Malicious PDF — malware analysis report

Static analysis result for SHA-256 f89f3bfc8d685b6a…

MALICIOUS

PDF

67.2 KB Created: 2021-01-23 04:54:36 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-11
MD5: a60ccd4dee527a93934cab8411904a3b SHA-1: ea52e0e1c8e771f31d1fd5289271bc036d431848 SHA-256: f89f3bfc8d685b6a3266021461c504d109ddb96a4cad73d720999239a113eb11
214 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript T1203 Exploitation for Client Execution

This PDF file contains a large number of external links, many of which point to redirector infrastructure and link farms, indicating a phishing or malware distribution attempt. The ClamAV detection and ML classifier strongly suggest malicious intent. The embedded URLs are likely used to download and execute a second-stage payload, aligning with common phishing tactics.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://traffking.ru/aws?utm_term=nutritional+information+for+15+bean+soup In PDF document text
    • https://cdn.sqhk.co/sovokeduseb/S3M9gd6/39596161951.pdfIn PDF document text
    • https://kagoxikefo.weebly.com/uploads/1/3/4/6/134649289/gikidojawotev.pdfIn PDF document text
    • https://cdn.sqhk.co/takejirasomu/ZExyJV5/konikajalutexap.pdfIn PDF document text
    • https://cdn.sqhk.co/sejejajoxej/QXhaVji/zupiburugatolewikinon.pdfIn PDF document text
    • https://cdn.sqhk.co/tiwumixe/hgy3wjb/15596192469.pdfIn PDF document text
    • https://cdn.sqhk.co/kokademesuz/jf5hhEg/21826577766.pdfIn PDF document text
    • https://cdn.sqhk.co/votojuxosaf/3ifgfR7/rosonomoj.pdfIn PDF document text
    • https://vetudibe.weebly.com/uploads/1/3/5/3/135320479/rifovimewa.pdfIn PDF document text
    • https://cdn.sqhk.co/zowolanazew/qijhhaL/advertising_marketing_promotion_salary.pdfIn PDF document text
    • https://rofajubufilotol.weebly.com/uploads/1/3/1/3/131384128/2c187cf549b4be.pdfIn PDF document text
    • https://sakixuso.weebly.com/uploads/1/3/4/4/134488330/6e21b24e3fa1f.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://s3.amazonaws.com/xufoxorog/play_store_gift_card_codes_apk.pdfIn PDF document text
    • https://s3.amazonaws.com/lerezazo/35718726864.pdfIn PDF document text
    • https://s3.amazonaws.com/dewazewokib/zutulipimalaruwaraz.pdfIn PDF document text
    • https://s3.amazonaws.com/gezetega/how_to_unblock_private_numbers_android.pdfIn PDF document text
    • https://s3.amazonaws.com/jifesu/xunozorebiputarepu.pdfIn PDF document text
    • https://s3.amazonaws.com/fezenur/ruzetukuledujoripaxe.pdfIn PDF document text
    • https://s3.amazonaws.com/gowebabuxogiro/zotaloxapefejinufi.pdfIn PDF document text
    • https://s3.amazonaws.com/paxivogedewilu/exercise_34_review_sheet_frog_cardiovascular_physiology.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000bcf9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBCF9 5212 bytes
SHA-256: 46b602fe06148111cde394d0812dcec29b7195a5c8f8f4433eb9fb1adbe4d86b
font_01_sfnt_off0000cea0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCEA0 10024 bytes
SHA-256: db17646c42a19e92a7f3c32115e994a2f59fb8d2cab3c574cdfe412960a0409b
font_02_sfnt_off0000f0f4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF0F4 4324 bytes
SHA-256: b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c

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