Malicious PDF — malware analysis report

Static analysis result for SHA-256 84e38ba54072d976…

MALICIOUS

PDF

46.2 KB Created: 2020-07-21 21:59:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: a8f5e608c7552652da636849a855fc68 SHA-1: b838123d2953136749490e1fb70ec7a8b2194372 SHA-256: 84e38ba54072d97605a32993d0b2004baadf1ae2fa3b43a8d8577e46704ca7ba
194 Risk Score

Malware Insights

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

The PDF contains multiple heuristics indicating malicious redirection and a link farm, pointing to known malicious redirector infrastructure. The embedded URLs, particularly 'https://ttraff.com/pify?keyword=bulk+density+of+sand+test+pdf', are flagged as malicious redirectors. The document body, though heavily obfuscated, suggests a lure related to 'bulk density of sand test pdf', likely a pretext for phishing or malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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 https://ttraff.com/pify?keyword=bulk+density+of+sand+test+pdf In PDF document text
    • http://files.truvisioncolombia.com/uploads/1/3/1/3/131398075/kixonabunenototekoxu.pdfIn PDF document text
    • http://files.hesedyoga.com/uploads/1/3/1/4/131406036/genukulam-kugoxunidub-gojivonep.pdfIn PDF document text
    • http://files.yburban.com/uploads/1/3/0/7/130740207/44a2a62723.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5857/7046/files/mojudaroguf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5369/5647/files/nanulegu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8158/1209/files/7966927168.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2213/9041/files/47719246331.pdfIn PDF document text
    • https://wotidabupef.files.wordpress.com/2020/07/kifelo.pdfIn PDF document text
    • https://gugepumume.files.wordpress.com/2020/07/70475278699.pdfIn PDF document text
    • https://gimasesagix.files.wordpress.com/2020/07/wosomelizowafajapetug.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3316/5986/files/buxexizevupebopuvobale.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5111/3883/files/sezinobogazojisilagi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/19252536586.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2756/9576/files/tamulumasud.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6759/6184/files/mesapixowekos.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5411/2672/files/89150817431.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0255/1716/files/48339000129.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/4677/9552/files/daxapenisajo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/92283418618.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://scripts.sil.org/OFLIn PDF document text

Related samples 3

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_off000076a3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x76A3 5036 bytes
SHA-256: 0009bb626aed31486e46950a13e67af223beaf789b17a7e525fc968acfa433f3
font_01_sfnt_off000087e0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x87E0 10404 bytes
SHA-256: 609594919e99bc3f0e98d905d0fdb27cd86d5cb59593a8564af7e95c2fb5d076

Open this report in the interactive analyzer, or submit your own file for analysis.