Malicious PDF — malware analysis report

Static analysis result for SHA-256 94ecff99a7a8a799…

MALICIOUS

PDF

66.5 KB Created: 2020-08-08 12:20:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-26
MD5: 0af472016774d69bd9cb943494cd18f8 SHA-1: b5c2871e6512bc1d44a1828ac3b951633981e777 SHA-256: 94ecff99a7a8a79964279a9039ed63c7c69e5367c0c96a7843967200f6659c67
154 Risk Score

Malware Insights

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

The PDF contains numerous links, including one identified as a malicious redirector. The primary malicious link, 'https://ttraff.com/pify?keyword=administracion+publica+descentralizada+pdf', is designed to lure users to a potentially harmful website. The presence of a large number of external PDF links suggests a link farm or SEO manipulation tactic to distribute malicious content.

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=administracion+publica+descentralizada+pdf In PDF document text
    • http://files.guilizavaschi.com/uploads/1/3/1/3/131379296/c0cbabe04a6bc.pdfIn PDF document text
    • http://rabuj.carlyhaecktherapy.com/uploads/1/3/0/8/130813834/1ae80f303d1af2.pdfIn PDF document text
    • http://files.lastcallromanceband.com/uploads/1/3/1/4/131438658/1811979.pdfIn PDF document text
    • http://files.huiokawaiola.com/uploads/1/3/1/4/131453904/5489258.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3248/5793/files/benders_decomposition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/36283751979.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1945/3095/files/babotemaxewof.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6332/8411/files/58549008319.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3062/5947/files/jopawemojolu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/2534/9273/files/surah_al_rahman_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8062/3015/files/56819543091.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9780/1375/files/vofijaxatijuridapevamo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/rosetotirumeza.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2807/7992/files/fupirapifed.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000b6f9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB6F9 5364 bytes
SHA-256: 2ec7ae47dd7bdddeed92fae65460e7bbb4ad4e3710b654a6bdf030abd8615e1d
font_01_sfnt_off0000c914.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC914 11100 bytes
SHA-256: 2ee7015b14d4005b6a27561556146538870a89bef3ffa7af32dcb1ef2063d9a8
font_02_sfnt_off0000ecdc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xECDC 4324 bytes
SHA-256: a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f

Open this report in the interactive analyzer, or submit your own file for analysis.