Malicious PDF — malware analysis report

Static analysis result for SHA-256 f9b192b52653c481…

MALICIOUS

PDF

45.1 KB Created: 2020-08-16 22:20:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8eb677cad573655bc94f5ee3753a428d SHA-1: 6cb805026f73c37da2aa945c3169142ace31c567 SHA-256: f9b192b52653c4817722f8c66a27201d53ae08a719e086bed9512dedc44ee2a8
128 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.cc/pify?keyword=cydia+impactor+ios+guide'. Additionally, it exhibits characteristics of a PDF link farm, embedding numerous external links, many of which are hosted on Shopify but some point to unknown domains. The document body, though heavily obfuscated, contains references to the redirector URL and other PDF links, suggesting a coordinated effort to drive traffic to potentially malicious sites. The presence of a 'download button' heuristic further supports the lure-based attack pattern.

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.cc/pify?keyword=cydia+impactor+ios+guide
    • http://japexi.azautogalleryllc.com/uploads/1/3/1/1/131163930/jotofifumiliveg-kekuvilasezofo.pdf
    • http://files.101prep.org/uploads/1/3/1/3/131379540/nilamufelugora.pdf
    • http://files.lenscapegallery.co.uk/uploads/1/3/0/7/130775071/6868825.pdf
    • http://nojif.amandakedaigle.com/uploads/1/3/2/6/132695663/26faf87d9.pdf
    • https://cdn.shopify.com/s/files/1/0430/3316/5986/files/regovezole.pdf
    • https://cdn.shopify.com/s/files/1/0428/7057/1174/files/25883390208.pdf
    • https://cdn.shopify.com/s/files/1/0433/3495/9259/files/ss_bolt_tightening_torque_chart.pdf
    • https://cdn.shopify.com/s/files/1/0430/7861/5189/files/15536720236.pdf
    • https://cdn.shopify.com/s/files/1/0434/0239/5813/files/software_engineering_by_pankaj_jalote.pdf
    • https://cdn.shopify.com/s/files/1/0437/7398/4919/files/83841930381.pdf
    • https://cdn.shopify.com/s/files/1/0429/8119/5927/files/gafuxopifoseg.pdf
    • https://cdn.shopify.com/s/files/1/0428/8184/3353/files/rupixiwasaziwimipipe.pdf
    • https://cdn.shopify.com/s/files/1/0438/2585/6662/files/c_a_f_syllabus.pdf
    • https://cdn.shopify.com/s/files/1/0431/8858/4605/files/apocalypse_rising_aimbot.pdf
    • https://cdn.shopify.com/s/files/1/0430/6301/7629/files/64101312311.pdf
    • https://cdn.shopify.com/s/files/1/0440/7748/2136/files/10833044942.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_off00007208.bin
7c1b62d034e5963840dfbf30691978c6205af6c0ebb07a27fd827235e62d940a
pdf-font-stream PDF embedded font (sfnt) at offset 0x7208 5368 bytes
font_01_sfnt_off0000843d.bin
3351378795162471adf488dad34fb9f674d50b3759498cf43389120ec9a03bed
pdf-font-stream PDF embedded font (sfnt) at offset 0x843D 10248 bytes