorehouse.com/Casa_Grande/AS4VPkTsOqWDGGO/

Signatures

Process spawned unexpected child process 3 IoCs

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

Processes:

regsvr32.exeregsvr32.exeregsvr32.exe

description	pid	pid_target	Process	procid_target
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	3916	3400	regsvr32.exe	81
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	4108	3400	regsvr32.exe	81
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	3040	3400	regsvr32.exe	81

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

Processes:

EXCEL.EXE

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

Processes:

EXCEL.EXE

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

Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

EXCEL.EXE

pid	Process
3400	EXCEL.EXE

Suspicious use of FindShellTrayWindow 2 IoCs

Processes:

EXCEL.EXE

pid	Process
3400	EXCEL.EXE
3400	EXCEL.EXE

Suspicious use of SetWindowsHookEx 12 IoCs

Processes:

EXCEL.EXE

pid	Process
3400	EXCEL.EXE
3400	EXCEL.EXE
3400	EXCEL.EXE
3400	EXCEL.EXE
3400	EXCEL.EXE
3400	EXCEL.EXE
3400	EXCEL.EXE
3400	EXCEL.EXE
3400	EXCEL.EXE
3400	EXCEL.EXE
3400	EXCEL.EXE
3400	EXCEL.EXE

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

EXCEL.EXE

description	pid	Process	procid_target
PID 3400 wrote to memory of 3916	3400	EXCEL.EXE	85
PID 3400 wrote to memory of 3916	3400	EXCEL.EXE	85
PID 3400 wrote to memory of 4108	3400	EXCEL.EXE	86
PID 3400 wrote to memory of 4108	3400	EXCEL.EXE	86
PID 3400 wrote to memory of 3040	3400	EXCEL.EXE	88
PID 3400 wrote to memory of 3040	3400	EXCEL.EXE	88

C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE
"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\f76566c6f828aa486581ef277b67a418e2162be7521e70efeb5e2a5888619bf4.xls"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3400
- C:\Windows\System32\regsvr32.exe
  C:\Windows\System32\regsvr32.exe /S ..\cusoa1.ocx
  2⤵
  - Process spawned unexpected child process
  PID:3916
- C:\Windows\System32\regsvr32.exe
  C:\Windows\System32\regsvr32.exe /S ..\cusoa2.ocx
  2⤵
  - Process spawned unexpected child process
  PID:4108
- C:\Windows\System32\regsvr32.exe
  C:\Windows\System32\regsvr32.exe /S ..\cusoa3.ocx
  2⤵
  - Process spawned unexpected child process
  PID:3040

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

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\Roaming\Microsoft\Windows\Recent\CustomDestinations\b8ab77100df80ab2.customDestinations-ms

Filesize
2KB

MD5
f6fa1a9cc8ca68d693db2239f98ee2ea

SHA1
bdc8c08de68857142b23626bbffb16566a2173e9

SHA256
72874c8fd6b0903de39586eda2d065f2463a570006036371cfb3d4e8df808ebf

SHA512
797fc32444c0a8ede324fd83267cf3a432f9aa2c4267238e6243ecc9476d9d96301f7a33d2fcfbac73fbb4a2270b5ece31cc07140d3fe74d136cebffad9a72b7

Download Submit
memory/3400-9-0x00007FFE0D550000-0x00007FFE0D745000-memory.dmp

Filesize
2.0MB

Download
memory/3400-6-0x00007FFE0D550000-0x00007FFE0D745000-memory.dmp

Filesize
2.0MB

Download
memory/3400-5-0x00007FFE0D550000-0x00007FFE0D745000-memory.dmp

Filesize
2.0MB

Download
memory/3400-13-0x00007FFE0D550000-0x00007FFE0D745000-memory.dmp

Filesize
2.0MB

Download
memory/3400-12-0x00007FFDCB410000-0x00007FFDCB420000-memory.dmp

Filesize
64KB

Download
memory/3400-7-0x00007FFDCD5D0000-0x00007FFDCD5E0000-memory.dmp

Filesize
64KB

Download
memory/3400-8-0x00007FFE0D550000-0x00007FFE0D745000-memory.dmp

Filesize
2.0MB

Download
memory/3400-11-0x00007FFE0D550000-0x00007FFE0D745000-memory.dmp

Filesize
2.0MB

Download
memory/3400-10-0x00007FFE0D550000-0x00007FFE0D745000-memory.dmp

Filesize
2.0MB

Download
memory/3400-0-0x00007FFDCD5D0000-0x00007FFDCD5E0000-memory.dmp

Filesize
64KB

Download
memory/3400-2-0x00007FFDCD5D0000-0x00007FFDCD5E0000-memory.dmp

Filesize
64KB

Download
memory/3400-3-0x00007FFDCD5D0000-0x00007FFDCD5E0000-memory.dmp

Filesize
64KB

Download
memory/3400-4-0x00007FFDCD5D0000-0x00007FFDCD5E0000-memory.dmp

Filesize
64KB

Download
memory/3400-16-0x00007FFE0D550000-0x00007FFE0D745000-memory.dmp

Filesize
2.0MB

Download
memory/3400-15-0x00007FFE0D550000-0x00007FFE0D745000-memory.dmp

Filesize
2.0MB

Download
memory/3400-17-0x00007FFDCB410000-0x00007FFDCB420000-memory.dmp

Filesize
64KB

Download
memory/3400-14-0x00007FFE0D550000-0x00007FFE0D745000-memory.dmp

Filesize
2.0MB

Download
memory/3400-27-0x00007FFE0D550000-0x00007FFE0D745000-memory.dmp

Filesize
2.0MB

Download
memory/3400-28-0x00007FFE0D5ED000-0x00007FFE0D5EE000-memory.dmp

Filesize
4KB

Download
memory/3400-29-0x00007FFE0D550000-0x00007FFE0D745000-memory.dmp

Filesize
2.0MB

Download
memory/3400-1-0x00007FFE0D5ED000-0x00007FFE0D5EE000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads