99ea6b765b7ca5970a5cf6471d1dfef19adb812d842671205e32a0fbdf5a3663

General

Target

99ea6b765b7ca5970a5cf6471d1dfef19adb812d842671205e32a0fbdf5a3663.xls
Size

95KB
MD5

2771e2a59483a18380fd0eb904dc20b2
SHA1

f20db1277f6aaaa2d0485e71a3529da00efda2d3
SHA256

99ea6b765b7ca5970a5cf6471d1dfef19adb812d842671205e32a0fbdf5a3663
SHA512

300f40f3c5e9bbc462a3833d61999c0c5748112a7c34b1cfd53193d82e50a813e9a074a20ba38c95731160df972ccc3e9f0390d531972148cf9fd88f959bcf42

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	1248	3784	regsvr32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	3872	3784	regsvr32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	472	3784	regsvr32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	3664	3784	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\~MHz	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	EXCEL.EXE
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0	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

3784 EXCEL.EXE

Suspicious use of SetWindowsHookEx 12 IoCs

Processes:

EXCEL.EXE

pid	process
3784	EXCEL.EXE
3784	EXCEL.EXE
3784	EXCEL.EXE
3784	EXCEL.EXE
3784	EXCEL.EXE
3784	EXCEL.EXE
3784	EXCEL.EXE
3784	EXCEL.EXE
3784	EXCEL.EXE
3784	EXCEL.EXE
3784	EXCEL.EXE
3784	EXCEL.EXE

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

EXCEL.EXE

description	pid	process	target process
PID 3784 wrote to memory of 1248	3784	EXCEL.EXE	regsvr32.exe
PID 3784 wrote to memory of 1248	3784	EXCEL.EXE	regsvr32.exe
PID 3784 wrote to memory of 3872	3784	EXCEL.EXE	regsvr32.exe
PID 3784 wrote to memory of 3872	3784	EXCEL.EXE	regsvr32.exe
PID 3784 wrote to memory of 472	3784	EXCEL.EXE	regsvr32.exe
PID 3784 wrote to memory of 472	3784	EXCEL.EXE	regsvr32.exe
PID 3784 wrote to memory of 3664	3784	EXCEL.EXE	regsvr32.exe
PID 3784 wrote to memory of 3664	3784	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\99ea6b765b7ca5970a5cf6471d1dfef19adb812d842671205e32a0fbdf5a3663.xls"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3784

C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\soci1.ocx
2⤵
- Process spawned unexpected child process
PID:1248

C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\soci2.ocx
2⤵
- Process spawned unexpected child process
PID:3872

C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\soci3.ocx
2⤵
- Process spawned unexpected child process
PID:472

C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\soci4.ocx
2⤵
- Process spawned unexpected child process
PID:3664

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

Replay Monitor

Loading Replay Monitor...

Downloads

memory/472-276-0x0000000000000000-mapping.dmp

Download
memory/1248-274-0x0000000000000000-mapping.dmp

Download
memory/3664-281-0x0000000000000000-mapping.dmp

Download
memory/3784-118-0x00007FFDC9060000-0x00007FFDC9070000-memory.dmp

Filesize
64KB

Download
memory/3784-119-0x00007FFDC9060000-0x00007FFDC9070000-memory.dmp

Filesize
64KB

Download
memory/3784-120-0x00007FFDC9060000-0x00007FFDC9070000-memory.dmp

Filesize
64KB

Download
memory/3784-121-0x00007FFDC9060000-0x00007FFDC9070000-memory.dmp

Filesize
64KB

Download
memory/3784-130-0x00007FFDC5600000-0x00007FFDC5610000-memory.dmp

Filesize
64KB

Download
memory/3784-131-0x00007FFDC5600000-0x00007FFDC5610000-memory.dmp

Filesize
64KB

Download
memory/3872-275-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

Replay Monitor

Loading Replay Monitor...

Downloads