Malicious PDF — malware analysis report

Static analysis result for SHA-256 028e00a1c0064158…

MALICIOUS

PDF

70.6 KB Created: 2020-11-06 10:49:17 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 6051d6390c90b3ed6a060dc047459d31 SHA-1: b791ef190ba6306d5453bbbedc9425deff0b4b89 SHA-256: 028e00a1c0064158fc1834c0363286deda064f9eacac9eaa1c6c17de5ec7554d
154 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

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

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://gettraff.ru/123?keyword=hominin+vs+hominid In PDF document text
    • https://cdn-cms.f-static.net/uploads/4368469/normal_5f92c538b3029.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369166/normal_5f96f20c46aed.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/5d76063f-02cf-4e3f-9038-8dc12f9a1188/88991246630.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0505/5610/8963/files/58895561828.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0491/8489/9238/files/learning_python_github.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9a963996-1026-43f8-91c5-a4b469faf5c4/argus_c3_owners_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/wonoti/85120125061.pdfIn PDF document text
    • https://s3.amazonaws.com/mubefula/98736265895.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/83ab506e-4c63-4935-9ed6-869759bf55a4/neiman_marcus_cookbook.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4651d4cc-a080-4709-a8da-241703d3ec9e/dexirukinu.pdfIn PDF document text
    • https://s3.amazonaws.com/rowubunak/zukenoji.pdfIn PDF document text
    • https://s3.amazonaws.com/jevuxozazebazug/iptv_reviews_2019.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c1aa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC1AA 2948 bytes
SHA-256: a827dd9282368be51964487fd9b701b43eafae4fd9131bd3819bb2195bfb191e
font_01_sfnt_off0000cc2e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCC2E 4748 bytes
SHA-256: e1c78f17072fa547b4f369fa92a575a92ce42797a2272683ba2e9387016d745f
font_02_sfnt_off0000dc28.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDC28 1716 bytes
SHA-256: b744d20329a21ba1921c870a4deaacb4064f710d75eb1a58e31c0067c31195cd
font_03_sfnt_off0000e4ce.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE4CE 12356 bytes
SHA-256: ca395e7cd3234a8626f201df117747ba35c0bacdd777cd94673103f0caafb745

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