535db8778a709bec57e7ac0caa1ecf1e2e685d19882af87f38a619a3e30df137

Analysis

max time kernel
118s
max time network
120s
platform
windows7_x64
resource
win7-20241023-en
resource tags

arch:x64arch:x86image:win7-20241023-enlocale:en-usos:windows7-x64system
submitted
20/11/2024, 13:58

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General

Target

535db8778a709bec57e7ac0caa1ecf1e2e685d19882af87f38a619a3e30df137.xls
Size

48KB
MD5

be4fd20947eef2ab8c02d09ff7c9840b
SHA1

499b85913ba0600b00f2622886ec07fc32ea1975
SHA256

535db8778a709bec57e7ac0caa1ecf1e2e685d19882af87f38a619a3e30df137
SHA512

ad6adc7fa811a9c17e77a5c494a35443c784a4490f3e1ffc49f368ad3f2ba31b03b77dfb3875be87a1152dde777283ec7f90c65b9e25d9e2a50537ef4d569369
SSDEEP

768:uDM52tfQXi8vgLZkTOHkQT51Vp6AwPdM8gQ6JL/K9abdDKHGeWmqkySbuR/3ej7d:u62tfQXi8vgLZkTOHkQT51Vp6AwPe8gS

Score

10^/10

discovery

Malware Config

Extracted

Language

xlm4.0

Source

URLs

xlm40.dropper

https://famesa.com.ar/dos/gaa/

xlm40.dropper

https://www.fantasyclub.com.br/imgs/rggmVTfvT/

xlm40.dropper

http://ecoarch.com.tw/cgi-bin/vWW/

xlm40.dropper

https://dp-flex.co.jp/cgi-bin/Bt3Ycq5Tix/

xlm40.dropper

http://dharmacomunicacao.com.br/OLD/PjBkVBhUH/

Signatures

Process spawned unexpected child process 1 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 (x86)\Microsoft Office\Office14\EXCEL.EXE is not expected to spawn this process	2124	2132	regsvr32.exe	29

System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	EXCEL.EXE
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	regsvr32.exe

Enumerates system info in registry 2 TTPs 1 IoCs

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\FloatingPointProcessor	EXCEL.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
2132	EXCEL.EXE

Suspicious use of SetWindowsHookEx 5 IoCs

pid	Process
2132	EXCEL.EXE
2132	EXCEL.EXE
2132	EXCEL.EXE
2132	EXCEL.EXE
2132	EXCEL.EXE

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2132 wrote to memory of 2124	2132	EXCEL.EXE	31
PID 2132 wrote to memory of 2124	2132	EXCEL.EXE	31
PID 2132 wrote to memory of 2124	2132	EXCEL.EXE	31
PID 2132 wrote to memory of 2124	2132	EXCEL.EXE	31
PID 2132 wrote to memory of 2124	2132	EXCEL.EXE	31
PID 2132 wrote to memory of 2124	2132	EXCEL.EXE	31
PID 2132 wrote to memory of 2124	2132	EXCEL.EXE	31

C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE
"C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE" /dde C:\Users\Admin\AppData\Local\Temp\535db8778a709bec57e7ac0caa1ecf1e2e685d19882af87f38a619a3e30df137.xls
1⤵
- System Location Discovery: System Language Discovery
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2132
- C:\Windows\SysWOW64\regsvr32.exe
  regsvr32.exe ..\wnrul.ocx
  2⤵
  - Process spawned unexpected child process
  - System Location Discovery: System Language Discovery
  PID:2124

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\Cab3556.tmp

Filesize
70KB

MD5
49aebf8cbd62d92ac215b2923fb1b9f5

SHA1
1723be06719828dda65ad804298d0431f6aff976

SHA256
b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

SHA512
bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

Download Submit
C:\Users\Admin\AppData\Local\Temp\Tar3633.tmp

Filesize
181KB

MD5
4ea6026cf93ec6338144661bf1202cd1

SHA1
a1dec9044f750ad887935a01430bf49322fbdcb7

SHA256
8efbc21559ef8b1bcf526800d8070baad42474ce7198e26fa771dbb41a76b1d8

SHA512
6c7e0980e39aacf4c3689802353f464a08cd17753bd210ee997e5f2a455deb4f287a9ef74d84579dbde49bc96213cd2b8b247723919c412ea980aa6e6bfe218b

Download Submit
C:\Users\Admin\wnrul.ocx

Filesize
3KB

MD5
cc666088a917dd7f5da8b6689069aec0

SHA1
f688de634ccd20939a522391abb5049483e726bd

SHA256
332d102987273318f13e7fc89a043613c6dd5dd7eb7d21033a2ab73dd438a405

SHA512
77a15aebeb10d355e3723fdebd2ea59a09a60d54f09ab9a6f06c52dbfa3bea0965ff49b7a1c2e6f4ff94f3fe903e6301188de2f80801a8a978c8c09b3356c8dc

Download Submit
memory/2132-0-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download
memory/2132-1-0x000000007293D000-0x0000000072948000-memory.dmp

Filesize
44KB

Download
memory/2132-186-0x000000007293D000-0x0000000072948000-memory.dmp

Filesize
44KB

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Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads