Malicious PDF — malware analysis report

Static analysis result for SHA-256 0abe308ea217d055…

MALICIOUS

PDF

80.8 KB Created: 2021-03-23 06:23:45 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-13
MD5: bcae8fca713d5ef4831572b52304ca35 SHA-1: 422e68bad042816488351a739e245e6aa8556149 SHA-256: 0abe308ea217d0554189d61bcda59857baea29a80205ccc7fbbc5f378f7f0d96
192 Risk Score

Malware Insights

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

This PDF file was identified as malicious by multiple heuristics, including a critical alert for linking to known malicious redirector infrastructure. The presence of a 'download button' lure and the obfuscated document body suggest an attempt to trick the user into navigating to a harmful URL. The file's structure and embedded links point towards a phishing or malware distribution scheme.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9992

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://dafemum.ru/strik?utm_term=american+history+x+movie+download+in+tamil In PDF document text
    • http://nosatines.mypressonline.com/educacion_en_el_feudalismo.pdfIn PDF document text
    • https://voxepobar.weebly.com/uploads/1/3/4/6/134668427/wagitet-rugekobedoze.pdfIn PDF document text
    • http://bestgirl69.com/lowirolufopebatinowobisovr1euo.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4390323/normal_6025f6701971e.pdfIn PDF document text
    • http://tophomework.space/shellshock_live_2_unblocked_google_sitesa3kcx.pdfIn PDF document text
    • https://waruzakelejabu.weebly.com/uploads/1/3/4/6/134600446/6fe25d0.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4392877/normal_5fc7121eb8c31.pdfIn PDF document text
    • https://gurugurib.weebly.com/uploads/1/3/1/3/131384113/7618343.pdfIn PDF document text
    • https://rajevolid.weebly.com/uploads/1/3/0/8/130813967/143e0c166b78dc.pdfIn PDF document text
    • http://azalea.store/nazojukedelafuvazorvk.pdfIn PDF document text
    • https://rixafewokeget.weebly.com/uploads/1/3/0/7/130739987/nulexexof-dekuzewovuxef-subofonala.pdfIn PDF document text
    • http://xanejog.medianewsonline.com/bomoxazig.pdfIn PDF document text
    • http://tertov.xyz/malukideparuruzone8lk6m.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4470703/normal_603d7c535f47f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4380525/normal_60205a82ad127.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4445101/normal_60073703de6ca.pdfIn PDF document text
    • http://wiinorama.fun/wings_of_fire_movie_trailerju7x0.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://viwuwijagabote.myartsonline.com/a_raisin_in_the_sun_quotes_about_poverty.pdfIn PDF document text
    • https://s3.amazonaws.com/jejulurowev/xanomokuboso.pdfIn PDF document text
    • http://pigutun.myartsonline.com/xixodanosatilur.pdfIn PDF document text
    • http://pakapenabu.atwebpages.com/koyo_bearing_catalogue.pdfIn PDF document text
    • https://s3.amazonaws.com/boxalewijim/66729000915.pdfIn PDF document text
    • http://seroritubofa.atwebpages.com/79852933390.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_off0000f015.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF015 5280 bytes
SHA-256: 39c496bee77bd4a387d1b86a3c36ed18e2e9e0e219b84eb13b55725abaec8aa9
font_01_sfnt_off000101de.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x101DE 11164 bytes
SHA-256: abe9ff2997a7b462e94f4ccbd154512d4d9d6a9cd3e6d890204b80051f3bbec4
font_02_sfnt_off00012725.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12725 4324 bytes
SHA-256: ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3