19940a1e1820b4aa1e0bc8ae018bd31dc2d870fd9970ffbb3a25a25676c60936

General

Target

19940a1e1820b4aa1e0bc8ae018bd31dc2d870fd9970ffbb3a25a25676c60936.xlsm
Size

37KB
MD5

281e4ecf6aa3fcbdad4755bbcdee69cd
SHA1

2f8ccfc79cb4ab0a40c3ba0a05419942626438c3
SHA256

19940a1e1820b4aa1e0bc8ae018bd31dc2d870fd9970ffbb3a25a25676c60936
SHA512

e8daf059c8cac6fdd694f333ee29a4c82bcb444af482a4ea7af9a27895b28cde9ddf721ba3b87d8575c6fffd0da6189fc3587485dc8adeac63eaa383c0d6e5dd
SSDEEP

768:0b/Mvd5dhTJxmxE7l0VGpevZCw4VmUxjfC30+kS4QyoX0VyY5G:0bmd5zmxE7W0XYk4pEVyV

Score

10^/10

discovery

Malware Config

Extracted

Language

xlm4.0

Source

URLs

xlm40.dropper

https://ordereasy.hk/error/8BZswf/

xlm40.dropper

https://duocphamct.com/wp-content/JYT0KrYcoJrAj/

Signatures

Process spawned unexpected child process 1 IoCs

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

Processes:

rundll32.exe

description	pid	pid_target	Process	procid_target
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	4048	4060	rundll32.exe	81

System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

Processes:

rundll32.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rundll32.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
4060	EXCEL.EXE

Suspicious use of FindShellTrayWindow 2 IoCs

Processes:

EXCEL.EXE

pid	Process
4060	EXCEL.EXE
4060	EXCEL.EXE

Suspicious use of SetWindowsHookEx 14 IoCs

Processes:

EXCEL.EXE

pid	Process
4060	EXCEL.EXE
4060	EXCEL.EXE
4060	EXCEL.EXE
4060	EXCEL.EXE
4060	EXCEL.EXE
4060	EXCEL.EXE
4060	EXCEL.EXE
4060	EXCEL.EXE
4060	EXCEL.EXE
4060	EXCEL.EXE
4060	EXCEL.EXE
4060	EXCEL.EXE
4060	EXCEL.EXE
4060	EXCEL.EXE

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

EXCEL.EXE

description	pid	Process	procid_target
PID 4060 wrote to memory of 4048	4060	EXCEL.EXE	86
PID 4060 wrote to memory of 4048	4060	EXCEL.EXE	86
PID 4060 wrote to memory of 4048	4060	EXCEL.EXE	86

C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE
"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\19940a1e1820b4aa1e0bc8ae018bd31dc2d870fd9970ffbb3a25a25676c60936.xlsm"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4060
- C:\Windows\SysWOW64\rundll32.exe
  C:\Windows\SysWOW64\rundll32.exe ..\bestb.ocx,D"&"l"&"l"&"R"&"eg"&"i"&"s"&"t"&"erServer
  2⤵
  - Process spawned unexpected child process
  - System Location Discovery: System Language Discovery
  PID:4048

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

2

T1012

System Information Discovery

2

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\b8ab77100df80ab2.customDestinations-ms

Filesize
1KB

MD5
4dd943fe784a650108c7d6670a2797d8

SHA1
0f4f3a65be9b188f87cb5f460bf923f60118579e

SHA256
d2449a97a3eacd2bf27b8a058e4902fa9cdef8603d6086ac4e98c0b157eefe6f

SHA512
e4fc281213382083f6b5c67c63420a7b83912c245febde5e1e6ba9a9ab1bcc366efd5f1423d456c11a1aed68e13b24c390e7551664ffac0a3e544b769da1730f

Download Submit
C:\Users\Admin\bestb.ocx

Filesize
4KB

MD5
1a4fc9a4ad938a6cefb5bf1e5973d969

SHA1
510bc731962479bdacbfc3ef98e34c4e4e8510a6

SHA256
9448b78e8b7cbbdacea7a67be1eb85759762a3be01ed4d1538408d4c09dd410d

SHA512
1585fb95c1c3375a0ba447df0172984d14ab2566be1c64cd3a877328bf34c4f4ced9885c4b97099d5ece96d8807f3c1e10ade70e6165165fac0551ecca584f6e

Download Submit
memory/4060-11-0x00007FFBE0220000-0x00007FFBE0230000-memory.dmp

Filesize
64KB

Download
memory/4060-6-0x00007FFC22490000-0x00007FFC22685000-memory.dmp

Filesize
2.0MB

Download
memory/4060-4-0x00007FFBE2510000-0x00007FFBE2520000-memory.dmp

Filesize
64KB

Download
memory/4060-2-0x00007FFBE2510000-0x00007FFBE2520000-memory.dmp

Filesize
64KB

Download
memory/4060-10-0x00007FFC22490000-0x00007FFC22685000-memory.dmp

Filesize
2.0MB

Download
memory/4060-9-0x00007FFC22490000-0x00007FFC22685000-memory.dmp

Filesize
2.0MB

Download
memory/4060-8-0x00007FFC22490000-0x00007FFC22685000-memory.dmp

Filesize
2.0MB

Download
memory/4060-7-0x00007FFC22490000-0x00007FFC22685000-memory.dmp

Filesize
2.0MB

Download
memory/4060-0-0x00007FFBE2510000-0x00007FFBE2520000-memory.dmp

Filesize
64KB

Download
memory/4060-5-0x00007FFBE2510000-0x00007FFBE2520000-memory.dmp

Filesize
64KB

Download
memory/4060-12-0x00007FFBE0220000-0x00007FFBE0230000-memory.dmp

Filesize
64KB

Download
memory/4060-14-0x00007FFC22490000-0x00007FFC22685000-memory.dmp

Filesize
2.0MB

Download
memory/4060-16-0x00007FFC22490000-0x00007FFC22685000-memory.dmp

Filesize
2.0MB

Download
memory/4060-15-0x00007FFC22490000-0x00007FFC22685000-memory.dmp

Filesize
2.0MB

Download
memory/4060-13-0x00007FFC22490000-0x00007FFC22685000-memory.dmp

Filesize
2.0MB

Download
memory/4060-3-0x00007FFC2252D000-0x00007FFC2252E000-memory.dmp

Filesize
4KB

Download
memory/4060-43-0x00007FFC22490000-0x00007FFC22685000-memory.dmp

Filesize
2.0MB

Download
memory/4060-1-0x00007FFBE2510000-0x00007FFBE2520000-memory.dmp

Filesize
64KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads