3265fe0d40f5fc8fd2c92c8794108a9375fda9f2cfafdac99c6994daff45befa

Analysis

max time kernel
148s
max time network
145s
platform
windows10-2004_x64
resource
win10v2004-20231222-en
resource tags

arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system
submitted
28/12/2023, 20:34

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General

Target

f64504e860faff868e8674a67881cee2.exe
Size

1.3MB
MD5

f64504e860faff868e8674a67881cee2
SHA1

4743613cb5572e4d9f7c796f974fe2e8f7772abe
SHA256

3265fe0d40f5fc8fd2c92c8794108a9375fda9f2cfafdac99c6994daff45befa
SHA512

c3bc98e2d373c640a3c09db62fce75edc988612aee7f6472d239fbe6606de9d87e010adff19aadf7cfc512742fcc7791bc73e8a15b4d816405501f007ae90b99
SSDEEP

24576:2cGl5ZvtGOQxMPoVgXco9/MTV5NpkE2RfdZJhMFXB53tXM:yrtGOyMPoVgMgUZ5bkZR1ZTMd3RM

Score

7^/10

Malware Config

Signatures

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-3803511929-1339359695-2191195476-1000\Control Panel\International\Geo\Nation	f64504e860faff868e8674a67881cee2.exe

Executes dropped EXE 1 IoCs

pid	Process
5056	server-teste.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1696	5056	WerFault.exe	92

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1680	f64504e860faff868e8674a67881cee2.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 1680 wrote to memory of 5056	1680	f64504e860faff868e8674a67881cee2.exe	92
PID 1680 wrote to memory of 5056	1680	f64504e860faff868e8674a67881cee2.exe	92
PID 1680 wrote to memory of 5056	1680	f64504e860faff868e8674a67881cee2.exe	92

C:\Users\Admin\AppData\Local\Temp\f64504e860faff868e8674a67881cee2.exe
"C:\Users\Admin\AppData\Local\Temp\f64504e860faff868e8674a67881cee2.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1680
- C:\Users\Admin\AppData\Local\Temp\server-teste.exe
  "C:\Users\Admin\AppData\Local\Temp\server-teste.exe"
  2⤵
  - Executes dropped EXE
  PID:5056
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 5056 -s 284
    3⤵
    - Program crash
    PID:1696

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 5056 -ip 5056
1⤵
PID:4016

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

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\server-teste.exe

Filesize
118KB

MD5
60681fcb785432565135e3ecc92377a3

SHA1
fb244fe3c5aaf340bf0a81c56e0694de12404f68

SHA256
b43a5676a8b362c509956ada42453e6821e85e32679279d669ed5187963536e9

SHA512
27530cd06510b5a77d6a80e9422673e13428443e28af42401b5e5e6d32104c56a55c419ac886919175be29a406cf710a654acea3ac24f04bb3625e42b6487839

Download Submit
C:\Users\Admin\AppData\Local\Temp\server-teste.exe

Filesize
1.3MB

MD5
b09a4611a34f30cd75ce1fc9cdcc1e26

SHA1
01c5be40120cde718365145a2bdbd72295cec0c6

SHA256
297e8483005adcd6d76f1512a788a396aa58ad7ff26591b0df4b26ee9b3e8a2a

SHA512
457b2787faf059d195058da6846435ef445b0b406d594ebbb4567e4a609874e9813ac9445053bf3465f153f030e523de302400c1110ff92d073672cbd5c389fe

Download Submit
C:\Users\Admin\AppData\Local\Temp\server-teste.exe

Filesize
121KB

MD5
77c38329233db7190a472d6f78dd52bc

SHA1
4748b1951896821d663796b6d9b294be94f81ba2

SHA256
f558fd50b36d856b43e6a43aa7ec9e39b1c45ebdf5765ac3a833d5674a244646

SHA512
8d5a8aca23470100317f153417a7466f942553fc915464d7042301567afe38a7991a88fd51e95989471c17ef282eff18e24eacd0190e5d41d793bc89900d6dfa

Download Submit
memory/5056-11-0x00000000022A0000-0x00000000022A1000-memory.dmp

Filesize
4KB

Download
memory/5056-12-0x0000000000A10000-0x0000000000AED000-memory.dmp

Filesize
884KB

Download