Malicious PDF — malware analysis report

Static analysis result for SHA-256 5de5ed5f95d99583…

MALICIOUS

PDF

33.0 KB Created: 2020-11-03 12:14:21 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 2770367d47d42a0f365dbda933dbfbdb SHA-1: 187b2b871109250545257c73c0b56cb06b5de5ad SHA-256: 5de5ed5f95d99583f31fc8dbe3ede8fbbe6cb2609a296bfb54fec5db9be295a3
94 Risk Score

Malware Insights

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

The PDF contains a malicious redirector link to 'https://ggtraff.ru/aws?keyword=animal+metamorphosis+drawings+easy', which is flagged by heuristics as malicious. The ML classifier also strongly indicated maliciousness. While no scripts were explicitly extracted, the presence of a malicious URL within the document body suggests an attempt to lure the user to a harmful site, likely as part of a phishing or malware distribution campaign.

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.
  • 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://ggtraff.ru/aws?keyword=animal+metamorphosis+drawings+easy
    • https://rabexowubomisuw.weebly.com/uploads/1/3/1/4/131407155/niluni_givutar_xazorewedewefu_dogotomedadej.pdf
    • https://xakezoram.weebly.com/uploads/1/3/4/4/134497816/vebapexozenu.pdf
    • https://musazowoxagaw.weebly.com/uploads/1/3/4/3/134323980/viwisetopatob-fimumapedugeb-xinobuzeboxuj.pdf
    • https://cdn-cms.f-static.net/uploads/4421056/normal_5f99e412c2b0a.pdf
    • https://cdn-cms.f-static.net/uploads/4369656/normal_5f8bde0f5bb56.pdf
    • https://jusemeki.weebly.com/uploads/1/3/4/5/134506960/8673899.pdf
    • https://cdn-cms.f-static.net/uploads/4365606/normal_5fa0c2f2aec15.pdf
    • https://cdn-cms.f-static.net/uploads/4384143/normal_5f98d590cde3b.pdf
    • https://nowigusoludi.weebly.com/uploads/1/3/4/2/134266380/winoleza.pdf
    • https://cdn-cms.f-static.net/uploads/4409606/normal_5f9ca39ba06a8.pdf
    • https://cdn-cms.f-static.net/uploads/4426823/normal_5f9d4ede4989a.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0433/5042/5750/files/kidafisimolajak.pdf
    • https://uploads.strikinglycdn.com/files/7c25f995-7bdb-4478-86cc-3161e742e9af/netolodezatisesa.pdf
    • https://uploads.strikinglycdn.com/files/ea4f40f4-1655-4ea4-811e-22edc271efdc/zujuxugimakolejavodidevog.pdf
    • https://cdn.shopify.com/s/files/1/0507/4826/0552/files/aravinda_sametha_veera_raghava_full_movie_watch_online_free.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_off000044c0.bin
bd5bdfcbf1fa97e4ede068e1955de5e335439f02aab6f7725f47f655e975947e
pdf-font-stream PDF embedded font (sfnt) at offset 0x44C0 5556 bytes
font_01_sfnt_off00005786.bin
b7aef142f96459415d927fd1850421b44952af1eb85f17c2895be4968e70023a
pdf-font-stream PDF embedded font (sfnt) at offset 0x5786 9240 bytes