Malicious PDF — malware analysis report

Static analysis result for SHA-256 4aefa02c2b35948b…

MALICIOUS

PDF

80.1 KB Created: 2021-03-16 21:21:28 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6782d33107c330e95359c1145e6f83da SHA-1: 40a0778ab74555a21f8c4da9a509d725b3f8645b SHA-256: 4aefa02c2b35948bcb5f038374e32cec48880cdc4b059b21819689e326b877a4
96 Risk Score

Malware Insights

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

The file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains an embedded URI pointing to a suspicious domain, which is a common tactic for phishing or malware distribution. The document body, though heavily obfuscated, suggests a lure related to templates, further supporting a phishing or social engineering attack pattern.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://dafemum.ru/123?utm_term=abby+cadabby+face+template
    • http://boxijogirexu.medianewsonline.com/canon_canoscan_lide_300_datasheet.pdf
    • http://lobabinuladeri.medianewsonline.com/how_do_you_clean_a_bissell_powersteamer_powerbrush.pdf
    • http://boost-shop.xyz/spoken_english_online_classes_in_chennaid676a.pdf
    • http://lolkek.xyz/64042964539evtdj.pdf
    • https://cdn.sqhk.co/dejijadu/cjdvggh/42753115691.pdf
    • https://cdn.sqhk.co/gizukakom/jdzhh52/lewoliruxojo.pdf
    • http://summ-green.fun/how_to_connect_yamaha_yas_108_to_tvz73li.pdf
    • http://taptopbot.com/three_phase_motor_single_phase_supply3weyu.pdf
    • http://bio-ita.fun/pexavazugomawawixataxope18z9w.pdf
    • http://fitokaps.xyz/technology_education_certification_practice_testvdurz.pdf
    • http://prolac.ru/projected_cash_flow_template_free3338c.pdf
    • https://cdn.sqhk.co/ragejeli/aXiauji/jixuburupabijepafije.pdf
    • http://blancop.xyz/58248603186a9unv.pdf
    • http://lomidal.mygamesonline.org/79307538237.pdf
    • https://lobigemef.weebly.com/uploads/1/3/2/3/132303116/4258533.pdf
    • http://kikababono.mywebcommunity.org/nuzulimakubunek.pdf
    • https://cdn.sqhk.co/netimawifes/ypehgia/67569823337.pdf
    • http://subfamjtii.site/pabitasonomaserugugegmtsox.pdf
    • https://namodezax.weebly.com/uploads/1/3/6/0/136055978/8aa7b8db1c6e3.pdf
    • https://xofiwilo.weebly.com/uploads/1/3/1/4/131453946/5867626.pdf
    • http://gopadaxin.mywebcommunity.org/turezutipidemojufapek.pdf
    • http://fejukoturig.medianewsonline.com/91356202260.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • 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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e429.bin
926659305b9bf6d1350f04f19c0d75bb0138b98af6875fe97d5e09708dc80fee		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE429 5256 bytes
font_01_sfnt_off0000f607.bin
a414cb7d8583a723b3a3cdc436f3be0208387d338ea3457c1380a123c1dbe394		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF607 2152 bytes
font_02_sfnt_off0000ff59.bin
51ebeec29509b87aa858d500e37ac8853184703d07d1f913ce36d8e1dc7764c0		 pdf-font-stream PDF embedded font (sfnt) at offset 0xFF59 1800 bytes
font_03_sfnt_off000107e7.bin
c7769f3d24da16c024519b52469832d65858b1401bf47a6cbb62c9d8af17ca63		 pdf-font-stream PDF embedded font (sfnt) at offset 0x107E7 12400 bytes

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