Malicious PDF — malware analysis report

Static analysis result for SHA-256 e47bb36e2c92abeb…

MALICIOUS

PDF

73.5 KB Created: 2021-02-05 04:53:18 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-07
MD5: be6c276c2d1beca279a8a9f4f626a71e SHA-1: c6c5412c4806a5167a0ac6dd8beebb04ec5042c6 SHA-256: e47bb36e2c92abebe79f74fa2e7bc1f0ef997a4671954676cff909fbbd4c678a
126 Risk Score

Malware Insights

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

The PDF contains numerous embedded URLs, many pointing to disposable domains, indicating a link farm or phishing lure. The ML classifier and ClamAV detection strongly suggest malicious intent, likely for phishing or malware distribution. While no scripts were explicitly extracted, the PDF structure and embedded URIs are indicative of malicious activity.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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.
  • 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/aws?utm_term=aaja+ni+aaja+punjabi+song++pagalworld PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4389571/normal_601a71b084b2a.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4480142/normal_5ff259b642117.pdfIn PDF document text
    • http://nefuzixitelu.iblogger.org/tetiserapo.pdfIn PDF document text
    • https://xujopikaxatanow.weebly.com/uploads/1/3/4/8/134850499/luxin-suvutakujeri-jerezutakekulob-kolebinadi.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4494888/normal_5fecfc820dcc3.pdfIn PDF document text
    • http://gnatural.space/kismet_train_collision_reportkijl2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4421959/normal_5fe90963e6d62.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4469350/normal_5fefd0a434b9e.pdfIn PDF document text
    • https://zegepefuloruwan.weebly.com/uploads/1/3/4/0/134012378/gevuguboved.pdfIn PDF document text
    • https://poxixarusel.weebly.com/uploads/1/3/4/1/134131789/wamufegelow.pdfIn PDF document text
    • http://gogotmif.space/dirt_bike_ramp_for_sale_near_me1eq69.pdfIn PDF document text
    • https://xifabaruwene.weebly.com/uploads/1/3/0/9/130969291/d2cd5290b40.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
    • http://ravawubiralimiw.rf.gd/felt_baby_shoe_pattern_template.pdfIn PDF document text
    • http://pujusojup.epizy.com/20153057185.pdfIn PDF document text
    • http://vupafigimewex.rf.gd/58916611919.pdfIn PDF document text
    • http://pupitudaxomibi.epizy.com/79437776824.pdfIn PDF document text
    • http://dakokaxawizepu.epizy.com/apk_ram_booster_speed_pro.pdfIn PDF document text
    • http://likijanima.epizy.com/45167727575.pdfIn PDF document text
    • http://tarunom.rf.gd/kartonyono_medot_janji_versi_reggae_ska.pdfIn PDF document text
    • http://doxekapop.rf.gd/babelufowaseditibukusu.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_off0000d5c3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD5C3 5108 bytes
SHA-256: f3dcf699b73de0f84b51258b665ee2a2c0021d548121c5f8ab1c1095abf718e4
font_01_sfnt_off0000e720.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE720 10372 bytes
SHA-256: 6a176bc7873433246b122e32c77d73d6b3a9ef41a270c8995bd0e93387718cef
font_02_sfnt_off00010a77.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10A77 4324 bytes
SHA-256: 4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3