Malicious PDF — malware analysis report

Static analysis result for SHA-256 937aa1e847d522bb…

MALICIOUS

PDF

55.0 KB Created: 2020-08-21 06:24:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 49bbcbbb3da74fa3572e9d5fefc5677f SHA-1: 88d3ba06c46dc686ec7f20a6bb444153e866e156 SHA-256: 937aa1e847d522bb19bccc9c6935517d1cb28aabf5caab13fc366d09cf8273b7
194 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.cc/pify?keyword=bandook+chalegi+teri+dj+mix+song'. Additionally, it exhibits characteristics of a PDF link farm, with numerous external PDF links, including suspicious ones like 'http://xeneg.movequickly.eu/uploads/1/3/1/3/131383483/gimuk.pdf'. The document body, though heavily obfuscated, also contains the primary malicious URL, suggesting the document's purpose is to lure users to this external resource.

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.cc/pify?keyword=bandook+chalegi+teri+dj+mix+song In PDF document text
    • http://xeneg.movequickly.eu/uploads/1/3/1/3/131383483/gimuk.pdfIn PDF document text
    • http://files.lavendershop.org/uploads/1/3/0/8/130813648/8930624.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/1/0435/3651/5224/files/47929364187.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/32829552166.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/7279/6310/files/ctp_guide_marvel_future_fight.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2198/4166/files/73428119497.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0886/8008/files/jiveliruzapesiluzezawiwo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2530/9604/files/watufavipimujasuzuxeboged.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0688/5027/files/ya_devi_sarva_bhuteshu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0998/2107/files/jurelolufoxobi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0713/8201/files/c_piano_chords.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0448/1299/2674/files/vizix.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/lipowu.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://www.geocities.com/mitra_anirban/hobbies.htmGNUIn PDF document text
    • http://www.gnu.org/copyleft/gpl.htmRegularIn PDF document text
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005308.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5308 5612 bytes
SHA-256: 84b72ee7c01912f9975d22fe0ff9c5bce3bd2e456b6da791d525ce7f41b1eac5
font_01_sfnt_off000065ed.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x65ED 3720 bytes
SHA-256: d5ecec3e822993868ba70e247019bcdb656a9fee58d620eb93bc70658e929280
font_02_sfnt_off00007148.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7148 2528 bytes
SHA-256: fa00ca2efb3740422adce526fcbaa5037a21e39b9482affa9e7d95016e3f9ad0
font_03_sfnt_off00007c78.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7C78 14784 bytes
SHA-256: 2e2522a753dca17513a3542d47b9ee1874985fc4ba6b6bfc5613d6622bac076c
font_04_sfnt_off0000a9cf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA9CF 16168 bytes
SHA-256: bcfecb9fde4b74e4a2b692e15caf305b2988a1cfe4c6386614002e38d35feb86
font_05_sfnt_off0000bf11.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBF11 3816 bytes
SHA-256: 19655ef2c5c36af2ea81ec1e888c74146daa86caac81255a64ec898c8877a1e7