bcec278177d2a0f3cd2a3cf1e2560eeaf73ec7aae8844f4a4b65e03b3697351d

General

Target

bcec278177d2a0f3cd2a3cf1e2560eeaf73ec7aae8844f4a4b65e03b3697351d.xls
Size

217KB
MD5

76d65f43f67af329d407df02390d1f75
SHA1

ea5e92d7bd5c6d0be6c2d5ec272ecc4384ebc8cb
SHA256

bcec278177d2a0f3cd2a3cf1e2560eeaf73ec7aae8844f4a4b65e03b3697351d
SHA512

24c214796e2468fe94efff876833ad7835008e8da4c35f6912f79fc76d7c045f9eb55a8c3850dcc7bb27fe2c85c9afacf2399065ae4a36d509c6cd74a64d44de
SSDEEP

6144:zKpb8rGYrMPe3q7Q0XV5xtuEsi8/dglyY+TAQXTHGUMEyP5p6f5jQm7ZnT:1bGUMVWlbJ

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	2608	3268	regsvr32.exe	65
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	2700	3268	regsvr32.exe	65
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	4780	3268	regsvr32.exe	65
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	2132	3268	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 value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU	EXCEL.EXE
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\BIOS	EXCEL.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
3268	EXCEL.EXE

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
3268	EXCEL.EXE
3268	EXCEL.EXE

Suspicious use of SetWindowsHookEx 12 IoCs

pid	Process
3268	EXCEL.EXE
3268	EXCEL.EXE
3268	EXCEL.EXE
3268	EXCEL.EXE
3268	EXCEL.EXE
3268	EXCEL.EXE
3268	EXCEL.EXE
3268	EXCEL.EXE
3268	EXCEL.EXE
3268	EXCEL.EXE
3268	EXCEL.EXE
3268	EXCEL.EXE

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 3268 wrote to memory of 2608	3268	EXCEL.EXE	68
PID 3268 wrote to memory of 2608	3268	EXCEL.EXE	68
PID 3268 wrote to memory of 2700	3268	EXCEL.EXE	69
PID 3268 wrote to memory of 2700	3268	EXCEL.EXE	69
PID 3268 wrote to memory of 4780	3268	EXCEL.EXE	70
PID 3268 wrote to memory of 4780	3268	EXCEL.EXE	70
PID 3268 wrote to memory of 2132	3268	EXCEL.EXE	71
PID 3268 wrote to memory of 2132	3268	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\bcec278177d2a0f3cd2a3cf1e2560eeaf73ec7aae8844f4a4b65e03b3697351d.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:3268
- C:\Windows\System32\regsvr32.exe
  C:\Windows\System32\regsvr32.exe /S ..\oxnv1.ooccxx
  2⤵
  - Process spawned unexpected child process
  PID:2608
- C:\Windows\System32\regsvr32.exe
  C:\Windows\System32\regsvr32.exe /S ..\oxnv2.ooccxx
  2⤵
  - Process spawned unexpected child process
  PID:2700
- C:\Windows\System32\regsvr32.exe
  C:\Windows\System32\regsvr32.exe /S ..\oxnv3.ooccxx
  2⤵
  - Process spawned unexpected child process
  PID:4780
- C:\Windows\System32\regsvr32.exe
  C:\Windows\System32\regsvr32.exe /S ..\oxnv4.ooccxx
  2⤵
  - Process spawned unexpected child process
  PID:2132

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

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Downloads

memory/3268-119-0x00007FFA815E0000-0x00007FFA815F0000-memory.dmp

Filesize
64KB

Download
memory/3268-120-0x00007FFA815E0000-0x00007FFA815F0000-memory.dmp

Filesize
64KB

Download
memory/3268-129-0x00007FFA7DFF0000-0x00007FFA7E000000-memory.dmp

Filesize
64KB

Download
memory/3268-130-0x00007FFA7DFF0000-0x00007FFA7E000000-memory.dmp

Filesize
64KB

Download
memory/3268-117-0x00007FFA815E0000-0x00007FFA815F0000-memory.dmp

Filesize
64KB

Download
memory/3268-118-0x00007FFA815E0000-0x00007FFA815F0000-memory.dmp

Filesize
64KB

Download
memory/3268-293-0x00007FFA815E0000-0x00007FFA815F0000-memory.dmp

Filesize
64KB

Download
memory/3268-294-0x00007FFA815E0000-0x00007FFA815F0000-memory.dmp

Filesize
64KB

Download
memory/3268-295-0x00007FFA815E0000-0x00007FFA815F0000-memory.dmp

Filesize
64KB

Download
memory/3268-296-0x00007FFA815E0000-0x00007FFA815F0000-memory.dmp

Filesize
64KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads