Malicious PDF — malware analysis report

Static analysis result for SHA-256 95e5e4d85a7ae6f2…

MALICIOUS

PDF

90.0 KB Created: 2021-03-14 06:24:55 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8a236ed2c19b1036cae9a75807983445 SHA-1: ac43d2130d624429d25fb884cd79d5237cd31f75 SHA-256: 95e5e4d85a7ae6f28c33135efdcfefb967c2d7b0418ef7c1468b3589229a21db
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 URL associated with 'basic excel pdf download', suggesting a phishing or social engineering lure. ClamAV detection and ML classification strongly indicate maliciousness. The presence of multiple unknown reputation URLs further supports the malicious nature of this document, likely serving as a dropper for further malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9986

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://maypoin.ru/award?keyword=basic+excel+pdf+download
    • https://bojuwidus.weebly.com/uploads/1/3/4/6/134698781/vozikisikog.pdf
    • http://liketime.online/cambridge_10_test_3_listening_answersih4vl.pdf
    • https://nojemalof.weebly.com/uploads/1/3/0/8/130873850/nogezabo.pdf
    • http://boost-shop.xyz/retipo95zyg.pdf
    • http://realnoe-obshenie.online/how_does_the_legal_system_work_in_the_uke76qd.pdf
    • https://fenanasu.weebly.com/uploads/1/3/1/3/131384656/goremogefenuvope.pdf
    • http://golomashvanna.xyz/can_2gig_be_self_monitored07ddm.pdf
    • http://saxobupazes.sportsontheweb.net/reaction_mechanism_worksheet.pdf
    • https://cdn-cms.f-static.net/uploads/4489263/normal_5fdc0683719e3.pdf
    • http://fumexijana.getenjoyment.net/biwafiludur.pdf
    • https://static.s123-cdn-static.com/uploads/4477376/normal_5ff513474645f.pdf
    • https://peditakufi.weebly.com/uploads/1/3/6/0/136097449/0a1d9edb70.pdf
    • http://revodegasiger.sportsontheweb.net/satan_kabbalah_libro.pdf
    • https://cdn-cms.f-static.net/uploads/4377414/normal_602d4201726c5.pdf
    • http://copyrightsupporthelpcenter.com/lenovo_thinkcentre_beep_codes_3-3-3-3rbnw7.pdf
    • https://butegipabozu.weebly.com/uploads/1/3/4/2/134235803/ripesebuxinun.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://uploads.strikinglycdn.com/files/7550bdd1-7834-42fa-b751-080554a24eb4/sat_math_practice_varsity_tutors.pdf
    • http://pojozija.onlinewebshop.net/sylvania_portable_dvd_player_charger_walmart.pdf
    • https://uploads.strikinglycdn.com/files/1d81b0f3-6c9a-4c41-b1ab-070950f83313/wunipesivebapitivolurikot.pdf
    • https://uploads.strikinglycdn.com/files/a3ab6ed7-be79-40b4-a56a-0cb189a4417a/night_shift_commodores_lyrics_meaning.pdf
    • https://uploads.strikinglycdn.com/files/7955f0b4-c59e-4db7-8bbc-69aeef1e1fe9/is_50_shades_of_grey_on_netflix_or_hulu.pdf
    • https://uploads.strikinglycdn.com/files/a0fd7f3f-58a6-44f3-ac84-7b6e4538f466/54507532367.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 5

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ed44.bin
b8b397a7ff1f9fb90bf754d082a4da72ca2caf2b904bb90fed6ad57714c78154		 pdf-font-stream PDF embedded font (sfnt) at offset 0xED44 5260 bytes
font_01_sfnt_off0000ff50.bin
4e03e36635361349d1fa604b9f2dc6b29f87008dca33a84613dd3214531a1d68		 pdf-font-stream PDF embedded font (sfnt) at offset 0xFF50 5492 bytes
font_02_sfnt_off0001132c.bin
f6aebc46b7b791a93bb2326f517be073fd3c8ce41fa057ad1502646d423a4607		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1132C 11324 bytes
font_03_sfnt_off00013a05.bin
ac4fccef519d8de615d480d892dd5d8c8dea6594218a6dc9dd24e52350449db8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x13A05 16516 bytes
font_04_sfnt_off0001506f.bin
f27f1dab863be407bc80ce69f069aaa000ada345c50a5fba1d6b915b5f603bb6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1506F 1736 bytes

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