455ba1c2d6886dbd57927c9c5d838cb71b80dfa2a9ea4425665aa02316c9ae08

General

Target

455ba1c2d6886dbd57927c9c5d838cb71b80dfa2a9ea4425665aa02316c9ae08.xls
Size

95KB
MD5

4209cc8a62f7b244bdc6a7f21b09445b
SHA1

aa7ac58218e0f58303c65ac970fa7038f1b7a521
SHA256

455ba1c2d6886dbd57927c9c5d838cb71b80dfa2a9ea4425665aa02316c9ae08
SHA512

8459d62989b23223eb4cb1c12a46bdbf6a7039793f866df333a542edab4433f37f0e885136642f0a87234f2360bfbd7f58c32f01e38170245329006be1b6f69b
SSDEEP

1536:UkKpb8rGYrMPe3q7Q0XV5xtezEsi8/dg/HuS4hcTO97v7UYdEJmEj7g:bKpb8rGYrMPe3q7Q0XV5xtezEsi8/dgo

Score

10^/10

Malware Config

Extracted

Language

xlm4.0

Source

URLs

xlm40.dropper

https://yakosurf.com/wp-includes/y9jgKE7f1wMM/

xlm40.dropper

https://fikti.bem.gunadarma.ac.id/SDM/xDYmcOngg/

xlm40.dropper

http://armannahalpersian.ir/armannahalpersian/byxUd7hAO2/

xlm40.dropper

http://disweb.sk/lfHCegwZndgMs/KFfG/

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	2844	4660	regsvr32.exe	81
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	2720	4660	regsvr32.exe	81
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	1976	4660	regsvr32.exe	81
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	5008	4660	regsvr32.exe	81

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
4660	EXCEL.EXE

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
4660	EXCEL.EXE
4660	EXCEL.EXE

Suspicious use of SetWindowsHookEx 12 IoCs

pid	Process
4660	EXCEL.EXE
4660	EXCEL.EXE
4660	EXCEL.EXE
4660	EXCEL.EXE
4660	EXCEL.EXE
4660	EXCEL.EXE
4660	EXCEL.EXE
4660	EXCEL.EXE
4660	EXCEL.EXE
4660	EXCEL.EXE
4660	EXCEL.EXE
4660	EXCEL.EXE

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 4660 wrote to memory of 2844	4660	EXCEL.EXE	86
PID 4660 wrote to memory of 2844	4660	EXCEL.EXE	86
PID 4660 wrote to memory of 2720	4660	EXCEL.EXE	90
PID 4660 wrote to memory of 2720	4660	EXCEL.EXE	90
PID 4660 wrote to memory of 1976	4660	EXCEL.EXE	91
PID 4660 wrote to memory of 1976	4660	EXCEL.EXE	91
PID 4660 wrote to memory of 5008	4660	EXCEL.EXE	93
PID 4660 wrote to memory of 5008	4660	EXCEL.EXE	93

C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE
"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\455ba1c2d6886dbd57927c9c5d838cb71b80dfa2a9ea4425665aa02316c9ae08.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:4660
- C:\Windows\System32\regsvr32.exe
  C:\Windows\System32\regsvr32.exe /S ..\soci1.ocx
  2⤵
  - Process spawned unexpected child process
  PID:2844
- C:\Windows\System32\regsvr32.exe
  C:\Windows\System32\regsvr32.exe /S ..\soci2.ocx
  2⤵
  - Process spawned unexpected child process
  PID:2720
- C:\Windows\System32\regsvr32.exe
  C:\Windows\System32\regsvr32.exe /S ..\soci3.ocx
  2⤵
  - Process spawned unexpected child process
  PID:1976
- C:\Windows\System32\regsvr32.exe
  C:\Windows\System32\regsvr32.exe /S ..\soci4.ocx
  2⤵
  - Process spawned unexpected child process
  PID:5008

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
3KB

MD5
0d2cab94b90ad3b58e1865d7bd962920

SHA1
02cd1c99380af01f2731da262b0b36162bc52980

SHA256
8cc47a0e0c5a9244c31e4d8c39626a8f7943753de2fb7f3f15ee95cb70309ec0

SHA512
5fa15c4d247fd2234b7da54fcd3b245215036d07e17d84635c308cc4e6d2cc348a06683b668367fa8e56fa94ac37180ed9807c4da2cdc4244fbe2d308c0195c1

Download Submit
memory/4660-0-0x00007FFB77EB0000-0x00007FFB77EC0000-memory.dmp

Filesize
64KB

Download
memory/4660-5-0x00007FFB77EB0000-0x00007FFB77EC0000-memory.dmp

Filesize
64KB

Download
memory/4660-3-0x00007FFBB7ECD000-0x00007FFBB7ECE000-memory.dmp

Filesize
4KB

Download
memory/4660-8-0x00007FFBB7E30000-0x00007FFBB8025000-memory.dmp

Filesize
2.0MB

Download
memory/4660-7-0x00007FFBB7E30000-0x00007FFBB8025000-memory.dmp

Filesize
2.0MB

Download
memory/4660-10-0x00007FFBB7E30000-0x00007FFBB8025000-memory.dmp

Filesize
2.0MB

Download
memory/4660-6-0x00007FFBB7E30000-0x00007FFBB8025000-memory.dmp

Filesize
2.0MB

Download
memory/4660-9-0x00007FFBB7E30000-0x00007FFBB8025000-memory.dmp

Filesize
2.0MB

Download
memory/4660-2-0x00007FFB77EB0000-0x00007FFB77EC0000-memory.dmp

Filesize
64KB

Download
memory/4660-1-0x00007FFB77EB0000-0x00007FFB77EC0000-memory.dmp

Filesize
64KB

Download
memory/4660-13-0x00007FFB75B80000-0x00007FFB75B90000-memory.dmp

Filesize
64KB

Download
memory/4660-12-0x00007FFBB7E30000-0x00007FFBB8025000-memory.dmp

Filesize
2.0MB

Download
memory/4660-11-0x00007FFBB7E30000-0x00007FFBB8025000-memory.dmp

Filesize
2.0MB

Download
memory/4660-16-0x00007FFB75B80000-0x00007FFB75B90000-memory.dmp

Filesize
64KB

Download
memory/4660-14-0x00007FFBB7E30000-0x00007FFBB8025000-memory.dmp

Filesize
2.0MB

Download
memory/4660-15-0x00007FFBB7E30000-0x00007FFBB8025000-memory.dmp

Filesize
2.0MB

Download
memory/4660-18-0x00007FFBB7E30000-0x00007FFBB8025000-memory.dmp

Filesize
2.0MB

Download
memory/4660-17-0x00007FFBB7E30000-0x00007FFBB8025000-memory.dmp

Filesize
2.0MB

Download
memory/4660-45-0x00007FFBB7E30000-0x00007FFBB8025000-memory.dmp

Filesize
2.0MB

Download
memory/4660-4-0x00007FFB77EB0000-0x00007FFB77EC0000-memory.dmp

Filesize
64KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads