Malicious PDF — malware analysis report

Static analysis result for SHA-256 f75ee2a8fafb1744…

MALICIOUS

PDF

40.3 KB Created: 2020-08-22 19:54:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 974c7c20d9c94035a13deac9356d1dbe SHA-1: 2e2a018d8da97f7e188094654ca283023192f7af SHA-256: f75ee2a8fafb1744f69cf408a52146f999058706af81eee5c15475649503648b
128 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.001 User Execution: Malicious Link

The PDF document contains a critical heuristic firing for a malicious redirector link, specifically pointing to 'https://ttraff.com/pify?keyword=video+format+converter+apk+for+pc'. This indicates the document's primary purpose is to redirect users to potentially harmful content. The presence of a "download button" heuristic further supports the lure-based attack pattern. The document also features a link farm, suggesting an attempt to manipulate search engine results or distribute content widely.

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.com/pify?keyword=video+format+converter+apk+for+pc
    • http://files.bayareareclaiming.org/uploads/1/3/0/7/130775830/xipufib_vugomunidav_vabafi.pdf
    • http://files.dragansutic.com/uploads/1/3/0/9/130969448/gapubizaziwaxum.pdf
    • http://files.sellmymacbook.com/uploads/1/3/0/7/130776490/salodojiw.pdf
    • http://nafejovad.southernhomesandgardens.com/uploads/1/3/1/3/131381497/gebijuvevet.pdf
    • http://files.hollywoodlandpod.com/uploads/1/3/1/3/131379039/revisexunug.pdf
    • https://cdn.shopify.com/s/files/1/0433/7162/6659/files/a_b_whole_square_formula.pdf
    • https://cdn.shopify.com/s/files/1/0460/1665/9623/files/barron_s_ap_psychology.pdf
    • https://cdn.shopify.com/s/files/1/0429/6579/4965/files/61085661686.pdf
    • https://cdn.shopify.com/s/files/1/0433/8204/6869/files/sinusite_aguda_pediatria.pdf
    • https://cdn.shopify.com/s/files/1/0432/5313/7576/files/99516450098.pdf
    • https://cdn.shopify.com/s/files/1/0432/3088/8094/files/horarios_cercanias_bilbao.pdf
    • https://cdn.shopify.com/s/files/1/0440/4979/3174/files/suxudaxevozomovem.pdf
    • https://cdn.shopify.com/s/files/1/0432/8561/0654/files/authoritative_leadership.pdf
    • https://cdn.shopify.com/s/files/1/0440/2623/2997/files/feguduzafoxeme.pdf
    • https://cdn.shopify.com/s/files/1/0435/5699/5233/files/the_zodiac_legacy_balance_of_power.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_off00006173.bin
800144bb6e2098999ca2bb197c6ebe4e16cdcc7c7492948384270366fb69878e
pdf-font-stream PDF embedded font (sfnt) at offset 0x6173 5180 bytes
font_01_sfnt_off00007302.bin
8158bb8fc5fa7afaddd7830e0404c0fd8d1088ec7b316d921bea65b4d68a2c39
pdf-font-stream PDF embedded font (sfnt) at offset 0x7302 9848 bytes