Malicious PDF — malware analysis report

Static analysis result for SHA-256 ff90c97751998048…

MALICIOUS

PDF

57.3 KB Created: 2020-08-20 22:23:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 6d377dfb080416112613aecc7a0158d4 SHA-1: d7979962d7cba6a919e30445791e385a82000c80 SHA-256: ff90c977519980488353e708f98eddd562afb28c20452413699e0ed3b64420f8
202 Risk Score

Malware Insights

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

The PDF file contains multiple embedded links, including one pointing to a known malicious redirector. The document body also contains a call-to-action phrase, suggesting a lure to trick the user into clicking the malicious link. The primary malicious URL identified is ttraff.com, which redirects to a payload. The presence of a link farm further indicates a malicious intent to distribute content or malware.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=adobe+after+effects+free++32+bit In PDF document text
    • http://lirebej.oilmyworld.net/uploads/1/3/0/7/130776644/kubotilewijeval_bodoluzegimesi_fanujabujeka_jetaxuxuxovasuz.pdfIn PDF document text
    • http://sufekuw.patriciabjorklund.com/uploads/1/3/1/1/131164250/petifuzelavimiduguw.pdfIn PDF document text
    • http://files.spiritbearservices.com/uploads/1/3/0/8/130814085/86b3ec58.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1560/2339/files/judubipurajupevidese.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/7454/9928/files/nivikakukuzakepajevip.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6240/2965/files/girl_beatles_piano_sheet_music.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2312/3100/files/44666510333.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6200/1821/files/razexakabisobo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4245/5197/files/tifoduxono.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7917/1222/files/sesoretanevofejed.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5851/1510/files/anatomi_pembuluh_darah_vena_dan_arteri.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/32506959796.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1604/5222/files/jagabaj.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
    • https://savannah.gnu.org/projects/freefont/In PDF document text
    • http://www.gnu.org/licenses/In PDF document text
    • http://www.gnu.org/copyleft/gpl.htmlIn PDF document text
    • http://scripts.sil.org/OFLIn 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 5

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006468.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6468 6440 bytes
SHA-256: 2ce5a7286efefc5aae27ce1c31b3347e159d00bd30cf97f509a0b7f7d49caffb
font_01_sfnt_off0000745d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x745D 5092 bytes
SHA-256: da3221f290347eee27d330c3cc392b3ab96e5f1f6dc997ea874611af74f80f62
font_02_sfnt_off000085b8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x85B8 14464 bytes
SHA-256: 57faddf9550f42cea40843e59d83c8c7b338ce4e3c3c68e40193c22fa11c9850
font_03_sfnt_off0000b439.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB439 16080 bytes
SHA-256: 8f6ddafd3b0ce2004b9503adf603897a58143e210ca714e8dcfcba1b249cf112
font_04_sfnt_off0000c8fc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC8FC 4324 bytes
SHA-256: 05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176

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