Malicious PDF — malware analysis report

Static analysis result for SHA-256 f5ae4f18d91491c2…

MALICIOUS

PDF

43.7 KB Created: 2020-08-24 19:48:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 9edbea484d1cef17c83712030088f917 SHA-1: 585523d62f474718311f224593d8afb265e1f70a SHA-256: f5ae4f18d91491c28334fda6df3e56554f25036835da2f1eab1c6ba910d8beb0
150 Risk Score

Malware Insights

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

The PDF document was flagged by multiple critical heuristics for containing a malicious redirector link and a large link farm. The primary malicious URL identified is https://ttraff.ru/pify?keyword=herblock+special+report. The document body contains garbled text, suggesting it is not intended for direct user consumption but rather as a container for malicious links. The presence of numerous embedded links, including those pointing to Shopify domains, indicates a likely attempt to distribute malware or conduct phishing by luring users to external sites.

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.ru/pify?keyword=herblock+special+report
    • http://files.azwatersolutions.com/uploads/1/3/1/4/131453316/vagugu-luvukabaf-rododuxijo-vakozuruzebone.pdf
    • http://files.drboydthechemist.com/uploads/1/3/1/4/131406649/aff9135d5f7.pdf
    • http://files.mrsbscusd.com/uploads/1/3/1/4/131407155/zonutidigobi.pdf
    • http://files.auscamfreedomproject.org/uploads/1/3/1/4/131437530/domejafofovafi_ratewefutu_remavixoxufinuk.pdf
    • http://xuled.comprehensivewellnesssolutions.com/uploads/1/3/1/4/131413418/rovivatipazi-botugisuda-pijuput-lipajojudowu.pdf
    • http://xuled.comprehensivewellnesssolutions.com/uploads/1/3/1/4/131413418/rovivatipazi-botugisuda
    • https://cdn.shopify.com/s/files/1/0436/9969/9866/files/rotufovulokebobajifin.pdf
    • https://cdn.shopify.com/s/files/1/0434/9624/3364/files/70005673927.pdf
    • https://cdn.shopify.com/s/files/1/0433/8361/9736/files/desago.pdf
    • https://cdn.shopify.com/s/files/1/0432/2148/3687/files/barso_re_megha_megha_naa_songs.pdf
    • https://cdn.shopify.com/s/files/1/0431/0378/1015/files/bipolar_disorder_questionnaire.pdf
    • https://cdn.shopify.com/s/files/1/0433/1021/9422/files/wimazufipeturopanetifuz.pdf
    • https://cdn.shopify.com/s/files/1/0434/4646/8769/files/26439902950.pdf
    • https://cdn.shopify.com/s/files/1/0430/6596/6754/files/92960750800.pdf
    • https://cdn.shopify.com/s/files/1/0430/8307/1642/files/jisiziferajuvigu.pdf
    • https://cdn.shopify.com/s/files/1/0446/1517/2259/files/fisiopatologia_de_la_cirrosis_hepatica_alcoholica.pdf
    • https://cdn.shopify.com/s/files/1/0433/5714/3205/files/rovuliwikuromabebonut.pdf
    • https://cdn.shopify.com/s/files/1/0432/1456/9632/files/nirakomitivowozutewazik.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_off00006c5e.bin
c3fbb5200f21d76891e1cfec93525914f45d5f82dffe1ca923a6fe0c2574f60b
pdf-font-stream PDF embedded font (sfnt) at offset 0x6C5E 5092 bytes
font_01_sfnt_off00007dae.bin
eadb712de4bc82d3e0d36719f24bebc323313f9d3caba1df4fac4127930f0170
pdf-font-stream PDF embedded font (sfnt) at offset 0x7DAE 10564 bytes