Malicious PDF — malware analysis report

Static analysis result for SHA-256 4de8e1bdebc8ea9c…

MALICIOUS

PDF

40.2 KB Authoring application: Soda PDF First seen: 2020-09-07
MD5: 765d3d9bc412be3ce15ffae45e0d4e2e SHA-1: bc0a817049ab72fa72ad48e31aea787953cd03ac SHA-256: 4de8e1bdebc8ea9c99c8f24fee63e6732a672a2330b668337d969c25afd2e56d
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a large number of external links to other PDF files hosted on various domains, indicating a link farm or redirection strategy. The ClamAV detection 'Pdf.Phishing.TtraffRobotInstall-7605656-0' further supports a malicious intent, likely phishing or malware distribution. No scripts were extracted from this sample, and the document body content was heavily obfuscated and truncated, limiting further analysis of the specific lure.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 3

  • ClamAV: Pdf.Phishing.TtraffRobotInstall-7605656-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.TtraffRobotInstall-7605656-0
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL http://tahoefoodservice.club/uploads/1/3/0/4/130483940/8e1791867164b.pdf In PDF document text
    • http://scarletcarnival.com/uploads/1/3/0/5/130539131/pelelo-dibunikulelal.pdfIn PDF document text
    • http://absolutefloorsllc.com/uploads/1/3/0/5/130543878/zekax-vudivunafovuj-nomunotoxuto-bagodoraxugidug.pdfIn PDF document text
    • http://raycoffee.net/uploads/1/3/0/4/130435774/88505ab3cd08fb.pdfIn PDF document text
    • http://myrole.legal/uploads/1/3/0/2/130291475/nukafova.pdfIn PDF document text
    • http://mxe.liyunalvarado.com/uploads/1/3/0/9/130969249/98e695128d2e.pdfIn PDF document text
    • http://ascleanasawhistle.net/uploads/1/3/0/2/130272573/nobeves_zasozupuvesa_mefalo.pdfIn PDF document text
    • http://summitdoulacare.com/uploads/1/3/0/2/130289427/xatixegerex.pdfIn PDF document text
    • http://kenboyerphotography.com/uploads/1/3/0/6/130620750/3829167.pdfIn PDF document text
    • http://bobsbikes.net/uploads/1/3/0/6/130639228/tebuwirebi.pdfIn PDF document text
    • http://nursesdirectllc.com/uploads/1/3/0/2/130272619/benobuxek.pdfIn PDF document text
    • http://redmethod.net/uploads/1/3/0/4/130488583/fugerelogawopuvevok.pdfIn PDF document text
    • http://succacti.com/uploads/1/3/0/6/130640000/5434142.pdfIn PDF document text
    • http://tedrabinowitzcopywriter.net/uploads/1/3/0/7/130739987/wowivemavo.pdfIn PDF document text
    • http://taylorlench.com/uploads/1/3/0/5/130589371/jafurasigutap-pemofuxig.pdfIn PDF document text
    • http://webdisk.dominicmartinez.com/uploads/1/3/0/7/130775056/pibelupofojofurupuj.pdfIn PDF document text
    • http://ofoptical.com/uploads/1/3/0/5/130546076/mezomemojeziwed.pdfIn PDF document text
    • http://trevoroc.com/uploads/1/3/0/6/130604803/mipifaxawiwoviwat.pdfIn PDF document text
    • http://mymobilephysio.com/uploads/1/3/0/7/130776499/56dbf2902.pdfIn PDF document text
    • http://www.toyota-4sale-usa.com/uploads/1/3/0/8/130814172/f7d07e49fae583c.pdfIn PDF document text
    • http://adsl-63-204-18-16.benefitplans.org/uploads/1/3/0/2/130271171/130271171.html#buteyko+breathing+while+exercisingIn PDF document text

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003d3a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3D3A 8144 bytes
SHA-256: 78869f1cf66051df5e89a1bb4ca4182958809e7cf781b1530bee35e32b484ce5