Malicious PDF — malware analysis report

Static analysis result for SHA-256 9ab7b11d792f6e82…

MALICIOUS

PDF

52.9 KB Created: 2020-03-25 10:43:19 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6) First seen: 2026-05-08
MD5: 40d74bcf7f7a4a5d53a30c4867315bc1 SHA-1: 6c176fb22fb5bdc3981b3a7dbbd0f06a379593a0 SHA-256: 9ab7b11d792f6e82236e3242a5316eb02d8fa3bd3e18fb7947d0ba471ea786e8
96 Risk Score

Malware Insights

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

The PDF document contains a large number of external links, a common tactic for SEO spam or to redirect users to malicious sites. The document body text, though partially corrupted, includes a URL that appears to be a lure for song downloads. No scripts were extracted from this sample, limiting the ability to determine further payload delivery or persistence mechanisms. The primary attack vector appears to be social engineering through link manipulation.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

Heuristics 4

  • 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.
  • External URI info PDF_URI
    PDF contains an external URL action
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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://fredheatingac.com/uploads/1/3/0/7/130738803/130738803.html#descargar+la+canci%C3%B3n+de+espinoza+paz+tomando+ando PDF link annotation
    • http://homespryte.com/uploads/1/3/0/9/130969019/8021136.pdfIn PDF document text
    • http://watersportsinkorea.com/uploads/1/3/0/7/130738576/larezomozipuxe.pdfIn PDF document text
    • http://russianair.com/uploads/1/3/0/5/130590456/xafolututorovof-gofirilimolu-kofike-lupesifejusujak.pdfIn PDF document text
    • http://eastpacificmarine.com/uploads/1/3/0/3/130323421/f47942.pdfIn PDF document text
    • http://yourwritewritingservice.us/uploads/1/3/0/7/130775531/nudosegarete.pdfIn PDF document text
    • http://afreshcoat.org/uploads/1/3/0/7/130776046/7024239.pdfIn PDF document text
    • http://notaiobrunzo.it/uploads/1/3/0/6/130604656/69c65.pdfIn PDF document text
    • http://www.zotoyi.net/uploads/1/3/1/1/131163879/2102757.pdfIn PDF document text
    • http://mrnicklawrence.com/uploads/1/3/0/4/130488968/biwuj-riwovubofode.pdfIn PDF document text
    • http://flynntodd.blog/uploads/1/3/0/5/130590158/619aac5ecc58.pdfIn PDF document text
    • http://casaarmonia.net/uploads/1/3/0/5/130550885/wobimupuxivezej-fevowigeta-finak.pdfIn PDF document text
    • http://astrologyandcrystallighttherapy.com/uploads/1/3/0/4/130435947/7303775.pdfIn PDF document text
    • http://thomasemyers.com/uploads/1/3/0/4/130489248/derekavuj.pdfIn PDF document text
    • http://mta-sts.mx.janewman.com/uploads/1/3/0/5/130539660/6708ae353a3.pdfIn PDF document text
    • http://casualcardtable.com/uploads/1/3/0/6/130639074/0fdbf14a63d02.pdfIn PDF document text
    • http://spigotscience.com/uploads/1/3/0/6/130603980/zesogubajogimiw.pdfIn PDF document text
    • http://mta-sts.mail.lhaconsult.com/uploads/1/3/0/5/130541221/jirixokukojasuri.pdfIn PDF document text
    • http://rebeccahelm.org/uploads/1/3/0/7/130740596/xulebogowudesor.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://www.adobe.com/).NotoIn PDF document text
    • http://www.google.com/get/noto/http://www.adobe.com/type/ThisIn PDF document text
    • http://scripts.sil.org/OFLNotoIn PDF document text
    • https://fedoraproject.org/wiki/Licensing/LiberationFontLicenseIn PDF document text
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000072e8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x72E8 9584 bytes
SHA-256: e3b2584b4710d3dc1b448d23c9c981fb277383e02bdc5639cfe48ae164eb7c20
font_01_sfnt_off000094d1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x94D1 4492 bytes
SHA-256: 1610adf967ed1c60e664a9da54417e8b6db48f75c20afc41eebab2aa002651fc
font_02_sfnt_off0000a31a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA31A 2896 bytes
SHA-256: f9e6f3331e0d75428486aaaa038a43d9187e1298879152bd13b55cd3313a641e
font_03_sfnt_off0000ad71.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAD71 16036 bytes
SHA-256: 779aa567746046747dac965df7fdfb06ff632674a0a99ce247a327bf89f0fa63