Malicious PDF — malware analysis report

Static analysis result for SHA-256 0554f3c946c754d0…

MALICIOUS

PDF

40.0 KB Created: 2020-08-06 01:04:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 34a2875e51dbc437b38d78fdecf5d2f8 SHA-1: 8c010e808a03e259aa73a745c98eb6b78cd4c7b3 SHA-256: 0554f3c946c754d0112ec3b8af0efeef364975583e97128cc4cac07f8dc8e268
154 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to potentially malicious redirectors or SEO link farms. The heuristic PDF_MALICIOUS_REDIRECTOR_LINK specifically flags a URL leading to ttraff.ru, indicating a redirection to malicious infrastructure. The ML classifier also strongly indicated maliciousness. While no scripts were extracted, the sheer volume of links and the identified redirector suggest an attempt to lure users to malicious content, likely for phishing or malware distribution.

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=la+armadura+de+dios+pdf+priscilla+shirer
    • http://files.bournadventure.com/uploads/1/3/1/4/131438180/jibevapofaxagi-xumivixowazid-worumiva-muxogaj.pdf
    • http://files.nottinghammassage.com/uploads/1/3/1/3/131384414/dfa929a821.pdf
    • http://files.simicollins.com/uploads/1/3/2/6/132682048/xififexub.pdf
    • http://files.moniquebosshardcurby.com/uploads/1/3/0/8/130874276/8affbb90.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0435/9048/4131/files/26460052806.pdf
    • https://cdn.shopify.com/s/files/1/0431/6649/8965/files/sexobekixinusegegeni.pdf
    • https://cdn.shopify.com/s/files/1/0440/9003/2278/files/all_star_superman.pdf
    • https://cdn.shopify.com/s/files/1/0437/1673/9222/files/73418956590.pdf
    • https://cdn.shopify.com/s/files/1/0430/8313/7178/files/majewitadavisagom.pdf
    • https://cdn.shopify.com/s/files/1/0430/6819/4978/files/57573740698.pdf
    • https://cdn.shopify.com/s/files/1/0436/1987/7026/files/tetojatafisamavilemigivuv.pdf
    • https://cdn.shopify.com/s/files/1/0430/6383/6834/files/todudibujafosanasi.pdf
    • https://cdn.shopify.com/s/files/1/0433/7106/9594/files/47354527307.pdf
    • https://cdn.shopify.com/s/files/1/0437/2905/9989/files/danadebitogib.pdf
    • https://cdn.shopify.com/s/files/1/0431/8255/5297/files/finurokago.pdf
    • https://cdn.shopify.com/s/files/1/0432/6152/6166/files/vadagavexibowelomepitoj.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_off00005c94.bin
eae2833eb6b157adf7625baecdaf865730b833d5f24bca9d105ccf8952494363		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5C94 5336 bytes
font_01_sfnt_off00006e8f.bin
fd560161f356b7037c74b402a32e11a5552f675e4941dcda26df7427e51b9a81		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6E8F 10640 bytes

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