de837c2f5df7313d8d64e0d83bdb87081de96b24a22c38894d70d359db019427

General

Target

de837c2f5df7313d8d64e0d83bdb87081de96b24a22c38894d70d359db019427.xls
Size

70KB
MD5

aea87205bedf34dc9f903db0a710e6d0
SHA1

5d3e80e6bc99a741c4b90e58523953c66d4b79f4
SHA256

de837c2f5df7313d8d64e0d83bdb87081de96b24a22c38894d70d359db019427
SHA512

9bf897743431898137501f379375fb7609f4cdb600cbaf50e5cbfa9375a3ca71dbe329ffbf2b75e234dc86080b21c92fcf0c20a99322b4578993a7135efde88e
SSDEEP

1536:OhKpb8rGYrMPe3q7Q0XV5xtezE8vG8UM+KJ+hDcnTLiQrRTZws8Eo:uKpb8rGYrMPe3q7Q0XV5xtezE8vG8UM2

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.

description	pid	pid_target	Process	procid_target
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	3212	2428	regsvr32.exe	81
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	1732	2428	regsvr32.exe	81
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	1476	2428	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

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 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

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
2428	EXCEL.EXE

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
2428	EXCEL.EXE
2428	EXCEL.EXE

Suspicious use of SetWindowsHookEx 12 IoCs

pid	Process
2428	EXCEL.EXE
2428	EXCEL.EXE
2428	EXCEL.EXE
2428	EXCEL.EXE
2428	EXCEL.EXE
2428	EXCEL.EXE
2428	EXCEL.EXE
2428	EXCEL.EXE
2428	EXCEL.EXE
2428	EXCEL.EXE
2428	EXCEL.EXE
2428	EXCEL.EXE

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2428 wrote to memory of 3212	2428	EXCEL.EXE	86
PID 2428 wrote to memory of 3212	2428	EXCEL.EXE	86
PID 2428 wrote to memory of 1732	2428	EXCEL.EXE	87
PID 2428 wrote to memory of 1732	2428	EXCEL.EXE	87
PID 2428 wrote to memory of 1476	2428	EXCEL.EXE	88
PID 2428 wrote to memory of 1476	2428	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\de837c2f5df7313d8d64e0d83bdb87081de96b24a22c38894d70d359db019427.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:2428
- C:\Windows\System32\regsvr32.exe
  C:\Windows\System32\regsvr32.exe /S ..\cusoa1.ocx
  2⤵
  - Process spawned unexpected child process
  PID:3212
- C:\Windows\System32\regsvr32.exe
  C:\Windows\System32\regsvr32.exe /S ..\cusoa2.ocx
  2⤵
  - Process spawned unexpected child process
  PID:1732
- C:\Windows\System32\regsvr32.exe
  C:\Windows\System32\regsvr32.exe /S ..\cusoa3.ocx
  2⤵
  - Process spawned unexpected child process
  PID:1476

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
4KB

MD5
9a11aa7ab3d74bfd9434f261644595ff

SHA1
b100b5f24211dcada3f971a6ae18023f6d0a3c3f

SHA256
90956b4ae636c658166937d1ea29a3d6f252774f36269e26867608b867e4b423

SHA512
046478c88de4df5655ce0cebc88cd08ce6272474d2d63ef6e53580ce39db90487f8f28e8d3b5240b02b6f55e175a02d4ca743a9a90845234109806aa29e22025

Download Submit
memory/2428-14-0x00007FFC1B230000-0x00007FFC1B425000-memory.dmp

Filesize
2.0MB

Download
memory/2428-11-0x00007FFC1B230000-0x00007FFC1B425000-memory.dmp

Filesize
2.0MB

Download
memory/2428-2-0x00007FFBDB2B0000-0x00007FFBDB2C0000-memory.dmp

Filesize
64KB

Download
memory/2428-6-0x00007FFC1B230000-0x00007FFC1B425000-memory.dmp

Filesize
2.0MB

Download
memory/2428-5-0x00007FFC1B230000-0x00007FFC1B425000-memory.dmp

Filesize
2.0MB

Download
memory/2428-4-0x00007FFBDB2B0000-0x00007FFBDB2C0000-memory.dmp

Filesize
64KB

Download
memory/2428-7-0x00007FFBDB2B0000-0x00007FFBDB2C0000-memory.dmp

Filesize
64KB

Download
memory/2428-10-0x00007FFC1B230000-0x00007FFC1B425000-memory.dmp

Filesize
2.0MB

Download
memory/2428-12-0x00007FFC1B230000-0x00007FFC1B425000-memory.dmp

Filesize
2.0MB

Download
memory/2428-15-0x00007FFBD8F80000-0x00007FFBD8F90000-memory.dmp

Filesize
64KB

Download
memory/2428-3-0x00007FFBDB2B0000-0x00007FFBDB2C0000-memory.dmp

Filesize
64KB

Download
memory/2428-13-0x00007FFBD8F80000-0x00007FFBD8F90000-memory.dmp

Filesize
64KB

Download
memory/2428-1-0x00007FFC1B2CD000-0x00007FFC1B2CE000-memory.dmp

Filesize
4KB

Download
memory/2428-17-0x00007FFC1B230000-0x00007FFC1B425000-memory.dmp

Filesize
2.0MB

Download
memory/2428-16-0x00007FFC1B230000-0x00007FFC1B425000-memory.dmp

Filesize
2.0MB

Download
memory/2428-9-0x00007FFC1B230000-0x00007FFC1B425000-memory.dmp

Filesize
2.0MB

Download
memory/2428-8-0x00007FFC1B230000-0x00007FFC1B425000-memory.dmp

Filesize
2.0MB

Download
memory/2428-27-0x00007FFC1B230000-0x00007FFC1B425000-memory.dmp

Filesize
2.0MB

Download
memory/2428-28-0x00007FFC1B2CD000-0x00007FFC1B2CE000-memory.dmp

Filesize
4KB

Download
memory/2428-29-0x00007FFC1B230000-0x00007FFC1B425000-memory.dmp

Filesize
2.0MB

Download
memory/2428-30-0x00007FFC1B230000-0x00007FFC1B425000-memory.dmp

Filesize
2.0MB

Download
memory/2428-0-0x00007FFBDB2B0000-0x00007FFBDB2C0000-memory.dmp

Filesize
64KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads