abf849db27717b33136b395d606e2a64327256902b4b6599a53e23491340a5e1

Analysis

max time kernel
145s
max time network
146s
platform
windows10-1703_x64
resource
win10-20220901-en
resource tags

arch:x64arch:x86image:win10-20220901-enlocale:en-usos:windows10-1703-x64system
submitted
03/11/2022, 21:58

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General

Target

abf849db27717b33136b395d606e2a64327256902b4b6599a53e23491340a5e1.xls
Size

217KB
MD5

b05440abf041a04211cff4550b173b06
SHA1

d4b8e547eed412f2933ef7dd8954a54c352f4e36
SHA256

abf849db27717b33136b395d606e2a64327256902b4b6599a53e23491340a5e1
SHA512

ff4ea8b0a8d919c64489d66ea0a80783967e250bf24f5ffdcc2fd3d44c9706fffeaef4ef6c57497b34fb079675347eb55c8878a3d6305417650d4ce655f475ca
SSDEEP

6144:zKpb8rGYrMPe3q7Q0XV5xtuEsi8/dglyY+TAQXTHGUMEyP5p6f5jQm7lnT:1bGUMVWlbN

Score

10^/10

Malware Config

Extracted

Language

xlm4.0

Source

URLs

xlm40.dropper

http://app.clubdedocentes.com/storage/DCcq9ekgH99sI/

xlm40.dropper

http://linhkiendoc.com/app/payments/qoy5JqpLqrbsKl/

xlm40.dropper

http://sourcecool.com/throng/iOD/

xlm40.dropper

http://www.stickers-et-deco.com/Adapter/lYw/

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	3724	2120	regsvr32.exe	65
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	2772	2120	regsvr32.exe	65
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	5052	2120	regsvr32.exe	65
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	3348	2120	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 value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	EXCEL.EXE
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	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
2120	EXCEL.EXE

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
2120	EXCEL.EXE
2120	EXCEL.EXE

Suspicious use of SetWindowsHookEx 12 IoCs

pid	Process
2120	EXCEL.EXE
2120	EXCEL.EXE
2120	EXCEL.EXE
2120	EXCEL.EXE
2120	EXCEL.EXE
2120	EXCEL.EXE
2120	EXCEL.EXE
2120	EXCEL.EXE
2120	EXCEL.EXE
2120	EXCEL.EXE
2120	EXCEL.EXE
2120	EXCEL.EXE

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2120 wrote to memory of 3724	2120	EXCEL.EXE	68
PID 2120 wrote to memory of 3724	2120	EXCEL.EXE	68
PID 2120 wrote to memory of 2772	2120	EXCEL.EXE	69
PID 2120 wrote to memory of 2772	2120	EXCEL.EXE	69
PID 2120 wrote to memory of 5052	2120	EXCEL.EXE	70
PID 2120 wrote to memory of 5052	2120	EXCEL.EXE	70
PID 2120 wrote to memory of 3348	2120	EXCEL.EXE	71
PID 2120 wrote to memory of 3348	2120	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\abf849db27717b33136b395d606e2a64327256902b4b6599a53e23491340a5e1.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:2120
- C:\Windows\System32\regsvr32.exe
  C:\Windows\System32\regsvr32.exe /S ..\oxnv1.ooccxx
  2⤵
  - Process spawned unexpected child process
  PID:3724
- C:\Windows\System32\regsvr32.exe
  C:\Windows\System32\regsvr32.exe /S ..\oxnv2.ooccxx
  2⤵
  - Process spawned unexpected child process
  PID:2772
- C:\Windows\System32\regsvr32.exe
  C:\Windows\System32\regsvr32.exe /S ..\oxnv3.ooccxx
  2⤵
  - Process spawned unexpected child process
  PID:5052
- C:\Windows\System32\regsvr32.exe
  C:\Windows\System32\regsvr32.exe /S ..\oxnv4.ooccxx
  2⤵
  - Process spawned unexpected child process
  PID:3348

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/2120-120-0x00007FF8BE980000-0x00007FF8BE990000-memory.dmp

Filesize
64KB

Download
memory/2120-121-0x00007FF8BE980000-0x00007FF8BE990000-memory.dmp

Filesize
64KB

Download
memory/2120-123-0x00007FF8BE980000-0x00007FF8BE990000-memory.dmp

Filesize
64KB

Download
memory/2120-122-0x00007FF8BE980000-0x00007FF8BE990000-memory.dmp

Filesize
64KB

Download
memory/2120-132-0x00007FF8BB350000-0x00007FF8BB360000-memory.dmp

Filesize
64KB

Download
memory/2120-133-0x00007FF8BB350000-0x00007FF8BB360000-memory.dmp

Filesize
64KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads