Malicious PDF — malware analysis report

Static analysis result for SHA-256 1f56c81215ba8416…

MALICIOUS

PDF

35.9 KB Created: 2020-11-06 22:21:28 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-31
MD5: c7d653697db3f297e35d665943a589fc SHA-1: 7f62c31f427c052f51fbf251a4a578f31c21732f SHA-256: 1f56c81215ba84167a9d3f3368d663f58f468a7b487ffbea81cf2298cb49e2f8
154 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, which is likely intended to lead the user to a malicious download or phishing page. The document body and embedded links suggest a lure related to 'nba 2k14 apk obb', aiming to trick users into clicking the malicious URL. The ML classifier strongly supports the malicious verdict.

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://traffine.ru/aws?keyword=nba+2k14+apk+%252B+obb In PDF document text
    • https://lififamofupuge.weebly.com/uploads/1/3/4/3/134317858/medetez.pdfIn PDF document text
    • https://kinojapi.weebly.com/uploads/1/3/2/3/132302846/weponuvetanugeb-fonufaguki.pdfIn PDF document text
    • https://bogadisosupotaj.weebly.com/uploads/1/3/0/7/130776541/maruj.pdfIn PDF document text
    • https://latijazaw.weebly.com/uploads/1/3/4/3/134312978/4921384.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://monirasuwa.files.wordpress.com/2020/11/3801946379.pdfIn PDF document text
    • https://s3.amazonaws.com/wofaxil/sidi_crossfire_3_srs_boots_-_cairoli_le.pdfIn PDF document text
    • https://s3.amazonaws.com/remuv/ideology_and_ideological_state_apparatuses_text.pdfIn PDF document text
    • https://s3.amazonaws.com/wunupalezozerud/zovefitete.pdfIn PDF document text
    • https://s3.amazonaws.com/jamokaroxoj/basic_atomic_theory.pdfIn PDF document text
    • https://s3.amazonaws.com/tetazino/79191752903.pdfIn PDF document text
    • https://s3.amazonaws.com/gajabedafot/5592178963.pdfIn PDF document text
    • https://tufebofajo.files.wordpress.com/2020/11/9092157610.pdfIn PDF document text
    • https://s3.amazonaws.com/bisegilupuf/100_dollar_payday_loans_online.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_off00004db3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4DB3 4952 bytes
SHA-256: 6d0cf1dd25999ca8f8a406397c3db1169345d6f8478e592a1ebe1baf77ca51a5
font_01_sfnt_off00005eb4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5EB4 10720 bytes
SHA-256: 6453ff45a56463f13da87f85c13bfc1d0689e6c1c0938a3e6d128a0de99d92d6

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