Malicious PDF — malware analysis report

Static analysis result for SHA-256 624507e6d0e27d53…

MALICIOUS

PDF

43.7 KB Created: 2020-10-27 18:29:57 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-31
MD5: 621e51af70ac17045a5acb681ae8e241 SHA-1: 149ef6ec14b747b3ee768b0042bbbd749de2d473 SHA-256: 624507e6d0e27d532b36d64b913754f0ce4b456f15cb04c53e5aeed26112df76
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a link to 'ttraff.club' which is flagged as malicious redirector infrastructure. The document body, though heavily obfuscated, contains the same URL and a seemingly unrelated PDF link, suggesting a link farm or SEO poisoning tactic. The presence of numerous Shopify links, some confirmed benign and others unknown, further supports the idea of a link farm designed to obscure the malicious destination.

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/123?keyword=tiffany+lamp+shade+repair In PDF document text
    • https://jubunukaf.weebly.com/uploads/1/3/1/4/131483214/lapubepirutivak-tovavesuvusu.pdfIn PDF document text
    • https://netaluzubik.weebly.com/uploads/1/3/0/8/130813777/3848154.pdfIn PDF document text
    • https://babinekisifuve.weebly.com/uploads/1/3/2/6/132696104/foxavusi.pdfIn PDF document text
    • https://fimuvuxufubewi.weebly.com/uploads/1/3/4/4/134442536/nejageji.pdfIn PDF document text
    • https://xalipifizipig.weebly.com/uploads/1/3/1/3/131379045/15e006e8c48f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4375087/normal_5f89fe3a50671.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4415304/normal_5f962bdfdbfc7.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5474/3200/files/factoring_polynomials_khan_academy_practice.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0483/7497/2567/files/phi_beta_sigma_founders_day_2020_pictures.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/6547/3189/files/6460391362.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0492/4234/1542/files/73467181615.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2903/6199/files/sulolabetariduji.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0501/0204/2789/files/lerojonot.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7834/4097/files/jewuwovobofedumem.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0492/2844/7900/files/lebagugixepuripa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0482/0880/6045/files/child_development_laura_berk_9th_edition.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/eb3add34-0831-4734-a347-03521f97a9d6/28964133595.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/35662eeb-5d09-4fff-abf4-2ddbdd1907af/2773674888.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/56b1247f-7f8c-43da-a6f0-1d020b2ba13a/rulujizi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e769a062-3614-4f4f-b952-fd18698d8efb/68088964995.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b83b2edb-ac3f-4d16-b8b8-c59188746f88/56498800655.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3c600021-dfc6-41ba-a51a-9c006ac30639/naruto_ultimate_ninja_heroes_1_ppsspp.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3274fcab-6764-40b0-bc93-1d00105a20d8/granny_hack_invisible_mod_apk.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/38293e4c-e434-4a3d-979d-07467575427a/sosivolumodixotisetasugo.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_off00006a4f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6A4F 5332 bytes
SHA-256: 0a2bef67af7ffb61c6cf623a672e86ef4c2c6f5d01a10552a9179a2370333680
font_01_sfnt_off00007c48.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7C48 10908 bytes
SHA-256: 90e4f464967ba9fa0a544c6251be710c9a80eb266f94c24b59bbdcc05a725e18

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