Malicious PDF — malware analysis report

Static analysis result for SHA-256 e167a87e2dd958bf…

MALICIOUS

PDF

44.9 KB Created: 2020-08-31 10:45:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7eda2c25775da6ea7ee81227b353e73b SHA-1: 23a171737610314b7007ac4e671262a8d0047e0c SHA-256: e167a87e2dd958bfae7b124c3a794c729ce0c885e8899ec89ca83c1982377979
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a link farm and a critical heuristic firing for a malicious redirector. The document body, though heavily obfuscated, contains the URL that triggered the malicious redirector heuristic. This suggests the PDF is designed to redirect users to malicious infrastructure, likely for further exploitation or phishing. No scripts were extracted from this sample.

Heuristics 3

  • 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.
  • 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/wix?keyword=guess+the+number+mind+trick
    • https://cdn.shopify.com/s/files/1/0434/8795/3053/files/wirekizox.pdf
    • https://cdn.shopify.com/s/files/1/0435/9431/7981/files/74622333129.pdf
    • https://cdn.shopify.com/s/files/1/0439/4627/9080/files/71057285523.pdf
    • https://cdn.shopify.com/s/files/1/0450/6048/9379/files/lagu_bad_boy_red_velvet_ilkpop.pdf
    • https://static.usrfiles.com/ugd/7f46b5_4b425f3ff65d4a26a3474d805739c308.pdf
    • https://static.usrfiles.com/ugd/33a16d_a5fe86fda57c471c8fb27add9f0485fb.pdf
    • https://static.usrfiles.com/ugd/2c8d66_348acb5fbb8d4ad3ba146c2ff38e9e34.pdf
    • https://static.usrfiles.com/ugd/0e2875_dca057629a304261ad81b7942147c4bd.pdf
    • https://static.usrfiles.com/ugd/ca32a8_18068ec536fd4ebe9e9eecd183b43b53.pdf
    • https://static.usrfiles.com/ugd/2f3ac6_ba2ef98052ba4b24850fc6c34f66fc86.pdf
    • https://cdn.shopify.com/s/files/1/0431/6400/8605/files/bajaj_ceiling_fans_catalogue_with_price.pdf
    • https://cdn.shopify.com/s/files/1/0430/7396/2145/files/longman_picture_dictionary_free_download.pdf
    • https://cdn.shopify.com/s/files/1/0432/3121/5774/files/92789235593.pdf
    • https://cdn.shopify.com/s/files/1/0434/8415/1974/files/android_navigation_component_with_bottom_navigation.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_off000070bb.bin
cd183849cf5b4614b45a78e056ec562a9551bf6116c7c24fe9a7d6d9edad0264
pdf-font-stream PDF embedded font (sfnt) at offset 0x70BB 5172 bytes
font_01_sfnt_off0000821a.bin
bc03f7b124a0038c3ee70c671d1a5fda06896589e04ac413b2a96e1735b7d579
pdf-font-stream PDF embedded font (sfnt) at offset 0x821A 10844 bytes