Malicious PDF — malware analysis report

Static analysis result for SHA-256 9bb6c72d0106c3c9…

MALICIOUS

PDF

67.4 KB Created: 2021-02-12 02:22:59 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-26
MD5: 88b51ac08569c9c229d46c908117c236 SHA-1: ecffa6ef9d2e60168f41bf3f5d95487c62b97894 SHA-256: 9bb6c72d0106c3c9e3086907245ca9cb2cd399d1ef868611dda55b057752f9b4
196 Risk Score

Malware Insights

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

The PDF contains a lure for 'Animal Jam item generator 2020 no password' and an external URI pointing to a related URL, suggesting a phishing or scam attempt. The presence of numerous external PDF links also indicates a link farm, often used to boost SEO for malicious sites. ClamAV detected this as Pdf.Phishing.Trojan.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • 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.
  • Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
    Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
  • 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://maypoin.ru/wix?keyword=animal+jam+item+generator+2020+no+password PDF link annotation
    • https://talipugetajizan.weebly.com/uploads/1/3/4/8/134862074/bavefejazes.pdfIn PDF document text
    • http://homebig.space/isn_t_she_lovely_bass_sheet7c0gf.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4495846/normal_600a6cdebdfb7.pdfIn PDF document text
    • http://beautysss.site/cooped_up_synonym4mqkk.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4479439/normal_5fd701ebca7e6.pdfIn PDF document text
    • https://cdn.sqhk.co/bilanogakiw/ictY7hf/need_of_assessment_in_higher_education.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4468296/normal_5fe99107cc72f.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/magapeguwabe/state_of_digital_transformation_report_emea_2019.pdfIn PDF document text
    • https://s3.amazonaws.com/gaxuremewuger/27894631013.pdfIn PDF document text
    • https://s3.amazonaws.com/jivamubug/16915647802.pdfIn PDF document text
    • https://s3.amazonaws.com/vetamedisoz/online_flowchart_template_free.pdfIn PDF document text
    • https://s3.amazonaws.com/dudurat/paxijuxidemavimaxiradom.pdfIn PDF document text
    • https://s3.amazonaws.com/gurupixabogivaz/sipikitesudexigowanitefef.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_off0000c9ae.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC9AE 5712 bytes
SHA-256: 8425f26ae3217afd8dc73de981dfcd64f43c9ecdc763377140683aaafd2e0817
font_01_sfnt_off0000dd14.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDD14 10504 bytes
SHA-256: 228dec9345876f0b9462af5ea33f3cdcdb1267ce1ee0d7429fc6e2bb35ebd32c

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