Malicious PDF — malware analysis report

Static analysis result for SHA-256 34d68c22573e5081…

MALICIOUS

PDF

40.6 KB Created: 2020-08-08 13:08:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: bc6e602d359cd5a14f6dbd470800b941 SHA-1: c60c1ed0ffa9c90922651db560833780399ed2bb SHA-256: 34d68c22573e5081f5ba4ebab57f9fe8eb06cc9f590a6b59878909e62fc96965
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 URL, indicating a phishing or scam attempt. The document body, though heavily corrupted, contains text related to 'free business card templates pdf' and the malicious URL, suggesting a lure. The heuristic PDF_MALICIOUS_REDIRECTOR_LINK confirms the presence of a link to known malicious infrastructure.

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=free+business+card+templates+pdf
    • http://files.swingstocktraders.com/uploads/1/3/0/7/130776263/sotanijonux.pdf
    • http://files.mistymartinez.com/uploads/1/3/1/6/131606127/wiwufar-saxopudujarus-zuderufe.pdf
    • http://files.bluestone406.net/uploads/1/3/1/1/131164431/660c091af83.pdf
    • http://rotenapof.saspruikle.com/uploads/1/3/0/7/130739430/2943932.pdf
    • https://cdn.shopify.com/s/files/1/0433/2965/0843/files/73508535400.pdf
    • https://cdn.shopify.com/s/files/1/0429/5337/5897/files/54316143283.pdf
    • https://cdn.shopify.com/s/files/1/0435/7586/9599/files/zenuduj.pdf
    • https://cdn.shopify.com/s/files/1/0433/3702/3656/files/bosniak_2020.pdf
    • https://cdn.shopify.com/s/files/1/0428/8380/9439/files/gobeguwotupaj.pdf
    • https://cdn.shopify.com/s/files/1/0437/0730/2037/files/samumugudesiligopozakudo.pdf
    • https://cdn.shopify.com/s/files/1/0431/9500/7137/files/canonization_of_the_new_testament.pdf
    • https://cdn.shopify.com/s/files/1/0433/7310/1214/files/taboxoxuxolowameno.pdf
    • https://cdn.shopify.com/s/files/1/0437/4609/9349/files/water_pollution_project_in_marathi_download.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_off00006058.bin
23c31a61656c213f468e708ac743fe77edf2bf54ae4944881a1c78d82c61bb50
pdf-font-stream PDF embedded font (sfnt) at offset 0x6058 5396 bytes
font_01_sfnt_off00007296.bin
fe961299eaeeef8420d6f3ec251f6e736944b4c4e9cabda4b7ede8ccfe3db44d
pdf-font-stream PDF embedded font (sfnt) at offset 0x7296 10304 bytes