Malicious PDF — malware analysis report

Static analysis result for SHA-256 107cd152584410d6…

MALICIOUS

PDF

68.2 KB Created: 2021-02-22 02:46:10 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-07
MD5: a0d702b5c3b58570476d31c1da182cfa SHA-1: 1fd193ef75ef004de3a9822d0803f36afaa78f87 SHA-256: 107cd152584410d6fbf06612e75a1e68f7c73d4ab9e3893409196dd930dd59a8
96 Risk Score

Malware Insights

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

The PDF document contains numerous external links, with one specifically pointing to a 'drag racing mod apk' download, suggesting a lure for users to download potentially malicious software. The PDF_SEO_LINK_FARM heuristic indicates a mass of external links, likely for SEO manipulation or to distribute malware. While no scripts were directly extracted, the PDF structure and extensive link farm suggest it's designed to redirect users to malicious sites, potentially for malware distribution or phishing.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 4

  • 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://jacksth.ru/wix?keyword=drag+racing+mod+apk PDF link annotation
    • https://mosejibufo.weebly.com/uploads/1/3/4/4/134437632/xumedasib.pdfIn PDF document text
    • https://cdn.sqhk.co/muluxodipoto/gjdgeha/netflix_christmas_movies_2020.pdfIn PDF document text
    • https://zidovularirijap.weebly.com/uploads/1/3/4/7/134718784/jobefifet_nupom_velamamalexad_jebamalo.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4451033/normal_600993980abe5.pdfIn PDF document text
    • https://bemujegifa.weebly.com/uploads/1/3/5/3/135312506/4896464.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4415964/normal_60051a3628508.pdfIn PDF document text
    • https://sazefowefojewen.weebly.com/uploads/1/3/4/8/134893887/5694497.pdfIn PDF document text
    • https://cdn.sqhk.co/dukosisevu/gF8Yjhj/survival_prison_escape_mod_apk_android_1.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4454967/normal_6008e9900fc15.pdfIn PDF document text
    • https://cdn.sqhk.co/sufadoma/MhjbOif/91471567640.pdfIn PDF document text
    • https://cdn.sqhk.co/nuvurero/jdE3jbD/poweramp_full_version_unlocker_cracked.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4492250/normal_600f4b607c589.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4417129/normal_5fe9e61e2290b.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4478438/normal_5ff5de7c90d0c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4412996/normal_5fe64f5cf3959.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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_off0000cd6b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCD6B 5248 bytes
SHA-256: 532753df2f18969033e3ea8feca7bc3bcffcb8ea88104563ce9b39efc6e8d419
font_01_sfnt_off0000df39.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDF39 10808 bytes
SHA-256: 067ba1028346e628e2ef3db96fb27acef799ffb268318d0deaf2c40f098c53f9

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