Malicious PDF — malware analysis report

Static analysis result for SHA-256 702e95ae15eccd04…

MALICIOUS

PDF

43.4 KB Created: 2020-09-05 16:53:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 46d3eaaad14823c3e734a2a0b1c5ff30 SHA-1: f79e6de4d8fc11228a68fb361b2df5548f8e90e1 SHA-256: 702e95ae15eccd0443e75296315609e87de77ce42e00b7bf2c891beead1a28b1
154 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for linking to known malicious redirector infrastructure, specifically pointing to 'ttraff.club'. The document body, though heavily obfuscated, contains the same URL and references to 'alien vs predator evolution apk hack', suggesting a lure. The presence of a large number of external PDF links further indicates an attempt to direct users to potentially malicious content or phishing sites.

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=alien+vs+predator+evolution+apk+hack
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • https://static.usrfiles.com/ugd/b8c837_54aff90327a942fe8d998f90f4cc31ad.pdf
    • https://static.usrfiles.com/ugd/a2e20a_d91bba1782d040d0ad340b16e5381098.pdf
    • https://static.usrfiles.com/ugd/b8c837_1779f72805b5484d8595fa4a2d796370.pdf
    • https://static.usrfiles.com/ugd/165585_d8ec235b24534cac82b148a1acf4f1a8.pdf
    • https://static.usrfiles.com/ugd/b8c837_84f8ae46630a4b688afbf3f941bb323a.pdf
    • https://static.usrfiles.com/ugd/628a76_53a066e719594927b3bb8b604e9a8615.pdf
    • https://static.usrfiles.com/ugd/b8c837_d14c48d4c1664a3da4a58274d6d36e87.pdf
    • https://cdn.shopify.com/s/files/1/0429/6146/9596/files/dusirapopijugirisoxowu.pdf
    • https://cdn.shopify.com/s/files/1/0468/1564/1754/files/beggar_of_net_my_new_life.pdf
    • https://cdn.shopify.com/s/files/1/0430/9480/2593/files/google_translate_languages_codes.pdf
    • https://cdn.shopify.com/s/files/1/0431/4116/9309/files/69419954488.pdf
    • https://static.usrfiles.com/ugd/585b1d_ccfe538e4cbb4edeace17f31ff90a9ce.pdf
    • https://static.usrfiles.com/ugd/b8c837_dd4d65ea4f9444d2a5a347f9902067be.pdf
    • https://static.usrfiles.com/ugd/b8c837_2c28722ba0fb4ef7952034c59dc9e030.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_off0000536a.bin
5f03d2c6bc08d28d18892b3fd5153044a2fff6aad81dd629dfd07635bf6cf50e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x536A 2880 bytes
font_01_sfnt_off00005da7.bin
558767179bdc7581d2beab6832c47dfd4e40442d81fbc8de76fed58822ab5a98		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5DA7 5156 bytes
font_02_sfnt_off00006f24.bin
e71f700fbf8da6ca27247d60aeb0ffe526ba0c184439ecdd2385860945b43dca		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6F24 10252 bytes
font_03_sfnt_off0000924f.bin
1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361		 pdf-font-stream PDF embedded font (sfnt) at offset 0x924F 4324 bytes

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