Malicious PDF — malware analysis report

Static analysis result for SHA-256 c5d35370d765f59a…

MALICIOUS

PDF

40.5 KB Authoring application: Inkscape First seen: 2020-09-24
MD5: b5e9761eed3c82605af37b5274596698 SHA-1: 85731c297ebb2d6b5139ddaf1f79f584f06fa145 SHA-256: c5d35370d765f59ac59438b921b95b2680d2e4bbe5263c712342fd4ef2d97f0a
192 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious File

The PDF file contains a large number of embedded URLs, as indicated by the PDF_SEO_LINK_FARM heuristic. These URLs likely lead to further malicious content, potentially phishing or malware. The ClamAV detection and ML classifier strongly suggest malicious intent. The document body is heavily obfuscated and contains a large number of URLs, reinforcing the link farm attack pattern.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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.
  • PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINK
    PDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
  • 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://cardiffhomedesign.com/uploads/1/3/0/2/130291555/pupimu.pdf In PDF document text
    • http://cleaningservicesresidentialcommercial.com/uploads/1/3/0/6/130620792/delivijirexi_napozere_zidikos.pdfIn PDF document text
    • http://ianburnleystudio.net/uploads/1/3/0/6/130621847/2970352.pdfIn PDF document text
    • http://juridicorapido.com/uploads/1/3/0/3/130324386/3959787.pdfIn PDF document text
    • http://cmma2017.info/uploads/1/3/0/5/130540926/6440311.pdfIn PDF document text
    • http://awe-struck.net/uploads/1/3/0/8/130873976/vejelijopakuj.pdfIn PDF document text
    • http://miamitownshiphealthandwellnesscenter.com/uploads/1/3/0/6/130621486/7f65025ee202729.pdfIn PDF document text
    • http://oconnorcoachingservices.com/uploads/1/3/0/3/130379377/941d9e7.pdfIn PDF document text
    • http://quickbongo.com/uploads/1/3/0/7/130775624/794596.pdfIn PDF document text
    • http://mybowpeepboutique.com/uploads/1/3/0/7/130775363/xitatira-legenaxin.pdfIn PDF document text
    • http://cococochran.com/uploads/1/3/0/7/130738996/wugusulodepuwejunavo.pdfIn PDF document text
    • http://mrsdsmithsthirdgrade.com/uploads/1/3/0/2/130272985/filofo_gufoxevute_gozaxix_felemusil.pdfIn PDF document text
    • http://calljasonmyers.com/uploads/1/3/0/6/130639786/bakaze.pdfIn PDF document text
    • http://pediapeople.net/uploads/1/3/0/6/130603946/62f0620f569.pdfIn PDF document text
    • http://benjaminsmithmusic.net/uploads/1/3/0/2/130287862/3697950.pdfIn PDF document text
    • http://redriverministries.org/uploads/1/3/0/6/130639780/719076.pdfIn PDF document text
    • http://michaelsebastiani.com/uploads/1/3/0/3/130323738/fenulewamaki_kudexuxidobe_lixaxez.pdfIn PDF document text
    • http://overcomeporn.org/uploads/1/3/0/7/130738666/5689d676b5ca7d.pdfIn PDF document text
    • http://diegeticstrands.com/uploads/1/3/0/6/130620673/suririvowewila.pdfIn PDF document text
    • http://tarotofthehumanexperience.com/uploads/1/3/0/2/130273743/kamirol-pojorodamin-jarumax.pdfIn PDF document text
    • http://newresume2019.com/uploads/1/3/0/4/130476738/8648448.pdfIn PDF document text
    • http://chewoncakes.com/uploads/1/3/0/7/130740265/130740265.html#2019+nba+draft+results+espnIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003ca4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3CA4 8204 bytes
SHA-256: 253156df52d85bd0d7a8b4524792fccd183450e624c42754476ab0e5e307d2af

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