Malicious PDF — malware analysis report

Static analysis result for SHA-256 048e7716b219401a…

MALICIOUS

PDF

71.0 KB Created: 2021-03-09 15:02:01 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-15
MD5: 9a7e4aef3b07c7b8219babb698383421 SHA-1: 0c754dae1eebf9669493742d4dc63fcba69e70e5 SHA-256: 048e7716b219401a5d183b7325ba8ba6f8cb5fbb0add08f6fc511af2aaf92529
156 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains a large number of external links, identified by the PDF_SEO_LINK_FARM heuristic, suggesting a link farm or phishing campaign. The ML classifier and ClamAV detection strongly indicate malicious intent. The embedded URL `https://pelibifir.ru/strik?utm_term=is+a+street+cat+named+bob+on+amazon+prime` is a primary indicator of compromise, likely leading to a malicious site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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.
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://pelibifir.ru/strik?utm_term=is+a+street+cat+named+bob+on+amazon+prime PDF link annotation
    • http://wasegulom.mygamesonline.org/4973804101.pdfIn PDF document text
    • http://persequenteamsohbet.com/68743715433yvont.pdfIn PDF document text
    • https://cdn.sqhk.co/porosobof/iihwhjI/lighthouse_church_of_god_ketchikan.pdfIn PDF document text
    • https://cdn.sqhk.co/bilanogakiw/4jefgj6/96943371467.pdfIn PDF document text
    • http://fafijitesulexiz.mygamesonline.org/59278721845.pdfIn PDF document text
    • http://proba7.xyz/97842325022p2d1n.pdfIn PDF document text
    • https://belijexulifowa.weebly.com/uploads/1/3/0/7/130738738/nitalepulum.pdfIn PDF document text
    • http://mnogolidov.xyz/ml_layla_build_guide7oxfl.pdfIn PDF document text
    • https://xeligedijeka.weebly.com/uploads/1/3/1/0/131070237/muwex_ruganokozikowa_sewebixeki_dewuz.pdfIn PDF document text
    • http://bodyita.space/books_on_technical_analysis_of_indian_stock_marketdmhyq.pdfIn PDF document text
    • http://gatorama.fun/26537132851j4qbt.pdfIn PDF document text
    • http://gejesixave.scienceontheweb.net/bazakodajesalojixiside.pdfIn PDF document text
    • https://wemibevufiwoseb.weebly.com/uploads/1/3/0/8/130813314/4428175.pdfIn PDF document text
    • https://cdn.sqhk.co/sefibenip/fX5gfOF/shooting_archery_downhill.pdfIn PDF document text
    • https://tidijerovapo.weebly.com/uploads/1/3/4/3/134342207/7868317.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/mogipegi/superficial_love_piano_sheet_music_free.pdfIn PDF document text
    • https://s3.amazonaws.com/gumagabu/zaxojilixus.pdfIn PDF document text
    • https://s3.amazonaws.com/woneketelak/que_es_un_reporte_anecdotico.pdfIn PDF document text
    • https://s3.amazonaws.com/retobifulipo/natesiwitan.pdfIn PDF document text
    • https://s3.amazonaws.com/lijulijowivaze/world_history_textbook_answers_10th_grade.pdfIn PDF document text
    • https://s3.amazonaws.com/viboxikuz/the_beatles_let_it_be_sheet_music.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_off0000d761.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD761 5312 bytes
SHA-256: 1baf39a185c1b10031e8c24a5f88449c3b46689a78ca1e43ba93ba66d7866087
font_01_sfnt_off0000e959.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE959 10852 bytes
SHA-256: 856801d2b554ca4c413dd40a0597485e4a12c9baf3983ea3474ad631dad21c83

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