Malicious PDF — malware analysis report

Static analysis result for SHA-256 e13ee3c628e504ea…

MALICIOUS

PDF

46.8 KB Created: 2020-08-28 00:18:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8073993bc4d64065c332a5bc0a62f084 SHA-1: 8cc630caa659d8d0ebd44fed0b8179ce269ded3c SHA-256: e13ee3c628e504ead2d790d606ebf3462d8160727c3ccf301713b53a93dfcf19
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, with 30 external links identified. One of these links, https://ttraff.cc/pify?keyword=ratchet+and+clank+pcsx2+settings, is flagged as a known malicious redirector. The document body contains garbled text and references to 'wkhtmltopdf', suggesting it was programmatically generated. The presence of a link farm and a malicious redirector indicates a phishing or malicious content delivery attempt.

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.cc/pify?keyword=ratchet+and+clank+pcsx2+settings
    • http://files.jenateer.org/uploads/1/3/0/8/130814205/1c7b7.pdf
    • http://begegor.itisallaboutlife.eu/uploads/1/3/1/1/131164239/judatato.pdf
    • http://files.4-ucorp.com/uploads/1/3/0/7/130739120/2352631.pdf
    • https://cdn.shopify.com/s/files/1/0431/1007/2481/files/diy_gift_card_envelope_template.pdf
    • https://cdn.shopify.com/s/files/1/0431/1747/8044/files/75195514409.pdf
    • https://cdn.shopify.com/s/files/1/0428/5356/4583/files/paxaporejosuke.pdf
    • https://cdn.shopify.com/s/files/1/0432/0778/6657/files/65292723855.pdf
    • https://cdn.shopify.com/s/files/1/0431/2216/3866/files/skyrim_ini_files_download.pdf
    • https://cdn.shopify.com/s/files/1/0441/0540/0472/files/facsdiva_import_template.pdf
    • https://cdn.shopify.com/s/files/1/0437/9272/8226/files/class_10_rise_of_nationalism_in_europe_notes.pdf
    • https://cdn.shopify.com/s/files/1/0433/9105/8078/files/lewebawejuratefivabaw.pdf
    • https://cdn.shopify.com/s/files/1/0434/4102/9276/files/42499041664.pdf
    • https://cdn.shopify.com/s/files/1/0438/3830/8512/files/76379850455.pdf
    • https://cdn.shopify.com/s/files/1/0437/7110/1338/files/52702637923.pdf
    • https://cdn.shopify.com/s/files/1/0432/7876/2140/files/anime_slayer_android_2._3._6.pdf
    • https://cdn.shopify.com/s/files/1/0432/4235/6904/files/81980300006.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006085.bin
1e583fae0195531c30d78022a78122bd9efe65df316df05ea8b6d6586a4d885e
pdf-font-stream PDF embedded font (sfnt) at offset 0x6085 5188 bytes
font_01_sfnt_off00007222.bin
cbd27aa19e9f8f024dad5230d8fe738ce2f584dc6468d446b81bbc7b5625f0d5
pdf-font-stream PDF embedded font (sfnt) at offset 0x7222 14852 bytes
font_02_sfnt_off0000a007.bin
05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176
pdf-font-stream PDF embedded font (sfnt) at offset 0xA007 4324 bytes