Malicious PDF — malware analysis report

Static analysis result for SHA-256 e8f284f56bdef96b…

MALICIOUS

PDF

42.2 KB Created: 2020-08-23 23:47:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 1be9d958b8d8533c1eaa7c60ec932eba SHA-1: 3e60a0b74fb77c57d24ee6973256f30dd403fcff SHA-256: e8f284f56bdef96b6f644f8943984c253b8c923a205caeddd16bd3ab1f66b989
194 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'https://ttraff.com/pify?keyword=flubber+tamil+hd+movie'. Additionally, it exhibits characteristics of a PDF link farm, with numerous embedded links, many hosted on Shopify. The ML classifier strongly flagged this PDF as malicious. The document body, though heavily obfuscated, contains the same malicious URL, reinforcing the lure.

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=flubber+tamil+hd+movie In PDF document text
    • http://files.poehaku.com/uploads/1/3/1/6/131607239/ab7f23f.pdfIn PDF document text
    • http://fedorahosted.org/lohitIn 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/1/0430/1576/6177/files/45167033483.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/nezax.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0461/9406/5557/files/que_es_el_botulismo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8850/3203/files/79603636504.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5024/5028/files/mawafefodijezifodedi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9679/2478/files/arx_fatalis_stat_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/1470/6584/files/zawefavesuwadefitemebipod.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7100/5082/files/xuvisakozonatejo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0457/4652/0220/files/new_testament_bible_tagalog_version_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3033/1039/files/79047196859.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5049/9222/files/refumodutadavujam.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 8

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

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off00005b45.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x5B45 9552 bytes
SHA-256: ec1e96938bdedcd9d8e047cf832f83ab743bee8ebffffa71638a6b0e5c4d0a93
font_00_sfnt_off00004a4c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4A4C 5044 bytes
SHA-256: 5fdbc4e20eec37f4c6696c8cd451c04723c42339228e1b23b845b0f290e1d11c
font_02_sfnt_off00007672.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7672 10540 bytes
SHA-256: 714356db0a74d1c9fa638994ddde17e95744a94960b75e750ad48f440ccaaf5b

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