Malicious PDF — malware analysis report

Static analysis result for SHA-256 e27455ba348badfc…

MALICIOUS

PDF

78.6 KB Created: 2021-03-23 20:40:03 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-08-25
MD5: e52a6f8355a1b5d74f456f6eb2c93168 SHA-1: debb9d911e3557b7e442023f2368c5be8a057021 SHA-256: e27455ba348badfc14fd368636b13eeb29e5145088d921e93805795e58fe15dd
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 ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The document contains numerous external links, many pointing to disposable domains, suggesting a link farm or phishing operation. The primary URL, 'https://xajibur.ru/aws?utm_term=how+to+apply+3m+strips', is presented as a lure for information related to applying 3M strips, likely a pretext for a scam or phishing attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://xajibur.ru/aws?utm_term=how+to+apply+3m+strips PDF link annotation
    • https://cdn.sqhk.co/vozevadijut/gdWsLHA/the_sims_bustin_out_ps2_cheats_not_working.pdfIn PDF document text
    • https://cdn.sqhk.co/kamupudoro/lhiDibZ/bowmasters_online_free_play.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4415045/normal_6044db3c4824d.pdfIn PDF document text
    • https://cdn.sqhk.co/fenazijeguk/rkggvhj/rerevanivus.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367961/normal_60492849859e9.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4471682/normal_60150e74d02be.pdfIn PDF document text
    • https://cdn.sqhk.co/luzigagoguna/Whf8hf4/anime_piano_magic_tiles_hot_song_mod_apk.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4417327/normal_5ff7d2bedea9e.pdfIn PDF document text
    • https://cdn.sqhk.co/migawudewiw/aAjfgeW/xebujewewowukubeteso.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4425727/normal_5ffff21b394c1.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370057/normal_60245877a125a.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://bujixexugezudu.rf.gd/penutifigekogumivonesip.pdfIn PDF document text
    • http://suvofaga.rf.gd/google_sketchup_free_download_full_version_2019.pdfIn PDF document text
    • https://528a8416-53f4-4693-bcf0-540471887af1.filesusr.com/ugd/c3aa89_7245ea0747174f6888ca7534a005eb81.pdf?index=trueIn PDF document text
    • http://rawodofomer.epizy.com/php_5.1_for_beginners_free_download.pdfIn PDF document text
    • https://e6f9d1db-9bad-45ba-a188-0e8e378e8087.filesusr.com/ugd/99b222_1eb6f0d2f97940b7bb915b1dbc5c56a1.pdf?index=trueIn PDF document text
    • https://dd3a609d-fcd9-461e-ae06-f7e9ec6f332d.filesusr.com/ugd/811c3f_dbaa15c3c344430ebdb3f34f34794c82.pdf?index=trueIn PDF document text
    • http://vubibejibujala.rf.gd/fabowoduxumunuw.pdfIn PDF document text
    • http://zifosasexinedi.rf.gd/tecsun_pl-380_manual.pdfIn PDF document text
    • https://9ffa65b4-b95e-481c-977d-2cf6acaa57d7.filesusr.com/ugd/f68d46_5a1cf6b8d840418b9490d687818c9249.pdf?index=trueIn PDF document text
    • https://69f6cc44-9198-4e41-bafa-43503dba92bf.filesusr.com/ugd/dec231_223938cc0c0548e794ce2aa2108b9c70.pdf?index=trueIn 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

Related samples 8

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

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f51d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF51D 5284 bytes
SHA-256: 313f113661560a9be53fd82298a052bce85e8549cabdd2f36e1ae87d33dc033b
font_01_sfnt_off00010716.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10716 10720 bytes
SHA-256: 6f95aceed627f52fabc8fc47a4a2885e782f481376f9e617851d13985a70b66e

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