394ffb3299bf004d44c84ee39ec5199a5b9582e97d0f4f00921e7bb74b9fdfaf

General

Target

394ffb3299bf004d44c84ee39ec5199a5b9582e97d0f4f00921e7bb74b9fdfaf.xls
Size

95KB
MD5

c957e2f8e8d6f8fa9c9b75580bf53b14
SHA1

0e2183f10f77cc68473813f53a52a19781b23783
SHA256

394ffb3299bf004d44c84ee39ec5199a5b9582e97d0f4f00921e7bb74b9fdfaf
SHA512

7e674e291c2cc8da1cffb23466d30176c2707ad1d5e8d3e64beb9e185cd1659dd344d94f49acf34cd6efb4dbaed6a1706f334f22e4e103ec5085f05bd4fced4e

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	2476	2784	regsvr32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	3592	2784	regsvr32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	4376	2784	regsvr32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	4988	2784	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\SystemSKU	EXCEL.EXE
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\BIOS	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily	EXCEL.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

EXCEL.EXE

pid process

2784 EXCEL.EXE
Suspicious use of FindShellTrayWindow 2 IoCs

Processes:

EXCEL.EXE

pid process

2784 EXCEL.EXE
2784 EXCEL.EXE

Suspicious use of SetWindowsHookEx 12 IoCs

Processes:

EXCEL.EXE

pid	process
2784	EXCEL.EXE
2784	EXCEL.EXE
2784	EXCEL.EXE
2784	EXCEL.EXE
2784	EXCEL.EXE
2784	EXCEL.EXE
2784	EXCEL.EXE
2784	EXCEL.EXE
2784	EXCEL.EXE
2784	EXCEL.EXE
2784	EXCEL.EXE
2784	EXCEL.EXE

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

EXCEL.EXE

description	pid	process	target process
PID 2784 wrote to memory of 2476	2784	EXCEL.EXE	regsvr32.exe
PID 2784 wrote to memory of 2476	2784	EXCEL.EXE	regsvr32.exe
PID 2784 wrote to memory of 3592	2784	EXCEL.EXE	regsvr32.exe
PID 2784 wrote to memory of 3592	2784	EXCEL.EXE	regsvr32.exe
PID 2784 wrote to memory of 4376	2784	EXCEL.EXE	regsvr32.exe
PID 2784 wrote to memory of 4376	2784	EXCEL.EXE	regsvr32.exe
PID 2784 wrote to memory of 4988	2784	EXCEL.EXE	regsvr32.exe
PID 2784 wrote to memory of 4988	2784	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\394ffb3299bf004d44c84ee39ec5199a5b9582e97d0f4f00921e7bb74b9fdfaf.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:2784

C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\soci1.ocx
2⤵
- Process spawned unexpected child process
PID:2476

C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\soci2.ocx
2⤵
- Process spawned unexpected child process
PID:3592

C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\soci3.ocx
2⤵
- Process spawned unexpected child process
PID:4376

C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\soci4.ocx
2⤵
- Process spawned unexpected child process
PID:4988

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/2476-252-0x0000000000000000-mapping.dmp

Download
memory/2784-118-0x00007FFD9FAC0000-0x00007FFD9FAD0000-memory.dmp

Filesize
64KB

Download
memory/2784-119-0x00007FFD9FAC0000-0x00007FFD9FAD0000-memory.dmp

Filesize
64KB

Download
memory/2784-120-0x00007FFD9FAC0000-0x00007FFD9FAD0000-memory.dmp

Filesize
64KB

Download
memory/2784-121-0x00007FFD9FAC0000-0x00007FFD9FAD0000-memory.dmp

Filesize
64KB

Download
memory/2784-130-0x00007FFD9C190000-0x00007FFD9C1A0000-memory.dmp

Filesize
64KB

Download
memory/2784-131-0x00007FFD9C190000-0x00007FFD9C1A0000-memory.dmp

Filesize
64KB

Download
memory/3592-253-0x0000000000000000-mapping.dmp

Download
memory/4376-254-0x0000000000000000-mapping.dmp

Download
memory/4988-257-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads