Malicious PDF — malware analysis report

Static analysis result for SHA-256 30594ea126dae21d…

MALICIOUS

PDF

76.6 KB Created: 2021-04-06 07:47:48 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: a2282583785ed84429817b73214562b2 SHA-1: 7b3a562faa7f1b40cc9a6cec8be4609e6ffb4d19 SHA-256: 30594ea126dae21d1e5d6632a026578d1ae1b0210fea2982f6755aa29bddfc89
254 Risk Score

Malware Insights

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

The file is a PDF document that contains numerous embedded links, including one identified as a malicious redirector. The heuristic 'SE_ADVANCE_FEE_SCAM_LURE' strongly suggests the document's content is designed to trick users into believing they are involved in a lottery or prize scheme, a common tactic for advance-fee fraud. The presence of a malicious redirector link indicates an attempt to lead the user to a harmful site, likely to further the scam or deliver a payload.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9956

Heuristics 6

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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
  • Advance-fee lottery/parcel scam lure high SE_ADVANCE_FEE_SCAM_LURE
    Document contains lottery/beneficiary or prize language together with large-value draft/funds wording and parcel/courier delivery requirements. This is a classic advance-fee fraud document shape.
  • 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://yafferge.ru/123?utm_term=beyonce+halo+mp4+free
    • https://cdn-cms.f-static.net/uploads/4463552/normal_6062ffe5f304d.pdf
    • http://xolululumaw.iblogger.org/aimbot_hack_pubg_mobile_android.pdf
    • https://cdn.sqhk.co/zasokolof/iFjjjgd/97508969598.pdf
    • https://cdn-cms.f-static.net/uploads/4474191/normal_60642299983d6.pdf
    • https://cdn.sqhk.co/xixujipum/hbigcgj/32212170248.pdf
    • https://cdn.sqhk.co/likunubiba/etdHjhd/10757190990.pdf
    • https://cdn.sqhk.co/javufikari/jcjf9mF/stickman_fight_animation_maker.pdf
    • https://cdn.sqhk.co/jalotenabo/mhgOgjr/34969162483.pdf
    • https://cdn-cms.f-static.net/uploads/4405902/normal_60146909b173b.pdf
    • https://fadusoga.weebly.com/uploads/1/3/0/7/130739873/63fb3c9e.pdf
    • https://cdn-cms.f-static.net/uploads/4382193/normal_601830b963b18.pdf
    • https://mirodogewe.weebly.com/uploads/1/3/4/8/134861862/rijil_xigidow.pdf
    • https://cdn.sqhk.co/nagebagem/5hirCUy/94105597311.pdf
    • https://somotudodij.weebly.com/uploads/1/3/4/6/134699902/guluguzise_kenozeka_debow.pdf
    • https://buzoraxuv.weebly.com/uploads/1/3/4/3/134366179/nularifuku_vedakuk_mifiler.pdf
    • https://cdn.sqhk.co/sebuwemid/8jghggl/51506945230.pdf
    • http://fusubakitakudup.66ghz.com/calamity_mod_summoner_guide.pdf
    • https://cdn-cms.f-static.net/uploads/4448735/normal_6036ae8f262b0.pdf
    • https://cdn.sqhk.co/jawubibegeba/dqIhiig/beat_street_breakdown_lyrics.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/tubukeganuji/59892478736.pdf
    • http://mirokukuvo.rf.gd/abridged_novels_free_download.pdf
    • http://zazafinabasa.rf.gd/different_learning_styles_in_education.pdf
    • https://s3.amazonaws.com/sepovutapakogaf/pwgsc_security_screening_certificate_and_briefing_form.pdf
    • https://s3.amazonaws.com/putelekireza/43429662735.pdf
    • https://s3.amazonaws.com/laradusa/wegomilovifowimukenukon.pdf
    • http://renedutej.rf.gd/easy_cad_drawing_software_free.pdf
    • https://s3.amazonaws.com/pasutiz/wow_classic_inscription_guide.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_off0000ecd8.bin
77003cadd66d78f443345a28f20c8b3bfe5040ecd347d1d3ec89049576a3a87e		 pdf-font-stream PDF embedded font (sfnt) at offset 0xECD8 5316 bytes
font_01_sfnt_off0000feda.bin
66861a85fb35a05e2c8cb7cc9a8394e8386fa96b677512b6551c4dd5bcd35c4f		 pdf-font-stream PDF embedded font (sfnt) at offset 0xFEDA 11212 bytes

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