MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b1cd81ef90363936ef04a6d5cabb539bbc4a89a25b6baf6777e1a3e373455f40. 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: 7


Intelligence 7 IOCs YARA 1 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: b1cd81ef90363936ef04a6d5cabb539bbc4a89a25b6baf6777e1a3e373455f40
SHA3-384 hash: d565a2676c477e2219816d439f1fb1e05d4f05912b0b95fa0b1d7b802d3d6c7a886069a83acae67f64b84eef344e711e
SHA1 hash: a456b4113f95a2bf463636bcb5d8b43c1c1e9aab
MD5 hash: f9c643359c377852ca3b7326d7913b3a
humanhash: robin-carolina-charlie-zulu
File name:5by8.jpg
Download: download sample
Signature Smoke Loader
Create hunting rule
File size:387'072 bytes
First seen:2020-08-16 15:04:23 UTC
Last seen:2020-08-16 15:45:50 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 712f4a29c405ecb576101d367b2180fb (14 x Smoke Loader, 2 x AZORult, 1 x Formbook)
ssdeep 6144:Lof7DeNUSfGgHCU/2McdfoI/ZX0rYfCzuCCMQZN/OdnFQ8+uXNvxsCBpYu+6ZSTE:GYV6MorX7qzuC3QHO9FQgd5sCBlSTE
Threatray 1'250 similar samples on MalwareBazaar
TLSH 558412801BD2DD6AD09523B8D83B9C50682278B1CFD83B998799F51EF832B87D80755F
Reporter abuse_ch
Tags:Dofoil exe Smoke Loader


Avatar
abuse_ch
Smoke Loader payload URLs:
http://aggiegovender.co.za/images/5by8.jpg
https://paste.ee/r/WayuW

Smoke Loader C2:
http://185.35.137.147/mlp/

Intelligence

File Origin
# of uploads :
2
# of downloads :
707
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/46527/
Detection(s):
PUA.Win.Packer.Upx-48
Create hunting rule

PUA.Win.Packer.Upolyx-12
Create hunting rule

PUA.Win.Downloader.Aiis-6803892-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Launching a process
Creating a process with a hidden window
Sending a UDP request
DNS request
Sending a custom TCP request
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
Creating a file in the %temp% directory
Deleting a recently created file
Reading critical registry keys
Setting browser functions hooks
Forced shutdown of a system process
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
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad.mine
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/432333
Signature
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
Overwrites code with unconditional jumps - possibly settings hooks in foreign process
Tries to steal Mail credentials (via file access)
Writes to foreign memory regions
Yara detected SmokeLoader
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 267957 Sample: 5by8.jpg Startdate: 16/08/2020 Architecture: WINDOWS Score: 100 63 Malicious sample detected (through community Yara rule) 2->63 65 Yara detected SmokeLoader 2->65 67 Binary is likely a compiled AutoIt script file 2->67 69 3 other signatures 2->69 11 5by8.exe 2->11         started        14 dbchfveb.exe 2 2->14         started        process3 signatures4 91 Binary is likely a compiled AutoIt script file 11->91 16 powershell.exe 9 11->16         started        18 conhost.exe 14->18         started        process5 process6 20 powershell.exe 15 16 16->20         started        24 conhost.exe 16->24         started        dnsIp7 55 paste.ee 104.18.49.20, 443, 49714 CLOUDFLARENETUS United States 20->55 85 Writes to foreign memory regions 20->85 87 Injects a PE file into a foreign processes 20->87 26 MSBuild.exe 20->26         started        signatures8 process9 signatures10 89 Maps a DLL or memory area into another process 26->89 29 explorer.exe 4 26->29 injected process11 dnsIp12 57 5by80.com 74.208.236.2, 49728, 80 ONEANDONE-ASBrauerstrasse48DE United States 29->57 59 192.168.2.1 unknown unknown 29->59 61 www.msftncsi.com 29->61 53 C:\Users\user\AppData\...\dbchfveb.exe, PE32 29->53 dropped 93 Benign windows process drops PE files 29->93 95 Injects code into the Windows Explorer (explorer.exe) 29->95 97 Writes to foreign memory regions 29->97 99 Hides that the sample has been downloaded from the Internet (zone.identifier) 29->99 34 explorer.exe 29->34         started        37 explorer.exe 29->37         started        39 explorer.exe 29->39         started        41 10 other processes 29->41 file13 signatures14 process15 signatures16 71 Overwrites code with unconditional jumps - possibly settings hooks in foreign process 34->71 73 Hijacks the control flow in another process 34->73 75 Changes memory attributes in foreign processes to executable or writable 34->75 43 QfnCrDrDvmSqkkdOKsrwOKBp.exe 34->43 injected 45 QfnCrDrDvmSqkkdOKsrwOKBp.exe 34->45 injected 47 QfnCrDrDvmSqkkdOKsrwOKBp.exe 34->47 injected 77 Writes to foreign memory regions 37->77 79 Maps a DLL or memory area into another process 37->79 81 Creates a thread in another existing process (thread injection) 37->81 49 sihost.exe 39->49 injected 51 taskhostw.exe 39->51 injected 83 Tries to steal Mail credentials (via file access) 41->83 process17
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/b1cd81ef90363936ef04a6d5cabb539bbc4a89a25b6baf6777e1a3e373455f40/
Threat name:
Win32.Trojan.Povertel
Create hunting rule
Status:
Malicious
First seen:
2020-08-15 12:14:15 UTC
AV detection:
26 of 29 (89.66%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=whgyd34qgy4tn3yeu3k4vo2tto6evcnclnv26z3x4gr6g42fl5aa._file
Verdict:
malicious
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b254d7faa603b46c4c63f6d1f88d65767fb80638a000967fe527b9572b956e35
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c12927e94316183af8da2f28a16b715ba98a8f33ef846f0290434cf7ef0fdc2b
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d7a340421f260de130a285233b110130fbccd2f26f1f70fc1600bf2855073017
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Smoke Loader
+ 1'240 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
  8/10
Tags:
upx
Link:
https://tria.ge/reports/200816-v99pcpt5ms/
Behaviour
UPX packed file
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/b1cd81ef90363936ef04a6d5cabb539bbc4a89a25b6baf6777e1a3e373455f40

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
Create hunting rule
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.

Web download

Smoke Loader

Word file doc b77c4b8cabe21f2af6969482da0bf9c0f6eb31edd2add65e16c4757932076e04

Smoke Loader

Executable exe b1cd81ef90363936ef04a6d5cabb539bbc4a89a25b6baf6777e1a3e373455f40

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/433572/
  
Dropped by
MD5 dd367a27a2b86588e21cce4823b35d2c
  
Dropped by
SHA256 b77c4b8cabe21f2af6969482da0bf9c0f6eb31edd2add65e16c4757932076e04
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/46527/
  
URLhaus
https://urlhaus.abuse.ch/url/433420/

Comments