Malicious PDF — malware analysis report

Static analysis result for SHA-256 eb51b2de70ad4b47…

MALICIOUS

PDF

52.3 KB Created: 2020-08-21 10:44:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: e842189c3635d3131b70333a50354237 SHA-1: abf060b0a2ebc58e8206037537d5339b57a97ea8 SHA-256: eb51b2de70ad4b476b73722b336d311b9b22a216ea9cfbbbcf5b342e9e955f28
130 Risk Score

Malware Insights

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

The PDF contains a mass external link farm, with many links pointing to Shopify domains hosting PDF files. One prominent link, 'https://ttraff.cc/pify?keyword=vclip+apk+online', is flagged as a malicious redirector. The document body also contains this URL and a call-to-action phrase, suggesting a lure to download an application. The presence of multiple PDF links and a malicious redirector indicates a phishing or malware distribution attempt.

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=vclip+apk+online
    • http://tadod.diggaglassgallery.com/uploads/1/3/0/8/130813765/sawufexuzekerol.pdf
    • http://files.dmdgo.com/uploads/1/3/1/6/131606861/106010.pdf
    • https://cdn.shopify.com/s/files/1/0432/1338/9992/files/86058787435.pdf
    • https://cdn.shopify.com/s/files/1/0434/4302/8120/files/46510729543.pdf
    • https://cdn.shopify.com/s/files/1/0433/0035/6251/files/61997976913.pdf
    • https://cdn.shopify.com/s/files/1/0436/9252/3675/files/bell_crank_lever_experiment.pdf
    • https://cdn.shopify.com/s/files/1/0429/7188/9815/files/kesobonir.pdf
    • https://cdn.shopify.com/s/files/1/0428/4694/5436/files/foniwotenifepufuxofekiju.pdf
    • https://cdn.shopify.com/s/files/1/0435/6636/6869/files/legomitemabizawegepid.pdf
    • https://cdn.shopify.com/s/files/1/0428/0667/3575/files/57604551331.pdf
    • https://cdn.shopify.com/s/files/1/0430/5177/8202/files/dakufe.pdf
    • https://cdn.shopify.com/s/files/1/0427/8065/5775/files/95454349714.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 5

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005eee.bin
dc49bb006bd3228fb201c708f1ebade7bdb01378990da250d67b39d77b9a9193		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5EEE 2992 bytes
font_01_sfnt_off00006999.bin
a2fc1899ec54464411c6fa355d769cf85447b46592da4d05915519e46306d27d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6999 4680 bytes
font_02_sfnt_off00007993.bin
faade0f089c6838b9bd5c9f090cea77c376559430c57049d7ce5ba420de91774		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7993 3892 bytes
font_03_sfnt_off00008929.bin
1640c975756a2ec9018c4c1da33cad1e049238aed199da3ceb1aa831d45fc654		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8929 10060 bytes
font_04_sfnt_off0000abe2.bin
e923e76bf89b118ab362d26bc160801f6df3e0a9971dbff99d798902b4fceb4d		 pdf-font-stream PDF embedded font (sfnt) at offset 0xABE2 16656 bytes

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