Malicious PDF — malware analysis report

Static analysis result for SHA-256 b0c2e4b96523b334…

MALICIOUS

PDF

42.4 KB Created: 2020-08-28 01:07:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 2d28adfe17db1c6aba7dc6226d7b4fa2 SHA-1: f33188d9e9d983382e5f6a6f02cdd3fb5f1ccd35 SHA-256: b0c2e4b96523b334228678a59f0b07b95c1d27494806396d9a31b82f6389fd4b
152 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, ttraff.com, which is designed to lure users to malicious content. The document body and embedded links suggest a content-luring tactic, likely for phishing or malware distribution. The presence of numerous links, many hosted on Shopify, points to a link farm strategy to improve search engine visibility for malicious content. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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.
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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=dq11+metal+slime+farming
    • http://milozup.dartendistrict.com/uploads/1/3/0/7/130775735/a533a344115d.pdf
    • http://zarikit.wicknscents.com/uploads/1/3/2/8/132815806/pafepimamuwoxi.pdf
    • https://cdn.shopify.com/s/files/1/0462/7274/1533/files/rival_rice_cooker_recipe.pdf
    • https://cdn.shopify.com/s/files/1/0434/8418/4742/files/futulu.pdf
    • https://cdn.shopify.com/s/files/1/0431/6656/4507/files/90866657020.pdf
    • https://cdn.shopify.com/s/files/1/0438/1330/6530/files/anticonvulsivantes_clasificacion.pdf
    • https://cdn.shopify.com/s/files/1/0428/4222/6854/files/99841470208.pdf
    • https://cdn.shopify.com/s/files/1/0433/9128/7450/files/magnetocrystalline_anisotropy.pdf
    • https://cdn.shopify.com/s/files/1/0432/8295/6443/files/html._displayfor_format_number.pdf
    • https://cdn.shopify.com/s/files/1/0436/0205/1229/files/dasananelawakamuvo.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005bd2.bin
b407c305d149cb76a60185e3779ae8f1ac92d25f8103bae1e1e0164201a523a1
pdf-font-stream PDF embedded font (sfnt) at offset 0x5BD2 3456 bytes
font_01_sfnt_off00006844.bin
ca50e986d88b407ddc30169ca08544372d6a0fa0ea293017d1e82515c37e8974
pdf-font-stream PDF embedded font (sfnt) at offset 0x6844 5264 bytes
font_02_sfnt_off00007a1a.bin
3d4493cfe9121d591e026bd034f1cc61e2f1486ce9ff8f573b237e56aeaa1ef2
pdf-font-stream PDF embedded font (sfnt) at offset 0x7A1A 10084 bytes