Malicious PDF — malware analysis report

Static analysis result for SHA-256 223cc99ceac301a4…

MALICIOUS

PDF

46.1 KB Created: 2020-08-12 12:57:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8aff874cefd63fbbd7dbcae8f04640d9 SHA-1: 4144cffe7bebe0e1dd5666df7d51e64899e203b0 SHA-256: 223cc99ceac301a4b06d7601d7f77efbbd34d6af7859f74553af960f54d8e0bc
120 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link, pointing to 'https://ttraff.cc/pify?keyword=batch+file+scripting+tutorial+pdf'. This indicates the document's primary purpose is to redirect users to malicious infrastructure, likely for further exploitation or phishing. The document also contains a large number of embedded links, many of which point to Shopify domains, suggesting a link farm or SEO manipulation tactic to obscure the malicious redirector. 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.cc/pify?keyword=batch+file+scripting+tutorial+pdf
    • http://files.vanessanbrown.org/uploads/1/3/0/8/130814715/4ebec06272b6305.pdf
    • http://boneze.saalt.org.za/uploads/1/3/1/0/131070356/1386020.pdf
    • http://files.morterboard.com/uploads/1/3/2/7/132740637/ziwoli.pdf
    • http://files.charleysplacemorrismn.com/uploads/1/3/1/4/131453188/8937086.pdf
    • http://popirifup.manuelamazzanti.com/uploads/1/3/1/3/131383483/vukozewag.pdf
    • https://cdn.shopify.com/s/files/1/0427/6636/8935/files/76703937464.pdf
    • https://cdn.shopify.com/s/files/1/0430/5082/7929/files/refeje.pdf
    • https://cdn.shopify.com/s/files/1/0433/9056/6556/files/antilogarithm_table_download.pdf
    • https://cdn.shopify.com/s/files/1/0428/5458/0390/files/natural_causes_of_water_pollution.pdf
    • https://cdn.shopify.com/s/files/1/0437/0972/6888/files/19494763612.pdf
    • https://cdn.shopify.com/s/files/1/0435/2131/0880/files/98981657785.pdf
    • https://cdn.shopify.com/s/files/1/0432/3462/3643/files/35941689380.pdf
    • https://cdn.shopify.com/s/files/1/0433/3538/5243/files/28038087408.pdf
    • https://cdn.shopify.com/s/files/1/0450/4656/2966/files/high_school_english_vocabulary.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/35031547028.pdf
    • https://cdn.shopify.com/s/files/1/0439/0617/1048/files/padi_open_water_diver_manual.pdf
    • https://cdn.shopify.com/s/files/1/0430/4257/0401/files/zufepelidevovelur.pdf
    • https://cdn.shopify.com/s/files/1/0430/0872/1045/files/mazopugiposajoxuka.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_off00006b46.bin
c77c996ab22dcfae551c5e7f9dc242cb754bfa2e03cb93ee55d05fea6763ebae
pdf-font-stream PDF embedded font (sfnt) at offset 0x6B46 5468 bytes
font_01_sfnt_off00007dc6.bin
e9a5a1f6ed95b1e3669933bb00002ad32a1708c3e0b735191cad5e02368a6c7d
pdf-font-stream PDF embedded font (sfnt) at offset 0x7DC6 1800 bytes
font_02_sfnt_off00008654.bin
ce113e83b80f666e703b361fe42009abf1b461f91915c150c058a40a343ae69d
pdf-font-stream PDF embedded font (sfnt) at offset 0x8654 10936 bytes