Malicious PDF — malware analysis report

Static analysis result for SHA-256 db48f49eb59611c8…

MALICIOUS

PDF

37.2 KB Created: 2020-10-30 02:56:12 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-01-23
MD5: c568e55eb9bbdbad5c66ee0005d63ea5 SHA-1: 2bcb2bbf539eea49d938030a02bd1235390b8d73 SHA-256: db48f49eb59611c892d46fdba229ca3e6baedb14c5a83963bda68b339b2eb14c
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://ttraff.cc/pify?keyword=human+anatomy+laboratory+manual+with+cat+dissections+answer+key In PDF document text
    • https://xukanimuwuvam.weebly.com/uploads/1/3/2/6/132696198/2327983.pdfIn PDF document text
    • https://kuzewejutoba.weebly.com/uploads/1/3/4/3/134398832/af0571af17.pdfIn PDF document text
    • https://dutitujazekap.weebly.com/uploads/1/3/0/8/130814390/9276785.pdfIn PDF document text
    • https://xigokerurubupa.weebly.com/uploads/1/3/4/3/134312623/100e18671efc8e0.pdfIn PDF document text
    • https://jeponiruwapin.weebly.com/uploads/1/3/0/7/130776483/vuxuwanu-giwosofib-begemekofegesu.pdfIn PDF document text
    • https://jakemujilofadam.weebly.com/uploads/1/3/1/3/131380171/kunavox.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://s3.amazonaws.com/fezenur/case_files_anatomy_download.pdfIn PDF document text
    • https://s3.amazonaws.com/mesotodimus/spinal_cord_injury_book.pdfIn PDF document text
    • https://s3.amazonaws.com/bededuxotulapil/dekenesetatid.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0506/4828/5382/files/lowawunidanisulaj.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bdfc03fb-756f-4de8-9fc4-926ce0cbb028/cheats_for_gta_5_xbox_one_unlimited.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4c9d5ca9-c997-4dee-9177-32cd5933f1c8/44909916403.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8253/8403/files/bipitijurubifixefugojokuj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0497/8216/1570/files/aladdin_2019_online_netflix.pdfIn PDF document text
    • https://s3.amazonaws.com/sefukirexuwekij/big_bang_theory_summary.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0501/7052/7909/files/42781711423.pdfIn PDF document text
    • https://s3.amazonaws.com/vuraradaso/company_letterhead_format.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_off00004646.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4646 5420 bytes
SHA-256: 121ed6f76800cb1db4e0e481d783d60871ea69d833b6f839f8f86596f8ea8003
font_01_sfnt_off00005886.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5886 9504 bytes
SHA-256: 3ce4f3daadc00268764bad0bf3544639cbf8c34a247903fcbe188bf862a3a863
font_02_sfnt_off00007904.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7904 4324 bytes
SHA-256: a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f

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