Malicious PDF — malware analysis report

Static analysis result for SHA-256 f3add67ff6263a9b…

MALICIOUS

PDF

34.6 KB Created: 2020-11-03 08:11:26 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-14
MD5: 073ead8a9fbb823c9fd0a6aa42f55f84 SHA-1: 9131bf6a9f294da3b3e2996d72c4ada3bfbea40e SHA-256: f3add67ff6263a9b52b9bc0b7ee0ff5a3bd982e62bd941cb97e1ee086499daee
94 Risk Score

Malware Insights

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

The PDF contains a link disguised as related to a game, which redirects to known malicious infrastructure. The ML classifier also flagged this PDF with high confidence. No scripts were extracted, but the embedded link is the primary indicator of malicious intent, likely leading to a phishing or malware download site.

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/123?keyword=tu+46+airplane+game+unblocked In PDF document text
    • https://jufavufopu.weebly.com/uploads/1/3/4/3/134340263/wutinudiwosuwagow.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0502/1047/2129/files/my_hero_academia_episode_61_english_dubbed.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/50ae83cb-f6bb-4a5f-aca7-c3a250c44c1c/lewimebefataxudupepoxazom.pdfIn PDF document text
    • https://s3.amazonaws.com/sugowubuf/livukizaxepasuligemuxub.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0913/0143/files/arbitration_vs_adjudication.pdfIn PDF document text
    • https://s3.amazonaws.com/remoxi/kuteda.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0502/2774/0827/files/xixofarujubojijasun.pdfIn PDF document text
    • https://s3.amazonaws.com/tometubufimopim/wolepitof.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5407/8871/files/body_solid_exm2500s_manual.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e29c7cf1-a66f-40de-a58f-90de5dd1c745/zadawudofibejodewawiwivop.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0504/8431/4274/files/38452962095.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0482/9937/6802/files/50432953491.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d7e1961a-e14d-43fd-a758-8c914db4b333/counter_strike_1.6_oyunsunucum_indir.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000048cd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x48CD 5612 bytes
SHA-256: 74fffd53047f1e154ffb8102e840892e26b8b2120b11932bf582bd41ffda8cb3
font_01_sfnt_off00005bc6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5BC6 10064 bytes
SHA-256: df3c8b390c0c763952f9e245ca02f1806d814d03c1830868cacab2fbeee05031