Malicious PDF — malware analysis report

Static analysis result for SHA-256 89092f2fb6a249ef…

MALICIOUS

PDF

68.5 KB Created: 2021-03-29 05:42:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: d0db4c91e64f20c50e322f8b05ffa7cd SHA-1: 29b2eb1935e6cce7e8e9b614bbda9db7802e83b0 SHA-256: 89092f2fb6a249ef3f074abd7a449328c3adf9a15a6816e1b1347b00c9018895
156 Risk Score

Malware Insights

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

The PDF contains numerous external links, a common tactic for SEO poisoning or phishing campaigns. The ClamAV detection and ML classifier strongly indicate malicious intent, likely related to phishing or malware distribution. While no scripts were explicitly extracted, the PDF structure and embedded URIs suggest it's designed to redirect users to potentially harmful websites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9994

Heuristics 5

  • 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.
  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://soxebez.ru/wix?keyword=el+condor+de+los+andes+desperto+lyrics
    • http://jarokixepoweso.mypressonline.com/83441803556.pdf
    • https://cdn.sqhk.co/badiwugaleko/jgi7geD/mepezewodewox.pdf
    • http://juguzixuvuw.iblogger.org/authority_matrix.pdf
    • http://janafan.scienceontheweb.net/maytag_centennial_dryer_medc300bw0_not_heating.pdf
    • https://kaperimivegorew.weebly.com/uploads/1/3/4/3/134371305/bakokitu.pdf
    • https://wodokapiv.weebly.com/uploads/1/3/4/5/134584818/ba06084bb8ba18.pdf
    • https://cdn.sqhk.co/rizonozugaj/aCIvXgc/zara_larsson_wow_remix_lyrics.pdf
    • https://cdn.sqhk.co/torixugajo/ifFjejd/xeroxotowekazabalaxujomu.pdf
    • https://cdn.sqhk.co/tefazaturar/jgjjgmI/simple_listening_exercises.pdf
    • https://fuzifilagowiw.weebly.com/uploads/1/3/4/6/134698760/1438064.pdf
    • https://cdn.sqhk.co/gefimiwotux/0hfLigl/baleterutonibobunukofuzam.pdf
    • https://cdn.sqhk.co/nevowokazem/aiebiad/aprendizaje_cooperativo_johnson_1999.pdf
    • https://wabezapodila.weebly.com/uploads/1/3/1/4/131437306/1434986.pdf
    • https://cdn.sqhk.co/ligilitojob/j76jhuz/balenciaga_triple_s.pdf
    • http://radimamusaxebuw.iblogger.org/73385085721.pdf
    • http://dibowofu.22web.org/44335227441.pdf
    • https://kerutefabiwemek.weebly.com/uploads/1/3/0/8/130874269/b86ba518bd.pdf
    • https://pigulanofalo.weebly.com/uploads/1/3/1/4/131406379/9955799.pdf
    • https://bikigevoxepasi.weebly.com/uploads/1/3/4/7/134716722/942306.pdf
    • https://lisudite.weebly.com/uploads/1/3/2/6/132682892/jenotevetubafu.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://zorijefugixor.atwebpages.com/boruwuletuvevojotefa.pdf
    • http://gidazajizi.rf.gd/dragon_age_inquisition_blackwall_romance_guide.pdf
    • http://zuzopejorexa.onlinewebshop.net/femeri.pdf
    • http://bitixojofesozi.rf.gd/98771378973.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ccd2.bin
622b3a125dbff3a4ea4174ad34abde0dc1960a8e53e837ec83a2e3f41d9daedb		 pdf-font-stream PDF embedded font (sfnt) at offset 0xCCD2 5128 bytes
font_01_sfnt_off0000de5c.bin
8546fda904ff938937de30edde33313cf0ab12eda045e54f73063ebab44afc54		 pdf-font-stream PDF embedded font (sfnt) at offset 0xDE5C 11300 bytes

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