9d7a6fdc5d61df4439063e989c4dd22274da9ef8ba7ff40521060aa4551b60ae

General

Target
T-1056970545.xlsb
Size 1.1MB
Sample220414-pyf53acbf8
SHA256 9d7a6fdc5d61df4439063e989c4dd22274da9ef8ba7ff40521060aa4551b60ae
MD5 c7cbc0b12da20920021da4b1adad33ea
SHA1 44200e838c508b9e2faab8d84efdee8551dc1c9f
SHA512 5ad17eed377d60b42b8a147e7ef3f712c511be6030f0e5ef3063f359cc11b0bdada353bbc8fd658c59ccd834b536baf5404a76d5d4370e2ff3b803d23e64fdcd
MD5 SHA1 SHA512

Score

10^/10

Malware Config

Extracted

Language

xlm4.0

Source

URLs

xlm40.dropper
http://rommify.net/Mm2cPksfn0/Dmnh.png
xlm40.dropper
http://c-logistica.com/qS4NKRYI/Dmnh.png
xlm40.dropper
http://mhdti.com/e03BksINQKc/Dmnh.png

Signatures

Process spawned unexpected child process 3 IoCs

This typically indicates the parent process was compromised via an exploit or macro.

description	pid	pid_target	Process	procid_target
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	1928	1456	regsvr32.exe	81
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	3424	1456	regsvr32.exe	81
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	2804	1456	regsvr32.exe	81

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

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

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU	EXCEL.EXE
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\BIOS	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily	EXCEL.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
1456	EXCEL.EXE

Suspicious use of SetWindowsHookEx 17 IoCs

pid	Process
1456	EXCEL.EXE
1456	EXCEL.EXE
1456	EXCEL.EXE
1456	EXCEL.EXE
1456	EXCEL.EXE
1456	EXCEL.EXE
1456	EXCEL.EXE
1456	EXCEL.EXE
1456	EXCEL.EXE
1456	EXCEL.EXE
1456	EXCEL.EXE
1456	EXCEL.EXE
1456	EXCEL.EXE
1456	EXCEL.EXE
1456	EXCEL.EXE
1456	EXCEL.EXE
1456	EXCEL.EXE

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 1456 wrote to memory of 1928	1456	EXCEL.EXE	87
PID 1456 wrote to memory of 1928	1456	EXCEL.EXE	87
PID 1456 wrote to memory of 3424	1456	EXCEL.EXE	88
PID 1456 wrote to memory of 3424	1456	EXCEL.EXE	88
PID 1456 wrote to memory of 2804	1456	EXCEL.EXE	89
PID 1456 wrote to memory of 2804	1456	EXCEL.EXE	89

C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE
"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\T-1056970545.xlsb"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1456
- C:\Windows\SYSTEM32\regsvr32.exe
  regsvr32 C:\ProgramData\Befath.dll
  2⤵
  - Process spawned unexpected child process
  PID:1928
- C:\Windows\SYSTEM32\regsvr32.exe
  regsvr32 C:\ProgramData\Befath1.dll
  2⤵
  - Process spawned unexpected child process
  PID:3424
- C:\Windows\SYSTEM32\regsvr32.exe
  regsvr32 C:\ProgramData\Befath2.dll
  2⤵
  - Process spawned unexpected child process
  PID:2804

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

2

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

memory/1456-124-0x00007FF87ECB0000-0x00007FF87ECC0000-memory.dmp

Download

memory/1456-125-0x00007FF87ECB0000-0x00007FF87ECC0000-memory.dmp

Download

memory/1456-126-0x00007FF87ECB0000-0x00007FF87ECC0000-memory.dmp

Download

memory/1456-127-0x00007FF87ECB0000-0x00007FF87ECC0000-memory.dmp

Download

memory/1456-128-0x00007FF87ECB0000-0x00007FF87ECC0000-memory.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads