MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 b5e6dde637ff9dbc4dc8602c2340a4697009e2e4f1d876b9aaa6d7d0608cfcc6. While MalwareBazaar tries to identify whether the sample provided is malicious or not, there is no guarantee that a sample in MalwareBazaar is malicious.
Database Entry
ObserverStealer
Vendor detections: 13
| SHA256 hash: | b5e6dde637ff9dbc4dc8602c2340a4697009e2e4f1d876b9aaa6d7d0608cfcc6 |
|---|---|
| SHA3-384 hash: | f946b1f1f6bbe38d22bc46c972d842e3c5b4003d774c40f1b287e22f933b1bd7994b4bce149059d683d3481b5237d026 |
| SHA1 hash: | 5f396e6e296ad01765c0e090dbb0130698531b91 |
| MD5 hash: | f700c7059dcb4db8b23e7f31ec135b7b |
| humanhash: | maine-island-network-texas |
| File name: | SecuriteInfo.com.Trojan.PWS.Stealer.36988.2576.11471 |
| Download: | download sample |
| Signature | ObserverStealer |
| File size: | 284'672 bytes |
| First seen: | 2024-05-06 15:29:32 UTC |
| Last seen: | 2025-03-07 14:56:18 UTC |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | 34fc5754badd722e29654c8e5ce4f927 (1 x ObserverStealer) |
| ssdeep | 6144:DOfB5WbIkhMXcZhRbW5mZceS2mlAOYE/u:K5cMsZXVAlqE2 |
| TLSH | T11D54B002F6D1C0B3D97219320A35AB7ACE7DFD240D619A6B93E41D6ADF70280D635B72 |
| TrID | 55.2% (.EXE) Win64 Executable (generic) (10523/12/4) 23.6% (.EXE) Win32 Executable (generic) (4504/4/1) 10.5% (.EXE) Generic Win/DOS Executable (2002/3) 10.5% (.EXE) DOS Executable Generic (2000/1) |
| Reporter |  SecuriteInfoCom |
| Tags: | exe ObserverStealer |
Intelligence
File Origin
# of uploads :
2
# of downloads :
390
Origin country :
FRVendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
b5e6dde637ff9dbc4dc8602c2340a4697009e2e4f1d876b9aaa6d7d0608cfcc6.exe
Verdict:
Malicious activity
Analysis date:
2024-05-06 15:32:24 UTC
Tags:
n/a
Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Result
Verdict:
Malware
Maliciousness:
Behaviour
Searching for the window
Creating a window
Launching the default Windows debugger (dwwin.exe)
Connection attempt to an infection source
Verdict:
Malicious
Threat level:
10/10
Confidence:
100%
Tags:
fingerprint stealer
Verdict:
Malicious
Labled as:
Jaik.Generic
Verdict:
Malicious
Result
Threat name:
n/a
Detection:
malicious
Classification:
spyw
Score:
72 / 100
Signature
Antivirus / Scanner detection for submitted sample
Contains functionality to steal saved passwords of Firefox
Machine Learning detection for sample
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for submitted file
Behaviour
Behavior Graph:
Score:
98%
Verdict:
Malware
File Type:
PE
Threat name:
Win32.Trojan.ObserverStealer
Status:
Malicious
First seen:
2023-07-26 13:12:44 UTC
File Type:
PE (Exe)
AV detection:
25 of 38 (65.79%)
Threat level:
5/5
Detection(s):
Suspicious file
Verdict:
malicious
Result
Malware family:
observer
Score:
10/10
Tags:
family:observer
Behaviour
Program crash
Malware Config
C2 Extraction:
http://91.103.252.17:8912
Unpacked files
SH256 hash:
b5e6dde637ff9dbc4dc8602c2340a4697009e2e4f1d876b9aaa6d7d0608cfcc6
MD5 hash:
f700c7059dcb4db8b23e7f31ec135b7b
SHA1 hash:
5f396e6e296ad01765c0e090dbb0130698531b91
Detections:
win_observer_stealer_auto
INDICATOR_SUSPICIOUS_EXE_SQLQuery_ConfidentialDataStore
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
YARA Signatures
MalwareBazaar uses YARA rules from several public and non-public repositories, such as YARAhub and Malpedia. Those are being matched against malware samples uploaded to MalwareBazaar as well as against any suspicious process dumps they may create. Please note that only results from TLP:CLEAR rules are being displayed.
| Rule name: | cobalt_strike_tmp01925d3f |
|---|---|
| Author: | The DFIR Report |
| Description: | files - file ~tmp01925d3f.exe |
| Reference: | https://thedfirreport.com |
| Rule name: | DebuggerCheck__API |
|---|---|
| Reference: | https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara |
| Rule name: | INDICATOR_SUSPICIOUS_EXE_SQLQuery_ConfidentialDataStore |
|---|---|
| Author: | ditekSHen |
| Description: | Detects executables containing SQL queries to confidential data stores. Observed in infostealers |
| Rule name: | maldoc_find_kernel32_base_method_1 |
|---|---|
| Author: | Didier Stevens (https://DidierStevens.com) |
| Rule name: | win_observer_stealer_auto |
|---|---|
| Author: | Felix Bilstein - yara-signator at cocacoding dot com |
| Description: | Detects win.observer_stealer. |
File information
The table below shows additional information about this malware sample such as delivery method and external references.
Web download
Delivery method
Distributed via web download
BLint
The following table provides more information about this file using BLint. BLint is a Binary Linter to check the security properties, and capabilities in executables.
Findings
| ID | Title | Severity |
|---|---|---|
| CHECK_AUTHENTICODE | Missing Authenticode | high |
| CHECK_DLL_CHARACTERISTICS | Missing dll Security Characteristics (HIGH_ENTROPY_VA) | high |
Reviews
| ID | Capabilities | Evidence |
|---|---|---|
| WIN32_PROCESS_API | Can Create Process and Threads | KERNEL32.dll::CreateProcessW KERNEL32.dll::OpenProcess KERNEL32.dll::CloseHandle KERNEL32.dll::CreateThread |
| WIN_BASE_API | Uses Win Base API | KERNEL32.dll::TerminateProcess KERNEL32.dll::LoadLibraryA KERNEL32.dll::LoadLibraryW KERNEL32.dll::LoadLibraryExW KERNEL32.dll::GetStartupInfoW KERNEL32.dll::GetCommandLineA KERNEL32.dll::GetCommandLineW |
| WIN_BASE_EXEC_API | Can Execute other programs | KERNEL32.dll::WriteConsoleW KERNEL32.dll::SetStdHandle KERNEL32.dll::GetConsoleWindow KERNEL32.dll::GetConsoleOutputCP KERNEL32.dll::GetConsoleMode |
| WIN_BASE_IO_API | Can Create Files | KERNEL32.dll::CopyFileExW KERNEL32.dll::CopyFileW KERNEL32.dll::CreateFileW KERNEL32.dll::DeleteFileW KERNEL32.dll::GetFileAttributesW |
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