Malicious PDF — malware analysis report

Static analysis result for SHA-256 cc4c56097f274064…

MALICIOUS

PDF

81.2 KB Created: 2021-03-17 01:41:45 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7ffa65f55c65067995722d960d2099f3 SHA-1: 2e7f7922fc4055e316c83f08a48945acf2c4502b SHA-256: cc4c56097f27406465f743e9e40c38c18fdcfa5d11a4555bb52fb864a6463aa9
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 suspicious domain. The ML classifier and ClamAV detection strongly indicate maliciousness. The document body, though partially corrupted, suggests a lure related to "unique facts about halogens" to entice users to click the malicious link.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://kuzutuzo.ru/wix?keyword=unique+facts+about+halogens
    • http://wijutomotagam.mypressonline.com/spring_boot_jpa_tutorial.pdf
    • http://gekifek.scienceontheweb.net/le_corbusier_five_points_of_architecture.pdf
    • http://tezibif.mygamesonline.org/xefisew.pdf
    • http://chaptejvxz.fun/which_of_the_following_are_the_key_elements_of_organizational_culturenpoqp.pdf
    • https://cdn.sqhk.co/pobopuwubox/ndcfibu/samowugenuzakisovidez.pdf
    • http://tometifo.getenjoyment.net/biology_test_questions_and_answers.pdf
    • http://b4shop.icu/redebusejajikevataxezkqnq.pdf
    • http://japarof.mywebcommunity.org/practice_tests_for_cambridge_english_preliminary_pet.pdf
    • http://vugekowuzujed.scienceontheweb.net/25262187232.pdf
    • http://magic-spring.com/51698005162vyv5e.pdf
    • https://cdn.sqhk.co/nixenexax/a8zgbCg/17057955607.pdf
    • http://creditstar-kabinet.com/various_prayers_lord_be_the_center_of_my_life_lyricscv8q9.pdf
    • http://alifan.store/bulakegodebebefaloginotdf3x2.pdf
    • https://cdn.sqhk.co/nofatazor/RGsgc4t/levorel.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/zarelusipofox/ariesms_training_guide_1-_250.pdf
    • http://ximuxulizi.myartsonline.com/riderijudi.pdf
    • https://s3.amazonaws.com/bibejovixapis/biluvirilab.pdf
    • https://uploads.strikinglycdn.com/files/e4bd3512-fca5-476e-8873-ebcf4e8fad84/95421560154.pdf
    • https://s3.amazonaws.com/lodazojamuva/99151202392.pdf
    • https://s3.amazonaws.com/gapivegek/doubles_and_halves_worksheet_year_3.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_off0000ff8c.bin
ebd8749a4d0faff312c0d8673184d4c30dae400499fe1b6e91b279444f753a57
pdf-font-stream PDF embedded font (sfnt) at offset 0xFF8C 5304 bytes
font_01_sfnt_off000111a0.bin
e6178724c9c43f1e693d32baba825ec18b914670de99d2b1f1fe1510eaf39996
pdf-font-stream PDF embedded font (sfnt) at offset 0x111A0 11096 bytes