MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 3d3a6fda8b811e0da21060b68b0ae7b90f626c6d21c9034f79cb379cba2c0c0b. 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



Stealc


Vendor detections: 15


Intelligence 15 IOCs YARA 1 File information Comments

SHA256 hash: 3d3a6fda8b811e0da21060b68b0ae7b90f626c6d21c9034f79cb379cba2c0c0b
SHA3-384 hash: a0007a6c34cb04a5c3a4bfcb74e3e7540dbdfe87472dd118fc594c4ae543ceaf9122b4208cd7237da6531b86cd13a4cb
SHA1 hash: 2b06401eb1399c85f88c3807b49103b69015cfe2
MD5 hash: 8fbad4754f1e6b66a7fdaa8e8378eeca
humanhash: papa-robin-six-mexico
File name:8fbad4754f1e6b66a7fdaa8e8378eeca.exe
Download: download sample
Signature Stealc
File size:203'264 bytes
First seen:2023-12-08 09:35:24 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 9f00411dad86719183d5f9af65ce3a76 (7 x Smoke Loader, 5 x Stealc, 2 x Glupteba)
ssdeep 3072:5hnVvqgWl3MJ2zuLx9oWfJRLYrZ5Ok4Lo:LdNWNMJ2SsW7+
TLSH T159142803A2EC7F11E9E647724F2EB6ECBB1EF5508E586B6922084F1F4570271E663B11
TrID 47.3% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
15.9% (.EXE) Win64 Executable (generic) (10523/12/4)
9.9% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
7.6% (.EXE) Win16 NE executable (generic) (5038/12/1)
6.8% (.EXE) Win32 Executable (generic) (4505/5/1)
File icon (PE):PE icon
dhash icon 1030c09030301800 (2 x Stealc, 1 x Smoke Loader, 1 x RecordBreaker)
Reporter abuse_ch
Tags:exe Stealc


Avatar
abuse_ch
Stealc C2:
http://5.42.66.36/1fa9cf51b66b1f7e.php

Intelligence


File Origin
# of uploads :
1
# of downloads :
319
Origin country :
NL NL
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Sending a custom TCP request
Сreating synchronization primitives
Creating a file in the %AppData% directory
Enabling the 'hidden' option for recently created files
DNS request
Sending an HTTP GET request
Query of malicious DNS domain
Sending a TCP request to an infection source
Unauthorized injection to a system process
Enabling autorun by creating a file
Sending an HTTP POST request to an infection source
Gathering data
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
mokes xpack
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.
Result
Threat name:
SmokeLoader
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Signature
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Antivirus detection for URL or domain
Benign windows process drops PE files
C2 URLs / IPs found in malware configuration
Checks for kernel code integrity (NtQuerySystemInformation(CodeIntegrityInformation))
Checks if the current machine is a virtual machine (disk enumeration)
Creates a thread in another existing process (thread injection)
Deletes itself after installation
Detected unpacking (changes PE section rights)
Found malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
Machine Learning detection for dropped file
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Maps a DLL or memory area into another process
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
System process connects to network (likely due to code injection or exploit)
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Yara detected SmokeLoader
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1356086 Sample: 9hZ84Pwdeb.exe Startdate: 08/12/2023 Architecture: WINDOWS Score: 100 23 humydrole.com 2->23 37 Multi AV Scanner detection for domain / URL 2->37 39 Found malware configuration 2->39 41 Malicious sample detected (through community Yara rule) 2->41 43 6 other signatures 2->43 7 9hZ84Pwdeb.exe 2->7         started        10 wvbhjhd 2->10         started        12 wvbhjhd 2->12         started        signatures3 process4 signatures5 45 Detected unpacking (changes PE section rights) 7->45 47 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 7->47 49 Checks for kernel code integrity (NtQuerySystemInformation(CodeIntegrityInformation)) 7->49 57 3 other signatures 7->57 14 explorer.exe 7 3 7->14 injected 51 Antivirus detection for dropped file 10->51 53 Multi AV Scanner detection for dropped file 10->53 55 Machine Learning detection for dropped file 10->55 process6 dnsIp7 25 95.158.162.200, 49768, 49769, 49770 VIDEOSATBG Bulgaria 14->25 27 humydrole.com 179.153.102.52, 49735, 49736, 49737 CLAROSABR Brazil 14->27 19 C:\Users\user\AppData\Roaming\wvbhjhd, PE32 14->19 dropped 21 C:\Users\user\...\wvbhjhd:Zone.Identifier, ASCII 14->21 dropped 29 System process connects to network (likely due to code injection or exploit) 14->29 31 Benign windows process drops PE files 14->31 33 Deletes itself after installation 14->33 35 Hides that the sample has been downloaded from the Internet (zone.identifier) 14->35 file8 signatures9
Threat name:
Win32.Trojan.Smokeloader
Status:
Malicious
First seen:
2023-12-08 09:28:35 UTC
File Type:
PE (Exe)
Extracted files:
36
AV detection:
16 of 23 (69.57%)
Threat level:
  5/5
Verdict:
malicious
Result
Malware family:
smokeloader
Score:
  10/10
Tags:
family:smokeloader botnet:pub1 backdoor trojan
Behaviour
Checks SCSI registry key(s)
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of UnmapMainImage
Uses Task Scheduler COM API
Deletes itself
SmokeLoader
Malware Config
C2 Extraction:
http://humydrole.com/tmp/index.php
http://trunk-co.ru/tmp/index.php
http://weareelight.com/tmp/index.php
http://pirateking.online/tmp/index.php
http://piratia.pw/tmp/index.php
http://go-piratia.ru/tmp/index.php
Unpacked files
SH256 hash:
a1e98eaa5d764ee7102955bdabbd99ee429c71d3c743345e8dd2ab9f4b004454
MD5 hash:
a73bdfe08696644a871d7f5907a183e5
SHA1 hash:
3c7dcc717a1c09ffc6bfa6fc62a03436c43ffeac
Detections:
SmokeLoaderStage2 win_smokeloader_a2
SH256 hash:
3d3a6fda8b811e0da21060b68b0ae7b90f626c6d21c9034f79cb379cba2c0c0b
MD5 hash:
8fbad4754f1e6b66a7fdaa8e8378eeca
SHA1 hash:
2b06401eb1399c85f88c3807b49103b69015cfe2
Malware family:
SmokeLoader
Verdict:
Malicious
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:DebuggerCheck__API
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara

File information


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

Web download

Stealc

Executable exe 3d3a6fda8b811e0da21060b68b0ae7b90f626c6d21c9034f79cb379cba2c0c0b

(this sample)

  
Delivery method
Distributed via web download

Comments