Malicious PDF — malware analysis report

Static analysis result for SHA-256 c77c6b062ec509b1…

MALICIOUS

PDF

83.2 KB Created: 2020-10-23 11:09:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: c6a9551c7bc03497503bc4f17a3b9f10 SHA-1: 1774dc4a1dfaa830202d2806ede11246bed27686 SHA-256: c77c6b062ec509b1af49214d96f55d3358542531976da2323f099b5e4acf5108
154 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.me/123?keyword=programme+nutrition+musculation+prise+de+masse+pdf'. This indicates the document's primary purpose is to lure the user to this malicious URL. Although no scripts were explicitly extracted, the PDF structure and embedded link suggest an attempt to exploit user interaction, likely for phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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.me/123?keyword=programme+nutrition+musculation+prise+de+masse+pdf
    • https://cdn-cms.f-static.net/uploads/4374700/normal_5f8aeb71e4782.pdf
    • https://cdn-cms.f-static.net/uploads/4365619/normal_5f872b93da47b.pdf
    • https://cdn-cms.f-static.net/uploads/4379240/normal_5f9244a07a798.pdf
    • https://cdn-cms.f-static.net/uploads/4379219/normal_5f8c092a4c053.pdf
    • https://cdn-cms.f-static.net/uploads/4374848/normal_5f8d15624da01.pdf
    • https://cdn-cms.f-static.net/uploads/4387582/normal_5f9242626d55d.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/wumodukubaru/punctuation_worksheets_kindergarten.pdf
    • https://s3.amazonaws.com/felasorarabipis/resoluo_2106_da_assembleia_geral_das_naes_unidas.pdf
    • https://s3.amazonaws.com/susopuzupure/pdf_to_autocad_converter_app.pdf
    • https://s3.amazonaws.com/zuxadol/breviary_in_english.pdf
    • https://s3.amazonaws.com/kavitokolezub/7100088885.pdf
    • https://s3.amazonaws.com/zunaduxa/54981412522.pdf
    • https://s3.amazonaws.com/wilugugo/acog_cervical_cancer_screening_guidelines.pdf
    • https://s3.amazonaws.com/memul/ruzefapazubawuzi.pdf
    • https://s3.amazonaws.com/juvuraguvutoxif/17782263977.pdf
    • https://uploads.strikinglycdn.com/files/2151a650-d250-4789-8352-1393a4dd2d96/7147142123.pdf
    • https://uploads.strikinglycdn.com/files/d0b1dcdc-b142-4691-b5a7-85e1cc6bd3de/edipo_rei_moral_da_historia.pdf
    • https://cdn.shopify.com/s/files/1/0437/4816/3738/files/vasog.pdf
    • https://cdn.shopify.com/s/files/1/0499/4990/0955/files/93835233652.pdf
    • https://cdn.shopify.com/s/files/1/0434/5161/3351/files/nikukonetidaw.pdf
    • https://cdn.shopify.com/s/files/1/0432/2626/7816/files/robert_dream_daddy_quotes.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
    • http://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e8dd.bin
62dc2f5e785c3ebd5065e211ef1d1616fb65ae3df2171a00a363744a426f4bf2		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE8DD 5476 bytes
font_01_sfnt_off0000fb5d.bin
daad3f347a4f42f432ee9983e619a7c063e36761dba5934b469418034847e28e		 pdf-font-stream PDF embedded font (sfnt) at offset 0xFB5D 1800 bytes
font_02_sfnt_off000103eb.bin
c271f56274bc6bcb9a6c1f774924c2423392948187e9fbe15fa4e686c429de56		 pdf-font-stream PDF embedded font (sfnt) at offset 0x103EB 10836 bytes
font_03_sfnt_off000128a1.bin
aad9bc0f36eadc3314e08670b59090120051e308b357201f134af3d0b781b2b0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x128A1 16312 bytes

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