2a3ceec046fc5edd6e1d5f5f6d6fbb591217977a0967e6b0b5ad52c0229c6aad

Analysis

max time kernel
121s
max time network
123s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
29/10/2024, 00:10

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General

Target

r77-x86.dll
Size

109KB
MD5

38fc10fa0e887853119850c77e6067d5
SHA1

5bca8e114613dd3e08c54362ac433fe9f06fa2c0
SHA256

e3450f2a89811cfa81450222ecf1b632ffb339fa4f8b80a147a24969ba45cc65
SHA512

c53f69f7e21118bd7beb2688a87e350133985f2cbb24fbd3a8cc5bcd82575c87cc3278a48d8a0e6e80170ba75580e62cd154b84d830152ee7ba88144fb0b1c64
SSDEEP

3072:JIzGXZZgy65eC736iv2l56458VtMtiG0aMwFo9u:JOGXbgyiGi+l5l5VPswFo9u

Score

3^/10

discovery

Malware Config

Signatures

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2664	1904	WerFault.exe	30

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 use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 2132 wrote to memory of 1904	2132	rundll32.exe	30
PID 2132 wrote to memory of 1904	2132	rundll32.exe	30
PID 2132 wrote to memory of 1904	2132	rundll32.exe	30
PID 2132 wrote to memory of 1904	2132	rundll32.exe	30
PID 2132 wrote to memory of 1904	2132	rundll32.exe	30
PID 2132 wrote to memory of 1904	2132	rundll32.exe	30
PID 2132 wrote to memory of 1904	2132	rundll32.exe	30
PID 1904 wrote to memory of 2664	1904	rundll32.exe	31
PID 1904 wrote to memory of 2664	1904	rundll32.exe	31
PID 1904 wrote to memory of 2664	1904	rundll32.exe	31
PID 1904 wrote to memory of 2664	1904	rundll32.exe	31

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\r77-x86.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2132
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\r77-x86.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1904
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 1904 -s 268
    3⤵
    - Program crash
    PID:2664

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/1904-1-0x000000006F800000-0x000000006F810000-memory.dmp

Filesize
64KB

Download
memory/1904-0-0x0000000077820000-0x0000000077821000-memory.dmp

Filesize
4KB

Download
memory/1904-2-0x0000000000500000-0x000000000050E000-memory.dmp

Filesize
56KB

Download