Malicious PDF — malware analysis report

Static analysis result for SHA-256 01213926b08aa3ef…

MALICIOUS

PDF

49.4 KB Created: 2020-09-17 12:01:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 267ad031192ab5147ed009c0341d0b4d SHA-1: e08d602a83e37265725b4c7b2f2ad89781a2b411 SHA-256: 01213926b08aa3ef565b349a631160a9b4c4c5daeb6035bf121043d5bf9c8a5a
154 Risk Score

Malware Insights

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

The PDF document contains a lure related to "roblox building hack" and embeds numerous links. One of the primary links, https://ttraff.club/wix?keyword=welcome+to+roblox+building+hack, is identified as a malicious redirector. The PDF also hosts a large number of other PDF files, suggesting a link farm or SEO poisoning tactic to distribute malicious content.

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.club/wix?keyword=welcome+to+roblox+building+hack
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • https://73a90291-3009-4c69-8642-2eaa92054d6b.filesusr.com/ugd/db1da1_3b7ec407ee3d44bbb33018abc6583528.pdf?index=true
    • https://319f6224-d223-4e68-9737-28d274e4d3ae.filesusr.com/ugd/144d27_5d62423fbf9a4cadac4e9212e4c71c95.pdf?index=true
    • https://725c11bb-a274-4fac-9b72-ccc38e84dcf4.filesusr.com/ugd/a2e20a_f8385b7147ff429b80c1d63785203df7.pdf?index=true
    • https://55404dc9-1098-4b2d-8516-cfbf5a783c28.filesusr.com/ugd/be19e1_0bd266991b2b4cd0a4535c5add9e9289.pdf?index=true
    • https://781577dc-ceb1-4b35-84fb-39bcb561dbf0.filesusr.com/ugd/911c12_1c4513e7aac14f74ba3918afb49d5dbb.pdf?index=true
    • https://f77a229e-1da8-48b8-92f1-921dd20f761b.filesusr.com/ugd/e80f4c_144699d3fa81447ab6a3cbd4cb956d1f.pdf?index=true
    • https://8744e9a4-be15-4c7a-b9cf-3232131bfbb9.filesusr.com/ugd/a4ea6c_842df4729d4447c4a3422bb1fca8d062.pdf?index=true
    • https://e368bde4-c419-4392-b7a1-c8d2ea16d0c1.filesusr.com/ugd/1b6cec_36179edfb61e45248f98a4eceeb2a358.pdf?index=true
    • https://05023878-de27-4fe8-9382-5a52efbab8f8.filesusr.com/ugd/238140_76f822d34f2640eeb8d7645699418da4.pdf?index=true
    • https://d9ccf0c4-cefb-4d50-8ca4-0a9159bdcc80.filesusr.com/ugd/1a1092_11fe21e55184417f91edbbb676dc993c.pdf?index=true
    • https://4cf88b35-f18e-4fc0-830f-4664c999d19c.filesusr.com/ugd/eda9ba_182fdec07f3a4dc4a1c2a06e3abfce96.pdf?index=true
    • https://95e82e45-b20b-403c-bad6-34f0b4889eb7.filesusr.com/ugd/8acad3_8aecac751b5043d48b09430e1489148f.pdf?index=true
    • https://6af0213c-65de-452d-85c9-56ff3555748e.filesusr.com/ugd/6e13d9_d5a61ef9374143769e0c17dfeface6e6.pdf?index=true
    • https://cdn.shopify.com/s/files/1/0440/1925/3413/files/tifab.pdf
    • https://cdn.shopify.com/s/files/1/0430/5541/5445/files/jetadorel.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006afb.bin
f2bb8fddceb10cf88732c86e5b2a1c9a394173ef9a6f4329d1dcc999d5f0ca63		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6AFB 5344 bytes
font_01_sfnt_off00007cf4.bin
daad3f347a4f42f432ee9983e619a7c063e36761dba5934b469418034847e28e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7CF4 1800 bytes
font_02_sfnt_off00008582.bin
4de07d0200fa9f8503e95a4bcd4d739043ea4828fcaee25c8be071df53d7e20c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8582 10772 bytes
font_03_sfnt_off0000aa0f.bin
1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361		 pdf-font-stream PDF embedded font (sfnt) at offset 0xAA0F 4324 bytes

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