Malicious PDF — malware analysis report

Static analysis result for SHA-256 9432352fa46ce882…

MALICIOUS

PDF

71.9 KB Created: 2021-01-14 07:22:53 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-07
MD5: 29c27ade53d376b52bf085bff6029a32 SHA-1: b5731b7057d95d422a6a544d10965641a21f94e8 SHA-256: 9432352fa46ce882d974f42f9c22bb3c63be13517eead724ae0958fe915406b8
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 link to 'traffking.ru' suggesting a phishing or scam lure related to software downloads. The ClamAV detection and ML classifier strongly indicate maliciousness, likely a trojan designed to redirect users to malicious sites or download further payloads. No scripts were extracted, but the PDF structure itself is indicative of a link farm or redirection tactic.

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
  • 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://traffking.ru/123?utm_term=lego+star+wars+the+complete+saga+apk+2020 PDF link annotation
    • https://vodiwisilob.weebly.com/uploads/1/3/2/6/132681054/dutoz_tixobegeloliwa.pdfIn PDF document text
    • https://cdn.sqhk.co/xubupigegi/jgigidH/ubereats_food_delivery_bag.pdfIn PDF document text
    • https://tuzisufuga.weebly.com/uploads/1/3/4/4/134458332/teturonesur.pdfIn PDF document text
    • https://nobewiga.weebly.com/uploads/1/3/5/3/135315034/9558337.pdfIn PDF document text
    • https://gasinokumujum.weebly.com/uploads/1/3/1/4/131437883/rifomutevirod.pdfIn PDF document text
    • https://gidelusibi.weebly.com/uploads/1/3/4/0/134040719/9884833.pdfIn PDF document text
    • https://poxapoxidofex.weebly.com/uploads/1/3/4/0/134016688/383907.pdfIn PDF document text
    • https://cdn.sqhk.co/bebetirifam/hejaich/lebara_top_up_germany.pdfIn PDF document text
    • https://bisatabezuniv.weebly.com/uploads/1/3/1/3/131398333/dakezinogixutifefe.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4373779/normal_5ffc14d6a1cd2.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/zuvovoxigumuz/tejezaragow.pdfIn PDF document text
    • https://s3.amazonaws.com/xalasawu/xapotejubopoduwevuga.pdfIn PDF document text
    • https://s3.amazonaws.com/tapelu/metropolismania_2_iso.pdfIn PDF document text
    • https://s3.amazonaws.com/jimugivos/ladexomorol.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_off0000deba.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDEBA 5716 bytes
SHA-256: f669f11c305f07b752741308ccbf46405eaa8e8f6dc933e269fba9c6471d3f51
font_01_sfnt_off0000f229.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF229 9396 bytes
SHA-256: b1a31dcd4cbcd9dd065daecef460486937de9b309832fabb4a900d757ae3ff88