Malicious PDF — malware analysis report

Static analysis result for SHA-256 d2ed524cdd57f0b0…

MALICIOUS

PDF

39.3 KB Authoring application: PDFBox First seen: 2020-09-24
MD5: d0be1762c4810a93b3df45f472a2e0c6 SHA-1: 21106fb3ab2b70da272044fcacfd60655fa18a54 SHA-256: d2ed524cdd57f0b02effb0f46c665164c08a30ee511d89d8e1ff575cce96a99b
192 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded links to external PDF files, a technique often used for SEO manipulation or to host malicious payloads. The ClamAV detection and ML classifier strongly indicate malicious intent, likely related to phishing or malware distribution. No scripts were extracted, but the sheer volume of suspicious URLs points to a coordinated effort to distribute harmful content.

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://fiveandlime.com/uploads/1/3/0/4/130435772/notisagakikibugidenu.pdf In PDF document text
    • http://treykneller.com/uploads/1/3/0/3/130323616/televezuvewugixulek.pdfIn PDF document text
    • http://ryanbergeronvoice.com/uploads/1/3/0/6/130604327/vupovesofit.pdfIn PDF document text
    • http://ventadeterrenosycasas.net/uploads/1/3/0/2/130287813/623098.pdfIn PDF document text
    • http://needagoodcry.com/uploads/1/3/0/3/130324030/pixozarol.pdfIn PDF document text
    • http://pricewaterhousecoopers.us/uploads/1/3/0/6/130604378/ec9fde9.pdfIn PDF document text
    • http://quirkytowers.com/uploads/1/3/0/2/130288326/fefeb_pazizi_sinefowimu.pdfIn PDF document text
    • http://www.ianosventures.com/uploads/1/3/0/2/130270866/7d0fe95b3b.pdfIn PDF document text
    • http://calgaryruralmedicine.ca/uploads/1/3/0/2/130289294/b85c7264.pdfIn PDF document text
    • http://radiantsoulrecords.com/uploads/1/3/0/7/130740148/dabezolalimole-tijawexafezanep.pdfIn PDF document text
    • http://passouthundtraning.com/uploads/1/3/0/5/130543568/xokivujijex.pdfIn PDF document text
    • http://sarahchapple.com/uploads/1/3/0/7/130738741/felubonikorume-fapadovut-logige.pdfIn PDF document text
    • http://tjsmissionoutreach.org/uploads/1/3/0/5/130550930/b008d734.pdfIn PDF document text
    • http://shinnkelloggllc.com/uploads/1/3/0/7/130775723/2c58b078.pdfIn PDF document text
    • http://schoolyearbook.pics/uploads/1/3/0/4/130436307/6997683.pdfIn PDF document text
    • http://senioreducationresource.com/uploads/1/3/0/7/130776503/7607886.pdfIn PDF document text
    • http://brakepadprices.com/uploads/1/3/0/5/130547078/541b19138b50988.pdfIn PDF document text
    • http://interventionswithasmile.com/uploads/1/3/0/6/130639849/lemabe-rewafile-xonubegiv-lasivawitare.pdfIn PDF document text
    • http://sewagebackup.com/uploads/1/3/0/5/130590366/1e053a4490.pdfIn PDF document text
    • http://whsmithinternational.com/uploads/1/3/0/4/130435783/2159338.pdfIn PDF document text
    • http://hawthorneblossoms.com/uploads/1/3/0/7/130775589/5423055.pdfIn PDF document text
    • http://www.poppymcpherson.com/uploads/1/3/0/7/130775263/risovewogopale.pdfIn PDF document text
    • http://culturallyresponsivesustainedteaching.com/uploads/1/3/0/6/130622007/vixiwojilu_lupomexezesov_digivule_tatezeza.pdfIn PDF document text
    • http://pnxpartners.com/uploads/1/3/0/5/130551517/5cc9b2d4184.pdfIn PDF document text
    • http://peacewillowapparel.com/uploads/1/3/0/6/130639334/ea8dfc03.pdfIn PDF document text
    • http://host237.carmichaelnl.com/uploads/1/3/0/7/130776081/130776081.html#acuerdo+de+paris+cambio+climatico+resumenIn PDF document text

Related samples 7

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_off000034e8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x34E8 8404 bytes
SHA-256: f59b40eeac88851f71a56c44900a93700397f3ff6225dc3d9857979ea1511749

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