Malicious PDF — malware analysis report

Static analysis result for SHA-256 468e27222ebe0fb1…

MALICIOUS

PDF

80.0 KB Created: 2020-09-16 20:59:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 97eb316703e8e7adbd789ce3efc18ef5 SHA-1: ae3dffbb5f470fd0497d3715dfd43073416145f8 SHA-256: 468e27222ebe0fb1295125bed7318e6635ccc656b389b20b7de4a14ee85f55fe
184 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a critical heuristic firing for a malicious redirector link, specifically pointing to 'https://ttraff.me/wix?keyword=2018+cpc+study+guide'. Additionally, it exhibits a PDF link farm heuristic, indicating a large number of outbound links, with one example being 'http://files.moonwalksdetroit.com/uploads/1/3/1/1/131164009/romitofer.pdf'. The ML classifier also strongly flagged this PDF as malicious. The document body, though heavily obfuscated, contains the text '2018 cpc study guide' and the malicious URL, reinforcing the lure.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • 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.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://ttraff.me/wix?keyword=2018+cpc+study+guide In PDF document text
    • http://files.moonwalksdetroit.com/uploads/1/3/1/1/131164009/romitofer.pdfIn PDF document text
    • http://files.joshhayeswriter.com/uploads/1/3/1/4/131483955/kakukepewof.pdfIn PDF document text
    • http://guvube.heswallsquash.com/uploads/1/3/1/0/131070306/2765361.pdfIn PDF document text
    • http://pexatu.shajaceramics.com/uploads/1/3/1/8/131871740/4631657.pdfIn PDF document text
    • http://sogowa.reciprocalminds.com/uploads/1/3/1/4/131482995/7049471.pdfIn PDF document text
    • http://megeveji.clintholmesmusic.com/uploads/1/3/1/4/131407102/835124f1bc45.pdfIn PDF document text
    • http://wamiko.areabrooklyn.com/uploads/1/3/1/6/131637649/puxed_kexujewe_roduv_jamudutezibe.pdfIn PDF document text
    • http://files.louiserosejohnson.com/uploads/1/3/0/7/130739450/37c16d70272.pdfIn PDF document text
    • http://files.leahmichelleart.com/uploads/1/3/1/4/131453907/ginavuf.pdfIn PDF document text
    • http://files.fairgreenoutreach.com/uploads/1/3/0/9/130969708/kilunan-bideradenoledob-fezafexivadad-zagufep.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://011a2ca8-9afe-445b-9277-a00759f3a9c6.filesusr.com/ugd/681527_7b79f4feff914790aae238f10a650ba9.pdf?index=trueIn PDF document text
    • https://2832d55e-8682-443e-a788-9f7183a941af.filesusr.com/ugd/dcc11b_70f2553d3e19477993748c6ac85046f0.pdf?index=trueIn PDF document text
    • https://bbb6adaa-e996-4a76-91fe-dac8fba7fc9c.filesusr.com/ugd/e948c1_6cfdd88809a247d398c6a9fd98660ab8.pdf?index=trueIn PDF document text
    • https://cdn.shopify.com/s/files/1/0476/7957/0086/files/ramakirorupubamikobepop.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/4844/9686/files/vimedibukejimetasezutuwul.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0065/1158/files/89156373009.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6470/4662/files/naxisujitu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/7223/9269/files/colored_acrylic_sheets_canada.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f20a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF20A 2828 bytes
SHA-256: a17885b4fd577e0298a64705d5055d2ac7c2363fd7008e9cf236b3df412a17d8
font_01_sfnt_off0000fc04.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFC04 5428 bytes
SHA-256: 2a7c7b40f8bb8748292d6cde9ed66b887aea24c1832235baa047d5a8e8a60013
font_02_sfnt_off00010ea4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10EA4 10484 bytes
SHA-256: 3df63cf75d840feac68d4b620baf7fbbb2ab2293276dc0b03b25e66dcd57b3f2