Malicious PDF — malware analysis report

Static analysis result for SHA-256 ed036e4172ae5459…

MALICIOUS

PDF

77.3 KB Created: 2021-03-31 04:13:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: c999c0819916c47dff3c15f425478254 SHA-1: 722f5ae0f40991a2b154d2c4e6f1070da7ff9483 SHA-256: ed036e4172ae5459440b74ef9fb5ae4ef35c930384cd0cce3759b311de51bf01
96 Risk Score

Malware Insights

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

The PDF file contains heuristics indicating the presence of external URIs and is flagged by a machine learning classifier and ClamAV as malicious. The document body, though heavily obfuscated, contains keywords related to 'Dragonvale unlimited gems 2020', suggesting a phishing lure. The primary IOC is a URL that appears to be the destination for this lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

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://botokaw.ru/wix?keyword=dragonvale+unlimited+gems+2020
    • http://bestpriceforukraine.xyz/honda_civic_2006_radio_code_error_et2ube.pdf
    • http://xruhdfo.site/58386501012y0rjn.pdf
    • http://vannlight.ru/first_aid_treatment_for_burns_videokbjt3.pdf
    • http://creditpm.com/ti_nspire_cx_ii_t_spiele_pokemon1sxov.pdf
    • http://digitaltoolsfor.xyz/56322282025ngrnu.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/likerajatob/dusedusidedezawojus.pdf
    • https://uploads.strikinglycdn.com/files/fd7294eb-1b84-49c5-99f4-06f374cdf849/how_much_is_brandy_norwood_net_worth.pdf
    • https://s3.amazonaws.com/natewared/lotadopivazepolo.pdf
    • https://uploads.strikinglycdn.com/files/3fb70c38-35d0-4941-8b04-72b2412a6a16/fawatazu.pdf
    • https://s3.amazonaws.com/sezewu/tukedegovexedulukodegow.pdf
    • https://uploads.strikinglycdn.com/files/4086e690-345c-4742-8770-e29e9b3387bf/70009000568.pdf
    • https://s3.amazonaws.com/jezobasit/geethanjali_movie_audio_naa_songs.pdf
    • https://uploads.strikinglycdn.com/files/4a9bec13-d66c-4a1d-b618-4c190e3d70cd/nuvebozezikafirazugit.pdf
    • https://uploads.strikinglycdn.com/files/1c0fa84f-2c22-4811-baa9-5342d3ca6d90/zexuzuzavofopuzom.pdf
    • https://s3.amazonaws.com/midizaxopazeji/49350732612.pdf
    • https://uploads.strikinglycdn.com/files/3ea8c9b2-d2ca-478a-ad93-390c7a5946ad/famine_affluence_and_morality_peter_singer_analysis.pdf
    • http://donusifitaki.rf.gd/43389600790.pdf
    • https://s3.amazonaws.com/tobovunoberiki/dramatic_irony_examples_in_romeo_and_juliet_act_3.pdf
    • https://uploads.strikinglycdn.com/files/c8368dfb-543f-465a-a621-01bcf119d052/plantronics_voyager_5200_wireless_bluetooth_headset_charger.pdf
    • https://s3.amazonaws.com/bibejovixapis/24370278426.pdf
    • https://uploads.strikinglycdn.com/files/ecd6b921-d72f-4df3-b544-1b1f4a1d6c3c/klipsch_promedia_2.1_thx_certified_computer_speaker_system_w_subwoofer.pdf
    • https://uploads.strikinglycdn.com/files/1dc846ff-7cab-4dfc-9916-27945c1de2a9/canon_speedlite_580ex_ii_flash_manual.pdf
    • http://wuvasof.epizy.com/puxefegokakuw.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_off0000efec.bin
e7edb8e53aa872cd55aa5a398f3e09d07307d8567b0dc4cebcfe420c566d7805		 pdf-font-stream PDF embedded font (sfnt) at offset 0xEFEC 5480 bytes
font_01_sfnt_off00010283.bin
cc754b26f8ee56af04630be3ce3054058f01743b926810f9004abb96472b5191		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10283 10952 bytes

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