Malicious PDF — malware analysis report

Static analysis result for SHA-256 792ccb1e941fd0c0…

MALICIOUS

PDF

72.5 KB Created: 2021-03-24 03:31:25 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-08-20
MD5: e6ab2cabcac50dd976901abfaa9eab1d SHA-1: c7fc54538cd9804d09ee61182d7a08eb7301bc20 SHA-256: 792ccb1e941fd0c09565449cada6f32877a750af14cfcef10f8d61f22453cabd
126 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF file was flagged as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains numerous embedded URLs, with the primary one being 'https://baarspo.ru/wix?keyword=strike+force+heroes+3+unblocked+6969', suggesting a phishing or redirection attempt. The document body, though heavily obfuscated, appears to be a lure related to game content, aiming to trick users into visiting these external sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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 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://baarspo.ru/wix?keyword=strike+force+heroes+3+unblocked+6969 PDF link annotation
    • http://nujilotadotila.iblogger.org/xipixirodokeg.pdfIn PDF document text
    • https://nitevafatuva.weebly.com/uploads/1/3/4/8/134872456/narifuf-vovagurumit-wonokajoni.pdfIn PDF document text
    • https://nogurutofuxuj.weebly.com/uploads/1/3/4/5/134525281/6997337.pdfIn PDF document text
    • http://stalekost.site/the_art_of_expressing_the_human_body_drive_safe76hv6.pdfIn PDF document text
    • http://farunoraxukiz.getenjoyment.net/elektrik_arpmas_pediatri.pdfIn PDF document text
    • https://cdn.sqhk.co/fiwujumejuf/h3hhchi/68372022322.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4465012/normal_5fd67e1f797b1.pdfIn PDF document text
    • http://vurovolapoza.mygamesonline.org/how_to_reset_skyscan_atomic_clock_86722.pdfIn PDF document text
    • http://allfreebets.ru/seesaw_bts_performance6tabb.pdfIn PDF document text
    • http://natural-shop.info/bababapezuzusu19tj4.pdfIn PDF document text
    • https://pilidikuvitas.weebly.com/uploads/1/3/4/7/134766888/kalajidazewu.pdfIn PDF document text
    • http://quinzsy-studio.design/donubadaxo23ut2.pdfIn PDF document text
    • https://cdn.sqhk.co/bemaxopig/dMJjctT/mikanamewo.pdfIn PDF document text
    • http://niwopofe.scienceontheweb.net/kejamerapuk.pdfIn PDF document text
    • https://lozofuxoxezutuw.weebly.com/uploads/1/3/5/3/135303337/liganotakeriv.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4401716/normal_602f2fdd266e4.pdfIn PDF document text
    • https://kolijegidixut.weebly.com/uploads/1/3/1/3/131379325/5630163.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.opentle.orgIn PDF document text
    • http://molodetagako.epizy.com/bookkeeping_and_accounting_for_dummies_free.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
    • http://www.gnu.org/licenses/gpl.htmlIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ce41.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCE41 5680 bytes
SHA-256: e6c8a00d30883ac1ef75750d5d031910caeb7ca8dfb042d296c70a2dcffed8ba
font_01_sfnt_off0000e178.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE178 5960 bytes
SHA-256: 84c9f15295723df3fdeb2b2bc711f74cdd97eeab6cc316d315e7d4483a9d0143
font_02_sfnt_off0000f0c3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF0C3 11344 bytes
SHA-256: 88af4c265efa0eb74961cea842adecb8de410f313c1142da55820b8b21a03521

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