b01b95e21aac71169f0dce51e5f47abdaa74e14cea06320eb2dc67552fa4b858

General

Target

b01b95e21aac71169f0dce51e5f47abdaa74e14cea06320eb2dc67552fa4b858.xls
Size

95KB
MD5

d9f16e8f8223a34181d950015078b515
SHA1

0400a4b51e3b92d4b2a0bfafbf0c4ee27134183c
SHA256

b01b95e21aac71169f0dce51e5f47abdaa74e14cea06320eb2dc67552fa4b858
SHA512

39ddd6b202bdc2039a14c750ae7a2e9516b024b61ba55f12d1d67e6bca9afd062cd2dfe163c724a427c9f6a1cf798ad21f8b0038be0268ca5b8e5f9d64f9aac9

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	5028	2888	regsvr32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	4032	2888	regsvr32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	4012	2888	regsvr32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	4840	2888	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 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

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

2888 EXCEL.EXE
Suspicious use of FindShellTrayWindow 2 IoCs

Processes:

EXCEL.EXE

pid process

2888 EXCEL.EXE
2888 EXCEL.EXE

Suspicious use of SetWindowsHookEx 12 IoCs

Processes:

EXCEL.EXE

pid	process
2888	EXCEL.EXE
2888	EXCEL.EXE
2888	EXCEL.EXE
2888	EXCEL.EXE
2888	EXCEL.EXE
2888	EXCEL.EXE
2888	EXCEL.EXE
2888	EXCEL.EXE
2888	EXCEL.EXE
2888	EXCEL.EXE
2888	EXCEL.EXE
2888	EXCEL.EXE

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

EXCEL.EXE

description	pid	process	target process
PID 2888 wrote to memory of 5028	2888	EXCEL.EXE	regsvr32.exe
PID 2888 wrote to memory of 5028	2888	EXCEL.EXE	regsvr32.exe
PID 2888 wrote to memory of 4032	2888	EXCEL.EXE	regsvr32.exe
PID 2888 wrote to memory of 4032	2888	EXCEL.EXE	regsvr32.exe
PID 2888 wrote to memory of 4012	2888	EXCEL.EXE	regsvr32.exe
PID 2888 wrote to memory of 4012	2888	EXCEL.EXE	regsvr32.exe
PID 2888 wrote to memory of 4840	2888	EXCEL.EXE	regsvr32.exe
PID 2888 wrote to memory of 4840	2888	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\b01b95e21aac71169f0dce51e5f47abdaa74e14cea06320eb2dc67552fa4b858.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:2888

C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\soci1.ocx
2⤵
- Process spawned unexpected child process
PID:5028

C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\soci2.ocx
2⤵
- Process spawned unexpected child process
PID:4032

C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\soci3.ocx
2⤵
- Process spawned unexpected child process
PID:4012

C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\soci4.ocx
2⤵
- Process spawned unexpected child process
PID:4840

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/2888-118-0x00007FF860FF0000-0x00007FF861000000-memory.dmp

Filesize
64KB

Download
memory/2888-119-0x00007FF860FF0000-0x00007FF861000000-memory.dmp

Filesize
64KB

Download
memory/2888-120-0x00007FF860FF0000-0x00007FF861000000-memory.dmp

Filesize
64KB

Download
memory/2888-121-0x00007FF860FF0000-0x00007FF861000000-memory.dmp

Filesize
64KB

Download
memory/2888-130-0x00007FF85E330000-0x00007FF85E340000-memory.dmp

Filesize
64KB

Download
memory/2888-131-0x00007FF85E330000-0x00007FF85E340000-memory.dmp

Filesize
64KB

Download
memory/4012-254-0x0000000000000000-mapping.dmp

Download
memory/4032-253-0x0000000000000000-mapping.dmp

Download
memory/4840-257-0x0000000000000000-mapping.dmp

Download
memory/5028-252-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads