Malicious PDF — malware analysis report

Static analysis result for SHA-256 dba3f07b97c50209…

MALICIOUS

PDF

53.5 KB Created: 2020-04-14 20:33:27 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6) First seen: 2020-08-25
MD5: 3db061dff2cd97a0ec5ae43871ab8830 SHA-1: 6f2af397d3739d2532f3dc0d2634cffd8d326e5e SHA-256: dba3f07b97c502091921bc66a946ff846dc64148034e7cd31ab128728cf25613
136 Risk Score

Malware Insights

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

The PDF contains a large number of external links, many of which are numerically or generically named, suggesting a link farm designed to attract traffic or host malicious content. The heuristics indicate this is a classic advance-fee fraud or payment redirection lure, aiming to trick users into financial scams. The document body, though heavily obfuscated, contains references to 'American funds' and 'breakpoints', aligning with the scam lures.

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://r2medtechregulatoryclinicalqualityllc.com/uploads/1/3/0/2/130289185/130289185.html#american+funds+breakpoints+pdf PDF link annotation
    • http://drjonhaag.com/uploads/1/3/1/4/131406821/9049048.pdfIn PDF document text
    • http://sevenseasuniversity.com/uploads/1/3/1/4/131408567/6382913.pdfIn PDF document text
    • http://doulaemily.com/uploads/1/3/0/3/130323381/vovidamebu.pdfIn PDF document text
    • http://joy-dogs.com/uploads/1/3/0/5/130539035/619417.pdfIn PDF document text
    • http://happyhealthycyster.com/uploads/1/3/0/7/130739624/kafafim.pdfIn PDF document text
    • http://anatoly-nikolsky.com/uploads/1/3/0/8/130874349/7627410.pdfIn PDF document text
    • http://originalwoodfloorma.com/uploads/1/3/0/7/130775588/e5ba1de.pdfIn PDF document text
    • http://adultingisforkids.blog/uploads/1/3/1/0/131070805/kages-pukijoneb-benamonidiraxom.pdfIn PDF document text
    • http://senyalnizdegilsin.com/uploads/1/3/0/4/130491757/laladixiwadotojifovo.pdfIn PDF document text
    • http://blasrphotos.com/uploads/1/3/0/5/130589160/jikugijosarasuton.pdfIn PDF document text
    • http://cvillelogo.com/uploads/1/3/0/7/130775715/564e077a.pdfIn PDF document text
    • http://wineboy.shop/uploads/1/3/0/8/130813609/gewatinatux_fixusoku_nukeximomuv.pdfIn PDF document text
    • http://matthew-zimmer.com/uploads/1/3/1/4/131437864/8644f.pdfIn PDF document text
    • http://miusbeautyshop.net/uploads/1/3/0/5/130589354/dowidiv.pdfIn PDF document text
    • http://africastrategies.com/uploads/1/3/0/4/130476401/kuzewavitige.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Related samples 8

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

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00009156.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9156 8548 bytes
SHA-256: 10a4e58cfbd25c6c123ab1cb8d35c67f195896588f8a5e7dbc442237cc8b7f8c
font_01_sfnt_off0000b20b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB20B 16232 bytes
SHA-256: 3974891db8a4ec8ec2d7bd6096109588069a4504a1a2c6a6a63e29e83c6c02e0

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