b2480abff5fda2eda1eaada24faf4c730bfc02fe2dc5054f79fb095db9a42386

Analysis

max time kernel
144s
max time network
145s
platform
windows10-1703_x64
resource
win10-20220901-en
resource tags

arch:x64arch:x86image:win10-20220901-enlocale:en-usos:windows10-1703-x64system
submitted
10/11/2022, 21:33

Sharing

Copy URL Twitter E-mail

Report Analysis Logs

General

Target
b2480abff5fda2eda1eaada24faf4c730bfc02fe2dc5054f79fb095db9a42386.xls
Size 91KB
Sample221110-1ecjbaecd4
SHA256 b2480abff5fda2eda1eaada24faf4c730bfc02fe2dc5054f79fb095db9a42386
MD5 cce4671003adc0973d3bc6295022561b
SHA1 9e152bf18ee2d36642096dc44bd5418d40256d4c
SHA512 1911a2263bde329d689f1096d87a7935cbe50600250bf00b80baf48fcb1db7754066ad213ff801f346f5e85ccb1b8c6594dd86d391bae1737b57f279b94254ca
SSDEEP 1536:eKpb8rGYrMPe3q7Q0XV5xtezEsi8/dg4bCXuZH4gb4CEn9J4ZvrX:eKpb8rGYrMPe3q7Q0XV5xtezEsi8/dgQ
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

Malware Config

Extracted

Language

xlm4.0

Source

URLs

xlm40.dropper
http://www.vinyz.com/cache/rqWV/
xlm40.dropper
http://yuanliao.raluking.com/1eq5o7/gHrTM8YilZz0quKt/
xlm40.dropper
https://akarweb.net/cgi-bin/CL13tGXI/
xlm40.dropper
http://www.bdbg.es/css/DDm7o71vWtTs/

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	4028	4680	regsvr32.exe	65
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	4056	4680	regsvr32.exe	65
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	4052	4680	regsvr32.exe	65
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	1944	4680	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
4680	EXCEL.EXE

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
4680	EXCEL.EXE
4680	EXCEL.EXE

Suspicious use of SetWindowsHookEx 12 IoCs

pid	Process
4680	EXCEL.EXE
4680	EXCEL.EXE
4680	EXCEL.EXE
4680	EXCEL.EXE
4680	EXCEL.EXE
4680	EXCEL.EXE
4680	EXCEL.EXE
4680	EXCEL.EXE
4680	EXCEL.EXE
4680	EXCEL.EXE
4680	EXCEL.EXE
4680	EXCEL.EXE

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 4680 wrote to memory of 4028	4680	EXCEL.EXE	68
PID 4680 wrote to memory of 4028	4680	EXCEL.EXE	68
PID 4680 wrote to memory of 4056	4680	EXCEL.EXE	69
PID 4680 wrote to memory of 4056	4680	EXCEL.EXE	69
PID 4680 wrote to memory of 4052	4680	EXCEL.EXE	70
PID 4680 wrote to memory of 4052	4680	EXCEL.EXE	70
PID 4680 wrote to memory of 1944	4680	EXCEL.EXE	71
PID 4680 wrote to memory of 1944	4680	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\b2480abff5fda2eda1eaada24faf4c730bfc02fe2dc5054f79fb095db9a42386.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:4680
- C:\Windows\System32\regsvr32.exe
  C:\Windows\System32\regsvr32.exe /S ..\elv1.ooocccxxx
  2⤵
  - Process spawned unexpected child process
  PID:4028
- C:\Windows\System32\regsvr32.exe
  C:\Windows\System32\regsvr32.exe /S ..\elv2.ooocccxxx
  2⤵
  - Process spawned unexpected child process
  PID:4056
- C:\Windows\System32\regsvr32.exe
  C:\Windows\System32\regsvr32.exe /S ..\elv3.ooocccxxx
  2⤵
  - Process spawned unexpected child process
  PID:4052
- C:\Windows\System32\regsvr32.exe
  C:\Windows\System32\regsvr32.exe /S ..\elv4.ooocccxxx
  2⤵
  - Process spawned unexpected child process
  PID:1944

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

Replay Monitor

Loading Replay Monitor...

Downloads

memory/4680-120-0x00007FFCD2610000-0x00007FFCD2620000-memory.dmp

Download

memory/4680-121-0x00007FFCD2610000-0x00007FFCD2620000-memory.dmp

Download

memory/4680-122-0x00007FFCD2610000-0x00007FFCD2620000-memory.dmp

Download

memory/4680-123-0x00007FFCD2610000-0x00007FFCD2620000-memory.dmp

Download

memory/4680-132-0x00007FFCCF370000-0x00007FFCCF380000-memory.dmp

Download

memory/4680-133-0x00007FFCCF370000-0x00007FFCCF380000-memory.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads