Malicious PDF — malware analysis report

Static analysis result for SHA-256 3e0af7188246e665…

MALICIOUS

PDF

68.8 KB Created: 2020-12-08 16:03:38 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-14
MD5: fb36e5b85ce188aa0eb029740a984411 SHA-1: d1515e5781bec343241088bd3eada139f50eecd1 SHA-256: 3e0af7188246e665bc92de5870ca23329fd05bbbc9729332915821e19bb5ecaf
156 Risk Score

Malware Insights

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

The PDF file contains numerous external links, with one prominent URL pointing to 'traffset.ru' which is associated with malicious activity. The heuristic 'PDF_SEO_LINK_FARM' indicates a large number of external links, suggesting a link farm or redirection scheme. ClamAV also detected this as 'Pdf.Phishing.Trojan'. The document body, though heavily obfuscated, contains keywords like 'minimizer ads free patch apk' which align with a deceptive lure.

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
  • 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.
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://traffset.ru/wb?keyword=minimizer%20ads%20free%20patch%20apk PDF link annotation
    • https://movobukibajub.weebly.com/uploads/1/3/4/5/134597216/zekajowaleba.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379960/normal_5f8eb8f09a016.pdfIn PDF document text
    • https://nulixedupalaz.weebly.com/uploads/1/3/0/7/130739510/5254704.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/zupenafud/active_learning_strategies_list.pdfIn PDF document text
    • https://s3.amazonaws.com/wibedubosateg/15917335121.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc38e39104edf1d7791b9fc/t/5fc82526d17d55300fa29410/1606952232787/76257579441.pdfIn PDF document text
    • https://s3.amazonaws.com/wudibirewuduto/cinemabox_apk_app.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbcf0da72f8b574a0f22e1c/1606217946769/data_link_layer_protocols_mcq.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc514788ef7301f8b2bec82/t/5fc67c8d3c6ccf69f33faf7c/1606843533484/videos_for_tiktok_status.pdfIn PDF document text
    • https://s3.amazonaws.com/wuniku/the_phone_cellar_ebay.pdfIn PDF document text
    • https://s3.amazonaws.com/leguvefu/darimavibotasorokadodufez.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc5a4096b97992eb57be95c/t/5fc96aab04e7723ed2f964b4/1607035563696/nokavugodudetiramas.pdfIn PDF document text
    • https://s3.amazonaws.com/bojafazes/old_man_and_the_sea_question_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/zetubakuz/xugodevuf.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbf59413c6ccf69f35599f4/1606375750990/ions_worksheet_answers.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_off0000c551.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC551 2880 bytes
SHA-256: aff11289bf87f92bc53c0e2abc335208e29b6db8a954e82fd0a5595ffa95d344
font_01_sfnt_off0000cf8f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCF8F 5480 bytes
SHA-256: 90d8d938b34314e1c0a886cbec703001a8ffc88bc0ccfb7d60b8f4278ae86877
font_02_sfnt_off0000e221.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE221 10616 bytes
SHA-256: c7d7bbbc37d9ba8eb071c610fb2b7e526b34734574c266dc949edc63f9b2944e

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