Malicious PDF — malware analysis report

Static analysis result for SHA-256 4e06c34f55d27a11…

MALICIOUS

PDF

35.1 KB Created: 2020-08-10 04:41:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: bb4a3d19b3ac748ee9e24245ca69d007 SHA-1: 7597b51ccc7cf45e2383363e91b47b05690d432d SHA-256: 4e06c34f55d27a11067a099304fc0606cf74e6871ce4fc42ca7d9ec0681f2ea6
150 Risk Score

Malware Insights

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

The PDF contains a mass of external links, many pointing to Shopify domains, but one critical link directs to a known malicious redirector. The document body, though heavily obfuscated, contains the text 'Annadata book pdf' and the malicious URL, suggesting a lure to a malicious site. The presence of a malicious redirector link and the sheer volume of outbound links strongly indicate a phishing or scam attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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/pify?keyword=annadata+book+pdf
    • http://files.benobadia.com/uploads/1/3/0/7/130775592/besirakanepax-jofesixo.pdf
    • http://pusexexe.womanofgodministries.net/uploads/1/3/1/8/131856772/jikujiveli.pdf
    • http://files.ropitmaywood.com/uploads/1/3/2/6/132682929/3165608.pdf
    • http://files.pickyreader.com/uploads/1/3/0/8/130874655/5ad18c6.pdf
    • https://cdn.shopify.com/s/files/1/0429/2971/7407/files/41009680655.pdf
    • https://cdn.shopify.com/s/files/1/0432/6568/7717/files/jezan.pdf
    • https://cdn.shopify.com/s/files/1/0437/7070/8129/files/kanujuwojabo.pdf
    • https://cdn.shopify.com/s/files/1/0432/7142/2115/files/26824838772.pdf
    • https://cdn.shopify.com/s/files/1/0431/6725/2641/files/3306925550.pdf
    • https://cdn.shopify.com/s/files/1/0433/5131/0486/files/zigituxezesuxivedofo.pdf
    • https://cdn.shopify.com/s/files/1/0433/5150/7112/files/xibuwebepaver.pdf
    • https://cdn.shopify.com/s/files/1/0447/6187/4583/files/bromazepam_medley_bula.pdf
    • https://cdn.shopify.com/s/files/1/0432/5448/1054/files/apsrtc_bus_pass_online_application.pdf
    • https://cdn.shopify.com/s/files/1/0431/6938/2568/files/10911115321.pdf
    • https://cdn.shopify.com/s/files/1/0431/5050/8181/files/management_accounting_dictionary.pdf
    • https://cdn.shopify.com/s/files/1/0429/6795/7658/files/4298074871.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_off00004cae.bin
8a27bee5761661b0f3627f2e8d9e6b044ddc6edd7a3dfe93ec841ba77e6941b0
pdf-font-stream PDF embedded font (sfnt) at offset 0x4CAE 4924 bytes
font_01_sfnt_off00005d87.bin
52a327982ab38f0f6bcd1568d5b5d75d665d09a571a625ea96f033a1f4834f45
pdf-font-stream PDF embedded font (sfnt) at offset 0x5D87 10020 bytes