Malicious PDF — malware analysis report

Static analysis result for SHA-256 ac7a252224013060…

MALICIOUS

PDF

38.9 KB Created: 2020-08-11 20:54:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 69e46a43275a61ffedcc09cb2e7ad9fc SHA-1: 6de0edd93b4cf1eed3523043681f186b353b1270 SHA-256: ac7a252224013060777d2ca48322b607d57225282ab49948cdcb7e30d65ec09a
120 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many pointing to Shopify domains, but one critical link directs to a known malicious redirector at 'ttraff.com'. This indicates a deliberate attempt to obscure the final malicious destination. The document body, though heavily obfuscated, also contains the same redirector URL, reinforcing its malicious intent. The presence of a link farm suggests a tactic to increase the chances of a user clicking a malicious link, potentially leading to phishing or malware download.

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.com/pify?keyword=safety+jogger+bestboy+pdf
    • http://files.arklow.coralleisure.ie/uploads/1/3/1/3/131381078/binamodebozatu.pdf
    • http://files.nlistudiosla.com/uploads/1/3/1/4/131438038/pabutarirotosara.pdf
    • http://files.tinaplakinger.com/uploads/1/3/2/3/132303238/gafero.pdf
    • http://files.oldfieldfarmhorseandhome.com/uploads/1/3/1/4/131453588/3342591.pdf
    • http://files.connectscounseling.com/uploads/1/3/0/8/130874253/7162373.pdf
    • https://cdn.shopify.com/s/files/1/0431/3127/3383/files/15500602833.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/bewewolifokolugetu.pdf
    • https://cdn.shopify.com/s/files/1/0432/0555/8436/files/zesoput.pdf
    • https://cdn.shopify.com/s/files/1/0430/9814/4932/files/vofezapujidogo.pdf
    • https://cdn.shopify.com/s/files/1/0437/1687/0293/files/presentation_in_english_example.pdf
    • https://cdn.shopify.com/s/files/1/0435/3225/5392/files/83898287154.pdf
    • https://cdn.shopify.com/s/files/1/0437/5881/3341/files/sap_basis_certification_questions_and_answers.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/68769425665.pdf
    • https://cdn.shopify.com/s/files/1/0438/4364/9698/files/capteur_d_humidit_du_sol_analogique_et_numrique.pdf
    • https://cdn.shopify.com/s/files/1/0432/0637/7632/files/ridipekewega.pdf
    • https://cdn.shopify.com/s/files/1/0429/2821/0073/files/suxesovusigezolegazasu.pdf
    • https://cdn.shopify.com/s/files/1/0431/4864/0418/files/viregisogajel.pdf
    • https://cdn.shopify.com/s/files/1/0433/1687/1333/files/lusedomisarajirotipurege.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_off00004c15.bin
5bbbf05ff448aebb97e4ef902cf8edc0cf7b659a691ba64f1f1c227f2b4ffed5
pdf-font-stream PDF embedded font (sfnt) at offset 0x4C15 5232 bytes
font_01_sfnt_off00005df9.bin
d19c96a5feec404ac578b6c68da2f7e329a4b3fc3c385397efb813a2dfcdedb3
pdf-font-stream PDF embedded font (sfnt) at offset 0x5DF9 10224 bytes
font_02_sfnt_off000080a9.bin
05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176
pdf-font-stream PDF embedded font (sfnt) at offset 0x80A9 4324 bytes