Malicious PDF — malware analysis report

Static analysis result for SHA-256 9b4ecbd2e8ac1876…

MALICIOUS

PDF

46.3 KB Created: 2020-08-21 17:58:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 576378acb11af27f29399680e0b78496 SHA-1: e2c0f6549fb532a59b3db5a15ca4510ceb5ad06f SHA-256: 9b4ecbd2e8ac187609b788b56e892a325c89a74e90a2b0d5d9c1d0cc4975459a
194 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to external resources. One of the primary links, https://ttraff.ru/pify?keyword=jai+bajrangbali+hd+photo, is flagged as a malicious redirector. The document body, though heavily obfuscated, also contains this URL, suggesting an attempt to direct users to malicious infrastructure. The presence of numerous links, including the malicious redirector, indicates a link farm or redirection attack pattern.

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.ru/pify?keyword=jai+bajrangbali+hd+photo In PDF document text
    • http://files.highbanks.com/uploads/1/3/0/8/130814078/faruzamuxug.pdfIn PDF document text
    • http://getabaxad.elbigotedepandereta.com/uploads/1/3/2/6/132681862/famavukavixali-zoburaxo.pdfIn PDF document text
    • http://ropon.brianjwelch.com/uploads/1/3/0/8/130874276/muruw.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/1/0440/1030/7749/files/lugikeg.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5117/9416/files/physics_volume_2_halliday_resnick_krane.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/2987/0230/files/wasujek.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6412/1752/files/vofilasibufisexodutanad.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/6678/3904/files/grupo_de_antibioticos_betalactamicos.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7977/0019/files/suzeg.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/56666804065.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3550/0439/files/dokulakadamunozuro.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2347/3560/files/58844459378.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0659/0106/files/pofovewepule.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3254/2369/files/rational_exponents_worksheet_algebra_1.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3764/6245/files/atomic_habits_summary.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8649/5397/files/fizavalegisi.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

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000062c4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x62C4 5248 bytes
SHA-256: 22771f3d4f4c5fdaf571ae77aecc5037b4354d5d8e799298ef05dabd35f727d9
font_01_sfnt_off00007488.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7488 14576 bytes
SHA-256: b3f607d0436c53517e3336aceb7ad8712c83d851f3013592925dcd74822b3dfd
font_02_sfnt_off0000a1da.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA1DA 2572 bytes
SHA-256: a266c491f4931368510dae9bd4cf4b58734b51aa8192ea38aee5fe523c195c0e