Malicious PDF — malware analysis report

Static analysis result for SHA-256 ed5fd0c56a3b2e2b…

MALICIOUS

PDF

51.8 KB Created: 2020-08-07 18:38:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-26
MD5: 95590580e01f48b243cda4591b343397 SHA-1: 07e4b0033eddbc795149ef40f588b93934504586 SHA-256: ed5fd0c56a3b2e2b87f1a13ff5e9e6f184525def03155fbf67298c465c4f9dab
182 Risk Score

Malware Insights

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

The PDF contains numerous links, with one identified as a malicious redirector pointing to 'ttraff.com'. The document body, though heavily obfuscated, includes this URL and others, suggesting a lure to external malicious content. The presence of a download button lure and callback lure heuristics further supports a phishing or scam attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=bhu+bsc+ag+syllabus+pdf In PDF document text
    • http://betuzu.amindfulmosey.com/uploads/1/3/1/4/131407552/6718198.pdfIn PDF document text
    • http://files.scwcbd.com/uploads/1/3/1/6/131637419/maloxapex-buwanufokig.pdfIn PDF document text
    • http://lokijes.1980sgold.com/uploads/1/3/0/7/130775403/rapolep.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/1/0432/0008/6180/files/59804171072.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5156/4707/files/videxetisusajipot.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8994/3975/files/carabao_grass_as_paper.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3022/3775/files/mukabaxobufigumesodu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3685/8776/files/zilozizuterulizejepomiz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7946/7170/files/bebusorelapenuvom.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5986/1909/files/zefun.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4777/8469/files/hp_to_kw_hours.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5259/6374/files/vigijid.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0491/1006/files/wonej.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3694/2234/files/weed_eater_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0742/6216/files/80988217669.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_off00008c84.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8C84 5612 bytes
SHA-256: 7fda78ae7de3831325290b25517d8802c5c537d8f69627c7acd5d0685c343d00
font_01_sfnt_off00009fab.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9FAB 10324 bytes
SHA-256: dbd942a985f64633f2cefdc3909784540457a876046dd14921b158cabf295f94

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