Malicious PDF — malware analysis report

Static analysis result for SHA-256 afe717e5213844df…

MALICIOUS

PDF

208.9 KB Created: 2021-04-01 02:51:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-08-20
MD5: a8d471be03db4856adcebecdd63500bc SHA-1: cf76098e0b18715f1953f61670f0227806da6140 SHA-256: afe717e5213844df62e44858245a3babccb4c78078a77188b6bf70f6c6290f25
136 Risk Score

Malware Insights

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

This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a phishing attempt. The document uses an image lure to redirect users to a URL that appears to be offering a download, likely a malicious payload. The embedded URLs suggest a phishing campaign aiming to trick users into downloading further malware.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9795

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
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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://xezojetit.ru/award?keyword=early+marriage+in+islam+pdf PDF link annotation
    • http://meetsucre.pro/92292345897hf41m.pdfIn PDF document text
    • http://meetsalle.xyz/dell_precision_m4800_battery_not_charging3igd1.pdfIn PDF document text
    • https://kususeni.weebly.com/uploads/1/3/2/7/132740764/245348c2d.pdfIn PDF document text
    • https://bixilojod.weebly.com/uploads/1/3/0/8/130813790/6119860.pdfIn PDF document text
    • https://moredotaze.weebly.com/uploads/1/3/0/7/130776260/8c937f633169a4a.pdfIn PDF document text
    • https://risegexof.weebly.com/uploads/1/3/4/6/134661868/fowoduxizekoro.pdfIn PDF document text
    • https://fukukajapojuj.weebly.com/uploads/1/3/2/8/132815924/7972999.pdfIn PDF document text
    • https://cdn.sqhk.co/nejajevafode/hhjidoD/dusupeto.pdfIn PDF document text
    • https://dolunejasuvufa.weebly.com/uploads/1/3/0/7/130776008/1694e4c4.pdfIn PDF document text
    • https://cdn.sqhk.co/lojulifuvuxu/i1FD5jf/tegagaxibu.pdfIn PDF document text
    • https://dabikosetizoje.weebly.com/uploads/1/3/4/2/134234987/1639194.pdfIn PDF document text
    • http://copyright-services-us.com/8515557138965qbf.pdfIn PDF document text
    • https://cdn.sqhk.co/sepovili/igifjaU/pop_rocks_cat_litter_meme.pdfIn PDF document text
    • https://wilumixomili.weebly.com/uploads/1/3/1/4/131483065/fumezi.pdfIn PDF document text
    • https://cdn.sqhk.co/bomemenun/bZigtih/minecraft_dungeons_ps4_game.pdfIn PDF document text
    • https://zamosokajuzosa.weebly.com/uploads/1/3/4/6/134651904/2879632.pdfIn PDF document text
    • https://vagoledos.weebly.com/uploads/1/3/5/3/135320004/jowazimetezosi_vigekugabaj.pdfIn PDF document text
    • http://esclub.info/what_inferential_statistics_to_usexbv7y.pdfIn PDF document text
    • https://mowofagafuvu.weebly.com/uploads/1/3/4/5/134594922/jowivivuj.pdfIn PDF document text
    • https://cdn.sqhk.co/xenivoronizu/jgh6ifk/31116201086.pdfIn PDF document text
    • https://wosabepowidax.weebly.com/uploads/1/3/0/8/130814575/wubosenupuvu_kudokutuba_girepadem_dosorirokuxizu.pdfIn PDF document text
    • https://kewalagaxed.weebly.com/uploads/1/3/4/8/134864879/zulasuke_komebamogu_raforaratene_vopun.pdfIn PDF document text
    • https://bogekivusuwi.weebly.com/uploads/1/3/4/6/134604255/xumefinawapow_zunuf.pdfIn PDF document text
    • https://tefegepivovopuf.weebly.com/uploads/1/3/5/3/135311357/46cfad6e.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0002cbbc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2CBBC 5420 bytes
SHA-256: 8ad320be1106a7ef79504dfd01f05a8559559e87cd0deb7de93a8694d0a8e68c
font_01_sfnt_off0002de25.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2DE25 20660 bytes
SHA-256: 8dfbb8d422af969b76816a6cf58fc70897b9bffc08c560438ba34df105e85b4f
font_02_sfnt_off000317e6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x317E6 18628 bytes
SHA-256: 5df6a604d055be86eba1b124312ab372d427bd95241d9754ad0b7ea5a2600406