Malicious PDF — malware analysis report

Static analysis result for SHA-256 5c2ab01da705f087…

MALICIOUS

PDF

51.5 KB Created: 2020-08-20 09:50:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: b379d41481a2e87e8ed7541fc18a56f7 SHA-1: ae248f14bf4260246da00b998cf415d62b2901ee SHA-256: 5c2ab01da705f087e9e957104b5724533792419e543c16c43d1f1774583adaaa
194 Risk Score

Malware Insights

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

The PDF contains a link farm and a redirector URL, indicating a phishing or scam attempt. The document body, though heavily obfuscated, contains the lure text 'Amour sucre episode 23 guide' and the malicious redirector URL. The ML classifier strongly flagged this PDF as malicious, and multiple heuristics confirm the presence of malicious redirector links.

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=amour+sucre+episode+23+guide In PDF document text
    • http://files.smiling-dog-farm.com/uploads/1/3/1/3/131379034/3380568.pdfIn PDF document text
    • http://zajarig.thegooddogfoodbank.com/uploads/1/3/1/3/131380213/ruverene-muweb-gozapuvadusenuz.pdfIn PDF document text
    • http://files.ofwrealestate.com/uploads/1/3/1/4/131437194/117135786a3.pdfIn PDF document text
    • http://files.family1stdpc.com/uploads/1/3/0/9/130969440/c3c5a71.pdfIn PDF document text
    • http://fontawesome.iohttp://fontawesome.io/license/In 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/1/0434/0639/3496/files/smokey_and_the_bandit_soundtrack_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8865/0142/files/aritmatika_dasar.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/6508/7902/files/vafezu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8909/3018/files/bed_sheet_and_quilt_cover_set.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4925/4041/files/49418361992.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0786/8060/files/29162092436.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6240/2965/files/fivakenaradegusow.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/3956/1630/files/24041819106.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/1283/8808/files/lens_flare_png_pack.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6280/4136/files/online_to_word_editable_format.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1198/0964/files/xukopebuvatomufazemot.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0896/6312/files/20058774073.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0577/0909/files/51673308418.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3051/9709/files/avatar_musik_pc.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8297/3346/files/kuzavutos.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006b1a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6B1A 2364 bytes
SHA-256: 6088cac1e70cde7d7fcf28e08fccbfbf422b9173f6523f49d91374c4389c1eb1
font_01_sfnt_off00007514.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7514 5436 bytes
SHA-256: 2b79d1e9d2519a8215f426ca9658435f6e5882735eb8c862bb1138a493310df6
font_02_sfnt_off00008780.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8780 10352 bytes
SHA-256: 22ff86eee214b03aba96e9913b8924b3711c69b456bf2c2e70698df674193419
font_03_sfnt_off0000ab25.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAB25 16144 bytes
SHA-256: 764fe263e68fd20aff2bbd96e69f5a400d440299d02096befa162391f913c7cf