Malicious PDF — malware analysis report

Static analysis result for SHA-256 0e6039d2002ba19d…

MALICIOUS

PDF

44.8 KB Created: 2020-08-03 03:16:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: f2f53247292b17f6d5f57cce41cef931 SHA-1: befb08c548e8a9b0ae10c92d8f3ea3279f198be0 SHA-256: 0e6039d2002ba19db372e507d1e6d39a2c8a4c9c817741a22392fae1976916c4
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains embedded links that redirect to malicious infrastructure, specifically identified by the 'PDF_MALICIOUS_REDIRECTOR_LINK' heuristic. The document body, though heavily obfuscated, contains a URL that appears to be a lure related to 'the gaming lemon gta 5'. The presence of multiple external PDF links also suggests a link farm or redirection attempt. No scripts were extracted, but the primary attack vector appears to be social engineering via a malicious link.

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.cc/pify?keyword=the+gaming+lemon+gta+5
    • http://files.juliakellerbassist.com/uploads/1/3/0/8/130814225/vevesozepumi_pivujudemi_zumakaje.pdf
    • http://files.edgeofhell.com/uploads/1/3/2/6/132681690/bogazujelozok-nafole-pivaz.pdf
    • http://files.monfortestatesdacula.com/uploads/1/3/2/6/132681002/226bb98.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • https://cdn.shopify.com/s/files/1/0433/5868/3291/files/14849525843.pdf
    • https://cdn.shopify.com/s/files/1/0432/5238/3904/files/bankofamerica._com_makeatransfer.pdf
    • https://cdn.shopify.com/s/files/1/0430/2045/1997/files/95394039710.pdf
    • https://cdn.shopify.com/s/files/1/0430/8025/3593/files/91216183750.pdf
    • https://cdn.shopify.com/s/files/1/0437/4944/1687/files/foneloba.pdf
    • https://cdn.shopify.com/s/files/1/0431/3455/0177/files/puvujenapobude.pdf
    • https://cdn.shopify.com/s/files/1/0431/6413/9674/files/suwapulojijikazudipofib.pdf
    • https://cdn.shopify.com/s/files/1/0438/8637/9160/files/47351951146.pdf
    • https://cdn.shopify.com/s/files/1/0431/1659/3312/files/53663969609.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/
    • http://scripts.sil.org/OFL

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006439.bin
e12c4795cf8c6588a8c10891a323ff2e121ac2c325b09850c3d753370c8f47c5
pdf-font-stream PDF embedded font (sfnt) at offset 0x6439 4688 bytes
font_01_sfnt_off00007405.bin
dcdf8bc4f1b039ac787e3d7b4be7db4efaf0bd2b9e9de195a17a4e870432dfdf
pdf-font-stream PDF embedded font (sfnt) at offset 0x7405 10608 bytes
font_02_sfnt_off00009832.bin
ce7e2e230a41ba6fc2d7d2240890c8289d67876d84a3d076d67c0b48111c8230
pdf-font-stream PDF embedded font (sfnt) at offset 0x9832 4324 bytes