grandoreiro | bdd775603c502c44f8fcb4ba3edcde48a6c6b188f20cc76b9b662cc6c7a284c0

Analysis

max time kernel
94s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
27/12/2024, 02:40

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General

Target

bdd775603c502c44f8fcb4ba3edcde48a6c6b188f20cc76b9b662cc6c7a284c0.dll
Size

30.5MB
MD5

458c377c22340ea17a942ab200c063ae
SHA1

5c69e074616448b725250b7181102318f986239b
SHA256

bdd775603c502c44f8fcb4ba3edcde48a6c6b188f20cc76b9b662cc6c7a284c0
SHA512

82105cc7477b4cf208067324358ff6fb5c4a80da881eb7dfcd74551fc5d5cb757f02b1a6ed5da0c3b79770d7c1a195cb65473df04272b405e6dc4a32ae32a7f0
SSDEEP

393216:NpjeWRbosw2LgMubfSEh8XASixsd2mz5KP6AGP5U7dKgw:NteilDE3bKwSIsd2m+5vdKR

Score

10^/10

grandoreiro banker discovery trojan

Malware Config

Signatures

Detects Grandoreiro payload 5 IoCs

resource	yara_rule
behavioral2/memory/3256-0-0x00000000021F0000-0x0000000004088000-memory.dmp	family_grandoreiro_v1
behavioral2/memory/3256-2-0x00000000021F0000-0x0000000004088000-memory.dmp	family_grandoreiro_v1
behavioral2/memory/3256-9-0x00000000021F0000-0x0000000004088000-memory.dmp	family_grandoreiro_v1
behavioral2/memory/3256-11-0x00000000021F0000-0x0000000004088000-memory.dmp	family_grandoreiro_v1
behavioral2/memory/3256-12-0x00000000021F0000-0x0000000004088000-memory.dmp	family_grandoreiro_v1

Grandoreiro
Part of a group of banking trojans, targeting Spanish and Portuguese speaking countries.
trojan banker grandoreiro
Grandoreiro family
grandoreiro
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 1 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	rundll32.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
3256	rundll32.exe
3256	rundll32.exe
3256	rundll32.exe
3256	rundll32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 3184 wrote to memory of 3256	3184	rundll32.exe	83
PID 3184 wrote to memory of 3256	3184	rundll32.exe	83
PID 3184 wrote to memory of 3256	3184	rundll32.exe	83

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\bdd775603c502c44f8fcb4ba3edcde48a6c6b188f20cc76b9b662cc6c7a284c0.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:3184
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\bdd775603c502c44f8fcb4ba3edcde48a6c6b188f20cc76b9b662cc6c7a284c0.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  PID:3256

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/3256-0-0x00000000021F0000-0x0000000004088000-memory.dmp

Filesize
30.6MB

Download
memory/3256-8-0x00000000007A0000-0x00000000007A1000-memory.dmp

Filesize
4KB

Download
memory/3256-7-0x0000000000790000-0x0000000000791000-memory.dmp

Filesize
4KB

Download
memory/3256-10-0x000000000326B000-0x0000000003E17000-memory.dmp

Filesize
11.7MB

Download
memory/3256-2-0x00000000021F0000-0x0000000004088000-memory.dmp

Filesize
30.6MB

Download
memory/3256-9-0x00000000021F0000-0x0000000004088000-memory.dmp

Filesize
30.6MB

Download
memory/3256-6-0x0000000000780000-0x0000000000781000-memory.dmp

Filesize
4KB

Download
memory/3256-5-0x0000000000770000-0x0000000000771000-memory.dmp

Filesize
4KB

Download
memory/3256-4-0x0000000000740000-0x0000000000741000-memory.dmp

Filesize
4KB

Download
memory/3256-3-0x0000000000720000-0x0000000000721000-memory.dmp

Filesize
4KB

Download
memory/3256-11-0x00000000021F0000-0x0000000004088000-memory.dmp

Filesize
30.6MB

Download
memory/3256-12-0x00000000021F0000-0x0000000004088000-memory.dmp

Filesize
30.6MB

Download
memory/3256-13-0x00000000021F0000-0x0000000004088000-memory.dmp

Filesize
30.6MB

Download