Malicious PDF — malware analysis report

Static analysis result for SHA-256 e9c0dd6117ef6c79…

MALICIOUS

PDF

36.0 KB Created: 2020-08-19 06:04:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: aaf6a90e8a543671401414fee6b723a5 SHA-1: dc8334ca0a2bb565cde1ad13c729beb3daea79d8 SHA-256: e9c0dd6117ef6c793039e0a81fafb5b05248b8c5fdce069957237826ab8b6ff7
150 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, a common tactic for phishing and malware distribution. One critical heuristic identified a link to a known malicious redirector, ttraff.cc, which is used to obscure the final destination. The document body, though heavily obfuscated, contains text related to 'Fbn holdings annual report' and the malicious URL, suggesting a lure to trick users into clicking the link. The presence of a link farm further indicates a malicious intent to distribute content or redirect traffic.

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.cc/pify?keyword=fbn+holdings+annual+report
    • http://files.mwsphotostories.com/uploads/1/3/1/1/131164251/9992931.pdf
    • http://files.ukulelebuyingguide.com/uploads/1/3/1/3/131379552/lifarigaxepidub.pdf
    • http://files.strongsinglemomma.com/uploads/1/3/1/4/131437535/ronakopimagunil_fejovibi_xavukupazutano.pdf
    • http://files.texasartsandmusicfestival.com/uploads/1/3/2/6/132682607/8392982.pdf
    • https://cdn.shopify.com/s/files/1/0430/2897/1674/files/siginudimelalobufuj.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/38935964995.pdf
    • https://cdn.shopify.com/s/files/1/0431/2642/3701/files/cancer_pulmonar_en_mexico.pdf
    • https://cdn.shopify.com/s/files/1/0428/5703/7990/files/bhoot_bangla_old_movie.pdf
    • https://cdn.shopify.com/s/files/1/0435/0282/9734/files/federal_principal_business_code.pdf
    • https://cdn.shopify.com/s/files/1/0432/6372/1637/files/monetipakutovitidorovofu.pdf
    • https://cdn.shopify.com/s/files/1/0433/3263/2730/files/71693776011.pdf
    • https://cdn.shopify.com/s/files/1/0428/8803/6505/files/aadhar_card_password_format.pdf
    • https://cdn.shopify.com/s/files/1/0440/7502/4549/files/wadalubaxuvuligugepedilur.pdf
    • https://cdn.shopify.com/s/files/1/0440/0365/5830/files/free_weight_loss_meal_plans.pdf
    • https://cdn.shopify.com/s/files/1/0437/9531/6896/files/xapakuguvipa.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_off00004e47.bin
ba0f0abf43d73edb6c50e4be3fabe08957aeeaa5930f2a05f9aa56a086b0f2af
pdf-font-stream PDF embedded font (sfnt) at offset 0x4E47 5316 bytes
font_01_sfnt_off00006049.bin
8ab1e32427daece335acabd8d8d3ed0a1d4240846d7d728fb7a1ddb59945c1ee
pdf-font-stream PDF embedded font (sfnt) at offset 0x6049 10336 bytes