Malicious PDF — malware analysis report

Static analysis result for SHA-256 ead0278a3b3378ed…

MALICIOUS

PDF

42.7 KB Created: 2020-08-27 17:13:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: f6fb781e032438beff4dd4c30258cb3e SHA-1: df43c9cc588df24cd533718f1f31ca1f2b45103c SHA-256: ead0278a3b3378ed53033f9e80b3c116636a72beda9ea3bd7444025805a25606
128 Risk Score

Malware Insights

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

The PDF file contains a prominent link that redirects to a malicious URL, disguised as a download for 'Need for Speed Underground'. This is further supported by heuristics indicating a malicious redirector and a link farm designed for SEO manipulation. The document body, though heavily obfuscated, contains the malicious URL and a reference to the game, reinforcing the lure. The presence of numerous links, including the primary malicious one, suggests an attempt to drive traffic to potentially harmful content.

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=need+for+speed+underground+pc+download+full+game
    • http://files.eawim.com/uploads/1/3/0/8/130814902/9171271.pdf
    • http://robebur.rehabmri.com/uploads/1/3/1/0/131070382/vumudafa.pdf
    • http://files.smilecommunicationsgroup.com/uploads/1/3/2/6/132681002/vebevemiru.pdf
    • http://files.holistically-happy.solutions/uploads/1/3/1/0/131070231/bowotogox_pakunidub.pdf
    • https://cdn.shopify.com/s/files/1/0437/4046/3255/files/28731991240.pdf
    • https://cdn.shopify.com/s/files/1/0427/4978/8327/files/ansi_z535_color_chart.pdf
    • https://cdn.shopify.com/s/files/1/0431/6699/0502/files/ahista_ahista_movie.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/7868051279.pdf
    • https://cdn.shopify.com/s/files/1/0433/5173/6471/files/3285809599.pdf
    • https://cdn.shopify.com/s/files/1/0438/3545/7696/files/school_counselor_monthly_report.pdf
    • https://cdn.shopify.com/s/files/1/0438/2782/2749/files/big_bang_theory_physics.pdf
    • https://cdn.shopify.com/s/files/1/0432/0316/6369/files/medimexunupikaxik.pdf
    • https://cdn.shopify.com/s/files/1/0437/3151/7592/files/evaluating_expressions_worksheet_6th_grade.pdf
    • https://cdn.shopify.com/s/files/1/0431/0158/5570/files/wodokusekesir.pdf
    • https://cdn.shopify.com/s/files/1/0435/5679/8613/files/minecraft_sphax_texture_pack.pdf
    • https://cdn.shopify.com/s/files/1/0437/3302/4929/files/bluejacking_seminar_report.pdf
    • https://cdn.shopify.com/s/files/1/0433/4374/1083/files/76145302587.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_off00006640.bin
65c09ba74709ba4027b9cec13f106ddd6a6d48085ec1228d5bd6fc88c7cff101
pdf-font-stream PDF embedded font (sfnt) at offset 0x6640 5536 bytes
font_01_sfnt_off00007913.bin
b0d539b3fce6eece5888560f57b607edc7fdc6e2b81f5331ffa532fca2831dff
pdf-font-stream PDF embedded font (sfnt) at offset 0x7913 10592 bytes