Malicious PDF — malware analysis report

Static analysis result for SHA-256 d27fda8bee2b2ed5…

MALICIOUS

PDF

48.2 KB Created: 2020-08-29 20:00:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 186cd526395acf14af1818f89b7fc41a SHA-1: 97b477698f50becbcc17d778607d58365cd90239 SHA-256: d27fda8bee2b2ed56b2633ccd824c749344c49c64c9f46a60692dc03f63b847f
128 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, a significant portion of which point to a link farm hosted on cdn.shopify.com. One critical heuristic identified a malicious redirector link (https://ttraff.cc/wix?keyword=summon+night+swordcraft+story+3+engl) which is likely the primary payload delivery mechanism. The presence of a visual download button lure further supports a social engineering 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/wix?keyword=summon+night+swordcraft+story+3+engl
    • https://cdn.shopify.com/s/files/1/0431/6777/6919/files/karazobozeg.pdf
    • https://cdn.shopify.com/s/files/1/0435/3431/9776/files/56714587927.pdf
    • https://cdn.shopify.com/s/files/1/0449/1840/7335/files/rosidisigesegenukipiro.pdf
    • https://cdn.shopify.com/s/files/1/0438/2231/7730/files/23881770865.pdf
    • https://cdn.shopify.com/s/files/1/0438/7697/4747/files/89202125516.pdf
    • https://cdn.shopify.com/s/files/1/0438/0327/9517/files/glock_26_width.pdf
    • https://cdn.shopify.com/s/files/1/0429/6127/2988/files/raliju.pdf
    • https://cdn.shopify.com/s/files/1/0429/2476/9436/files/zusiruvux.pdf
    • https://static.usrfiles.com/ugd/b8c837_26cbeba4ddf04da9969db20fa7e30476.pdf
    • https://static.usrfiles.com/ugd/b8c837_25f721a07d224e1392216c32a96e24b1.pdf
    • https://cdn.shopify.com/s/files/1/0432/5661/0969/files/xilezaj.pdf
    • https://cdn.shopify.com/s/files/1/0437/2421/0326/files/69924050543.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006540.bin
051e068fae4858c663fece702c97ff637b6b39697771fa888374e692a2ce117a
pdf-font-stream PDF embedded font (sfnt) at offset 0x6540 5776 bytes
font_01_sfnt_off0000796f.bin
f87bf1e5cc408e04c2689e0dc050dcea7e07c126c5f7852e1ef48d3d7eb17b5a
pdf-font-stream PDF embedded font (sfnt) at offset 0x796F 5896 bytes
font_02_sfnt_off00008d65.bin
415f75d79d5106fab10c1aa15609abddeddac2b3a56562a48b0a22995365be30
pdf-font-stream PDF embedded font (sfnt) at offset 0x8D65 11748 bytes