Malicious PDF — malware analysis report

Static analysis result for SHA-256 0ed0529f2af31eea…

MALICIOUS

PDF

43.3 KB Created: 2020-08-02 04:56:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6c4c0f63f57c156b39af7b532b5395ca SHA-1: a544f018ff734dbbd3816c8af74b4a4519be562e SHA-256: 0ed0529f2af31eeaa80c0d7af53f671f9ef552d87574e7a1011e05b94a86b217
154 Risk Score

Malware Insights

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

This PDF file contains numerous embedded links, many of which point to a link farm designed to redirect users to malicious infrastructure. The primary malicious URL identified is https://ttraff.cc/pify?keyword=2003+jeep+liberty+owners+manual+pdf, which is flagged as a malicious redirector. The document body itself contains garbled text but also repeats the search query and the malicious URL, suggesting a SEO-based lure to drive traffic to malicious sites.

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=2003+jeep+liberty+owners+manual+pdf
    • http://files.bookhivebeerclub.com/uploads/1/3/0/9/130969910/f65beae6b726.pdf
    • http://files.5foot1ninja.com/uploads/1/3/1/3/131398164/xijavufaj.pdf
    • http://files.blindhockeymooses.com/uploads/1/3/1/0/131070604/8b904.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0440/7623/6950/files/10392471810.pdf
    • https://cdn.shopify.com/s/files/1/0428/2010/8455/files/girukunox.pdf
    • https://cdn.shopify.com/s/files/1/0437/6556/3549/files/lodosolosarifoziw.pdf
    • https://cdn.shopify.com/s/files/1/0430/6763/7917/files/lenasufopesobebutis.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/3785448733.pdf
    • https://cdn.shopify.com/s/files/1/0427/9340/2534/files/forepokebaduzoduzozidude.pdf
    • https://cdn.shopify.com/s/files/1/0434/0380/4839/files/figonodogogebajixituno.pdf
    • https://cdn.shopify.com/s/files/1/0428/9429/5203/files/chinese_birth_chart.pdf
    • https://cdn.shopify.com/s/files/1/0430/2775/9257/files/xudifebekinufezilulezemo.pdf
    • https://cdn.shopify.com/s/files/1/0433/7988/4186/files/84999065136.pdf
    • https://cdn.shopify.com/s/files/1/0431/0482/9602/files/64103733038.pdf
    • https://cdn.shopify.com/s/files/1/0430/3791/7345/files/bowolumiwesasugadujumeto.pdf
    • https://cdn.shopify.com/s/files/1/0427/9199/3500/files/paxokawerawolumimeno.pdf
    • https://cdn.shopify.com/s/files/1/0433/3414/0056/files/gusew.pdf
    • https://cdn.shopify.com/s/files/1/0438/8965/5960/files/febaxokefotujenofob.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006959.bin
45663d17aaa1a8b94c43808d46c60138e56615de0735d1c9118a1e3a062b9e57
pdf-font-stream PDF embedded font (sfnt) at offset 0x6959 5940 bytes
font_01_sfnt_off00007d88.bin
9376ec55c84fd875f5d449907c121f39af1f813a46ebfff5975c03b71d32a3f6
pdf-font-stream PDF embedded font (sfnt) at offset 0x7D88 10040 bytes