f63d40d6138f8402595ac66d1d7ee0b75b9ad3bb9341cd0915244196085b04a6

General

Target

f63d40d6138f8402595ac66d1d7ee0b75b9ad3bb9341cd0915244196085b04a6.xls
Size

70KB
MD5

46229e8c71216f7d7dea253ab15c86b0
SHA1

0f6422303dc22782986359d8b65f44abc00ce28c
SHA256

f63d40d6138f8402595ac66d1d7ee0b75b9ad3bb9341cd0915244196085b04a6
SHA512

119f77bdc42368241cd683be7bbe41f7876faa4250cfce14ff808b5d37a895e1ecfd4748e756ff899d72e82d1e73bb24ebc59a5954d29b11245bba2103bb87ae
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	2448	1068	regsvr32.exe	83
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	4012	1068	regsvr32.exe	83
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	4948	1068	regsvr32.exe	83

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\~MHz	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	EXCEL.EXE
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0	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
1068	EXCEL.EXE

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
1068	EXCEL.EXE
1068	EXCEL.EXE

Suspicious use of SetWindowsHookEx 12 IoCs

pid	Process
1068	EXCEL.EXE
1068	EXCEL.EXE
1068	EXCEL.EXE
1068	EXCEL.EXE
1068	EXCEL.EXE
1068	EXCEL.EXE
1068	EXCEL.EXE
1068	EXCEL.EXE
1068	EXCEL.EXE
1068	EXCEL.EXE
1068	EXCEL.EXE
1068	EXCEL.EXE

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 1068 wrote to memory of 2448	1068	EXCEL.EXE	88
PID 1068 wrote to memory of 2448	1068	EXCEL.EXE	88
PID 1068 wrote to memory of 4012	1068	EXCEL.EXE	89
PID 1068 wrote to memory of 4012	1068	EXCEL.EXE	89
PID 1068 wrote to memory of 4948	1068	EXCEL.EXE	90
PID 1068 wrote to memory of 4948	1068	EXCEL.EXE	90

C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE
"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\f63d40d6138f8402595ac66d1d7ee0b75b9ad3bb9341cd0915244196085b04a6.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:1068
- C:\Windows\System32\regsvr32.exe
  C:\Windows\System32\regsvr32.exe /S ..\cusoa1.ocx
  2⤵
  - Process spawned unexpected child process
  PID:2448
- C:\Windows\System32\regsvr32.exe
  C:\Windows\System32\regsvr32.exe /S ..\cusoa2.ocx
  2⤵
  - Process spawned unexpected child process
  PID:4012
- C:\Windows\System32\regsvr32.exe
  C:\Windows\System32\regsvr32.exe /S ..\cusoa3.ocx
  2⤵
  - Process spawned unexpected child process
  PID:4948

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
1KB

MD5
3f88e5fea5e5553eb8b452c2f566c885

SHA1
a8987ced8e9a2c3ecf7b4f421b64fef757f52dcc

SHA256
6fdfc3b5ce588c7f3d0163c6d03f61e13e1ffb81f794d957b72870229b6234cb

SHA512
93e9ac96d998b34554fe04ea02ffbdd3306878900f08623cc2ad53c90ef0d27816450569db53c0f4588d3c0dc66b6cc2010ea0a8ec2493164ba9a8479057cfe8

Download Submit
memory/1068-5-0x00007FFA147F0000-0x00007FFA14800000-memory.dmp

Filesize
64KB

Download
memory/1068-12-0x00007FFA126E0000-0x00007FFA126F0000-memory.dmp

Filesize
64KB

Download
memory/1068-8-0x00007FFA54770000-0x00007FFA54965000-memory.dmp

Filesize
2.0MB

Download
memory/1068-7-0x00007FFA54770000-0x00007FFA54965000-memory.dmp

Filesize
2.0MB

Download
memory/1068-6-0x00007FFA54770000-0x00007FFA54965000-memory.dmp

Filesize
2.0MB

Download
memory/1068-4-0x00007FFA147F0000-0x00007FFA14800000-memory.dmp

Filesize
64KB

Download
memory/1068-0-0x00007FFA147F0000-0x00007FFA14800000-memory.dmp

Filesize
64KB

Download
memory/1068-1-0x00007FFA147F0000-0x00007FFA14800000-memory.dmp

Filesize
64KB

Download
memory/1068-10-0x00007FFA54770000-0x00007FFA54965000-memory.dmp

Filesize
2.0MB

Download
memory/1068-13-0x00007FFA54770000-0x00007FFA54965000-memory.dmp

Filesize
2.0MB

Download
memory/1068-9-0x00007FFA54770000-0x00007FFA54965000-memory.dmp

Filesize
2.0MB

Download
memory/1068-11-0x00007FFA54770000-0x00007FFA54965000-memory.dmp

Filesize
2.0MB

Download
memory/1068-2-0x00007FFA147F0000-0x00007FFA14800000-memory.dmp

Filesize
64KB

Download
memory/1068-14-0x00007FFA126E0000-0x00007FFA126F0000-memory.dmp

Filesize
64KB

Download
memory/1068-17-0x00007FFA54770000-0x00007FFA54965000-memory.dmp

Filesize
2.0MB

Download
memory/1068-16-0x00007FFA54770000-0x00007FFA54965000-memory.dmp

Filesize
2.0MB

Download
memory/1068-18-0x00007FFA54770000-0x00007FFA54965000-memory.dmp

Filesize
2.0MB

Download
memory/1068-20-0x00007FFA54770000-0x00007FFA54965000-memory.dmp

Filesize
2.0MB

Download
memory/1068-19-0x00007FFA54770000-0x00007FFA54965000-memory.dmp

Filesize
2.0MB

Download
memory/1068-15-0x00007FFA54770000-0x00007FFA54965000-memory.dmp

Filesize
2.0MB

Download
memory/1068-30-0x00007FFA54770000-0x00007FFA54965000-memory.dmp

Filesize
2.0MB

Download
memory/1068-3-0x00007FFA5480D000-0x00007FFA5480E000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads