Malicious PDF — malware analysis report

Static analysis result for SHA-256 30d037eab79198f5…

MALICIOUS

PDF

76.5 KB Created: 2020-11-17 07:44:28 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 262dbaa9d9f41e28c8b3c053b59de1dd SHA-1: b1867c902fe89520c92c8ac40ffeb23d505b6150 SHA-256: 30d037eab79198f5b7550e5dde6756b92f625c76a8a42c83942778309e205546
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 0.9997

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
  • 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=township+game+cheats+for+android+free+download PDF link annotation
    • https://buliduxefexefux.weebly.com/uploads/1/3/1/6/131636978/disufubinijodop.pdfIn PDF document text
    • https://zitavumerut.weebly.com/uploads/1/3/4/4/134465292/d6687d9dba82dc2.pdfIn PDF document text
    • https://venepefo.weebly.com/uploads/1/3/4/6/134666716/3471b44824.pdfIn PDF document text
    • https://larogarokod.weebly.com/uploads/1/3/4/0/134018293/b2fa47.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370777/normal_5f8b024f8270b.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/26b50a70-61d1-458c-a4dc-9f0d71c22a19/lumatelabofazowaparite.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4b8ae34a-2f85-4fb8-b1de-7d11524b4127/heavy_rain_trophy_guide_walkthrough.pdfIn PDF document text
    • https://s3.amazonaws.com/kotodur/phosphoric_acid_lewis_structure_with_formal_charges.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c60be19c-963c-44eb-a0e7-a484315044d6/st_dorothy_parish_bulletin.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1dc2ca3a-1b49-4b2e-a3dd-eaa3e947a352/xavawimuxibugeginuso.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a2798ff3-45ea-49a7-849e-53268c29a93c/kunajirojezagogabekinudeg.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/fc155a37-80cf-466d-a4e7-7d68ac9e7be1/81409556161.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_off0000da3e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDA3E 5400 bytes
SHA-256: 748bdc1ab86ebb4397406cb044a68cea081e7c6f826b0045f0cd6927b67898fd
font_01_sfnt_off0000ec79.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEC79 12392 bytes
SHA-256: a08a7e27c6213ff69ceaa569356a8c7bdefb6f0bec14e45494970b9d22fea3a5
font_02_sfnt_off00011502.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11502 4324 bytes
SHA-256: b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c

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