Malicious PDF — malware analysis report

Static analysis result for SHA-256 bdd85efe2d281269…

MALICIOUS

PDF

44.4 KB Created: 2020-07-31 00:32:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8992fdccd0fdf3b09b7cc2ccd9269d90 SHA-1: db2ff2737fab543dce7690f32ef9fbd47cfe3a3b SHA-256: bdd85efe2d281269c60a2a736f12f8e901ec0abe465bad96e030b31fdd45a54d
128 Risk Score

Malware Insights

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

The PDF contains a malicious redirector link and a mass external PDF link farm, indicating an attempt to direct users to malicious content. The presence of a visual download button further supports a social engineering lure. The document body is heavily obfuscated and unreadable, but the heuristics clearly point to a malicious redirection workflow.

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=the+human+machine+george+bridgman+pdf+download
    • http://files.cobaltcounselor.com/uploads/1/3/2/6/132682882/dfca1db518c.pdf
    • http://files.km4kate.com/uploads/1/3/1/4/131409210/ba05194255.pdf
    • http://files.littlesprouts.org.uk/uploads/1/3/0/8/130874566/dekaraladofare.pdf
    • http://files.littlesprouts.org.uk/uploads/1/3/0/8/130874566/de
    • https://cdn.shopify.com/s/files/1/0434/5970/7037/files/22561385237.pdf
    • https://cdn.shopify.com/s/files/1/0432/2738/1920/files/kejimanulikarimesefukej.pdf
    • https://cdn.shopify.com/s/files/1/0434/8890/3325/files/xoximalebuzeza.pdf
    • https://cdn.shopify.com/s/files/1/0427/5005/0460/files/40369361459.pdf
    • https://cdn.shopify.com/s/files/1/0433/9915/1768/files/56740504636.pdf
    • https://cdn.shopify.com/s/files/1/0433/7896/6691/files/22646675916.pdf
    • https://cdn.shopify.com/s/files/1/0430/8166/2613/files/lavegavezezulum.pdf
    • https://cdn.shopify.com/s/files/1/0438/0976/7584/files/2743508840.pdf
    • https://cdn.shopify.com/s/files/1/0429/0369/9615/files/dexefotevusiwarujuja.pdf
    • https://cdn.shopify.com/s/files/1/0434/7101/2006/files/74996025272.pdf
    • https://cdn.shopify.com/s/files/1/0435/5286/6463/files/towijunajinawi.pdf
    • https://cdn.shopify.com/s/files/1/0431/4519/9777/files/dokotatemat.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_off000070af.bin
e84a72720ddc71b8338e7c8a0e9daa9a3b7e98b8183afdf18279f4fb33c23c6e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x70AF 5376 bytes
font_01_sfnt_off000082d0.bin
26f598f64e780194705ee1e10c7be4fbcf8f41e8e65b9b85c397beb902e1bc5b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x82D0 9868 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.