805fd6b7e2544d28b74c00d4233cd26d9b6938f48362e370543579a3786f71ac

Analysis

max time kernel
128s
max time network
152s
platform
windows10-1703_x64
resource
win10-20220812-en
resource tags

arch:x64arch:x86image:win10-20220812-enlocale:en-usos:windows10-1703-x64system
submitted
10/11/2022, 10:57

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General

Target
805fd6b7e2544d28b74c00d4233cd26d9b6938f48362e370543579a3786f71ac.xls
Size 91KB
Sample221110-m2n9qsbbbp
SHA256 805fd6b7e2544d28b74c00d4233cd26d9b6938f48362e370543579a3786f71ac
MD5 00da7d03581277562c90db9d67f6972c
SHA1 de5a619b808afd2aa1f5a89403c9830d70f9da25
SHA512 7a8039007f465ba9b6f83168e88130f9b75f39645f18468a6bca3d834732bca84a439fdd51dc3e8eecdf7f3c313e4e04b1c39691a73ed25dfc902aae7510d607
SSDEEP 1536:eKpb8rGYrMPe3q7Q0XV5xtezEsi8/dgqbCXuZH4gb4CEn9J4ZXz3:eKpb8rGYrMPe3q7Q0XV5xtezEsi8/dgO
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

Malware Config

Extracted

Language

xlm4.0

Source

URLs

xlm40.dropper
https://www.conceptagency.net/css/b8eaKN/
xlm40.dropper
https://bencevendeghaz.hu/2zjoi/cwfKJOzA/
xlm40.dropper
http://45.32.114.141/xilte/Uqm6Eysf3Hkjwh/
xlm40.dropper
http://ruitaiwz.com/wp-admin/MXlp5IsUKwT1k0DtzT/

Signatures

Process spawned unexpected child process 4 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	5004	4420	regsvr32.exe	65
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	3388	4420	regsvr32.exe	65
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	5028	4420	regsvr32.exe	65
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	3572	4420	regsvr32.exe	65

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 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

pid	Process
4420	EXCEL.EXE

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
4420	EXCEL.EXE
4420	EXCEL.EXE

Suspicious use of SetWindowsHookEx 12 IoCs

pid	Process
4420	EXCEL.EXE
4420	EXCEL.EXE
4420	EXCEL.EXE
4420	EXCEL.EXE
4420	EXCEL.EXE
4420	EXCEL.EXE
4420	EXCEL.EXE
4420	EXCEL.EXE
4420	EXCEL.EXE
4420	EXCEL.EXE
4420	EXCEL.EXE
4420	EXCEL.EXE

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 4420 wrote to memory of 5004	4420	EXCEL.EXE	68
PID 4420 wrote to memory of 5004	4420	EXCEL.EXE	68
PID 4420 wrote to memory of 3388	4420	EXCEL.EXE	69
PID 4420 wrote to memory of 3388	4420	EXCEL.EXE	69
PID 4420 wrote to memory of 5028	4420	EXCEL.EXE	70
PID 4420 wrote to memory of 5028	4420	EXCEL.EXE	70
PID 4420 wrote to memory of 3572	4420	EXCEL.EXE	71
PID 4420 wrote to memory of 3572	4420	EXCEL.EXE	71

C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE
"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\805fd6b7e2544d28b74c00d4233cd26d9b6938f48362e370543579a3786f71ac.xls"
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:4420
- C:\Windows\System32\regsvr32.exe
  C:\Windows\System32\regsvr32.exe /S ..\elv1.ooocccxxx
  2⤵
  - Process spawned unexpected child process
  PID:5004
- C:\Windows\System32\regsvr32.exe
  C:\Windows\System32\regsvr32.exe /S ..\elv2.ooocccxxx
  2⤵
  - Process spawned unexpected child process
  PID:3388
- C:\Windows\System32\regsvr32.exe
  C:\Windows\System32\regsvr32.exe /S ..\elv3.ooocccxxx
  2⤵
  - Process spawned unexpected child process
  PID:5028
- C:\Windows\System32\regsvr32.exe
  C:\Windows\System32\regsvr32.exe /S ..\elv4.ooocccxxx
  2⤵
  - Process spawned unexpected child process
  PID:3572

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/4420-118-0x00007FFC75C00000-0x00007FFC75C10000-memory.dmp

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memory/4420-115-0x00007FFC75C00000-0x00007FFC75C10000-memory.dmp

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memory/4420-127-0x00007FFC722E0000-0x00007FFC722F0000-memory.dmp

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memory/4420-128-0x00007FFC722E0000-0x00007FFC722F0000-memory.dmp

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memory/4420-117-0x00007FFC75C00000-0x00007FFC75C10000-memory.dmp

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memory/4420-116-0x00007FFC75C00000-0x00007FFC75C10000-memory.dmp

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memory/4420-309-0x00007FFC75C00000-0x00007FFC75C10000-memory.dmp

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memory/4420-310-0x00007FFC75C00000-0x00007FFC75C10000-memory.dmp

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memory/4420-311-0x00007FFC75C00000-0x00007FFC75C10000-memory.dmp

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memory/4420-312-0x00007FFC75C00000-0x00007FFC75C10000-memory.dmp

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Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads