f157e477fbd9114355fbd3b3cfcb2078f009492ee06350f4ef220f8a280a2591

General

Target

f157e477fbd9114355fbd3b3cfcb2078f009492ee06350f4ef220f8a280a2591.xls
Size

95KB
MD5

0135dab9ad9c33760b2ea459cc3f928d
SHA1

c0bfac997ba4b130f58a08e9d617af42dd32208c
SHA256

f157e477fbd9114355fbd3b3cfcb2078f009492ee06350f4ef220f8a280a2591
SHA512

092c63f32166890d12d8df95b94009f7da533a8b2e4cf7f3e97c8c1c3091e54793a25f7ebdadd2e1b9c0f5b326fa41ceb460c385b89ee561558799f7bb2457ae

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	3328	2060	regsvr32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	3156	2060	regsvr32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	4020	2060	regsvr32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	3724	2060	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

2060 EXCEL.EXE
Suspicious use of FindShellTrayWindow 2 IoCs

Processes:

EXCEL.EXE

pid process

2060 EXCEL.EXE
2060 EXCEL.EXE

Suspicious use of SetWindowsHookEx 12 IoCs

Processes:

EXCEL.EXE

pid	process
2060	EXCEL.EXE
2060	EXCEL.EXE
2060	EXCEL.EXE
2060	EXCEL.EXE
2060	EXCEL.EXE
2060	EXCEL.EXE
2060	EXCEL.EXE
2060	EXCEL.EXE
2060	EXCEL.EXE
2060	EXCEL.EXE
2060	EXCEL.EXE
2060	EXCEL.EXE

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

EXCEL.EXE

description	pid	process	target process
PID 2060 wrote to memory of 3328	2060	EXCEL.EXE	regsvr32.exe
PID 2060 wrote to memory of 3328	2060	EXCEL.EXE	regsvr32.exe
PID 2060 wrote to memory of 3156	2060	EXCEL.EXE	regsvr32.exe
PID 2060 wrote to memory of 3156	2060	EXCEL.EXE	regsvr32.exe
PID 2060 wrote to memory of 4020	2060	EXCEL.EXE	regsvr32.exe
PID 2060 wrote to memory of 4020	2060	EXCEL.EXE	regsvr32.exe
PID 2060 wrote to memory of 3724	2060	EXCEL.EXE	regsvr32.exe
PID 2060 wrote to memory of 3724	2060	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\f157e477fbd9114355fbd3b3cfcb2078f009492ee06350f4ef220f8a280a2591.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:2060

C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\soci1.ocx
2⤵
- Process spawned unexpected child process
PID:3328

C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\soci2.ocx
2⤵
- Process spawned unexpected child process
PID:3156

C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\soci3.ocx
2⤵
- Process spawned unexpected child process
PID:4020

C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\soci4.ocx
2⤵
- Process spawned unexpected child process
PID:3724

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

Replay Monitor

Loading Replay Monitor...

Downloads

memory/2060-312-0x00007FFAD5750000-0x00007FFAD5760000-memory.dmp

Filesize
64KB

Download
memory/2060-120-0x00007FFAD5750000-0x00007FFAD5760000-memory.dmp

Filesize
64KB

Download
memory/2060-121-0x00007FFAD5750000-0x00007FFAD5760000-memory.dmp

Filesize
64KB

Download
memory/2060-122-0x00007FFAD5750000-0x00007FFAD5760000-memory.dmp

Filesize
64KB

Download
memory/2060-131-0x00007FFAD2390000-0x00007FFAD23A0000-memory.dmp

Filesize
64KB

Download
memory/2060-132-0x00007FFAD2390000-0x00007FFAD23A0000-memory.dmp

Filesize
64KB

Download
memory/2060-119-0x00007FFAD5750000-0x00007FFAD5760000-memory.dmp

Filesize
64KB

Download
memory/2060-314-0x00007FFAD5750000-0x00007FFAD5760000-memory.dmp

Filesize
64KB

Download
memory/2060-313-0x00007FFAD5750000-0x00007FFAD5760000-memory.dmp

Filesize
64KB

Download
memory/2060-311-0x00007FFAD5750000-0x00007FFAD5760000-memory.dmp

Filesize
64KB

Download
memory/3156-270-0x0000000000000000-mapping.dmp

Download
memory/3328-269-0x0000000000000000-mapping.dmp

Download
memory/3724-274-0x0000000000000000-mapping.dmp

Download
memory/4020-271-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

Replay Monitor

Loading Replay Monitor...

Downloads