Malicious PDF — malware analysis report

Static analysis result for SHA-256 9ec36f61c033db36…

MALICIOUS

PDF

58.3 KB Created: 2020-08-18 21:16:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 67145f4e1873e5aa1c3eeca21ef4cc55 SHA-1: faa254a09a7258a16f436bffb768711e753dbce1 SHA-256: 9ec36f61c033db36c3082c48faaf509e21d2309af79f2aa2b4c0f9f68fba9797
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a heuristic firing for a malicious redirector link, pointing to 'https://ttraff.com/pify?keyword=awadhesh+premi+bhojpuri+song+dj'. Additionally, it exhibits characteristics of a PDF link farm, with numerous links, including one to 'https://cdn.shopify.com/s/files/1/0432/3885/0719/files/hearthstone_open_all_packs.pdf'. The document body, though heavily obfuscated, contains the same malicious URL. The primary attack vector appears to be social engineering through a deceptive link.

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=awadhesh+premi+bhojpuri+song+dj In PDF document text
    • http://files.manuluwrites.com/uploads/1/3/1/8/131856170/3312738.pdfIn PDF document text
    • http://kelep.kenaisatphone.com/uploads/1/3/1/0/131070450/4a90b.pdfIn PDF document text
    • http://gowol.neurologysymposium.com/uploads/1/3/1/6/131607305/mepilo-tuzeluninisab-luzibebiwiboj-buzarajapasapuw.pdfIn PDF document text
    • http://bibunil.mrbobsullivan.com/uploads/1/3/1/3/131384429/662ee76183.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://fedorahosted.org/lohitIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3885/0719/files/hearthstone_open_all_packs.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8734/0454/files/tevutinutijukigimixated.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4947/6518/files/71791879672.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0294/3909/files/vubapiguzamivevu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0449/7191/7471/files/blessed_assurance_piano_sheet_music.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/9320/2846/files/miopia_astigmatismo_hipermetropia.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/1872/1192/files/kadaxaworenuwezero.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0084/7780/files/arbitraje_internacional.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/7956/3432/files/flash_share_for_android.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0449/2309/3147/files/college_physics_8th_edition_solutions_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9932/4580/files/64195945428.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 5

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000058b5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x58B5 5636 bytes
SHA-256: c373dec9868424bb2f492442de1e8005fb1854aa722632f01faa330b5399be7e
font_01_sfnt_off00006bc1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6BC1 2424 bytes
SHA-256: 68503592a9b13d04c66d91ddf83a4f791ee3d30ad04418e07f32f6de173285b6
font_02_sfnt_off00007543.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7543 14948 bytes
SHA-256: 2b3c80c592585e5a7dd47d99644a4b44a0c94b06c6cc8303384072e3b05b6d9b
font_03_sfnt_off0000a3ca.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA3CA 18888 bytes
SHA-256: 7ec41ace99873c983950e7db562a03f8d278ffc788b97e073c4aa8e277506f1f
font_04_sfnt_off0000c1d7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC1D7 6660 bytes
SHA-256: cfeeb435160d60791f80d5bbbc9ee2a11b94784f4bedbe1fc234d7a811780bfb