73b4ea14f2eb303eb3d79e89d4450bb49959d802a92d36a543718f6c55e55ad0

General

Target

73b4ea14f2eb303eb3d79e89d4450bb49959d802a92d36a543718f6c55e55ad0.xls
Size

95KB
MD5

3ef26acba937471f977d307828ef740e
SHA1

1e6266a1700db4cdc1681890951d20b6b1b64d4d
SHA256

73b4ea14f2eb303eb3d79e89d4450bb49959d802a92d36a543718f6c55e55ad0
SHA512

ff9a4d1d37f2043093a6df36a98d17927fc85e4ca92b054d4a882cfbaa6024ceda639c0a1953f5e34b1174a08d82b74276596b08ddc98df429981898fcab95b0

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	2608	3220	regsvr32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	1580	3220	regsvr32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	3916	3220	regsvr32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	3012	3220	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

3220 EXCEL.EXE

Suspicious use of SetWindowsHookEx 12 IoCs

Processes:

EXCEL.EXE

pid	process
3220	EXCEL.EXE
3220	EXCEL.EXE
3220	EXCEL.EXE
3220	EXCEL.EXE
3220	EXCEL.EXE
3220	EXCEL.EXE
3220	EXCEL.EXE
3220	EXCEL.EXE
3220	EXCEL.EXE
3220	EXCEL.EXE
3220	EXCEL.EXE
3220	EXCEL.EXE

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

EXCEL.EXE

description	pid	process	target process
PID 3220 wrote to memory of 2608	3220	EXCEL.EXE	regsvr32.exe
PID 3220 wrote to memory of 2608	3220	EXCEL.EXE	regsvr32.exe
PID 3220 wrote to memory of 1580	3220	EXCEL.EXE	regsvr32.exe
PID 3220 wrote to memory of 1580	3220	EXCEL.EXE	regsvr32.exe
PID 3220 wrote to memory of 3916	3220	EXCEL.EXE	regsvr32.exe
PID 3220 wrote to memory of 3916	3220	EXCEL.EXE	regsvr32.exe
PID 3220 wrote to memory of 3012	3220	EXCEL.EXE	regsvr32.exe
PID 3220 wrote to memory of 3012	3220	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\73b4ea14f2eb303eb3d79e89d4450bb49959d802a92d36a543718f6c55e55ad0.xls"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3220

C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\soci1.ocx
2⤵
- Process spawned unexpected child process
PID:2608

C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\soci2.ocx
2⤵
- Process spawned unexpected child process
PID:1580

C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\soci3.ocx
2⤵
- Process spawned unexpected child process
PID:3916

C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\soci4.ocx
2⤵
- Process spawned unexpected child process
PID:3012

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/1580-263-0x0000000000000000-mapping.dmp

Download
memory/2608-262-0x0000000000000000-mapping.dmp

Download
memory/3012-267-0x0000000000000000-mapping.dmp

Download
memory/3220-117-0x00007FF7F6370000-0x00007FF7F6380000-memory.dmp

Filesize
64KB

Download
memory/3220-118-0x00007FF7F6370000-0x00007FF7F6380000-memory.dmp

Filesize
64KB

Download
memory/3220-119-0x00007FF7F6370000-0x00007FF7F6380000-memory.dmp

Filesize
64KB

Download
memory/3220-120-0x00007FF7F6370000-0x00007FF7F6380000-memory.dmp

Filesize
64KB

Download
memory/3220-129-0x00007FF7F3380000-0x00007FF7F3390000-memory.dmp

Filesize
64KB

Download
memory/3220-130-0x00007FF7F3380000-0x00007FF7F3390000-memory.dmp

Filesize
64KB

Download
memory/3916-264-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads