Malicious PDF — malware analysis report

Static analysis result for SHA-256 4e201656b2a185ec…

MALICIOUS

PDF

45.8 KB Created: 2020-08-21 12:14:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 2c5a761e1d5a8ab775e8b8f2e1b29ac4 SHA-1: 7075b2bc8d89a9b1c7a075dadf4248593a9124c5 SHA-256: 4e201656b2a185ec541fb98e2313bcdfc9ebbf312727e867792a6f30dee86a91
130 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link T1059.001 PowerShell

The PDF document contains a deceptive lure, presenting itself as a 'thank you card template word doc' to entice users to click embedded links. The primary link, 'https://ttraff.ru/pify?keyword=thank+you+card+template+word+doc', is identified as a malicious redirector. The document also hosts a large number of external PDF links, many pointing to Shopify domains, suggesting a link farm or SEO manipulation tactic to obscure the malicious destination. No scripts were extracted, but the PDF structure and embedded links strongly indicate a phishing or redirection attack.

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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=thank+you+card+template+word+doc
    • http://files.cupcake-couture.net/uploads/1/3/0/7/130739227/4627659.pdf
    • http://jajat.clovisparkinthepark.com/uploads/1/3/1/1/131164250/xoxutikijuwal-zimigofigek.pdf
    • http://files.soapbarlounge.com/uploads/1/3/0/7/130776718/luriza_bokitewakikizu_sepipe.pdf
    • http://files.freedomticket.org/uploads/1/3/2/6/132682303/mixoge.pdf
    • https://cdn.shopify.com/s/files/1/0440/1666/4734/files/miribotipiwawox.pdf
    • https://cdn.shopify.com/s/files/1/0434/7373/1741/files/nigiz.pdf
    • https://cdn.shopify.com/s/files/1/0436/0683/5358/files/phn_mm_chuyn_file_nh_jpg_sang.pdf
    • https://cdn.shopify.com/s/files/1/0428/3337/9484/files/blank_will_form.pdf
    • https://cdn.shopify.com/s/files/1/0430/3699/9831/files/ralonopofolezuviwa.pdf
    • https://cdn.shopify.com/s/files/1/0436/2724/9826/files/add_transparent_png_to.pdf
    • https://cdn.shopify.com/s/files/1/0431/9812/0096/files/soxapiwevuzorazuxanif.pdf
    • https://cdn.shopify.com/s/files/1/0437/7529/5640/files/retribution_paladin_stat_priority.pdf
    • https://cdn.shopify.com/s/files/1/0440/6312/9765/files/majajegujasusunolu.pdf
    • https://cdn.shopify.com/s/files/1/0432/6601/5395/files/64520028125.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_off00006848.bin
979713f3157d72b2731ad543be1a4b823a48a67599130e235df94de2934cf6d9
pdf-font-stream PDF embedded font (sfnt) at offset 0x6848 5176 bytes
font_01_sfnt_off000079c1.bin
2285c9ed378c9a8ef16abf8414d969ed88a3abdedeb12a9ca7200a3cd24ab931
pdf-font-stream PDF embedded font (sfnt) at offset 0x79C1 10080 bytes
font_02_sfnt_off00009c30.bin
4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3
pdf-font-stream PDF embedded font (sfnt) at offset 0x9C30 4324 bytes