Malicious PDF — malware analysis report

Static analysis result for SHA-256 2d1b7b6143d8efb2…

MALICIOUS

PDF

133.2 KB Created: 2021-04-19 05:54:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 30b9370500634aec84afa28b97c15fd8 SHA-1: 792c193f1e172342d8321c951de63b24cebb886d SHA-256: 2d1b7b6143d8efb2b4187911a274324a12486301c8de033d5699b455e665f230
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 URL, identified as a phishing attempt. The ML classifier and ClamAV detection strongly indicate malicious intent. The document body, though partially corrupted, suggests a lure related to religious text to mask the malicious URL.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9950

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://seumenha.ru/strik?utm_term=sri+lakshmi+narasimha+swamy+ashtothram+in+telugu
    • https://cdn.sqhk.co/kekelivig/jdJf1ic/janumewepopugisafef.pdf
    • http://lumogodasekepi.mypressonline.com/secure_attachment_theory.pdf
    • http://bigmagazin.xyz/duwixusodasurefabozomp998.pdf
    • https://cdn.sqhk.co/kigimole/uhfA3Au/brief_history_of_south_africa_apartheid.pdf
    • https://mogatuzutixu.weebly.com/uploads/1/3/4/6/134684840/tobubuke-lutosidix.pdf
    • http://nejevefivi.mypressonline.com/arte_neoclassica.pdf
    • http://bukanugizini.mygamesonline.org/tunezafu.pdf
    • http://pasadurasasagi.medianewsonline.com/varillas_roscadas_medidas.pdf
    • http://teasmall.space/android_keyboard_aosp_apk8vz5u.pdf
    • http://com-signto6.xyz/xepagipory9jz.pdf
    • https://bonopabugo.weebly.com/uploads/1/3/4/5/134581776/jomomok-pibevef-badojenulewed-wugexidudokade.pdf
    • https://cdn.sqhk.co/rimubafil/vhbjcie/tenewatowozametekeferut.pdf
    • https://lularavubaw.weebly.com/uploads/1/3/4/5/134522054/vabifigo.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://fedorahosted.org/lohit
    • http://www.daltonmaag.com/
    • http://jikelaxapexa.onlinewebshop.net/libro_manual_de_epidemiologia_y_salud_publica.pdf
    • http://sukokovevaz.atwebpages.com/air_force_y_group_paper_2020.pdf
    • http://wutorokanotomav.onlinewebshop.net/gazetted_holidays_2020_in_delhi.pdf
    • http://gukedam.rf.gd/49387946323.pdf
    • http://jawafezirosozo.epizy.com/64375908058.pdf
    • http://reditavipesef.rf.gd/best_snare_drum_rudiment_book.pdf
    • http://dojizanutirisap.rf.gd/animal_farm_final_test_answer_key.pdf
    • http://sorisavitekinuj.onlinewebshop.net/zafowerabemapu.pdf
    • http://dewutawezidu.rf.gd/blacktop_mojo_burn_the_ships.pdf
    • http://manosotidokef.myartsonline.com/vezinibofolulebiron.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 5

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000155f6.bin
c18c11c4171da7864181370e35e9a042b15023ae134f245c53098148c7f9a580		 pdf-font-stream PDF embedded font (sfnt) at offset 0x155F6 5340 bytes
font_01_sfnt_off00016802.bin
0f1a3b741618903e3d614532e05684041b7f024e8daca916d43d50e9478554c4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x16802 40676 bytes
font_02_sfnt_off0001b7d2.bin
077b5a1ddccf32264e63e3c6233330385ec6255518c7d1b0dfa3df004f5b7fd7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1B7D2 12824 bytes
font_03_sfnt_off0001df44.bin
ce7e2e230a41ba6fc2d7d2240890c8289d67876d84a3d076d67c0b48111c8230		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1DF44 4324 bytes
font_04_sfnt_off0001ed44.bin
b34e906f30130e9b84065f9142e63b002295d3825eff4ab76fe1f812e34a3fe0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1ED44 6924 bytes

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