Malicious PDF — malware analysis report

Static analysis result for SHA-256 89c97b4c88b7c492…

MALICIOUS

PDF

36.4 KB Created: 2020-08-21 19:59:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5a7f6262cb7c2810f2a718e61f584bf7 SHA-1: f2604e136d60edbb1b524ec43878a8582adff457 SHA-256: 89c97b4c88b7c492875b943d0e5ed0be007980fed0ddfde09c2470eeef947158
128 Risk Score

Malware Insights

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

The PDF contains a link farm and a malicious redirector, indicating a phishing or scam attempt. The primary malicious link, https://ttraff.com/pify?keyword=furniture+cad+dwg, is designed to lure users into clicking by appearing as a download for CAD files. The document body, though partially corrupted, contains the same lure text and the malicious URL, reinforcing the phishing intent. No scripts were extracted, but the PDF structure itself facilitates the malicious redirection.

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.com/pify?keyword=furniture+cad+dwg
    • http://somivim.autisticsunitedca.org/uploads/1/3/2/3/132303189/e7789.pdf
    • http://dilid.accelerate-sports.com/uploads/1/3/1/6/131636951/bevejufigirujeg.pdf
    • http://xemovimoz.enspirebrandcbd.com/uploads/1/3/2/6/132681072/muves.pdf
    • http://files.loudlibertarian.com/uploads/1/3/0/7/130738771/jeguzid_zusifami_jasapanomaj.pdf
    • https://cdn.shopify.com/s/files/1/0448/4956/1757/files/91802522228.pdf
    • https://cdn.shopify.com/s/files/1/0428/6873/6166/files/21519170727.pdf
    • https://cdn.shopify.com/s/files/1/0432/3403/3824/files/8526854974.pdf
    • https://cdn.shopify.com/s/files/1/0434/9224/5656/files/socrates_philosophy_about_self.pdf
    • https://cdn.shopify.com/s/files/1/0430/2356/4957/files/rawaxukirigifaremofi.pdf
    • https://cdn.shopify.com/s/files/1/0431/1701/9292/files/59401946120.pdf
    • https://cdn.shopify.com/s/files/1/0430/4352/0666/files/33256493162.pdf
    • https://cdn.shopify.com/s/files/1/0432/0005/3408/files/dulolewete.pdf
    • https://cdn.shopify.com/s/files/1/0439/2960/0168/files/nafemupivulu.pdf
    • https://cdn.shopify.com/s/files/1/0434/1052/2277/files/mekuwolaj.pdf
    • https://cdn.shopify.com/s/files/1/0430/6989/8914/files/86871266993.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_off00005030.bin
9b4f23acfb45a0c7867972116d768d1b9a018f6cddfad42323d0eb2d538e7b3b
pdf-font-stream PDF embedded font (sfnt) at offset 0x5030 4944 bytes
font_01_sfnt_off00006122.bin
d1c92a4a3614d95112603971683fce41cb37f5fc3face27cd0f1d78b73ce52c1
pdf-font-stream PDF embedded font (sfnt) at offset 0x6122 10548 bytes