Malicious PDF — malware analysis report

Static analysis result for SHA-256 f2e0cca86e6f1533…

MALICIOUS

PDF

36.9 KB Created: 2020-08-02 04:43:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: c1ddf17f6fc461588044efd9e6fb27b2 SHA-1: 9cacbc2329774b151b925c651eb5641b30f76281 SHA-256: f2e0cca86e6f15332eb4e187c7a6a21a370f10039bd0eaf45ba8da229934c0f9
150 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a link to a known malicious redirector, ttraff.cc, which is likely used to funnel victims to a malicious site. The document body, though heavily obfuscated, contains the same URL and appears to be a lure related to a 'trimble tsc3 manual pdf'. The presence of numerous other PDF links suggests a link farm or SEO poisoning tactic to increase visibility.

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=trimble+tsc3+manual+pdf
    • http://files.wren-project.com/uploads/1/3/1/3/131379420/wororoz-walif-temima-pikosaselegi.pdf
    • http://files.davisbaybc.com/uploads/1/3/0/9/130969505/8495416.pdf
    • http://files.gregpatmore.actor/uploads/1/3/0/7/130740496/muxudulimuwevug.pdf
    • http://files.coinpro.solutions/uploads/1/3/1/3/131398377/3644902.pdf
    • http://files.nichellerenee.solutions/uploads/1/3/1/4/131437308/8293b75a.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/1587610690.pdf
    • https://cdn.shopify.com/s/files/1/0429/1667/5740/files/93540912028.pdf
    • https://cdn.shopify.com/s/files/1/0427/4801/8855/files/simple_one_page_rental_agreement_word.pdf
    • https://cdn.shopify.com/s/files/1/0429/2732/5343/files/nunomegumij.pdf
    • https://cdn.shopify.com/s/files/1/0429/0484/6503/files/sowodesumu.pdf
    • https://cdn.shopify.com/s/files/1/0437/1572/3414/files/10170956559.pdf
    • https://cdn.shopify.com/s/files/1/0431/7341/3032/files/71286249939.pdf
    • https://cdn.shopify.com/s/files/1/0432/5530/0249/files/pevujutigumuv.pdf
    • https://cdn.shopify.com/s/files/1/0432/8282/5382/files/ponidutibizit.pdf
    • https://cdn.shopify.com/s/files/1/0430/8130/2167/files/jizida.pdf
    • https://cdn.shopify.com/s/files/1/0432/8731/4585/files/46807539415.pdf
    • https://cdn.shopify.com/s/files/1/0431/5804/4826/files/mopixuwokofaxonolufomu.pdf
    • https://cdn.shopify.com/s/files/1/0438/4551/7469/files/48970764798.pdf
    • https://cdn.shopify.com/s/files/1/0432/6080/5280/files/kewejenotalopufiwus.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_off000050ec.bin
c09cf9dc54cace1e54a8e7322b67e7831ad607d284c864f757b9947c780af5d7
pdf-font-stream PDF embedded font (sfnt) at offset 0x50EC 5552 bytes
font_01_sfnt_off000063ad.bin
7163966b9710eb78c6ef406b68570ee20486e73e3c5d1a54d3a2404867abf6e4
pdf-font-stream PDF embedded font (sfnt) at offset 0x63AD 10240 bytes