Malicious PDF — malware analysis report

Static analysis result for SHA-256 0c378dcece47ca14…

MALICIOUS

PDF

37.8 KB Created: 2020-10-11 11:05:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-26
MD5: 23910861d568bcf33b8320547ab9d6df SHA-1: 556baa3cbdc16cdf0d520e204d7cfbc6b27c5a1f SHA-256: 0c378dcece47ca1476a6eedeca30732b33652556906b40150e4c0b582ba9e5b4
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file was flagged as malicious by an ML classifier and contains a link to a known malicious redirector. The document body, though heavily obfuscated, contains text suggesting a lure related to "mini cooper wiring diagram r56" which points to the URL https://ttraff.club/pify?keyword=mini+cooper+wiring+diagram+r56. The PDF also contains a large number of external links, many of which point to benign content on strikinglycdn.com, but the primary link is to malicious infrastructure.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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://ttraff.club/pify?keyword=mini+cooper+wiring+diagram+r56 In 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/03ad808c-6079-48dd-abf1-81d750ae2f4f/41570397577.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ab945614-12b0-4056-9803-565999d9bf8c/49916077802.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c1e3a6f9-9b6d-487b-8ae0-33eef8fdb7b9/22214231051.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d2a1f96e-043e-42a5-b0a1-c3a6c71fce42/89209954167.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e2eae351-e207-40e4-8dcb-f796ff06f07d/migexinefinose.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9d3dac4a-3db2-494c-90ec-265285dea4de/linakokilimagatodavadome.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0d4a5e9f-91fe-4225-b0e0-41d7c2e9d086/wonuferaliloposurivotake.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/be04c1e1-fd4d-4c75-ba65-e993d2fb2361/47261591513.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7f1a2e6f-fb55-4144-9013-b307e2fd2ff1/19140514836.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/760dfc84-e5a0-4b5a-a33a-2ab17d3d5685/48349475753.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3dcc077e-fc6d-426d-9d78-c2c8850bc3b4/23420294183.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/72bc2f2e-8082-438b-862d-e12c465edf05/sijifalokuwila.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0480/9297/1172/files/rosamond_high_school_ca.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0604/2023/files/ecm_to_bin_converter.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0497/9225/4105/files/liquid_thermometer_walmart.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_off00005125.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5125 5560 bytes
SHA-256: 1d607d50652eeb40f8f1e48dc37c542a34d30308c087107ca7beac031f60c515
font_01_sfnt_off0000640d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x640D 12152 bytes
SHA-256: c7bdf654ae6c1f529b0ce72d6caca64071a04f88831fcc8d86024164fafdbc7f

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