Malicious PDF — malware analysis report

Static analysis result for SHA-256 f515328b47b042d4…

MALICIOUS

PDF

70.5 KB Created: 2021-03-11 13:42:54 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-07
MD5: 685e6f9360db229c6544d65226f6746f SHA-1: 055e73a3fad37a8153cdce1dfe5bd987f3661f57 SHA-256: f515328b47b042d45a646edcf8740e6d3dff1e94d9b6893fe7671783d5376730
156 Risk Score

Malware Insights

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

The PDF contains numerous external links, identified as a link farm, suggesting an attempt to direct users to malicious websites. The ClamAV detection and ML classifier strongly indicate malicious intent, likely phishing or malware distribution. Although no scripts were explicitly extracted, the PDF structure and embedded URIs point towards a malicious lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://bologen.ru/123?utm_term=bhaagamathie+telugu+full+movie++tamilrockers PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4410965/normal_6043b19b2a960.pdfIn PDF document text
    • http://nuloriwilorij.scienceontheweb.net/english_grammar_in_use_elementary_fifth_edition.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370785/normal_601046d429903.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4383327/normal_5fece7f93f93f.pdfIn PDF document text
    • https://lerelapukuvi.weebly.com/uploads/1/3/0/7/130740054/4330058.pdfIn PDF document text
    • https://jadojojipolukot.weebly.com/uploads/1/3/5/3/135337887/baxanulutobo_tawedixuvu_ritisejum.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4453743/normal_60041f1cadacd.pdfIn PDF document text
    • http://ruguwafe.scienceontheweb.net/reviews_of_keurig_mini_plus_brewer.pdfIn PDF document text
    • https://cdn.sqhk.co/jasojime/eheZR3C/mumilekuz.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4368244/normal_5ff29c0a9041a.pdfIn PDF document text
    • https://tidukefawa.weebly.com/uploads/1/3/4/8/134851120/7ea96bdd60d8.pdfIn PDF document text
    • http://posadukik.getenjoyment.net/five_nights_at_freddys_2_free_download_mac.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4387925/normal_6049a2253b30b.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4405195/normal_5ff94d4e3a934.pdfIn PDF document text
    • https://jisixeda.weebly.com/uploads/1/3/1/4/131409884/tonuwulalonunonu.pdfIn PDF document text
    • http://jarevine.mywebcommunity.org/jikamigironekawisezizunem.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4384307/normal_6002120800b5d.pdfIn PDF document text
    • https://telabafulux.weebly.com/uploads/1/3/0/9/130969700/metonom.pdfIn PDF document text
    • https://cdn.sqhk.co/dodagirojep/jdsgfg2/my_sprint_app_is_under_maintenance.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://ad843f61-c544-48d7-8cfb-3c048b9edb46.filesusr.com/ugd/0dd9ed_2620b4d12f1b4d8893b2ac9abed9a74e.pdf?index=trueIn PDF document text
    • https://9a4b5e96-23fe-4021-9525-787506808755.filesusr.com/ugd/b3318b_360e597c6bca41edb72374b864066375.pdf?index=trueIn PDF document text
    • https://ba30dffa-51fe-4caa-9472-6f142403a9bb.filesusr.com/ugd/c2007e_3487726b09ee44d6abc75a2de11636dd.pdf?index=trueIn 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_off0000d5c8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD5C8 5468 bytes
SHA-256: 886e230ead65b51af7e9723407c3ff7528f89b2c9a020df092a1af27a92f410c
font_01_sfnt_off0000e84a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE84A 10560 bytes
SHA-256: b77c311e07ec16a764fb42557ef28ad099897a45ce854248484b98b1a7f65088

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