d41e55a2dd50a141aeb7385488da938092f5faf1f7b8b98466d6e4515a74ffb9

General

Target

d41e55a2dd50a141aeb7385488da938092f5faf1f7b8b98466d6e4515a74ffb9.xls
Size

95KB
MD5

2488b4116658e4132a986478c533d4c8
SHA1

ebceb9fb9491d09591f2248f650986c416982efd
SHA256

d41e55a2dd50a141aeb7385488da938092f5faf1f7b8b98466d6e4515a74ffb9
SHA512

8716b7beac3715258adcdaf0f93a57e7bd60e01ffe61bd71da33a762c79387d95ad73f0df00bcb47f8047ab011b23c9d9a8824c6ac161e536bb1e85fdb037565

Score

10^/10

Malware Config

Extracted

Language

xlm4.0

Source

URLs

xlm40.dropper

http://www.sunflowerlaboratory.in/fonts/79Tq62ly/

xlm40.dropper

http://dirigent.co.uk/vardagsekonomi/iC36jJ4J1cf/

xlm40.dropper

http://agtrade.hu/images/kiQYmOs2tSKq/

xlm40.dropper

https://www.zachboyle.com/wp-admin/EA470ZrTGNkuA/

Signatures

Process spawned unexpected child process 4 IoCs

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

Processes:

regsvr32.exeregsvr32.exeregsvr32.exeregsvr32.exe

description	pid	pid_target	process	target process
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	3036	2568	regsvr32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	3400	2568	regsvr32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	4884	2568	regsvr32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	4900	2568	regsvr32.exe	EXCEL.EXE

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 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

Processes:

EXCEL.EXE

pid process

2568 EXCEL.EXE

Suspicious use of SetWindowsHookEx 12 IoCs

Processes:

EXCEL.EXE

pid	process
2568	EXCEL.EXE
2568	EXCEL.EXE
2568	EXCEL.EXE
2568	EXCEL.EXE
2568	EXCEL.EXE
2568	EXCEL.EXE
2568	EXCEL.EXE
2568	EXCEL.EXE
2568	EXCEL.EXE
2568	EXCEL.EXE
2568	EXCEL.EXE
2568	EXCEL.EXE

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

EXCEL.EXE

description	pid	process	target process
PID 2568 wrote to memory of 3036	2568	EXCEL.EXE	regsvr32.exe
PID 2568 wrote to memory of 3036	2568	EXCEL.EXE	regsvr32.exe
PID 2568 wrote to memory of 3400	2568	EXCEL.EXE	regsvr32.exe
PID 2568 wrote to memory of 3400	2568	EXCEL.EXE	regsvr32.exe
PID 2568 wrote to memory of 4884	2568	EXCEL.EXE	regsvr32.exe
PID 2568 wrote to memory of 4884	2568	EXCEL.EXE	regsvr32.exe
PID 2568 wrote to memory of 4900	2568	EXCEL.EXE	regsvr32.exe
PID 2568 wrote to memory of 4900	2568	EXCEL.EXE	regsvr32.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\d41e55a2dd50a141aeb7385488da938092f5faf1f7b8b98466d6e4515a74ffb9.xls"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2568

C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\soci1.ocx
2⤵
- Process spawned unexpected child process
PID:3036

C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\soci2.ocx
2⤵
- Process spawned unexpected child process
PID:3400

C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\soci3.ocx
2⤵
- Process spawned unexpected child process
PID:4884

C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\soci4.ocx
2⤵
- Process spawned unexpected child process
PID:4900

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

2

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

memory/2568-117-0x00007FF95DF50000-0x00007FF95DF60000-memory.dmp

Filesize
64KB

Download
memory/2568-118-0x00007FF95DF50000-0x00007FF95DF60000-memory.dmp

Filesize
64KB

Download
memory/2568-119-0x00007FF95DF50000-0x00007FF95DF60000-memory.dmp

Filesize
64KB

Download
memory/2568-120-0x00007FF95DF50000-0x00007FF95DF60000-memory.dmp

Filesize
64KB

Download
memory/2568-129-0x00007FF95B300000-0x00007FF95B310000-memory.dmp

Filesize
64KB

Download
memory/2568-130-0x00007FF95B300000-0x00007FF95B310000-memory.dmp

Filesize
64KB

Download
memory/3036-263-0x0000000000000000-mapping.dmp

Download
memory/3400-264-0x0000000000000000-mapping.dmp

Download
memory/4884-265-0x0000000000000000-mapping.dmp

Download
memory/4900-268-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads