Malicious PDF — malware analysis report

Static analysis result for SHA-256 0f8708d4cec4c475…

MALICIOUS

PDF

44.5 KB Created: 2020-08-21 11:26:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4bb67847290ab33759ecfb2f7b93d0b1 SHA-1: 672083a03309e89286c4f0eeb7f71396f38543e2 SHA-256: 0f8708d4cec4c4756e6c2a362ef96d0884f9d88c6a1974f79952ecce15247855
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous links, including one identified as a malicious redirector. The document body, though heavily obfuscated, contains text related to 'Bollywood hd movie free website' and the malicious URL, suggesting a lure to trick users into clicking the link. The presence of a large number of external PDF links further indicates a link farm or redirection scheme.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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.
  • 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=bollywood+hd+movie+free++website
    • http://files.anchorfloral.com/uploads/1/3/0/7/130776828/makujevuje_fidamilukewaru.pdf
    • http://pipoda.yogawithanniebarrett.com/uploads/1/3/1/0/131070197/jarusalaxovoseg_wejobege.pdf
    • http://gakij.dcvegordering.com/uploads/1/3/0/7/130739068/kewofu.pdf
    • http://files.teressaking.com/uploads/1/3/1/4/131409761/xopapuzozase.pdf
    • http://files.globalconcreteroses.com/uploads/1/3/0/7/130775639/tuwigenu-wazuzajizejuj.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0432/6191/9396/files/vubezevopiribofo.pdf
    • https://cdn.shopify.com/s/files/1/0431/5630/8123/files/principles_of_genetics_snustad_6th_edition.pdf
    • https://cdn.shopify.com/s/files/1/0448/5827/8050/files/histoire_du_chateau_de_versailles.pdf
    • https://cdn.shopify.com/s/files/1/0428/2312/3100/files/adestramento_de_caes_gratis.pdf
    • https://cdn.shopify.com/s/files/1/0437/9593/9488/files/vusisugobakifigo.pdf
    • https://cdn.shopify.com/s/files/1/0432/3603/2680/files/30011256760.pdf
    • https://cdn.shopify.com/s/files/1/0432/1456/9640/files/20301058555.pdf
    • https://cdn.shopify.com/s/files/1/0427/9799/0055/files/18397079299.pdf
    • https://cdn.shopify.com/s/files/1/0437/5917/3790/files/mibu_possession_balloon.pdf
    • https://cdn.shopify.com/s/files/1/0431/5162/2306/files/zenar.pdf
    • https://cdn.shopify.com/s/files/1/0428/5480/9759/files/assigned_parking_space_template.pdf
    • https://cdn.shopify.com/s/files/1/0429/7955/7539/files/werunow.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006ff8.bin
34328eb9f7eff60ac06bcdd4f9caf5069dc1a9f6f3b4fb10b939b320d599098a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6FF8 5380 bytes
font_01_sfnt_off0000823b.bin
e1e18ff2364f2f97e46d39821ae33ac36b59984d7e2e725cade678198dc7b13a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x823B 10128 bytes

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