feb23d6826e3d6ee55234a32bc00e4c612eb81a7e3f5cd7fbf493d77afcf4fa1

General

Target

feb23d6826e3d6ee55234a32bc00e4c612eb81a7e3f5cd7fbf493d77afcf4fa1.xls
Size

95KB
MD5

85e6b9b3179f1cd3ce11de537812d2e6
SHA1

11bbb3506e06286316f77c8f5dba879f1668867b
SHA256

feb23d6826e3d6ee55234a32bc00e4c612eb81a7e3f5cd7fbf493d77afcf4fa1
SHA512

0d23cb01a6addf3504f01377ac01e41ac75249d6592a00e38f5a86b020aca8ffb278cf76406921276b29abaafe1cdf44351957ac9a02117cf493217d4cf80828

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	2840	2768	regsvr32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	2440	2768	regsvr32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	1324	2768	regsvr32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	2404	2768	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

2768 EXCEL.EXE
Suspicious use of FindShellTrayWindow 2 IoCs

Processes:

EXCEL.EXE

pid process

2768 EXCEL.EXE
2768 EXCEL.EXE

Suspicious use of SetWindowsHookEx 12 IoCs

Processes:

EXCEL.EXE

pid	process
2768	EXCEL.EXE
2768	EXCEL.EXE
2768	EXCEL.EXE
2768	EXCEL.EXE
2768	EXCEL.EXE
2768	EXCEL.EXE
2768	EXCEL.EXE
2768	EXCEL.EXE
2768	EXCEL.EXE
2768	EXCEL.EXE
2768	EXCEL.EXE
2768	EXCEL.EXE

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

EXCEL.EXE

description	pid	process	target process
PID 2768 wrote to memory of 2840	2768	EXCEL.EXE	regsvr32.exe
PID 2768 wrote to memory of 2840	2768	EXCEL.EXE	regsvr32.exe
PID 2768 wrote to memory of 2440	2768	EXCEL.EXE	regsvr32.exe
PID 2768 wrote to memory of 2440	2768	EXCEL.EXE	regsvr32.exe
PID 2768 wrote to memory of 1324	2768	EXCEL.EXE	regsvr32.exe
PID 2768 wrote to memory of 1324	2768	EXCEL.EXE	regsvr32.exe
PID 2768 wrote to memory of 2404	2768	EXCEL.EXE	regsvr32.exe
PID 2768 wrote to memory of 2404	2768	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\feb23d6826e3d6ee55234a32bc00e4c612eb81a7e3f5cd7fbf493d77afcf4fa1.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:2768

C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\soci1.ocx
2⤵
- Process spawned unexpected child process
PID:2840

C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\soci2.ocx
2⤵
- Process spawned unexpected child process
PID:2440

C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\soci3.ocx
2⤵
- Process spawned unexpected child process
PID:1324

C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\soci4.ocx
2⤵
- Process spawned unexpected child process
PID:2404

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/1324-255-0x0000000000000000-mapping.dmp

Download
memory/2404-258-0x0000000000000000-mapping.dmp

Download
memory/2440-254-0x0000000000000000-mapping.dmp

Download
memory/2768-122-0x00007FF893310000-0x00007FF893320000-memory.dmp

Filesize
64KB

Download
memory/2768-131-0x00007FF8907C0000-0x00007FF8907D0000-memory.dmp

Filesize
64KB

Download
memory/2768-132-0x00007FF8907C0000-0x00007FF8907D0000-memory.dmp

Filesize
64KB

Download
memory/2768-119-0x00007FF893310000-0x00007FF893320000-memory.dmp

Filesize
64KB

Download
memory/2768-121-0x00007FF893310000-0x00007FF893320000-memory.dmp

Filesize
64KB

Download
memory/2768-120-0x00007FF893310000-0x00007FF893320000-memory.dmp

Filesize
64KB

Download
memory/2768-295-0x00007FF893310000-0x00007FF893320000-memory.dmp

Filesize
64KB

Download
memory/2768-296-0x00007FF893310000-0x00007FF893320000-memory.dmp

Filesize
64KB

Download
memory/2768-297-0x00007FF893310000-0x00007FF893320000-memory.dmp

Filesize
64KB

Download
memory/2768-298-0x00007FF893310000-0x00007FF893320000-memory.dmp

Filesize
64KB

Download
memory/2840-253-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads