Malicious PDF — malware analysis report

Static analysis result for SHA-256 601287632804ba4d…

MALICIOUS

PDF

113.0 KB Created: 2020-12-25 05:35:59 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18
MD5: c391117ef74db44c2d2bdbc0d95d3fd4 SHA-1: 22c679c85d3ee17335d973d01a47ed67241e988a SHA-256: 601287632804ba4d37cdd897a5669a8814072095ba54a192f56f150d5d4daac2
156 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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/aws?utm_term=albion+online+solo+player+guide PDF link annotation
    • https://zoxuzuxebexot.weebly.com/uploads/1/3/0/9/130969059/9051060.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4494877/normal_5fc280c14bc8e.pdfIn PDF document text
    • https://zavetogodafewer.weebly.com/uploads/1/3/4/7/134709275/wejupu_ronegabeden_vavalabasaf_gesawopaba.pdfIn PDF document text
    • https://pizotiwedif.weebly.com/uploads/1/3/4/8/134868845/zetofov-lizemi-kafiwobilino-vuruluxekofopo.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379841/normal_5f8db1e636342.pdfIn PDF document text
    • https://bujupovira.weebly.com/uploads/1/3/4/4/134472582/7577825.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://uploads.strikinglycdn.com/files/49812b11-8c19-437d-b0d1-d12818a238eb/donoxezisuvaritojosuxagod.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a6d9efc5-dc8d-460b-9a3b-f384faea99b3/zopazukomet.pdfIn PDF document text
    • https://s3.amazonaws.com/polexebuj/40019091473.pdfIn PDF document text
    • https://s3.amazonaws.com/vabemavuputenif/41493022916.pdfIn PDF document text
    • https://s3.amazonaws.com/potevip/milaca_unclaimed_freight_facebook.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b053c9c8-8ff6-4fb2-b610-8284a08ddbdf/tikoxovakidetuvel.pdfIn PDF document text
    • https://s3.amazonaws.com/vibuvomomuv/tor_browser_for_windows_10_portable.pdfIn PDF document text
    • https://s3.amazonaws.com/vuraradaso/class_1_trailer_hitch_capacity.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/51214cec-f5a5-4510-b61c-f37305bccf97/gibawagujemilasis.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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00016ce3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x16CE3 5160 bytes
SHA-256: 111f7484e5de73f5c659992074cf681e08a4ca9b52f0230e85b4685c88832cf2
font_01_sfnt_off00017e62.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x17E62 12812 bytes
SHA-256: 714b2f37f340f705144c78051a1f6451919c1ff732723a1088df5c2dcb88dbd0
font_02_sfnt_off0001a8c7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1A8C7 4324 bytes
SHA-256: a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f

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