MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 8299e1c15b75e38fbd3aca4b5e64ee8994d48458023764c9f899604f8a11cdab. 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: 14


Intelligence 14 IOCs YARA 2 File information Comments

SHA256 hash: 8299e1c15b75e38fbd3aca4b5e64ee8994d48458023764c9f899604f8a11cdab
SHA3-384 hash: fd7bc90e1e6927d882cbc790fe5ea1f4f9f1ec2ab5426e2c367aa9b08865be6a82deccf876929b5f5fc98f606eb80d01
SHA1 hash: 3b70cc23e7877fea920e0260ef6fd9b56076930c
MD5 hash: 13125bd66d02c013b3eda2c69aff4ef3
humanhash: lima-hawaii-alpha-princess
File name:SecuriteInfo.com.Win32.BackdoorX-gen.25314.22004
Download: download sample
Signature ObserverStealer
File size:1'075'411 bytes
First seen:2024-02-20 09:28:22 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 1e13c87ad8b783b6ccf9a85c1dc91764 (2 x Rhadamanthys, 1 x Stealc, 1 x ObserverStealer)
ssdeep 24576:RtLWjQcTsLY9K9ZZqf5MoLtaumQ1dpx8pUO0LV:3L6L6Y9KXZqf5LLl1jrfJ
Threatray 2'359 similar samples on MalwareBazaar
TLSH T16C350114D902A13BF8F315B7CAFF583DA618A701170564CB63C859AEAB3D9E27D3016B
TrID 38.7% (.EXE) Microsoft Visual C++ compiled executable (generic) (16529/12/5)
24.6% (.EXE) Win64 Executable (generic) (10523/12/4)
11.8% (.EXE) Win16 NE executable (generic) (5038/12/1)
10.5% (.EXE) Win32 Executable (generic) (4504/4/1)
4.7% (.EXE) OS/2 Executable (generic) (2029/13)
File icon (PE):PE icon
dhash icon 9371d4b2b2d43145 (1 x ObserverStealer)
Reporter SecuriteInfoCom
Tags:exe ObserverStealer

Intelligence


File Origin
# of uploads :
1
# of downloads :
301
Origin country :
FR FR
Vendor Threat Intelligence
Result
Verdict:
Suspicious
Maliciousness:

Behaviour
Searching for the window
Creating a file in the %temp% subdirectories
Сreating synchronization primitives
Launching cmd.exe command interpreter
Creating a process with a hidden window
Moving a file to the %temp% subdirectory
Launching a process
Using the Windows Management Instrumentation requests
Searching for synchronization primitives
Running batch commands
Creating a process from a recently created file
Creating a window
DNS request
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
fingerprint installer keylogger lolbin overlay packed shell32
Result
Verdict:
MALICIOUS
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Malware family:
Generic Malware
Verdict:
Malicious
Result
Threat name:
n/a
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Signature
Antivirus / Scanner detection for submitted sample
Antivirus detection for URL or domain
Contains functionality to register a low level keyboard hook
Deletes itself after installation
Drops PE files with a suspicious file extension
Found API chain indicative of sandbox detection
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for submitted file
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Crypto Currency Wallets
Uses known network protocols on non-standard ports
Uses ping.exe to check the status of other devices and networks
Uses ping.exe to sleep
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1395139 Sample: SecuriteInfo.com.Win32.Back... Startdate: 20/02/2024 Architecture: WINDOWS Score: 100 34 gKXZxBgABeg.gKXZxBgABeg 2->34 44 Multi AV Scanner detection for domain / URL 2->44 46 Antivirus detection for URL or domain 2->46 48 Antivirus / Scanner detection for submitted sample 2->48 50 2 other signatures 2->50 8 SecuriteInfo.com.Win32.BackdoorX-gen.25314.22004.exe 13 2->8         started        signatures3 process4 file5 30 C:\Users\user\AppData\Local\Temp\...\Compound, PE32 8->30 dropped 52 Contains functionality to register a low level keyboard hook 8->52 12 cmd.exe 1 8->12         started        15 conhost.exe 8->15         started        signatures6 process7 signatures8 54 Uses ping.exe to sleep 12->54 56 Drops PE files with a suspicious file extension 12->56 58 Uses ping.exe to check the status of other devices and networks 12->58 17 Awareness.pif 14 12->17         started        21 cmd.exe 2 12->21         started        24 cmd.exe 2 12->24         started        26 7 other processes 12->26 process9 dnsIp10 32 5.42.66.25, 3000, 49727, 49728 RU-KSTVKolomnaGroupofcompaniesGuarantee-tvRU Russian Federation 17->32 36 Found API chain indicative of sandbox detection 17->36 38 Tries to harvest and steal browser information (history, passwords, etc) 17->38 40 Deletes itself after installation 17->40 42 Tries to steal Crypto Currency Wallets 17->42 28 C:\Users\user\AppData\Local\...\Awareness.pif, PE32 21->28 dropped file11 signatures12
Threat name:
Win32.Trojan.Generic
Status:
Malicious
First seen:
2024-02-17 19:20:45 UTC
File Type:
PE (Exe)
Extracted files:
18
AV detection:
17 of 24 (70.83%)
Threat level:
  2/5
Result
Malware family:
observer
Score:
  10/10
Tags:
family:observer stealer
Behaviour
Enumerates processes with tasklist
Runs ping.exe
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Program crash
Checks computer location settings
Deletes itself
Executes dropped EXE
Loads dropped DLL
Observer
Malware Config
C2 Extraction:
http://5.42.66.25:3000
Unpacked files
SH256 hash:
976fa5827e04315588ce751fa5e59081724f9ded01de1a2af2ef30a3efc628d1
MD5 hash:
f1b9d099fbf458da844333fe2bb28fb8
SHA1 hash:
8a0e0e0e061b42f8efa490e9f5cb0abb068c9e81
Detections:
AutoIT_Compiled
SH256 hash:
8299e1c15b75e38fbd3aca4b5e64ee8994d48458023764c9f899604f8a11cdab
MD5 hash:
13125bd66d02c013b3eda2c69aff4ef3
SHA1 hash:
3b70cc23e7877fea920e0260ef6fd9b56076930c
Please note that we are no longer able to provide a coverage score for Virus Total.

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:PE_Digital_Certificate
Author:albertzsigovits
Rule name:PE_Potentially_Signed_Digital_Certificate
Author:albertzsigovits

File information


The table below shows additional information about this malware sample such as delivery method and external references.

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