310830c39b2d3910613bdc42384a7254bc9c50f0516671d57009063763778e7b

General

Target

310830c39b2d3910613bdc42384a7254bc9c50f0516671d57009063763778e7b.xls
Size

70KB
MD5

3f4225eca7e5c48b0127c00a23096b8b
SHA1

71a30d68fabc33d43fe6aef4698d4f46e5bd885f
SHA256

310830c39b2d3910613bdc42384a7254bc9c50f0516671d57009063763778e7b
SHA512

ac61991747dc9d917f452f173a03efca6641871017e4c1d1cd43f9949db67f434315b78abe45a467f57be1e37dcba1f8ff9eecee34d6b22d491e2d07f265643e
SSDEEP

1536:OhKpb8rGYrMPe3q7Q0XV5xtezE8vG8UM+/+hDcnTLiQrRTZws8E7K:uKpb8rGYrMPe3q7Q0XV5xtezE8vG8UMF

Score

10^/10

Malware Config

Extracted

Language

xlm4.0

Source

URLs

xlm40.dropper

https://prprofile.com/wp-admin/CIqrvgYsvBiBlIM/

xlm40.dropper

https://retardantedefuegoperu.com/slider/rFhAa78/

xlm40.dropper

http://survei.absensi.net/cc-content/YCcjkOA3ijYNu46Y/

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	3608	2984	regsvr32.exe	82
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	3748	2984	regsvr32.exe	82
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	1376	2984	regsvr32.exe	82

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
2984	EXCEL.EXE

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
2984	EXCEL.EXE
2984	EXCEL.EXE

Suspicious use of SetWindowsHookEx 12 IoCs

pid	Process
2984	EXCEL.EXE
2984	EXCEL.EXE
2984	EXCEL.EXE
2984	EXCEL.EXE
2984	EXCEL.EXE
2984	EXCEL.EXE
2984	EXCEL.EXE
2984	EXCEL.EXE
2984	EXCEL.EXE
2984	EXCEL.EXE
2984	EXCEL.EXE
2984	EXCEL.EXE

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2984 wrote to memory of 3608	2984	EXCEL.EXE	87
PID 2984 wrote to memory of 3608	2984	EXCEL.EXE	87
PID 2984 wrote to memory of 3748	2984	EXCEL.EXE	88
PID 2984 wrote to memory of 3748	2984	EXCEL.EXE	88
PID 2984 wrote to memory of 1376	2984	EXCEL.EXE	89
PID 2984 wrote to memory of 1376	2984	EXCEL.EXE	89

C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE
"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\310830c39b2d3910613bdc42384a7254bc9c50f0516671d57009063763778e7b.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:2984
- C:\Windows\System32\regsvr32.exe
  C:\Windows\System32\regsvr32.exe /S ..\cusoa1.ocx
  2⤵
  - Process spawned unexpected child process
  PID:3608
- C:\Windows\System32\regsvr32.exe
  C:\Windows\System32\regsvr32.exe /S ..\cusoa2.ocx
  2⤵
  - Process spawned unexpected child process
  PID:3748
- C:\Windows\System32\regsvr32.exe
  C:\Windows\System32\regsvr32.exe /S ..\cusoa3.ocx
  2⤵
  - Process spawned unexpected child process
  PID:1376

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
1KB

MD5
62ff681276c63bdc651f2097e24ceeb1

SHA1
9734e38b1a7aeb8679b6262524bbd5dbcff57903

SHA256
064df93bb8c159e3000334567d417679ec3ac680c48330c8d6fe88befd3e6f5d

SHA512
1b03f390fd32f88fbadb6447480e3f4f25860b4182356a8325e382812511d84be889e5b476e58d5493bd6c27ddb03396597f0671162057d2bf460b7a525bc203

Download Submit
memory/2984-5-0x00007FFF36010000-0x00007FFF36205000-memory.dmp

Filesize
2.0MB

Download
memory/2984-12-0x00007FFF36010000-0x00007FFF36205000-memory.dmp

Filesize
2.0MB

Download
memory/2984-1-0x00007FFEF6090000-0x00007FFEF60A0000-memory.dmp

Filesize
64KB

Download
memory/2984-7-0x00007FFEF6090000-0x00007FFEF60A0000-memory.dmp

Filesize
64KB

Download
memory/2984-6-0x00007FFF36010000-0x00007FFF36205000-memory.dmp

Filesize
2.0MB

Download
memory/2984-11-0x00007FFF36010000-0x00007FFF36205000-memory.dmp

Filesize
2.0MB

Download
memory/2984-0-0x00007FFEF6090000-0x00007FFEF60A0000-memory.dmp

Filesize
64KB

Download
memory/2984-10-0x00007FFF36010000-0x00007FFF36205000-memory.dmp

Filesize
2.0MB

Download
memory/2984-13-0x00007FFEF3DF0000-0x00007FFEF3E00000-memory.dmp

Filesize
64KB

Download
memory/2984-9-0x00007FFF36010000-0x00007FFF36205000-memory.dmp

Filesize
2.0MB

Download
memory/2984-2-0x00007FFEF6090000-0x00007FFEF60A0000-memory.dmp

Filesize
64KB

Download
memory/2984-8-0x00007FFF36010000-0x00007FFF36205000-memory.dmp

Filesize
2.0MB

Download
memory/2984-20-0x00007FFF36010000-0x00007FFF36205000-memory.dmp

Filesize
2.0MB

Download
memory/2984-15-0x00007FFF36010000-0x00007FFF36205000-memory.dmp

Filesize
2.0MB

Download
memory/2984-16-0x00007FFF36010000-0x00007FFF36205000-memory.dmp

Filesize
2.0MB

Download
memory/2984-18-0x00007FFF36010000-0x00007FFF36205000-memory.dmp

Filesize
2.0MB

Download
memory/2984-14-0x00007FFEF3DF0000-0x00007FFEF3E00000-memory.dmp

Filesize
64KB

Download
memory/2984-21-0x00007FFF36010000-0x00007FFF36205000-memory.dmp

Filesize
2.0MB

Download
memory/2984-19-0x00007FFF36010000-0x00007FFF36205000-memory.dmp

Filesize
2.0MB

Download
memory/2984-17-0x00007FFF36010000-0x00007FFF36205000-memory.dmp

Filesize
2.0MB

Download
memory/2984-4-0x00007FFEF6090000-0x00007FFEF60A0000-memory.dmp

Filesize
64KB

Download
memory/2984-40-0x00007FFF360AD000-0x00007FFF360AE000-memory.dmp

Filesize
4KB

Download
memory/2984-41-0x00007FFF36010000-0x00007FFF36205000-memory.dmp

Filesize
2.0MB

Download
memory/2984-3-0x00007FFF360AD000-0x00007FFF360AE000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads