24cff46b3f8ca1ece34b0821c6e406ada62b4c739a937674ec4699d4fe751c76

General

Target

24cff46b3f8ca1ece34b0821c6e406ada62b4c739a937674ec4699d4fe751c76.xls
Size

77KB
MD5

2b04cbe50b4f3fa5e47f777888a45d1b
SHA1

58b2a8464b8f76eae893778334757f2fd3439395
SHA256

24cff46b3f8ca1ece34b0821c6e406ada62b4c739a937674ec4699d4fe751c76
SHA512

6e187417a39ce12e08a78b25dc977d1df7a28732057136521150c3b1e394a1a42483868b7e3e7c00792dbaa8f2c767720adf50f3aab5116484d85a378cf8a9b4
SSDEEP

1536:ASKpb8rGYrMPe3q7Q0XV5xtezEsi8/dgew+hD8nTLqQrRrZws8Eau:LKpb8rGYrMPe3q7Q0XV5xtezEsi8/dg5

Score

10^/10

Malware Config

Extracted

Language

xlm4.0

Source

URLs

xlm40.dropper

http://natdemo.natrixsoftware.com/wp-admin/QyqiN/

xlm40.dropper

http://luisangeja.com/COPYRIGHT/BJljffG6/

xlm40.dropper

http://nerz.net/stats/KVIyooM/

Signatures

Process spawned unexpected child process 3 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	3900	1788	regsvr32.exe	80
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	3676	1788	regsvr32.exe	80
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	940	1788	regsvr32.exe	80

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
1788	EXCEL.EXE

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
1788	EXCEL.EXE
1788	EXCEL.EXE

Suspicious use of SetWindowsHookEx 14 IoCs

pid	Process
1788	EXCEL.EXE
1788	EXCEL.EXE
1788	EXCEL.EXE
1788	EXCEL.EXE
1788	EXCEL.EXE
1788	EXCEL.EXE
1788	EXCEL.EXE
1788	EXCEL.EXE
1788	EXCEL.EXE
1788	EXCEL.EXE
1788	EXCEL.EXE
1788	EXCEL.EXE
1788	EXCEL.EXE
1788	EXCEL.EXE

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 1788 wrote to memory of 3900	1788	EXCEL.EXE	85
PID 1788 wrote to memory of 3900	1788	EXCEL.EXE	85
PID 1788 wrote to memory of 3676	1788	EXCEL.EXE	86
PID 1788 wrote to memory of 3676	1788	EXCEL.EXE	86
PID 1788 wrote to memory of 940	1788	EXCEL.EXE	87
PID 1788 wrote to memory of 940	1788	EXCEL.EXE	87

C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE
"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\24cff46b3f8ca1ece34b0821c6e406ada62b4c739a937674ec4699d4fe751c76.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:1788
- C:\Windows\SYSTEM32\regsvr32.exe
  regsvr32 C:\Uduw\soam1.OCX
  2⤵
  - Process spawned unexpected child process
  PID:3900
- C:\Windows\SYSTEM32\regsvr32.exe
  regsvr32 C:\Uduw\soam2.OCX
  2⤵
  - Process spawned unexpected child process
  PID:3676
- C:\Windows\SYSTEM32\regsvr32.exe
  regsvr32 C:\Uduw\soam3.OCX
  2⤵
  - Process spawned unexpected child process
  PID:940

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

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

C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\b8ab77100df80ab2.customDestinations-ms

Filesize
2KB

MD5
508fefc181957886362b3f6bba2e432a

SHA1
7ac8265dca5eefcac50034d4685225fbc680e54a

SHA256
e606e3a983ab88cfe589cbb41ca04f211664d477cb3f56a1b6a14ea93599e5e4

SHA512
6dc3bfc4d89f0196e9a22c5e7c4b1c4273607e38240d474dc2e4c673d4f2f38622edc9f2daa7bd99e87a483be5d30edeef7e16c92c1a8268408c4d43efb75b24

Download Submit
memory/1788-12-0x00007FFC94C30000-0x00007FFC94E25000-memory.dmp

Filesize
2.0MB

Download
memory/1788-9-0x00007FFC94C30000-0x00007FFC94E25000-memory.dmp

Filesize
2.0MB

Download
memory/1788-5-0x00007FFC54CB0000-0x00007FFC54CC0000-memory.dmp

Filesize
64KB

Download
memory/1788-3-0x00007FFC94CCD000-0x00007FFC94CCE000-memory.dmp

Filesize
4KB

Download
memory/1788-1-0x00007FFC54CB0000-0x00007FFC54CC0000-memory.dmp

Filesize
64KB

Download
memory/1788-6-0x00007FFC94C30000-0x00007FFC94E25000-memory.dmp

Filesize
2.0MB

Download
memory/1788-8-0x00007FFC94C30000-0x00007FFC94E25000-memory.dmp

Filesize
2.0MB

Download
memory/1788-16-0x00007FFC94C30000-0x00007FFC94E25000-memory.dmp

Filesize
2.0MB

Download
memory/1788-0-0x00007FFC54CB0000-0x00007FFC54CC0000-memory.dmp

Filesize
64KB

Download
memory/1788-11-0x00007FFC94C30000-0x00007FFC94E25000-memory.dmp

Filesize
2.0MB

Download
memory/1788-4-0x00007FFC54CB0000-0x00007FFC54CC0000-memory.dmp

Filesize
64KB

Download
memory/1788-10-0x00007FFC52B50000-0x00007FFC52B60000-memory.dmp

Filesize
64KB

Download
memory/1788-7-0x00007FFC94C30000-0x00007FFC94E25000-memory.dmp

Filesize
2.0MB

Download
memory/1788-15-0x00007FFC52B50000-0x00007FFC52B60000-memory.dmp

Filesize
64KB

Download
memory/1788-14-0x00007FFC94C30000-0x00007FFC94E25000-memory.dmp

Filesize
2.0MB

Download
memory/1788-18-0x00007FFC94C30000-0x00007FFC94E25000-memory.dmp

Filesize
2.0MB

Download
memory/1788-19-0x00007FFC94C30000-0x00007FFC94E25000-memory.dmp

Filesize
2.0MB

Download
memory/1788-21-0x00007FFC94C30000-0x00007FFC94E25000-memory.dmp

Filesize
2.0MB

Download
memory/1788-20-0x00007FFC94C30000-0x00007FFC94E25000-memory.dmp

Filesize
2.0MB

Download
memory/1788-17-0x00007FFC94C30000-0x00007FFC94E25000-memory.dmp

Filesize
2.0MB

Download
memory/1788-13-0x00007FFC94C30000-0x00007FFC94E25000-memory.dmp

Filesize
2.0MB

Download
memory/1788-31-0x00007FFC94C30000-0x00007FFC94E25000-memory.dmp

Filesize
2.0MB

Download
memory/1788-2-0x00007FFC54CB0000-0x00007FFC54CC0000-memory.dmp

Filesize
64KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads