observer | bb17d47f10fefcee4c883f93f2989e753b969298dd70262ae00696dd482dc9b4

Analysis

max time kernel
149s
max time network
131s
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 (4)07.exe
Size

380KB
MD5

371e14f7e146ff22cb9ebe2f78cbfb7f
SHA1

2fde663b31a46e83f3034464674ad3f3a85f6972
SHA256

bb17d47f10fefcee4c883f93f2989e753b969298dd70262ae00696dd482dc9b4
SHA512

457cb7d4056200a4bcde4390d411e7f886e8b2fb00aef3d15d68b22c5d09bff74eeca9b241a6e69252a1e91acdaa97c23904ef8bbd5f6d6d3f852233a89c1eab
SSDEEP

3072:D7g6EFujqoyCdr5vWh6fPpyuvFU4F+fHRfAGdtq6mDBVz8gJeRvqol4c4QqVo+Po:Hg6EFYdNOhN5N63h8gCr4bQcPfIu3Rpm

Score

10^/10

observer discovery stealer

Malware Config

Extracted

Family

observer

http://5.42.66.25:3000

Signatures

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

Program crash 1 IoCs

pid	pid_target	Process	procid_target
4456	4380	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 (4)07.exe

C:\Users\Admin\AppData\Local\Temp\observer (4)07.exe
"C:\Users\Admin\AppData\Local\Temp\observer (4)07.exe"
1⤵
- System Location Discovery: System Language Discovery
PID:4380
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4380 -s 1216
  2⤵
  - Program crash
  PID:4456

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 428 -p 4380 -ip 4380
1⤵
PID:1096

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

Replay Monitor

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Downloads

memory/4380-0-0x0000000002080000-0x00000000020C4000-memory.dmp

Filesize
272KB

Download
memory/4380-5-0x0000000002080000-0x00000000020C4000-memory.dmp

Filesize
272KB

Download