Malicious PDF — malware analysis report

Static analysis result for SHA-256 cc49973166c8eb32…

MALICIOUS

PDF

50.2 KB Created: 2020-09-20 09:08:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 23b788e58d9c5c64d1a23f206b5aa3df SHA-1: 4af200657973c9a6d7284fc5649dd0fbfa8930a2 SHA-256: cc49973166c8eb3249d2e56234710b6dad64a151254f56153b8e168ad0849a99
184 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF document functions as a link farm, embedding numerous URLs that lead to external resources. One of the embedded URLs, 'https://ttraff.me/wix?keyword=minecraft+potion+chart%25EF%25BF%25BC', is identified as a malicious redirector. The document's structure and the presence of many links suggest an attempt to direct users to potentially harmful sites, possibly for phishing or malware distribution.

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.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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.me/wix?keyword=minecraft+potion+chart%25EF%25BF%25BC In PDF document text
    • http://tekinas.anunfinishedsong.com/uploads/1/3/1/3/131379540/2659856.pdfIn PDF document text
    • http://rezuwevaf.myorianstudio.com/uploads/1/3/1/4/131408027/wegojikinotu.pdfIn PDF document text
    • http://files.stdavidscarrmill.org/uploads/1/3/1/0/131069781/fuwakavuwis_fesojane_kotanugibifod_bosujazekepov.pdfIn PDF document text
    • http://kozarajeg.kathrynjeffords.com/uploads/1/3/0/8/130874218/makibab.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://ccd6be4c-4a7a-4e24-b67c-d824605a85d4.filesusr.com/ugd/dfb5f8_e341ff60369b4978b13443d3ba015c00.pdf?index=trueIn PDF document text
    • https://0033fb0a-6ea7-4035-8707-830fbd831561.filesusr.com/ugd/681527_60bae2f300cc48e38d78abda8d4dcee1.pdf?index=trueIn PDF document text
    • https://1fdbd129-e5b9-4c8b-b9ef-ece46968d1c5.filesusr.com/ugd/dad7b5_229a54d2ff9244438506664a4386324e.pdf?index=trueIn PDF document text
    • https://cb59b8dc-aff6-4412-a039-47e111c09044.filesusr.com/ugd/78daac_5757041102804c59bb249a3952b93aae.pdf?index=trueIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1248/8343/files/kofezixodukorej.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5567/7591/files/clash_of_clans_mod_apk_androidp1.com.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3089/6026/files/html_to_library_js.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0290/4222/files/telexoga.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8104/7965/files/89523649366.pdfIn PDF document text
    • https://ef6c8e27-1473-4f03-8e33-5a98f144b26e.filesusr.com/ugd/fa6f14_043ac31cf1e54c6396a536087595a5a7.pdf?index=trueIn PDF document text
    • https://82153e2f-43ac-44d6-90ec-c2f004076db5.filesusr.com/ugd/d19ca0_a9c15efd45d945c68b4f2a9a110025ec.pdf?index=trueIn PDF document text
    • https://1319e8ec-2786-4a05-bd22-a44ab0e216ce.filesusr.com/ugd/e1d12c_b552b1b95f0448a298da782de98da94a.pdf?index=trueIn PDF document text
    • https://ad774135-91cd-4a9f-bdee-3cbc322ae914.filesusr.com/ugd/0779a3_77814d55605e4db9966590ca75c9ffe2.pdf?index=trueIn PDF document text
    • https://bf06e8b1-6413-44d6-8cd7-ef98356aef01.filesusr.com/ugd/e4d7df_2d2d9c8043aa4538bb23f60d514bf841.pdf?index=trueIn 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://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_005_off00009dde.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x9DDE 18148 bytes
SHA-256: d896e5555e384c4a4041e512361d1b401548febaa3091cf6646064f9a178dd99
font_00_sfnt_off00006938.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6938 4904 bytes
SHA-256: b2f3534844e3f6b5aa030161bbe6bccfbe7a44fe7267245f580288f106d02dc7
font_01_sfnt_off000079f7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x79F7 10420 bytes
SHA-256: acd32cb9bfa97aa081f962ab73b079445573757a394d2f5e10902066b766b8f9

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