e49735b02b85a1cbbb79d3956b797b8f26f6b72845f28cd684a35b56b78daaf3

General

Target

e49735b02b85a1cbbb79d3956b797b8f26f6b72845f28cd684a35b56b78daaf3.xls
Size

95KB
MD5

f825b4aad9b63a14f64b24fb469bc4ac
SHA1

73490f1239d0d2703a06cbc3fc2029aeb00e244c
SHA256

e49735b02b85a1cbbb79d3956b797b8f26f6b72845f28cd684a35b56b78daaf3
SHA512

1f60f6fc16b41e76e86cb5bdf771fec448d2812f988f3f1bc527595ab656f4799627eec583e2b137dbb7f328fe3af1f3fd4eed6620388de8f78edf06a5cb87dc

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	3740	3916	regsvr32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	3744	3916	regsvr32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	4492	3916	regsvr32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	4536	3916	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

3916 EXCEL.EXE
Suspicious use of FindShellTrayWindow 2 IoCs

Processes:

EXCEL.EXE

pid process

3916 EXCEL.EXE
3916 EXCEL.EXE

Suspicious use of SetWindowsHookEx 12 IoCs

Processes:

EXCEL.EXE

pid	process
3916	EXCEL.EXE
3916	EXCEL.EXE
3916	EXCEL.EXE
3916	EXCEL.EXE
3916	EXCEL.EXE
3916	EXCEL.EXE
3916	EXCEL.EXE
3916	EXCEL.EXE
3916	EXCEL.EXE
3916	EXCEL.EXE
3916	EXCEL.EXE
3916	EXCEL.EXE

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

EXCEL.EXE

description	pid	process	target process
PID 3916 wrote to memory of 3740	3916	EXCEL.EXE	regsvr32.exe
PID 3916 wrote to memory of 3740	3916	EXCEL.EXE	regsvr32.exe
PID 3916 wrote to memory of 3744	3916	EXCEL.EXE	regsvr32.exe
PID 3916 wrote to memory of 3744	3916	EXCEL.EXE	regsvr32.exe
PID 3916 wrote to memory of 4492	3916	EXCEL.EXE	regsvr32.exe
PID 3916 wrote to memory of 4492	3916	EXCEL.EXE	regsvr32.exe
PID 3916 wrote to memory of 4536	3916	EXCEL.EXE	regsvr32.exe
PID 3916 wrote to memory of 4536	3916	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\e49735b02b85a1cbbb79d3956b797b8f26f6b72845f28cd684a35b56b78daaf3.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:3916

C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\soci1.ocx
2⤵
- Process spawned unexpected child process
PID:3740

C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\soci2.ocx
2⤵
- Process spawned unexpected child process
PID:3744

C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\soci3.ocx
2⤵
- Process spawned unexpected child process
PID:4492

C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\soci4.ocx
2⤵
- Process spawned unexpected child process
PID:4536

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/3740-251-0x0000000000000000-mapping.dmp

Download
memory/3744-252-0x0000000000000000-mapping.dmp

Download
memory/3916-117-0x00007FFD648C0000-0x00007FFD648D0000-memory.dmp

Filesize
64KB

Download
memory/3916-118-0x00007FFD648C0000-0x00007FFD648D0000-memory.dmp

Filesize
64KB

Download
memory/3916-119-0x00007FFD648C0000-0x00007FFD648D0000-memory.dmp

Filesize
64KB

Download
memory/3916-120-0x00007FFD648C0000-0x00007FFD648D0000-memory.dmp

Filesize
64KB

Download
memory/3916-129-0x00007FFD618E0000-0x00007FFD618F0000-memory.dmp

Filesize
64KB

Download
memory/3916-130-0x00007FFD618E0000-0x00007FFD618F0000-memory.dmp

Filesize
64KB

Download
memory/4492-253-0x0000000000000000-mapping.dmp

Download
memory/4536-256-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads