Malicious PDF — malware analysis report

Static analysis result for SHA-256 b3422a44cdf9b21a…

MALICIOUS

PDF

43.2 KB Created: 2020-04-02 11:41:58 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6) First seen: 2020-09-04
MD5: d13607fc4fb868e718b7c3230955b4db SHA-1: 6b864c84f5e8736b11ff6de5df34cb36c30be502 SHA-256: b3422a44cdf9b21a7a2a3fa7c5e125a6d1bdfa3a3a82a94aa740b05774144e12
136 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF contains a large number of external links, many of which are structured as SEO-optimized PDF documents. The document body and heuristics indicate a lure related to bank routing numbers, suggesting a phishing or business email compromise attempt. The embedded links likely lead to further malicious content or phishing pages.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • 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.
  • Payment redirection / bank-detail change lure high SE_PAYMENT_REDIRECT_LURE
    Document describes new or changed bank, wire, ACH, IBAN, SWIFT, or routing instructions — a high-value business-email-compromise 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://serafinaappel.com/uploads/1/3/0/5/130588457/130588457.html#jpmorgan+chase+bank+routing+number+nyc PDF link annotation
    • http://studioprojektpolska.pl/uploads/1/3/0/5/130551418/poloz-farelumodaput-vitafile-telodagod.pdfIn PDF document text
    • http://jakecharronmusic.com/uploads/1/3/0/6/130621457/lenikupumagitowuze.pdfIn PDF document text
    • http://burbankbees.com/uploads/1/3/0/9/130969188/gezapafexeluki-rugamamipu-gejejokofam.pdfIn PDF document text
    • http://tovalane.com/uploads/1/3/0/5/130547728/juxavijidikum-daxowu-zawegisovavo.pdfIn PDF document text
    • http://restaurant-mexicain.ca/uploads/1/3/0/7/130776247/fekebizov-leferonulexav-kebunu.pdfIn PDF document text
    • http://jobs-kuechenhandel.net/uploads/1/3/0/7/130739852/surugapoxax.pdfIn PDF document text
    • http://skjenkinswriter.com/uploads/1/3/0/5/130545627/rogipebezad.pdfIn PDF document text
    • http://dennisoreilly.net/uploads/1/3/0/7/130775688/xigelijanigoji-vizatixawu.pdfIn PDF document text
    • http://connectedsystems.io/uploads/1/3/0/8/130874218/3201393.pdfIn PDF document text
    • http://renluft.net/uploads/1/3/0/5/130589322/zezunifavipimuz_rujiguko_kanomatonure.pdfIn PDF document text
    • http://farming4change.com/uploads/1/3/1/4/131410090/6166163.pdfIn PDF document text
    • http://newearthwarrior.org/uploads/1/3/0/7/130775292/6892216.pdfIn PDF document text
    • http://rachelepperson.com/uploads/1/3/1/1/131164021/8706846.pdfIn PDF document text
    • http://radioupmx.com/uploads/1/3/1/0/131070318/a5c44.pdfIn PDF document text
    • http://therenewyouprogramme.com/uploads/1/3/0/3/130313561/5f9716035.pdfIn PDF document text
    • http://wwwzhenglaimingfineart.com/uploads/1/3/0/6/130621322/fevidobowawi_dekonudalamosi_vuxesupofifixu.pdfIn PDF document text
    • http://coker-counseling.com/uploads/1/3/0/6/130639143/7815287.pdfIn PDF document text
    • http://photosbygayle.info/uploads/1/3/0/8/130874635/kuwogem-pajam-zidegisus-nirufe.pdfIn PDF document text
    • http://baby-gift-bundle.com/uploads/1/3/0/6/130620602/joxunitejojul.pdfIn PDF document text
    • http://stantonoptometry.com/uploads/1/3/0/2/130288932/fozipu.pdfIn PDF document text
    • http://oasistankservices.com/uploads/1/3/0/2/130291485/2d22c.pdfIn PDF document text
    • http://thehottestmusic.com/uploads/1/3/0/9/130969990/fuborinadul.pdfIn PDF document text
    • http://hagahlife.com/uploads/1/3/0/4/130483390/2aad91fa5cf571d.pdfIn PDF document text
    • http://dreamlandunicorns.com/uploads/1/3/1/3/131383790/womugozogatamin.pdfIn PDF document text
    • http://ogino-mpe-lab.dana-farber.org/uploads/1/3/1/4/131453618/xujudoreteka.pdfIn 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

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_off00007f5c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7F5C 8108 bytes
SHA-256: 41595f3e8e104ecaa3dfb319a0b0b2363959ac996d72369bc71b1176ca736d22

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