Malicious PDF — malware analysis report

Static analysis result for SHA-256 96295aa19bc7a207…

MALICIOUS

PDF

46.4 KB Created: 2020-07-25 11:09:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4e20afc654d9933c93635dd23c3c2656 SHA-1: 538451480d2a28453a55e167807114b8abee7eb8 SHA-256: 96295aa19bc7a207cb8a170808c456a4fb7bbb4608b7792730db805dccfa58f3
128 Risk Score

Malware Insights

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

The PDF contains multiple heuristics indicating malicious intent, specifically linking to known malicious redirector infrastructure and employing a link farm strategy. The presence of a visual download button lure further supports a social engineering attack. While no scripts were extracted, the embedded URLs are the primary indicators of compromise.

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.ru/pify?keyword=2019+calendar+hd+image
    • http://files.pamelagossett.com/uploads/1/3/1/4/131437017/misemajefegif-faxepibimaba.pdf
    • http://files.youngatartmn.com/uploads/1/3/1/4/131407887/jotasolujuvul-pakelepimesu.pdf
    • http://files.turtletracksmaui.us/uploads/1/3/1/4/131407369/268311.pdf
    • http://files.monteaglemonarchs.com/uploads/1/3/0/9/130969657/wujotabifudibof.pdf
    • http://files.hammination.com/uploads/1/3/0/8/130813612/bureg.pdf
    • https://cdn.shopify.com/s/files/1/0431/5129/4619/files/mofesaj.pdf
    • https://cdn.shopify.com/s/files/1/0432/4294/6724/files/85258688438.pdf
    • https://cdn.shopify.com/s/files/1/0430/8549/6482/files/kazibanux.pdf
    • https://cdn.shopify.com/s/files/1/0427/9212/4572/files/gajesitupixunuribiloj.pdf
    • https://cdn.shopify.com/s/files/1/0431/7449/4369/files/jinilekefowabeno.pdf
    • https://cdn.shopify.com/s/files/1/0429/9295/9642/files/bazaluporakozorurosez.pdf
    • https://cdn.shopify.com/s/files/1/0433/0032/3478/files/bulewaxulakofofutolum.pdf
    • https://cdn.shopify.com/s/files/1/0438/4908/9186/files/70913217571.pdf
    • https://cdn.shopify.com/s/files/1/0433/1284/0862/files/wutig.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/98559129476.pdf
    • https://cdn.shopify.com/s/files/1/0431/1128/4893/files/rozevavinemuvelonagipe.pdf
    • https://cdn.shopify.com/s/files/1/0431/5830/6965/files/33425494036.pdf
    • https://cdn.shopify.com/s/files/1/0432/4684/6107/files/21455647174.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_off000076da.bin
c7116f7d8b637083ebeb056027929ec9c835ad7043bd78a5b331a2691acfbe59
pdf-font-stream PDF embedded font (sfnt) at offset 0x76DA 5160 bytes
font_01_sfnt_off00008817.bin
896d55e60761c33f1b88cdee644e131defa89aec511e2eb473bcb6a17b3f8985
pdf-font-stream PDF embedded font (sfnt) at offset 0x8817 10620 bytes