Malicious PDF — malware analysis report

Static analysis result for SHA-256 87d80cd2492055d1…

MALICIOUS

PDF

68.4 KB Created: 2020-12-20 11:33:19 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-14
MD5: b51f5205951615c5b01ae41dffac3e6d SHA-1: 7c461cb676e06e912f7fc4dac652d1d0074021f3 SHA-256: 87d80cd2492055d149409e3f4165bc9921fc3b3f7f27df0316a77b8225115337
214 Risk Score

Malware Insights

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

This PDF file contains a large number of links to external websites, many of which are likely part of a link farm designed to manipulate search engine results. The primary malicious URL identified, 'https://ggtraff.ru/wb?keyword=restaurant%20dash%20gordon%20ramsay%20cheats', suggests a lure related to game cheats. The presence of numerous PDF links and the ClamAV detection indicate a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://ggtraff.ru/wb?keyword=restaurant%20dash%20gordon%20ramsay%20cheats In PDF document text
    • https://sadewurepoko.weebly.com/uploads/1/3/0/7/130776460/dffc8af9b75312.pdfIn PDF document text
    • https://mutazodot.weebly.com/uploads/1/3/0/8/130874237/9973181.pdfIn PDF document text
    • https://tebuzanowazori.weebly.com/uploads/1/3/4/6/134632783/fa53eb138ce58cd.pdfIn PDF document text
    • https://koxulisel.weebly.com/uploads/1/3/4/6/134600043/59948938ef4728.pdfIn PDF document text
    • https://fitisasituwag.weebly.com/uploads/1/3/4/8/134846324/521305b44997.pdfIn PDF document text
    • https://xavujome.weebly.com/uploads/1/3/0/7/130739328/3490457.pdfIn PDF document text
    • https://nesiritu.weebly.com/uploads/1/3/4/6/134612540/lovobelopefokedi.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/xanebavifamopez/the_zahir_by_paulo_coelho.pdfIn PDF document text
    • https://s3.amazonaws.com/susopuzupure/le_journal_el_watan_d_aujourd_hui_en.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc15d59403f5353fd98fe44/t/5fc9833d52b5874c858746a2/1607041855205/digi_customer_rewards_program.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc28b4ea13a450babfe95ac/t/5fc535c39b1ed03538863bc4/1606759875300/geisha_house_madison_wi_reddit.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc366d6ab79f442f239893b/t/5fd1e9f3871f8c6e595f4129/1607592437712/carrom_board_game_download_apkpure.pdfIn PDF document text
    • https://s3.amazonaws.com/fazujo/92330337235.pdfIn PDF document text
    • https://s3.amazonaws.com/vetamedisoz/lananepatelufudetibo.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc558338787e879898974a6/t/5fcc43d1662d5e24e0962cd5/1607222225386/16122758522.pdfIn PDF document text
    • https://s3.amazonaws.com/vavabi/acrobat_writer_free.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_off0000cf32.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCF32 5428 bytes
SHA-256: e745a7d3c5bacb255929ee8743c2379820528125c575d50234aadecd832ddb2f
font_01_sfnt_off0000e190.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE190 10172 bytes
SHA-256: 8e05de6154032ffe91ce80aa2889583f494464b7eca5ecb503605a888f1197ab

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