Malicious PDF — malware analysis report

Static analysis result for SHA-256 ad82e4da97c24237…

MALICIOUS

PDF

49.1 KB Created: 2020-10-12 01:31:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 1429dd091fe78d70e70a2ea327231637 SHA-1: 3d58b647f5c06c771b09d69f357f0d97f31ce818 SHA-256: ad82e4da97c24237d8fc38410d8869a230921507714a10817acf9d46ba786b8c
194 Risk Score

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.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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://ggtraff.ru/strik?keyword=bad+boy%2527s+girl+blair+holden+wattpad In PDF document text
    • http://bogiv.beyondthefinish.org/uploads/1/3/0/7/130776099/zebevafati_sivapowi_kejabel.pdfIn PDF document text
    • http://files.yogawithbobby.com/uploads/1/3/1/6/131637131/tawome.pdfIn PDF document text
    • https://site-1039391.mozfiles.com/files/1039391/83136292298.pdfIn PDF document text
    • https://site-1036772.mozfiles.com/files/1036772/82950730051.pdfIn PDF document text
    • https://site-1040615.mozfiles.com/files/1040615/54645494698.pdfIn PDF document text
    • https://site-1038535.mozfiles.com/files/1038535/zisavesigefib.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://uploads.strikinglycdn.com/files/3faa8a0c-ad54-4d1f-96b4-e0095c1e9ade/senodotimeloko.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b33e3426-c7ec-493e-ba18-dab31de8c827/fizaximevorupazesuwedok.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d173b87b-3fbc-45a0-9bba-5d5c1066234b/12515810091.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bc3c2dc0-115b-4220-9091-50107f0e4ed8/62986863891.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4389/8019/files/enchiladas_de_mole_dona_maria.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0479/8034/7548/files/ffxiv_to_have_loved_and_lost_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4957/3784/files/aa_step_study_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0480/2016/0671/files/pov_inspection_worksheet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0486/5533/5582/files/find_the_s_in_wailing_woods_season_7.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_off00007365.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7365 5428 bytes
SHA-256: cbfbf561d577f97aa5e81606556a7a747089d3df12acdc0f936546ae446dc907
font_01_sfnt_off000085dd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x85DD 10224 bytes
SHA-256: 35f0373ef153296f7f90eb3f8187052a22dfe30ff1933d51f2a2c7a13c77602d
font_02_sfnt_off0000a8e4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA8E4 4324 bytes
SHA-256: b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c

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