Malicious PDF — malware analysis report

Static analysis result for SHA-256 7601323030614ae2…

MALICIOUS

PDF

40.6 KB Created: 2020-09-17 18:02:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 2faa945a05d196aa191c8a18a4248637 SHA-1: 07b9feb99c89662fdaaf7eba6f2a013cc8e375e0 SHA-256: 7601323030614ae276c44baa0d7172c0fdb7752fb071f91f3625f6b37ca9d69c
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded links, many of which point to external PDF files hosted on file-sharing services, suggesting a link farm or redirection strategy. One of the primary links, 'https://ttraff.link/wix?keyword=seiko+perpetual+calendar+setting', is identified as a known malicious redirector. This indicates the document is designed to lead users to malicious infrastructure, likely for phishing or malware distribution.

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.link/wix?keyword=seiko+perpetual+calendar+setting
    • http://files.wjkart.com/uploads/1/3/0/7/130776131/tesadaj.pdf
    • http://vuwizi.dougcarpenterenterprises.com/uploads/1/3/1/6/131606540/7661104.pdf
    • http://files.peregrinosysusletras.net/uploads/1/3/1/4/131453453/pudinoxigawagab.pdf
    • http://files.mindfulandpresent.com/uploads/1/3/1/0/131069887/fapunolezimiwutaf.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://21aae76e-e927-4d3f-9288-4113a8958af2.filesusr.com/ugd/80685d_0f521bba6360476c998f07e7637b4fca.pdf?index=true
    • https://5d2874e7-477b-46ae-ad04-70a390d5c24b.filesusr.com/ugd/81d6a4_1a61ce717f0e4666aeb550e0a07ce6a5.pdf?index=true
    • https://50ceac27-b28c-4d2c-83f6-8128357c8451.filesusr.com/ugd/9ff9b8_3156bd2ce28749c8adb8ceb3981fb919.pdf?index=true
    • https://2c8331e7-29a0-4a66-a887-e6d3afd6d3d4.filesusr.com/ugd/595093_0b8d036ffb824721a2ccb792ab819ce5.pdf?index=true
    • https://cdn.shopify.com/s/files/1/0433/3584/3994/files/hematology_basic_principles_and_practice_hofmann.pdf
    • https://cdn.shopify.com/s/files/1/0430/4479/8613/files/nifavuwowesuge.pdf
    • https://cdn.shopify.com/s/files/1/0430/4066/9849/files/zuroritosebojerige.pdf
    • https://cdn.shopify.com/s/files/1/0428/8544/7833/files/fabitijubuweditez.pdf
    • https://cdn.shopify.com/s/files/1/0462/0658/2937/files/ac_market_app_for_games.pdf
    • https://cdn.shopify.com/s/files/1/0433/8568/4124/files/24731137330.pdf
    • https://cdn.shopify.com/s/files/1/0430/8362/8697/files/47072067330.pdf
    • https://cdn.shopify.com/s/files/1/0430/9018/2304/files/vebig.pdf
    • https://cdn.shopify.com/s/files/1/0431/4592/0672/files/weludafope.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_off00005f4a.bin
b3ed22279108518e42ed31e34df32e3a9c7ba9d960177328fb8f7872df1bdfd7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5F4A 5408 bytes
font_01_sfnt_off000071bc.bin
f97ea038c5f57a03369cf3b835c1652d26a817b41b9ef35f715f7ed4a84704b2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x71BC 10388 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.