5573a5c9fb974b174ab028b3910cf0d1829bb4e88ca78b1f79048f8b7bc70fbe

General

Target

5573a5c9fb974b174ab028b3910cf0d1829bb4e88ca78b1f79048f8b7bc70fbe.xls
Size

95KB
MD5

aab3a7c7b7c6553c038d546d6cbbb291
SHA1

cac232c9441d3d07e568de7676ede0924c42beb6
SHA256

5573a5c9fb974b174ab028b3910cf0d1829bb4e88ca78b1f79048f8b7bc70fbe
SHA512

fbd58b8cf3fcbc8af6db113d3f20c79d46c9e325dac0a97a94e3ae076264281dba36f4a7e3457700eeacf89ee736f74677b923093937d5758e3bf18ecf3ae222

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	2360	1956	regsvr32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	3740	1956	regsvr32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	3200	1956	regsvr32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	3972	1956	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

1956 EXCEL.EXE
Suspicious use of FindShellTrayWindow 2 IoCs

Processes:

EXCEL.EXE

pid process

1956 EXCEL.EXE
1956 EXCEL.EXE

Suspicious use of SetWindowsHookEx 12 IoCs

Processes:

EXCEL.EXE

pid	process
1956	EXCEL.EXE
1956	EXCEL.EXE
1956	EXCEL.EXE
1956	EXCEL.EXE
1956	EXCEL.EXE
1956	EXCEL.EXE
1956	EXCEL.EXE
1956	EXCEL.EXE
1956	EXCEL.EXE
1956	EXCEL.EXE
1956	EXCEL.EXE
1956	EXCEL.EXE

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

EXCEL.EXE

description	pid	process	target process
PID 1956 wrote to memory of 2360	1956	EXCEL.EXE	regsvr32.exe
PID 1956 wrote to memory of 2360	1956	EXCEL.EXE	regsvr32.exe
PID 1956 wrote to memory of 3740	1956	EXCEL.EXE	regsvr32.exe
PID 1956 wrote to memory of 3740	1956	EXCEL.EXE	regsvr32.exe
PID 1956 wrote to memory of 3200	1956	EXCEL.EXE	regsvr32.exe
PID 1956 wrote to memory of 3200	1956	EXCEL.EXE	regsvr32.exe
PID 1956 wrote to memory of 3972	1956	EXCEL.EXE	regsvr32.exe
PID 1956 wrote to memory of 3972	1956	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\5573a5c9fb974b174ab028b3910cf0d1829bb4e88ca78b1f79048f8b7bc70fbe.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:1956

C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\soci1.ocx
2⤵
- Process spawned unexpected child process
PID:2360

C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\soci2.ocx
2⤵
- Process spawned unexpected child process
PID:3740

C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\soci3.ocx
2⤵
- Process spawned unexpected child process
PID:3200

C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\soci4.ocx
2⤵
- Process spawned unexpected child process
PID:3972

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/1956-308-0x00007FFDC1640000-0x00007FFDC1650000-memory.dmp

Filesize
64KB

Download
memory/1956-117-0x00007FFDC1640000-0x00007FFDC1650000-memory.dmp

Filesize
64KB

Download
memory/1956-118-0x00007FFDC1640000-0x00007FFDC1650000-memory.dmp

Filesize
64KB

Download
memory/1956-119-0x00007FFDC1640000-0x00007FFDC1650000-memory.dmp

Filesize
64KB

Download
memory/1956-128-0x00007FFDBDB80000-0x00007FFDBDB90000-memory.dmp

Filesize
64KB

Download
memory/1956-129-0x00007FFDBDB80000-0x00007FFDBDB90000-memory.dmp

Filesize
64KB

Download
memory/1956-116-0x00007FFDC1640000-0x00007FFDC1650000-memory.dmp

Filesize
64KB

Download
memory/1956-311-0x00007FFDC1640000-0x00007FFDC1650000-memory.dmp

Filesize
64KB

Download
memory/1956-310-0x00007FFDC1640000-0x00007FFDC1650000-memory.dmp

Filesize
64KB

Download
memory/1956-309-0x00007FFDC1640000-0x00007FFDC1650000-memory.dmp

Filesize
64KB

Download
memory/2360-266-0x0000000000000000-mapping.dmp

Download
memory/3200-268-0x0000000000000000-mapping.dmp

Download
memory/3740-267-0x0000000000000000-mapping.dmp

Download
memory/3972-271-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads