a6cf3f9dda44e7d7890a3138b95a347d980bf88dec39ea7a7a64bebbb9614795

General

Target

a6cf3f9dda44e7d7890a3138b95a347d980bf88dec39ea7a7a64bebbb9614795.xls
Size

95KB
MD5

57c402c1a3687e45a4f7526dfa955954
SHA1

e6f77a9177869d1ad6e3ed0bbce1dc00b1a6e7e0
SHA256

a6cf3f9dda44e7d7890a3138b95a347d980bf88dec39ea7a7a64bebbb9614795
SHA512

badd1145ac4f32348983eb791fe080e9f9fe64f90dcc3dc4f948f28bd2aa961e8436408afb402025b325e9af3861897b91848b7210d893792fda1aeb9f323dd6

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	3972	2424	regsvr32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	4792	2424	regsvr32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	4032	2424	regsvr32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	2760	2424	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

2424 EXCEL.EXE

Suspicious use of SetWindowsHookEx 12 IoCs

Processes:

EXCEL.EXE

pid	process
2424	EXCEL.EXE
2424	EXCEL.EXE
2424	EXCEL.EXE
2424	EXCEL.EXE
2424	EXCEL.EXE
2424	EXCEL.EXE
2424	EXCEL.EXE
2424	EXCEL.EXE
2424	EXCEL.EXE
2424	EXCEL.EXE
2424	EXCEL.EXE
2424	EXCEL.EXE

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

EXCEL.EXE

description	pid	process	target process
PID 2424 wrote to memory of 3972	2424	EXCEL.EXE	regsvr32.exe
PID 2424 wrote to memory of 3972	2424	EXCEL.EXE	regsvr32.exe
PID 2424 wrote to memory of 4792	2424	EXCEL.EXE	regsvr32.exe
PID 2424 wrote to memory of 4792	2424	EXCEL.EXE	regsvr32.exe
PID 2424 wrote to memory of 4032	2424	EXCEL.EXE	regsvr32.exe
PID 2424 wrote to memory of 4032	2424	EXCEL.EXE	regsvr32.exe
PID 2424 wrote to memory of 2760	2424	EXCEL.EXE	regsvr32.exe
PID 2424 wrote to memory of 2760	2424	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\a6cf3f9dda44e7d7890a3138b95a347d980bf88dec39ea7a7a64bebbb9614795.xls"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2424

C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\soci1.ocx
2⤵
- Process spawned unexpected child process
PID:3972

C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\soci2.ocx
2⤵
- Process spawned unexpected child process
PID:4792

C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\soci3.ocx
2⤵
- Process spawned unexpected child process
PID:4032

C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\soci4.ocx
2⤵
- Process spawned unexpected child process
PID:2760

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/2424-117-0x00007FFE6BC10000-0x00007FFE6BC20000-memory.dmp

Filesize
64KB

Download
memory/2424-118-0x00007FFE6BC10000-0x00007FFE6BC20000-memory.dmp

Filesize
64KB

Download
memory/2424-119-0x00007FFE6BC10000-0x00007FFE6BC20000-memory.dmp

Filesize
64KB

Download
memory/2424-120-0x00007FFE6BC10000-0x00007FFE6BC20000-memory.dmp

Filesize
64KB

Download
memory/2424-129-0x00007FFE68960000-0x00007FFE68970000-memory.dmp

Filesize
64KB

Download
memory/2424-130-0x00007FFE68960000-0x00007FFE68970000-memory.dmp

Filesize
64KB

Download
memory/2760-264-0x0000000000000000-mapping.dmp

Download
memory/3972-259-0x0000000000000000-mapping.dmp

Download
memory/4032-261-0x0000000000000000-mapping.dmp

Download
memory/4792-260-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads