Malicious PDF — malware analysis report

Static analysis result for SHA-256 112ee3afefb99ff0…

MALICIOUS

PDF

75.0 KB Created: 2021-01-06 08:44:44 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-17
MD5: 37cf518b576ae8e5031a88fbf33ca7ee SHA-1: c31a490f38f7726fb06c34ff62ebf3283b2a2d53 SHA-256: 112ee3afefb99ff0bb7906330581d7da1a252f2c145435e6de64ea4641c9fcb2
156 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF file was flagged as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. The presence of a PDF link farm heuristic suggests the document is designed to redirect users to numerous external URLs, with one primary malicious URL identified. While no scripts were extracted, the structure and heuristics point towards a phishing or malware distribution scheme.

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=camp+chef+flat+top+grill+600 PDF link annotation
    • https://pigupapizot.weebly.com/uploads/1/3/4/4/134480908/gubupadobomedurosa.pdfIn PDF document text
    • https://manabuvajej.weebly.com/uploads/1/3/4/8/134847277/adb6af2fa0d8.pdfIn PDF document text
    • https://tuxibefogeja.weebly.com/uploads/1/3/4/3/134359070/8423608.pdfIn PDF document text
    • https://wurikosaradusif.weebly.com/uploads/1/3/1/3/131384544/5095386.pdfIn PDF document text
    • https://pukaxonimuno.weebly.com/uploads/1/3/4/4/134435323/pitidotopunoba_beviwilavunupe.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/56a9e172-fb71-4f60-b953-9d9f18bfa7f4/nigigesofuruxafizipuzu.pdfIn PDF document text
    • https://s3.amazonaws.com/votubukaxogilix/29082098987.pdfIn PDF document text
    • https://s3.amazonaws.com/metubevozisul/88432072305.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ab69c1f7-19a8-4717-b2a9-01cf120c0d45/pg_strike_gundam_waterslides.pdfIn PDF document text
    • https://s3.amazonaws.com/dobesogum/balance_sheet_of_a_manufacturing_company.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/dfd3573a-6385-440e-ad2a-d18e4330d492/give_one_word_answer.pdfIn PDF document text
    • https://s3.amazonaws.com/legenapi/8139303991.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/860dff2a-0e54-4151-ab9c-e5f1f5a9de5d/40109139493.pdfIn PDF document text
    • https://s3.amazonaws.com/muvemasoxaji/spider_man_homecoming_hd_wallpaper_free.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
    • http://www.geocities.com/mitra_anirban/hobbies.htmGNUIn PDF document text
    • http://www.gnu.org/copyleft/gpl.htmRegularIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000dc3f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDC3F 5452 bytes
SHA-256: 5cda81b75dfd12d78d5b64b0f56e1e3681f3eeb8a105d724650e04b6717cdb13
font_01_sfnt_off0000ee9b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEE9B 3720 bytes
SHA-256: a7c194c348f4bc26aad06ae1fa1eadf76503a3aca856ff80314c3d87a816eea9
font_02_sfnt_off0000f9fb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF9FB 10732 bytes
SHA-256: e0a45461e978561b92cf2f5267dfd9c6ee1080b941660c47ea7b70b8eb95c2c3

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