757aeb42ac3b42320cdd71e32e2152e1a81b5524e08dce201c3142574752234b

General

Target

757aeb42ac3b42320cdd71e32e2152e1a81b5524e08dce201c3142574752234b.xls
Size

95KB
MD5

cc1c8a12814e08349f75128c72ebb1f5
SHA1

1877bea484ae3c098dbf7e5329fda4642f0966ed
SHA256

757aeb42ac3b42320cdd71e32e2152e1a81b5524e08dce201c3142574752234b
SHA512

cb84205926ac35c4a135d33e9cfe887c29e7820cd4cf81c9aba0cae41fef79dbe93d0195b62f1e2128046faa1bbd9d6de17dd2c56613fd7a9da99413e39b9522

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	412	3044	regsvr32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	512	3044	regsvr32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	3188	3044	regsvr32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	1136	3044	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

3044 EXCEL.EXE

Suspicious use of SetWindowsHookEx 12 IoCs

Processes:

EXCEL.EXE

pid	process
3044	EXCEL.EXE
3044	EXCEL.EXE
3044	EXCEL.EXE
3044	EXCEL.EXE
3044	EXCEL.EXE
3044	EXCEL.EXE
3044	EXCEL.EXE
3044	EXCEL.EXE
3044	EXCEL.EXE
3044	EXCEL.EXE
3044	EXCEL.EXE
3044	EXCEL.EXE

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

EXCEL.EXE

description	pid	process	target process
PID 3044 wrote to memory of 412	3044	EXCEL.EXE	regsvr32.exe
PID 3044 wrote to memory of 412	3044	EXCEL.EXE	regsvr32.exe
PID 3044 wrote to memory of 512	3044	EXCEL.EXE	regsvr32.exe
PID 3044 wrote to memory of 512	3044	EXCEL.EXE	regsvr32.exe
PID 3044 wrote to memory of 3188	3044	EXCEL.EXE	regsvr32.exe
PID 3044 wrote to memory of 3188	3044	EXCEL.EXE	regsvr32.exe
PID 3044 wrote to memory of 1136	3044	EXCEL.EXE	regsvr32.exe
PID 3044 wrote to memory of 1136	3044	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\757aeb42ac3b42320cdd71e32e2152e1a81b5524e08dce201c3142574752234b.xls"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3044

C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\soci1.ocx
2⤵
- Process spawned unexpected child process
PID:412

C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\soci2.ocx
2⤵
- Process spawned unexpected child process
PID:512

C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\soci3.ocx
2⤵
- Process spawned unexpected child process
PID:3188

C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\soci4.ocx
2⤵
- Process spawned unexpected child process
PID:1136

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/412-256-0x0000000000000000-mapping.dmp

Download
memory/512-257-0x0000000000000000-mapping.dmp

Download
memory/1136-265-0x0000000000000000-mapping.dmp

Download
memory/3044-114-0x00007FFDA13C0000-0x00007FFDA13D0000-memory.dmp

Filesize
64KB

Download
memory/3044-115-0x00007FFDA13C0000-0x00007FFDA13D0000-memory.dmp

Filesize
64KB

Download
memory/3044-116-0x00007FFDA13C0000-0x00007FFDA13D0000-memory.dmp

Filesize
64KB

Download
memory/3044-117-0x00007FFDA13C0000-0x00007FFDA13D0000-memory.dmp

Filesize
64KB

Download
memory/3044-126-0x00007FFD9D8C0000-0x00007FFD9D8D0000-memory.dmp

Filesize
64KB

Download
memory/3044-127-0x00007FFD9D8C0000-0x00007FFD9D8D0000-memory.dmp

Filesize
64KB

Download
memory/3188-258-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads