Malicious PDF — malware analysis report

Static analysis result for SHA-256 f0977eb0825730d3…

MALICIOUS

PDF

39.5 KB Created: 2020-10-29 08:32:56 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 1093498d2128325e09f103ace9085c35 SHA-1: ddad2b358ef563d3b6e5ae40a4cbed485ca4deb9 SHA-256: f0977eb0825730d39f4fafddc956b4d138f55ea8c425be06b2de8b3fd71c3e40
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://ttraff.cc/123?keyword=sterling+shepard+rotoworld In PDF document text
    • https://cdn-cms.f-static.net/uploads/4413240/normal_5f973aa0d4015.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4372360/normal_5f8b18f1e4add.pdfIn PDF document text
    • https://dejuxowiku.weebly.com/uploads/1/3/0/7/130738850/2816927.pdfIn PDF document text
    • https://liwobolavus.weebly.com/uploads/1/3/4/1/134131542/4735831.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4378160/normal_5f8d27da6b4a1.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4387817/normal_5f9a4d7a2cd50.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366014/normal_5f872adabfd42.pdfIn PDF document text
    • https://babikovinemixe.weebly.com/uploads/1/3/1/8/131856339/131f6.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://cdn.shopify.com/s/files/1/0268/8820/8559/files/cnd_shellac_nail_polish_instructions.pdfIn PDF document text
    • https://s3.amazonaws.com/wilugugo/andhra_pradesh_tourist_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0497/3500/8405/files/75437594613.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0496/6416/3999/files/bozodezolizedewelezip.pdfIn PDF document text
    • https://s3.amazonaws.com/susopuzupure/bavapub.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5262/0193/files/wowosunijefukakuf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0468/8606/0189/files/maltese_chihuahua_mix_puppies.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0482/9711/5809/files/papa_louie_burgeria_crazy_games.pdfIn PDF document text
    • https://s3.amazonaws.com/kakekojezutok/area_of_circle_and_circumference.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0268/8434/1936/files/89524188401.pdfIn PDF document text
    • https://s3.amazonaws.com/kiwopusafize/42701205932.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/5538/0630/files/leather_card_holder_pattern_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0496/4797/6611/files/lee_min_ho_and_suzy_miss_a.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0497/3441/8586/files/salem_witch_trials_video_worksheet_answers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7785/1553/files/the_endocrine_system_quiz_worksheet_answers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0502/7836/7415/files/fruity_loops_studio_mobile_android_apk.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_off00005118.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5118 5204 bytes
SHA-256: a2c302f61c4000f0a8fe0ec99198d1fe611ecaeaf9a50fe51fa66e6336b7fc9d
font_01_sfnt_off000062c7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x62C7 9096 bytes
SHA-256: 370b4d5de371e7e70739fbf61c2b21835bb57cf67ab9975b29c3d131b04a936f
font_02_sfnt_off000081d4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x81D4 4324 bytes
SHA-256: 1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361

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