Malicious PDF — malware analysis report

Static analysis result for SHA-256 527ba0be5e3838f2…

MALICIOUS

PDF

53.6 KB Created: 2020-08-06 16:53:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6b30e67e42cebe7e505a51ac0e448be3 SHA-1: 1055c118fdecff86a6887d3a56660ab3373040d0 SHA-256: 527ba0be5e3838f2b6029738151913aec34ff6105228612f04cd3a00c5871639
120 Risk Score

Malware Insights

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

The PDF document contains a large number of embedded links, many of which point to benign content on Shopify. However, one critical link, 'https://ttraff.ru/pify?keyword=az+302+exam+dumps+pdf', is identified as a malicious redirector. This suggests the document's primary purpose is to lure users into clicking this malicious link, likely leading to a phishing or malware download site. 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=az+302+exam+dumps+pdf
    • http://files.marielcosmeticsllc.com/uploads/1/3/0/7/130775645/gudawiramatiluja.pdf
    • http://files.mahoganydrug.com/uploads/1/3/1/4/131453618/6141808.pdf
    • http://files.watersaltbohojewellery.com/uploads/1/3/1/6/131637357/wanaku-wuvozevopelapow-zureguvinaxikam.pdf
    • https://cdn.shopify.com/s/files/1/0430/0662/3903/files/programa_bac_romana_2020.pdf
    • https://cdn.shopify.com/s/files/1/0438/8945/9368/files/65591635405.pdf
    • https://cdn.shopify.com/s/files/1/0444/3671/7735/files/houston_tx_zip_code_map.pdf
    • https://cdn.shopify.com/s/files/1/0429/3555/0111/files/cariotipo_tecnica.pdf
    • https://cdn.shopify.com/s/files/1/0433/2165/5464/files/unable_to_add_text_to_document.pdf
    • https://cdn.shopify.com/s/files/1/0427/4031/8375/files/fedex_freight_employee_handbook.pdf
    • https://cdn.shopify.com/s/files/1/0431/4251/2797/files/62421963354.pdf
    • https://cdn.shopify.com/s/files/1/0437/2656/9633/files/medicamentos_betalactamicos.pdf
    • https://cdn.shopify.com/s/files/1/0434/1547/0245/files/29730311409.pdf
    • https://cdn.shopify.com/s/files/1/0431/8471/7979/files/moduzezivofig.pdf
    • https://cdn.shopify.com/s/files/1/0437/5887/8872/files/65670587875.pdf
    • https://cdn.shopify.com/s/files/1/0429/6772/8281/files/58132823150.pdf
    • https://cdn.shopify.com/s/files/1/0431/2314/6906/files/68946153737.pdf
    • https://cdn.shopify.com/s/files/1/0429/6019/1641/files/xakimomivox.pdf
    • https://cdn.shopify.com/s/files/1/0430/8893/7120/files/davv_cet_previous_year_question_papers_with_solutions.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_off00008631.bin
70dcd69207b606a8e9b24456641ebfaea41c2b0a39e8c68bb05538ed339a41bb
pdf-font-stream PDF embedded font (sfnt) at offset 0x8631 5604 bytes
font_01_sfnt_off00009945.bin
287b2ee22e005286db5957173992a66d60be15808f28af02091aa10b4ef43fa0
pdf-font-stream PDF embedded font (sfnt) at offset 0x9945 15424 bytes