MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 05d99ea508e2cdb90354fd76cc1807fcf1cfd533bc3652eb7bfbb93ec701994e. 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



Smoke Loader


Vendor detections: 8


Intelligence 8 IOCs YARA 1 File information Comments

SHA256 hash: 05d99ea508e2cdb90354fd76cc1807fcf1cfd533bc3652eb7bfbb93ec701994e
SHA3-384 hash: 555fcacbd9cb780f82c928b2b4cf75193b5d8aec832d7cbd454af41a544ac10c6b7ee6ae97e9d972a2c38e19bc9bfda0
SHA1 hash: 90b9954b820f409ab088b5aa90b98e108414e158
MD5 hash: ec56dfc73215179dcd26dd36e8d143d6
humanhash: lima-whiskey-venus-black
File name:melo.jpg
Download: download sample
Signature Smoke Loader
File size:386'560 bytes
First seen:2020-10-16 11:59:33 UTC
Last seen:2020-10-16 12:52:32 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 712f4a29c405ecb576101d367b2180fb (14 x Smoke Loader, 2 x AZORult, 1 x Formbook)
ssdeep 6144:9of7DeNUSfGgHCU/2McdfoI/ZX0rYfCzuCCMQZN/OdnFQ8+uXNvxsCtrEKQXb:cYV6MorX7qzuC3QHO9FQgd5sCtIL
Threatray 52 similar samples on MalwareBazaar
TLSH 278412801AD2DD7AC09523B8D83BDC90682278B1CFD43B5A4789F52EB876787E40795F
Reporter Marco_Ramilli
Tags:Smoke Loader

Intelligence


File Origin
# of uploads :
2
# of downloads :
83
Origin country :
n/a
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
DNS request
Sending a custom TCP request
Sending a UDP request
Creating a file
Creating a file in the %temp% directory
Creating a process from a recently created file
Creating a process with a hidden window
Launching a process
Deleting a recently created file
Sending an HTTP GET request
Creating a file in the %AppData% subdirectories
Enabling the 'hidden' option for recently created files
Connection attempt
Sending an HTTP POST request
Reading critical registry keys
Setting browser functions hooks
Stealing user critical data
Unauthorized injection to a system process
Enabling autorun by creating a file
Unauthorized injection to a browser process
Result
Threat name:
SmokeLoader
Detection:
malicious
Classification:
troj.spyw.evad.mine
Score:
100 / 100
Signature
Antivirus / Scanner detection for submitted sample
Benign windows process drops PE files
Binary is likely a compiled AutoIt script file
Bypasses PowerShell execution policy
Changes memory attributes in foreign processes to executable or writable
Connects to a pastebin service (likely for C&C)
Creates a thread in another existing process (thread injection)
Found strings related to Crypto-Mining
Hides that the sample has been downloaded from the Internet (zone.identifier)
Hijacks the control flow in another process
Injects a PE file into a foreign processes
Injects code into the Windows Explorer (explorer.exe)
Malicious sample detected (through community Yara rule)
Maps a DLL or memory area into another process
Multi AV Scanner detection for submitted file
Overwrites code with unconditional jumps - possibly settings hooks in foreign process
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Mail credentials (via file access)
Writes to foreign memory regions
Yara detected SmokeLoader
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 299205 Sample: melo.jpg Startdate: 16/10/2020 Architecture: WINDOWS Score: 100 71 Malicious sample detected (through community Yara rule) 2->71 73 Antivirus / Scanner detection for submitted sample 2->73 75 Multi AV Scanner detection for submitted file 2->75 77 5 other signatures 2->77 11 melo.exe 14 2->11         started        16 jetbgrct.exe 2->16         started        process3 dnsIp4 69 paste.ee 104.18.48.20, 443, 49727, 49731 CLOUDFLARENETUS United States 11->69 59 C:\Users\user\AppData\Local\...\HgvQTklIl.ps1, ASCII 11->59 dropped 109 Binary is likely a compiled AutoIt script file 11->109 18 powershell.exe 25 11->18         started        20 conhost.exe 16->20         started        file5 signatures6 process7 process8 22 powershell.exe 15 16 18->22         started        26 conhost.exe 18->26         started        dnsIp9 65 192.168.2.1 unknown unknown 22->65 67 paste.ee 22->67 103 Writes to foreign memory regions 22->103 105 Injects a PE file into a foreign processes 22->105 28 MSBuild.exe 22->28         started        31 MSBuild.exe 22->31         started        signatures10 process11 signatures12 107 Maps a DLL or memory area into another process 28->107 33 explorer.exe 5 28->33 injected process13 dnsIp14 61 melonco.com 45.60.97.17, 49746, 80 INCAPSULAUS United States 33->61 63 www.msftncsi.com 33->63 57 C:\Users\user\AppData\...\jetbgrct.exe, PE32 33->57 dropped 79 Benign windows process drops PE files 33->79 81 Injects code into the Windows Explorer (explorer.exe) 33->81 83 Writes to foreign memory regions 33->83 85 Hides that the sample has been downloaded from the Internet (zone.identifier) 33->85 38 explorer.exe 33->38         started        41 explorer.exe 33->41         started        43 explorer.exe 33->43         started        45 9 other processes 33->45 file15 signatures16 process17 signatures18 87 Overwrites code with unconditional jumps - possibly settings hooks in foreign process 38->87 89 Hijacks the control flow in another process 38->89 91 Changes memory attributes in foreign processes to executable or writable 38->91 47 mogNZAFnNQZvgZ.exe 38->47 injected 49 mogNZAFnNQZvgZ.exe 38->49 injected 93 Writes to foreign memory regions 41->93 95 Maps a DLL or memory area into another process 41->95 97 Creates a thread in another existing process (thread injection) 41->97 51 mogNZAFnNQZvgZ.exe 41->51 injected 53 sihost.exe 43->53 injected 55 taskhostw.exe 43->55 injected 99 Tries to steal Mail credentials (via file access) 45->99 101 Tries to harvest and steal browser information (history, passwords, etc) 45->101 process19
Threat name:
Win32.Trojan.SmokeLoader
Status:
Malicious
First seen:
2020-10-16 12:00:09 UTC
File Type:
PE (Exe)
Extracted files:
51
AV detection:
25 of 29 (86.21%)
Threat level:
  5/5
Result
Malware family:
smokeloader
Score:
  10/10
Tags:
trojan backdoor family:smokeloader
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
Drops file in System32 directory
Suspicious use of SetThreadContext
Maps connected drives based on registry
Blacklisted process makes network request
SmokeLoader
Malware Config
C2 Extraction:
http://melonco.com/1/
Unpacked files
SH256 hash:
05d99ea508e2cdb90354fd76cc1807fcf1cfd533bc3652eb7bfbb93ec701994e
MD5 hash:
ec56dfc73215179dcd26dd36e8d143d6
SHA1 hash:
90b9954b820f409ab088b5aa90b98e108414e158
SH256 hash:
d54903b38d34bec267ee28083838f4676da618f194dd2f53fcc5a5554d1a6b0c
MD5 hash:
40d51ea0282b74333b94049bdc89bfe4
SHA1 hash:
be829a86ee216dbea1694900fe7d909c5e316cc3
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:suspicious_packer_section
Author:@j0sm1
Description:The packer/protector section names/keywords
Reference:http://www.hexacorn.com/blog/2012/10/14/random-stats-from-1-2m-samples-pe-section-names/

File information


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

Comments