Malicious PDF — malware analysis report

Static analysis result for SHA-256 e35fe558f0996790…

MALICIOUS

PDF

41.9 KB Created: 2020-08-09 01:37:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: fec1c65fe377a00cde0e58f51eec9353 SHA-1: 77f7fd10bd5c455c91ba05f461441eb7587cf80a SHA-256: e35fe558f0996790c4d61acf3a55e9a031a34f6fe247510af65b0e3d301112de
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.ru/pify?keyword=induction+and+augmentation+of+labour+pdf'. This indicates the document's primary purpose is to lure the user to a potentially harmful external site. The PDF also exhibits characteristics of a link farm, with numerous embedded URLs, many hosted on cdn.shopify.com, suggesting an attempt to manipulate search engine results or distribute content through multiple channels. No scripts were extracted from this sample.

Heuristics 3

  • 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.
  • 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.ru/pify?keyword=induction+and+augmentation+of+labour+pdf
    • http://pumuvavoj.myroadtoironman.com/uploads/1/3/1/8/131856772/rifawowuz_nazinusimixufe_gizigijetisoj_rapififofo.pdf
    • http://files.churchofthemightysavior.org/uploads/1/3/0/7/130740211/zegudok.pdf
    • http://files.desertjudoaz.com/uploads/1/3/2/6/132682739/lutevekatovevetenemu.pdf
    • http://files.metrodetroitreview.com/uploads/1/3/0/8/130873840/9863710.pdf
    • https://cdn.shopify.com/s/files/1/0437/3030/5175/files/50179113419.pdf
    • https://cdn.shopify.com/s/files/1/0431/7783/6703/files/banking_regulation_act_sections.pdf
    • https://cdn.shopify.com/s/files/1/0437/8935/3117/files/25724078446.pdf
    • https://cdn.shopify.com/s/files/1/0433/1828/0357/files/canard_pc_2020.pdf
    • https://cdn.shopify.com/s/files/1/0440/3567/0166/files/zerajuledimisirejisinug.pdf
    • https://cdn.shopify.com/s/files/1/0441/1303/5416/files/megos.pdf
    • https://cdn.shopify.com/s/files/1/0434/4964/7261/files/84596490300.pdf
    • https://cdn.shopify.com/s/files/1/0435/9097/5647/files/74826696628.pdf
    • https://cdn.shopify.com/s/files/1/0441/2915/7272/files/carla_spice_videos.pdf
    • https://cdn.shopify.com/s/files/1/0433/3145/3081/files/comptia_casp_study_guide_download.pdf
    • https://cdn.shopify.com/s/files/1/0429/8987/9445/files/28022539016.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/

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000663c.bin
3eb0b2bbb2830c80edf4bee04239212ad5ae7f7c9b4bdd23b2400f92e8e415dc		 pdf-font-stream PDF embedded font (sfnt) at offset 0x663C 5376 bytes
font_01_sfnt_off00007869.bin
244fa5ee7a0d2bf94bc2bf6723a644230c6fc4ab261f1bd3e9007e11cef2a668		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7869 9948 bytes

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