3129f2e420e3735280b4afc9596350917cbeab190e120259d837a20041c664d0

General

Target

3129f2e420e3735280b4afc9596350917cbeab190e120259d837a20041c664d0.xls
Size

70KB
MD5

40d27a88b237bae0e851d43d5bb32c76
SHA1

bbcb96ea3b642de5336efbf8537dc22ded443526
SHA256

3129f2e420e3735280b4afc9596350917cbeab190e120259d837a20041c664d0
SHA512

1175fe91c5407a70e188bcff9a22720f7c713885fb76602965d5efdc5033dd8264c577a3568fd36730365eacf97b90e8b75d066056bb316aba3f85568f965076
SSDEEP

1536:OhKpb8rGYrMPe3q7Q0XV5xtezE8vG8UM+e+hDcnTLiQrRTZws8Eg0:uKpb8rGYrMPe3q7Q0XV5xtezE8vG8UMh

Score

10^/10

Malware Config

Extracted

Language

xlm4.0

Source

URLs

xlm40.dropper

https://strachanclark.com/images/3gc4qCpSFYbBMDEC/

xlm40.dropper

https://synapse-archive.com/images/bKaMr/

xlm40.dropper

https://sumuvesa.com/wp-includes/rgL/

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	2660	2364	regsvr32.exe	81
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	2724	2364	regsvr32.exe	81
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	4008	2364	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 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

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
2364	EXCEL.EXE

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
2364	EXCEL.EXE
2364	EXCEL.EXE

Suspicious use of SetWindowsHookEx 12 IoCs

pid	Process
2364	EXCEL.EXE
2364	EXCEL.EXE
2364	EXCEL.EXE
2364	EXCEL.EXE
2364	EXCEL.EXE
2364	EXCEL.EXE
2364	EXCEL.EXE
2364	EXCEL.EXE
2364	EXCEL.EXE
2364	EXCEL.EXE
2364	EXCEL.EXE
2364	EXCEL.EXE

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2364 wrote to memory of 2660	2364	EXCEL.EXE	86
PID 2364 wrote to memory of 2660	2364	EXCEL.EXE	86
PID 2364 wrote to memory of 2724	2364	EXCEL.EXE	87
PID 2364 wrote to memory of 2724	2364	EXCEL.EXE	87
PID 2364 wrote to memory of 4008	2364	EXCEL.EXE	90
PID 2364 wrote to memory of 4008	2364	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\3129f2e420e3735280b4afc9596350917cbeab190e120259d837a20041c664d0.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:2364
- C:\Windows\System32\regsvr32.exe
  C:\Windows\System32\regsvr32.exe /S ..\cusoa1.ocx
  2⤵
  - Process spawned unexpected child process
  PID:2660
- C:\Windows\System32\regsvr32.exe
  C:\Windows\System32\regsvr32.exe /S ..\cusoa2.ocx
  2⤵
  - Process spawned unexpected child process
  PID:2724
- C:\Windows\System32\regsvr32.exe
  C:\Windows\System32\regsvr32.exe /S ..\cusoa3.ocx
  2⤵
  - Process spawned unexpected child process
  PID:4008

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

memory/2364-0-0x00007FF81688D000-0x00007FF81688E000-memory.dmp

Filesize
4KB

Download
memory/2364-1-0x00007FF7D6870000-0x00007FF7D6880000-memory.dmp

Filesize
64KB

Download
memory/2364-3-0x00007FF7D6870000-0x00007FF7D6880000-memory.dmp

Filesize
64KB

Download
memory/2364-2-0x00007FF7D6870000-0x00007FF7D6880000-memory.dmp

Filesize
64KB

Download
memory/2364-5-0x00007FF8167F0000-0x00007FF8169E5000-memory.dmp

Filesize
2.0MB

Download
memory/2364-8-0x00007FF7D6870000-0x00007FF7D6880000-memory.dmp

Filesize
64KB

Download
memory/2364-7-0x00007FF8167F0000-0x00007FF8169E5000-memory.dmp

Filesize
2.0MB

Download
memory/2364-6-0x00007FF8167F0000-0x00007FF8169E5000-memory.dmp

Filesize
2.0MB

Download
memory/2364-4-0x00007FF7D6870000-0x00007FF7D6880000-memory.dmp

Filesize
64KB

Download
memory/2364-9-0x00007FF8167F0000-0x00007FF8169E5000-memory.dmp

Filesize
2.0MB

Download
memory/2364-11-0x00007FF8167F0000-0x00007FF8169E5000-memory.dmp

Filesize
2.0MB

Download
memory/2364-12-0x00007FF8167F0000-0x00007FF8169E5000-memory.dmp

Filesize
2.0MB

Download
memory/2364-10-0x00007FF8167F0000-0x00007FF8169E5000-memory.dmp

Filesize
2.0MB

Download
memory/2364-13-0x00007FF8167F0000-0x00007FF8169E5000-memory.dmp

Filesize
2.0MB

Download
memory/2364-14-0x00007FF7D41A0000-0x00007FF7D41B0000-memory.dmp

Filesize
64KB

Download
memory/2364-15-0x00007FF7D41A0000-0x00007FF7D41B0000-memory.dmp

Filesize
64KB

Download
memory/2364-43-0x00007FF8167F0000-0x00007FF8169E5000-memory.dmp

Filesize
2.0MB

Download
memory/2364-44-0x00007FF81688D000-0x00007FF81688E000-memory.dmp

Filesize
4KB

Download
memory/2364-45-0x00007FF8167F0000-0x00007FF8169E5000-memory.dmp

Filesize
2.0MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads