Malicious PDF — malware analysis report

Static analysis result for SHA-256 150d4bc3b8c488a4…

MALICIOUS

PDF

41.3 KB Created: 2020-10-28 14:27:26 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-19
MD5: a869e47f142162f100adbffff9553748 SHA-1: 1b533fc7d126b79f8be0eb7135eb92a32fb601de SHA-256: 150d4bc3b8c488a48b005acf46f1253d8d5fdbe804873e3fa1bcae0cea66ad74
184 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.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://cctraff.ru/strik?keyword=maytag+gemini+double+oven+manual+self+cleaning+instructions In PDF document text
    • https://duveniwapawas.weebly.com/uploads/1/3/4/2/134265961/donik.pdfIn PDF document text
    • https://bugalesatu.weebly.com/uploads/1/3/4/3/134309104/xaxotileloketejuz.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366312/normal_5f908bdbc5f55.pdfIn PDF document text
    • https://rokumetusemep.weebly.com/uploads/1/3/4/3/134382705/xomiwexitepa-jodofaw.pdfIn PDF document text
    • https://gijakumode.weebly.com/uploads/1/3/4/3/134306186/5562108.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366331/normal_5f892b00ec2ee.pdfIn PDF document text
    • https://tenasusuboziwid.weebly.com/uploads/1/3/4/3/134349012/dokadinibi.pdfIn PDF document text
    • https://fefupitemoxawa.weebly.com/uploads/1/3/4/4/134480784/lupuwawisi_sezubisolaw_dulagudi_zinaxijubetife.pdfIn PDF document text
    • https://wazajodowefode.weebly.com/uploads/1/3/4/0/134017502/826e2f.pdfIn PDF document text
    • https://fukobararusi.weebly.com/uploads/1/3/4/4/134404541/figilowogakopa.pdfIn PDF document text
    • https://korodaziso.weebly.com/uploads/1/3/0/7/130740443/355464.pdfIn PDF document text
    • https://xogexemufak.weebly.com/uploads/1/3/1/4/131437987/vebufez_pedob.pdfIn PDF document text
    • https://jamafijuzu.weebly.com/uploads/1/3/1/4/131437216/be4ba3fce.pdfIn PDF document text
    • https://dedeluruxizo.weebly.com/uploads/1/3/4/3/134305162/8460759.pdfIn PDF document text
    • https://megeleju.weebly.com/uploads/1/3/4/3/134319984/b71b49ebe9.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4404730/normal_5f99622abdc2d.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/1/0504/2546/2971/files/bee_downloader_app_for_android.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c148418e-0230-434e-a3a6-63c8328836f4/33325529487.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0497/7888/4759/files/fikivepefefagi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0500/5741/2779/files/8930591060.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/156f84b1-a0b6-4183-bffe-a86867a79e4e/puloreniritoguludetomudo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0499/8332/4320/files/ganovekuwukemima.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/97af1049-046c-4953-846d-b9404f0b313b/the_last_airbender_movie_download_in.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3c67fc86-d6f6-40e0-b1b3-4d52e4294cf5/lufiboz.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/972c6efc-5ec0-42b4-8e9f-0b8b86cd8caa/duzetolanunivoxij.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_off0000621c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x621C 5648 bytes
SHA-256: 72fda930ab9fdb79b3fad50ba06c091f3dae1b3043900224342ac347dd89cf28
font_01_sfnt_off0000755d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x755D 9936 bytes
SHA-256: af42028a98a3afb4dbc343a2ddbea9356a94052decb39bb644a6cdaa65fc1267