Malicious PDF — malware analysis report

Static analysis result for SHA-256 62173a3214662e52…

MALICIOUS

PDF

46.2 KB Created: 2020-08-18 16:46:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 2be895472b2bd5a47111234374e4abce SHA-1: e72afdde1d5ace1cf4e33bb6a9ecabef802fd374 SHA-256: 62173a3214662e52521c73373ed11a839f4c18eaf3bedf56c73b092dbcd60604
154 Risk Score

Malware Insights

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

The PDF document contains a large number of embedded links, identified as a link farm, designed to redirect users to external sites. One of these links, 'https://ttraff.ru/pify?keyword=agreement+on+agriculture+wto+pdf', points to a known malicious redirector. The document's structure and the presence of numerous links suggest an attempt to distribute malicious content or phish for information by overwhelming the user with choices that lead to harmful destinations.

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.ru/pify?keyword=agreement+on+agriculture+wto+pdf
    • http://files.hornsbyptsa.org/uploads/1/3/1/3/131379434/bomujakurufilo.pdf
    • http://files.timetraitor.com/uploads/1/3/0/7/130774990/zanomolib-nibev.pdf
    • http://files.cyclenewengland.com/uploads/1/3/1/4/131438418/sotuverulixip.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • https://cdn.shopify.com/s/files/1/0430/9119/8112/files/kifazarubu.pdf
    • https://cdn.shopify.com/s/files/1/0428/6945/7063/files/89383739488.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/93880590480.pdf
    • https://cdn.shopify.com/s/files/1/0431/3861/3415/files/2961197694.pdf
    • https://cdn.shopify.com/s/files/1/0439/2747/0235/files/82982606138.pdf
    • https://cdn.shopify.com/s/files/1/0431/3710/6087/files/74811995137.pdf
    • https://cdn.shopify.com/s/files/1/0433/8542/1978/files/administracion_financiera_internacional.pdf
    • https://cdn.shopify.com/s/files/1/0434/2752/8861/files/tutorial_point_c_language.pdf
    • https://cdn.shopify.com/s/files/1/0440/5323/3814/files/6th_grade_math_placement_test_california.pdf
    • https://cdn.shopify.com/s/files/1/0429/0566/5703/files/48166576776.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_off000068ed.bin
f584f21f7ccd7fa1527e9336e46414c9f68e141cd3645f2b0ff95e6937d5f7dd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x68ED 5260 bytes
font_01_sfnt_off00007ac4.bin
89164d8131189201a079b3ee5b6d7f53c28f9d4417f4c1510c337e605c075319		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7AC4 10356 bytes
font_02_sfnt_off00009e22.bin
b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9E22 4324 bytes

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