69975236b79852154af9416f060f269734831aa0c9e940e0553b9aa1d893fc94

General

Target

69975236b79852154af9416f060f269734831aa0c9e940e0553b9aa1d893fc94.xls
Size

217KB
MD5

236a4173ee8f57bd2d2df64e737c15d3
SHA1

ef5f6ba0f3dd9bba04a224f98c8ac24d4a31b346
SHA256

69975236b79852154af9416f060f269734831aa0c9e940e0553b9aa1d893fc94
SHA512

f1635b044a996923a78a0032b45eff49064732ee2c6a481a3de5ed2420fc7f979806484e47858b13bb80c769210a33b1060bf83f176638fc90afe462a7e2f30d
SSDEEP

6144:OKpb8rGYrMPe3q7Q0XV5xtuEsi8/dgByY+TAQXTHGUMEyP5p6f5jQmo:wbGUMVWlbo

Score

10^/10

Malware Config

Extracted

Language

xlm4.0

Source

URLs

xlm40.dropper

http://ftp.agir-santeinternationale.com/doctors/KAacngW97n4ApzVBDdGy/

xlm40.dropper

http://www.vinyz.com/admin3693/BDFFgAZ6zBRumcUSG/

xlm40.dropper

http://ly.yjlianyi.top/wp-admin/NRAdJ/

xlm40.dropper

http://www.muyehuayi.com/cmp/Vtm2m7z88g/

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	4808	3792	regsvr32.exe	65
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	3928	3792	regsvr32.exe	65
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	3964	3792	regsvr32.exe	65
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	3900	3792	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\~MHz	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	EXCEL.EXE
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0	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
3792	EXCEL.EXE

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
3792	EXCEL.EXE
3792	EXCEL.EXE

Suspicious use of SetWindowsHookEx 12 IoCs

pid	Process
3792	EXCEL.EXE
3792	EXCEL.EXE
3792	EXCEL.EXE
3792	EXCEL.EXE
3792	EXCEL.EXE
3792	EXCEL.EXE
3792	EXCEL.EXE
3792	EXCEL.EXE
3792	EXCEL.EXE
3792	EXCEL.EXE
3792	EXCEL.EXE
3792	EXCEL.EXE

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 3792 wrote to memory of 4808	3792	EXCEL.EXE	68
PID 3792 wrote to memory of 4808	3792	EXCEL.EXE	68
PID 3792 wrote to memory of 3928	3792	EXCEL.EXE	69
PID 3792 wrote to memory of 3928	3792	EXCEL.EXE	69
PID 3792 wrote to memory of 3964	3792	EXCEL.EXE	70
PID 3792 wrote to memory of 3964	3792	EXCEL.EXE	70
PID 3792 wrote to memory of 3900	3792	EXCEL.EXE	71
PID 3792 wrote to memory of 3900	3792	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\69975236b79852154af9416f060f269734831aa0c9e940e0553b9aa1d893fc94.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:3792
- C:\Windows\System32\regsvr32.exe
  C:\Windows\System32\regsvr32.exe /S ..\oxnv1.ooccxx
  2⤵
  - Process spawned unexpected child process
  PID:4808
- C:\Windows\System32\regsvr32.exe
  C:\Windows\System32\regsvr32.exe /S ..\oxnv2.ooccxx
  2⤵
  - Process spawned unexpected child process
  PID:3928
- C:\Windows\System32\regsvr32.exe
  C:\Windows\System32\regsvr32.exe /S ..\oxnv3.ooccxx
  2⤵
  - Process spawned unexpected child process
  PID:3964
- C:\Windows\System32\regsvr32.exe
  C:\Windows\System32\regsvr32.exe /S ..\oxnv4.ooccxx
  2⤵
  - Process spawned unexpected child process
  PID:3900

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/3792-289-0x00007FFB791A0000-0x00007FFB791B0000-memory.dmp

Filesize
64KB

Download
memory/3792-116-0x00007FFB791A0000-0x00007FFB791B0000-memory.dmp

Filesize
64KB

Download
memory/3792-117-0x00007FFB791A0000-0x00007FFB791B0000-memory.dmp

Filesize
64KB

Download
memory/3792-118-0x00007FFB791A0000-0x00007FFB791B0000-memory.dmp

Filesize
64KB

Download
memory/3792-127-0x00007FFB75F10000-0x00007FFB75F20000-memory.dmp

Filesize
64KB

Download
memory/3792-128-0x00007FFB75F10000-0x00007FFB75F20000-memory.dmp

Filesize
64KB

Download
memory/3792-292-0x00007FFB791A0000-0x00007FFB791B0000-memory.dmp

Filesize
64KB

Download
memory/3792-291-0x00007FFB791A0000-0x00007FFB791B0000-memory.dmp

Filesize
64KB

Download
memory/3792-290-0x00007FFB791A0000-0x00007FFB791B0000-memory.dmp

Filesize
64KB

Download
memory/3792-115-0x00007FFB791A0000-0x00007FFB791B0000-memory.dmp

Filesize
64KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads