grandoreiro | 10fc720a537810eb0491d795e54f8c97d4b4fb2d6ac863de2e628fdf2ffae892

Analysis

max time kernel
92s
max time network
137s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
09/11/2024, 02:08

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General

Target

10fc720a537810eb0491d795e54f8c97d4b4fb2d6ac863de2e628fdf2ffae892.dll
Size

30.6MB
MD5

3c7810724be82752b7403f531b2ffa96
SHA1

03703538020f226e3a93c3e4bc98a9e72c3766d1
SHA256

10fc720a537810eb0491d795e54f8c97d4b4fb2d6ac863de2e628fdf2ffae892
SHA512

3a41be6249be95e22ca0180107e4055a5c1b0b2a2dc116a31741cd1a4440a1cf8f917f7bef6dcfc0d37bcc6ffbdf8bddcaa083d53173defeff1ef310226c09fa
SSDEEP

393216:iNkQVZ65EjidScbJBMuXKNhhciGvafyXKNzh:P4L+SGJ4NAikaN

Score

10^/10

grandoreiro banker discovery trojan

Malware Config

Signatures

Detects Grandoreiro payload 6 IoCs

resource	yara_rule
behavioral2/memory/1888-0-0x00000000027E0000-0x000000000469D000-memory.dmp	family_grandoreiro_v1
behavioral2/memory/1888-1-0x00000000027E0000-0x000000000469D000-memory.dmp	family_grandoreiro_v1
behavioral2/memory/1888-8-0x00000000027E0000-0x000000000469D000-memory.dmp	family_grandoreiro_v1
behavioral2/memory/1888-10-0x00000000027E0000-0x000000000469D000-memory.dmp	family_grandoreiro_v1
behavioral2/memory/1888-11-0x00000000027E0000-0x000000000469D000-memory.dmp	family_grandoreiro_v1
behavioral2/memory/1888-12-0x00000000027E0000-0x000000000469D000-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

Program crash 2 IoCs

pid	pid_target	Process	procid_target
4392	1888	WerFault.exe	83
4396	1888	WerFault.exe	83

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 2 IoCs

pid	Process
1888	rundll32.exe
1888	rundll32.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 4836 wrote to memory of 1888	4836	rundll32.exe	83
PID 4836 wrote to memory of 1888	4836	rundll32.exe	83
PID 4836 wrote to memory of 1888	4836	rundll32.exe	83
PID 1888 wrote to memory of 1084	1888	rundll32.exe	86
PID 1888 wrote to memory of 1084	1888	rundll32.exe	86

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\10fc720a537810eb0491d795e54f8c97d4b4fb2d6ac863de2e628fdf2ffae892.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:4836
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\10fc720a537810eb0491d795e54f8c97d4b4fb2d6ac863de2e628fdf2ffae892.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:1888
- - C:\Windows\splwow64.exe
    C:\Windows\splwow64.exe 12288
    3⤵
    PID:1084
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 1888 -s 968
    3⤵
    - Program crash
    PID:4392
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 1888 -s 968
    3⤵
    - Program crash
    PID:4396

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k PrintWorkflow -s PrintWorkflowUserSvc
1⤵
PID:5108

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1888 -ip 1888
1⤵
PID:572

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 532 -p 1888 -ip 1888
1⤵
PID:2156

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/1888-0-0x00000000027E0000-0x000000000469D000-memory.dmp

Filesize
30.7MB

Download
memory/1888-9-0x0000000003879000-0x0000000004429000-memory.dmp

Filesize
11.7MB

Download
memory/1888-1-0x00000000027E0000-0x000000000469D000-memory.dmp

Filesize
30.7MB

Download
memory/1888-7-0x0000000004870000-0x0000000004871000-memory.dmp

Filesize
4KB

Download
memory/1888-8-0x00000000027E0000-0x000000000469D000-memory.dmp

Filesize
30.7MB

Download
memory/1888-6-0x0000000004850000-0x0000000004851000-memory.dmp

Filesize
4KB

Download
memory/1888-5-0x0000000004840000-0x0000000004841000-memory.dmp

Filesize
4KB

Download
memory/1888-4-0x00000000011B0000-0x00000000011B1000-memory.dmp

Filesize
4KB

Download
memory/1888-3-0x0000000000F10000-0x0000000000F11000-memory.dmp

Filesize
4KB

Download
memory/1888-2-0x0000000000F00000-0x0000000000F01000-memory.dmp

Filesize
4KB

Download
memory/1888-10-0x00000000027E0000-0x000000000469D000-memory.dmp

Filesize
30.7MB

Download
memory/1888-11-0x00000000027E0000-0x000000000469D000-memory.dmp

Filesize
30.7MB

Download
memory/1888-12-0x00000000027E0000-0x000000000469D000-memory.dmp

Filesize
30.7MB

Download