bc98ff1d850beba8d207fd613ffddb955e18612aec1cd87522f95f834c64b315

General

Target

bc98ff1d850beba8d207fd613ffddb955e18612aec1cd87522f95f834c64b315.xls
Size

95KB
MD5

43ebae254bcb6c8081b64a33343fdcb8
SHA1

4f333e7f15060cdb9b14ccc019823e08fec58966
SHA256

bc98ff1d850beba8d207fd613ffddb955e18612aec1cd87522f95f834c64b315
SHA512

0da61dba1e64e87914e73cab72b77db4b7709df0228f05a5c24190f86a9e656f7605ef0ceb2821fe1a7307eafe40f6f471b6e6bda0b73b33a0d7a19f22d72691

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	3276	3472	regsvr32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	3580	3472	regsvr32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	3292	3472	regsvr32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	2592	3472	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 value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU	EXCEL.EXE
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\BIOS	EXCEL.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

EXCEL.EXE

pid process

3472 EXCEL.EXE
Suspicious use of FindShellTrayWindow 2 IoCs

Processes:

EXCEL.EXE

pid process

3472 EXCEL.EXE
3472 EXCEL.EXE

Suspicious use of SetWindowsHookEx 12 IoCs

Processes:

EXCEL.EXE

pid	process
3472	EXCEL.EXE
3472	EXCEL.EXE
3472	EXCEL.EXE
3472	EXCEL.EXE
3472	EXCEL.EXE
3472	EXCEL.EXE
3472	EXCEL.EXE
3472	EXCEL.EXE
3472	EXCEL.EXE
3472	EXCEL.EXE
3472	EXCEL.EXE
3472	EXCEL.EXE

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

EXCEL.EXE

description	pid	process	target process
PID 3472 wrote to memory of 3276	3472	EXCEL.EXE	regsvr32.exe
PID 3472 wrote to memory of 3276	3472	EXCEL.EXE	regsvr32.exe
PID 3472 wrote to memory of 3580	3472	EXCEL.EXE	regsvr32.exe
PID 3472 wrote to memory of 3580	3472	EXCEL.EXE	regsvr32.exe
PID 3472 wrote to memory of 3292	3472	EXCEL.EXE	regsvr32.exe
PID 3472 wrote to memory of 3292	3472	EXCEL.EXE	regsvr32.exe
PID 3472 wrote to memory of 2592	3472	EXCEL.EXE	regsvr32.exe
PID 3472 wrote to memory of 2592	3472	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\bc98ff1d850beba8d207fd613ffddb955e18612aec1cd87522f95f834c64b315.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:3472

C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\soci1.ocx
2⤵
- Process spawned unexpected child process
PID:3276

C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\soci2.ocx
2⤵
- Process spawned unexpected child process
PID:3580

C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\soci3.ocx
2⤵
- Process spawned unexpected child process
PID:3292

C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\soci4.ocx
2⤵
- Process spawned unexpected child process
PID:2592

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/2592-271-0x0000000000000000-mapping.dmp

Download
memory/3276-266-0x0000000000000000-mapping.dmp

Download
memory/3292-268-0x0000000000000000-mapping.dmp

Download
memory/3472-118-0x00007FF84FAA0000-0x00007FF84FAB0000-memory.dmp

Filesize
64KB

Download
memory/3472-119-0x00007FF84FAA0000-0x00007FF84FAB0000-memory.dmp

Filesize
64KB

Download
memory/3472-128-0x00007FF84CAB0000-0x00007FF84CAC0000-memory.dmp

Filesize
64KB

Download
memory/3472-129-0x00007FF84CAB0000-0x00007FF84CAC0000-memory.dmp

Filesize
64KB

Download
memory/3472-116-0x00007FF84FAA0000-0x00007FF84FAB0000-memory.dmp

Filesize
64KB

Download
memory/3472-117-0x00007FF84FAA0000-0x00007FF84FAB0000-memory.dmp

Filesize
64KB

Download
memory/3472-308-0x00007FF84FAA0000-0x00007FF84FAB0000-memory.dmp

Filesize
64KB

Download
memory/3472-309-0x00007FF84FAA0000-0x00007FF84FAB0000-memory.dmp

Filesize
64KB

Download
memory/3472-310-0x00007FF84FAA0000-0x00007FF84FAB0000-memory.dmp

Filesize
64KB

Download
memory/3472-311-0x00007FF84FAA0000-0x00007FF84FAB0000-memory.dmp

Filesize
64KB

Download
memory/3580-267-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads