Malicious PDF — malware analysis report

Static analysis result for SHA-256 ebb1686d72b0e633…

MALICIOUS

PDF

97.6 KB Created: 2020-12-19 00:53:22 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-31
MD5: e065d61a71011108523d263310431455 SHA-1: 67ccdef7044970bf370bae1717191ed3821eeb49 SHA-256: ebb1686d72b0e633f745c33dcf6e9632aecde59b4cd31bf56231bb16ded1134b
156 Risk Score

Malware Insights

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

This PDF document contains numerous external links, a common tactic for phishing or malware distribution. The primary URL, trafffe.ru, is suspicious and likely leads to a malicious site. The document's content, though heavily obfuscated, suggests a lure related to game modifications, aiming to trick users into visiting the malicious domain. The presence of many external links indicates a link farm or redirection scheme.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

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
  • 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://trafffe.ru/strik?utm_term=yugioh+bam+pocket+mod+apk PDF link annotation
    • https://ramakizuwag.weebly.com/uploads/1/3/4/3/134321509/6522164.pdfIn PDF document text
    • https://gozobamo.weebly.com/uploads/1/3/4/7/134714837/7326173.pdfIn PDF document text
    • https://tetizapafatig.weebly.com/uploads/1/3/4/6/134634663/kebofudam_tetagefebetelu_jexominobo.pdfIn PDF document text
    • https://litulivugaz.weebly.com/uploads/1/3/4/4/134463412/c01bd4b6.pdfIn PDF document text
    • https://luxexawasoju.weebly.com/uploads/1/3/4/1/134109261/fusoke_tevilu_dekudak_gikimu.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/fae0330e-c48f-4e10-9a03-b5ef1f293aae/20549175116.pdfIn PDF document text
    • https://s3.amazonaws.com/lovetijif/gw2_guild_trek_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/tikofaketonub/naruto_to_boruto_shinobi_striker_digital.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc4c1c6c30a162e0c6b3e12/t/5fd5f3a4c4373837b9ffe7e2/1607857063503/font_awesome._bootstrap_cheat_sheets.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fdc7d305fcdb718a17c69c1/t/5fdcfba767c3114891d494c6/1608317863594/angelfish_care_sheet.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbf699bbc819f1cf4d0e948/1606379964167/77391173179.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc53334a13a450bab107d72/t/5fd65f2472b1137fa9757ade/1607884582085/51364938774.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000114a7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x114A7 5344 bytes
SHA-256: 0b995adafc67342c794833e2bdfff7c49abe31d74b6969bed827b97d67076efd
font_01_sfnt_off000126ad.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x126AD 5752 bytes
SHA-256: 8cc70ca102c50832346ca36e1a685f9969b21bf752f61ef3bd9deea9b7b3b594
font_02_sfnt_off00013ac5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13AC5 11768 bytes
SHA-256: 2c78c7ffeac070b94f5fc5ce97feee771bffba8f6b49deb5d6c67e2dfd8c881c
font_03_sfnt_off00016246.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x16246 16504 bytes
SHA-256: 084659940f50cb290983e2e761216a804bee2868f813dba80510c3f9fb67ae88

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