cc8ea77db73d1a7b64c21ee20e8bf87a6674f333cc81674502bc1dec67c3d5b3

General

Target

cc8ea77db73d1a7b64c21ee20e8bf87a6674f333cc81674502bc1dec67c3d5b3.xls
Size

95KB
MD5

4c8e21dc89ecb9c3bc839d48000e1bd3
SHA1

af65a5e31783fee6bfd89b37e0cb149b405200b2
SHA256

cc8ea77db73d1a7b64c21ee20e8bf87a6674f333cc81674502bc1dec67c3d5b3
SHA512

444bc6d2f2adc35e0374b79eaf91467d5e259464ac56c56d94b76d618e534b89cbf49de1f66e66928aa79a277f3d7b0c21afae14e9261f61433fcfa0812e73aa

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	4676	2636	regsvr32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	1900	2636	regsvr32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	3492	2636	regsvr32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	3712	2636	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

2636 EXCEL.EXE
Suspicious use of FindShellTrayWindow 2 IoCs

Processes:

EXCEL.EXE

pid process

2636 EXCEL.EXE
2636 EXCEL.EXE

Suspicious use of SetWindowsHookEx 12 IoCs

Processes:

EXCEL.EXE

pid	process
2636	EXCEL.EXE
2636	EXCEL.EXE
2636	EXCEL.EXE
2636	EXCEL.EXE
2636	EXCEL.EXE
2636	EXCEL.EXE
2636	EXCEL.EXE
2636	EXCEL.EXE
2636	EXCEL.EXE
2636	EXCEL.EXE
2636	EXCEL.EXE
2636	EXCEL.EXE

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

EXCEL.EXE

description	pid	process	target process
PID 2636 wrote to memory of 4676	2636	EXCEL.EXE	regsvr32.exe
PID 2636 wrote to memory of 4676	2636	EXCEL.EXE	regsvr32.exe
PID 2636 wrote to memory of 1900	2636	EXCEL.EXE	regsvr32.exe
PID 2636 wrote to memory of 1900	2636	EXCEL.EXE	regsvr32.exe
PID 2636 wrote to memory of 3492	2636	EXCEL.EXE	regsvr32.exe
PID 2636 wrote to memory of 3492	2636	EXCEL.EXE	regsvr32.exe
PID 2636 wrote to memory of 3712	2636	EXCEL.EXE	regsvr32.exe
PID 2636 wrote to memory of 3712	2636	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\cc8ea77db73d1a7b64c21ee20e8bf87a6674f333cc81674502bc1dec67c3d5b3.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:2636

C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\soci1.ocx
2⤵
- Process spawned unexpected child process
PID:4676

C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\soci2.ocx
2⤵
- Process spawned unexpected child process
PID:1900

C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\soci3.ocx
2⤵
- Process spawned unexpected child process
PID:3492

C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\soci4.ocx
2⤵
- Process spawned unexpected child process
PID:3712

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/1900-252-0x0000000000000000-mapping.dmp

Download
memory/2636-117-0x00007FFE836A0000-0x00007FFE836B0000-memory.dmp

Filesize
64KB

Download
memory/2636-118-0x00007FFE836A0000-0x00007FFE836B0000-memory.dmp

Filesize
64KB

Download
memory/2636-119-0x00007FFE836A0000-0x00007FFE836B0000-memory.dmp

Filesize
64KB

Download
memory/2636-120-0x00007FFE836A0000-0x00007FFE836B0000-memory.dmp

Filesize
64KB

Download
memory/2636-129-0x00007FFE80A50000-0x00007FFE80A60000-memory.dmp

Filesize
64KB

Download
memory/2636-130-0x00007FFE80A50000-0x00007FFE80A60000-memory.dmp

Filesize
64KB

Download
memory/3492-253-0x0000000000000000-mapping.dmp

Download
memory/3712-256-0x0000000000000000-mapping.dmp

Download
memory/4676-251-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads