Malicious PDF — malware analysis report

Static analysis result for SHA-256 5ae092579e99e868…

MALICIOUS

PDF

76.0 KB Created: 2021-01-19 21:21:26 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-07
MD5: fac96410aa1de37ab58d47cb22e6df89 SHA-1: 7a5524139bf1effc324049fb73203d11af258c0b SHA-256: 5ae092579e99e86853f09fdf8066a9c2c0d3f1cd120c1deb2724773a25d3e777
214 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF contains numerous embedded links, with one critical heuristic identifying it as a malicious redirector link pointing to 'https://cctraff.ru/123?utm_term=success+through+a+positive+mental+attitude+audiobook'. Another heuristic indicates a PDF link farm, suggesting the document's primary purpose is to drive traffic to external sites, likely for phishing or malware distribution. The ML classifier strongly supports the malicious verdict.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://cctraff.ru/123?utm_term=success+through+a+positive+mental+attitude+audiobook In PDF document text
    • https://site-1176447.mozfiles.com/files/1176447/google_sheets_textjoin.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4453579/normal_5fc62ef2c64ca.pdfIn PDF document text
    • https://kojaresojew.weebly.com/uploads/1/3/4/3/134312518/wogubobobolejemaneba.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4488332/normal_5febd096b5ff3.pdfIn PDF document text
    • https://tatedugede.weebly.com/uploads/1/3/4/3/134311852/3e72d0330a6ceb4.pdfIn PDF document text
    • https://zuzedunili.weebly.com/uploads/1/3/4/4/134460484/votuzogaga.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4380072/normal_5fc04cd2ae00b.pdfIn PDF document text
    • https://luxovifawus.weebly.com/uploads/1/3/4/3/134341193/zulorudevuka.pdfIn PDF document text
    • https://fanolukexepafo.weebly.com/uploads/1/3/0/9/130969893/xivuvopobuwixol.pdfIn PDF document text
    • https://fejajeger.weebly.com/uploads/1/3/4/6/134614243/kogunomop.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4393624/normal_5f9ce2e6812ed.pdfIn PDF document text
    • https://site-1176728.mozfiles.com/files/1176728/15013717882.pdfIn PDF document text
    • https://nepokotivo.weebly.com/uploads/1/3/2/8/132814168/528015e.pdfIn PDF document text
    • https://majijajivetik.weebly.com/uploads/1/3/4/2/134265766/5911218.pdfIn PDF document text
    • https://penugevofubelig.weebly.com/uploads/1/3/1/1/131164238/voweko.pdfIn PDF document text
    • https://site-1171105.mozfiles.com/files/1171105/paypal_app_free_download_apk.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/pofumapetat/blue_point_school_scarborough_maine.pdfIn PDF document text
    • https://s3.amazonaws.com/sosupejuxofedo/herbalism_guide_wotlk_horde.pdfIn PDF document text
    • https://s3.amazonaws.com/pusolefosex/rexowetizavosi.pdfIn PDF document text
    • https://s3.amazonaws.com/tifuwuw/19248395822.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_off0000eac8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEAC8 5852 bytes
SHA-256: bd6114f1382a0ff5475120cc6382ada2d74c45fcdf48385e9d1b9047364f25f9
font_01_sfnt_off0000fe8e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFE8E 10580 bytes
SHA-256: d0e02f8f4913feb0be0108184e1deb28832e21f42dbbc296d5c71800c849f649

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