observer | 89ca8d8ad85b97f47fbd5f9e3bd70168b6ca6e7ca1f56df7990b44acc3522815

Analysis

max time kernel
142s
max time network
136s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
09/08/2024, 21:12

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General

Target

observer (3)05.exe
Size

368KB
MD5

0160251d7bd26c489df555fbe24dd9be
SHA1

08a8fb714b35750f3bdde61171b93590c1955f12
SHA256

89ca8d8ad85b97f47fbd5f9e3bd70168b6ca6e7ca1f56df7990b44acc3522815
SHA512

430eb4c9224abe0b7f54c4a4d7d473aef6e4fe72de38bedfb6e54dcda2544819f211bd85f679505455b27173b8322f26cdd410fa25528f7e6606b73897bf8b50
SSDEEP

6144:NynF+dLobizEYd7DVlEfyxhRb0HzKo6BP6B8dZft1iBVBDG5:HdL+iz5FDVlEqhRb0He5EFBVBE

Score

10^/10

observer discovery stealer

Malware Config

Extracted

Family

observer

http://91.103.252.17:8912

Signatures

Observer
Observer is an infostealer written in C++.
stealer observer

Program crash 1 IoCs

pid	pid_target	Process	procid_target
3764	4092	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	observer (3)05.exe

C:\Users\Admin\AppData\Local\Temp\observer (3)05.exe
"C:\Users\Admin\AppData\Local\Temp\observer (3)05.exe"
1⤵
- System Location Discovery: System Language Discovery
PID:4092
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4092 -s 1204
  2⤵
  - Program crash
  PID:3764

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 428 -p 4092 -ip 4092
1⤵
PID:4516

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/4092-0-0x00000000021B0000-0x00000000021FB000-memory.dmp

Filesize
300KB

Download
memory/4092-5-0x00007FFF60990000-0x00007FFF60B85000-memory.dmp

Filesize
2.0MB

Download
memory/4092-6-0x00007FFF60990000-0x00007FFF60B85000-memory.dmp

Filesize
2.0MB

Download
memory/4092-7-0x00000000021B0000-0x00000000021FB000-memory.dmp

Filesize
300KB

Download