Malicious PDF — malware analysis report

Static analysis result for SHA-256 14e13b55cc739018…

MALICIOUS

PDF

85.6 KB Created: 2021-03-16 20:40:28 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 2c0bd4c773b6ebce8fc2c04121737aba SHA-1: bba3028f6b513743c277c87fe4b89595269eedeb SHA-256: 14e13b55cc739018b289463bb1792aeb0cceb5701f697068d13de3f35fabd0ac
96 Risk Score

Malware Insights

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

The file is a PDF document that contains an embedded URI pointing to a malicious domain, identified by ClamAV as Pdf.Phishing.Trojan. The document body, though heavily obfuscated, suggests a product review lure. The presence of external URIs and the ML classifier's high confidence indicate a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

Heuristics 4

  • 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://nipisod.ru/wix?keyword=noco+genius+boost+gb30+review
    • https://static.s123-cdn-static.com/uploads/4413125/normal_5fc7ede5e834e.pdf
    • https://static.s123-cdn-static.com/uploads/4446275/normal_5fcf24c71855d.pdf
    • https://static.s123-cdn-static.com/uploads/4373526/normal_5fef998cb0156.pdf
    • http://ziwewixowele.sportsontheweb.net/ceragon_ip20_manual.pdf
    • https://static.s123-cdn-static.com/uploads/4462980/normal_5fff3ea6428ad.pdf
    • https://cdn-cms.f-static.net/uploads/4367310/normal_60280cf2e49ee.pdf
    • http://tonukavugu.mygamesonline.org/47178260256.pdf
    • https://static.s123-cdn-static.com/uploads/4496816/normal_5ff1ba555c23d.pdf
    • http://bajifepeselok.sportsontheweb.net/wubori.pdf
    • https://cdn-cms.f-static.net/uploads/4444100/normal_6026f99151b71.pdf
    • https://cdn-cms.f-static.net/uploads/4417824/normal_5fda96270596f.pdf
    • https://cdn-cms.f-static.net/uploads/4418993/normal_601ceebb5ad2c.pdf
    • https://cdn-cms.f-static.net/uploads/4485821/normal_5fe8765fe4cc4.pdf
    • https://static.s123-cdn-static.com/uploads/4421464/normal_5fdf3889aa218.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/jazamerijekufol/nfl_preseason_2019.pdf
    • https://uploads.strikinglycdn.com/files/cd27d120-775c-4733-8098-67fb349b2f97/puzepasumosat.pdf
    • https://s3.amazonaws.com/wumodukubaru/vaduxezigiwujosol.pdf
    • https://s3.amazonaws.com/nufidibodudulad/how_do_you_set_the_time_on_a_techno_pave_touch_screen_watch.pdf
    • https://s3.amazonaws.com/fomudebipefasu/sauti_sol_song_still_the_one.pdf
    • https://s3.amazonaws.com/susonanezaj/bluestacks_32_bit_free_for_pc.pdf
    • https://uploads.strikinglycdn.com/files/4d8a3755-2c4a-4206-b081-929003a1f9a6/how_to_install_paper_in_canon_p170-dh.pdf
    • https://uploads.strikinglycdn.com/files/37defa4d-280a-43f9-a24b-63b2b6c0cbe6/kimutabe.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
    • http://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f961.bin
bc407c401f400681a7d4e5f170c2441b2d5e35d831bec66d9aac9cff8e6c30ee		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF961 5292 bytes
font_01_sfnt_off00010b96.bin
41246eb4a03d07b8cf1561ef5aa651e7a352fdda8dad045567a2ec91254c9acc		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10B96 11592 bytes
font_02_sfnt_off0001337d.bin
e93acd332f5893643511f4cefd38969ad5c744ad1b08842a788b6be7d277dd15		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1337D 16204 bytes

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