39c7e218a99b4f035a7f5ad7e85a436cfea165bca4df26ea4047d4522f9944eb

General

Target

39c7e218a99b4f035a7f5ad7e85a436cfea165bca4df26ea4047d4522f9944eb.xls
Size

95KB
MD5

a4915c94ebed988789f69e4b92780e1e
SHA1

5226c240239dda935e09f9f4938e9d7750620d4d
SHA256

39c7e218a99b4f035a7f5ad7e85a436cfea165bca4df26ea4047d4522f9944eb
SHA512

f081fd1db1ba86a795f46b6143e73d85958e6d863c726b3eacac1c4865be24428d8a5eddfe56a5ac13ceac66137f9d847debf031bf0ed1ab07ed04372d93e196

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	1020	2864	regsvr32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	3280	2864	regsvr32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	3444	2864	regsvr32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	4880	2864	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

2864 EXCEL.EXE
Suspicious use of FindShellTrayWindow 2 IoCs

Processes:

EXCEL.EXE

pid process

2864 EXCEL.EXE
2864 EXCEL.EXE

Suspicious use of SetWindowsHookEx 12 IoCs

Processes:

EXCEL.EXE

pid	process
2864	EXCEL.EXE
2864	EXCEL.EXE
2864	EXCEL.EXE
2864	EXCEL.EXE
2864	EXCEL.EXE
2864	EXCEL.EXE
2864	EXCEL.EXE
2864	EXCEL.EXE
2864	EXCEL.EXE
2864	EXCEL.EXE
2864	EXCEL.EXE
2864	EXCEL.EXE

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

EXCEL.EXE

description	pid	process	target process
PID 2864 wrote to memory of 1020	2864	EXCEL.EXE	regsvr32.exe
PID 2864 wrote to memory of 1020	2864	EXCEL.EXE	regsvr32.exe
PID 2864 wrote to memory of 3280	2864	EXCEL.EXE	regsvr32.exe
PID 2864 wrote to memory of 3280	2864	EXCEL.EXE	regsvr32.exe
PID 2864 wrote to memory of 3444	2864	EXCEL.EXE	regsvr32.exe
PID 2864 wrote to memory of 3444	2864	EXCEL.EXE	regsvr32.exe
PID 2864 wrote to memory of 4880	2864	EXCEL.EXE	regsvr32.exe
PID 2864 wrote to memory of 4880	2864	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\39c7e218a99b4f035a7f5ad7e85a436cfea165bca4df26ea4047d4522f9944eb.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:2864

C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\soci1.ocx
2⤵
- Process spawned unexpected child process
PID:1020

C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\soci2.ocx
2⤵
- Process spawned unexpected child process
PID:3280

C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\soci3.ocx
2⤵
- Process spawned unexpected child process
PID:3444

C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\soci4.ocx
2⤵
- Process spawned unexpected child process
PID:4880

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/1020-264-0x0000000000000000-mapping.dmp

Download
memory/2864-114-0x00007FFA3E5B0000-0x00007FFA3E5C0000-memory.dmp

Filesize
64KB

Download
memory/2864-115-0x00007FFA3E5B0000-0x00007FFA3E5C0000-memory.dmp

Filesize
64KB

Download
memory/2864-116-0x00007FFA3E5B0000-0x00007FFA3E5C0000-memory.dmp

Filesize
64KB

Download
memory/2864-117-0x00007FFA3E5B0000-0x00007FFA3E5C0000-memory.dmp

Filesize
64KB

Download
memory/2864-126-0x00007FFA3B300000-0x00007FFA3B310000-memory.dmp

Filesize
64KB

Download
memory/2864-127-0x00007FFA3B300000-0x00007FFA3B310000-memory.dmp

Filesize
64KB

Download
memory/3280-265-0x0000000000000000-mapping.dmp

Download
memory/3444-266-0x0000000000000000-mapping.dmp

Download
memory/4880-269-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads