Malicious PDF — malware analysis report

Static analysis result for SHA-256 daed1002900562bb…

MALICIOUS

PDF

82.6 KB Created: 2021-03-19 13:55:38 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: a1f44c050bfbc0a29f17f9e70f9212af SHA-1: 56a98b123ee6b1308b9d5aef7ab598f11d74e8af SHA-256: daed1002900562bbb4e1c873bfce5e12b70a97418f207a680cc90cceb1900a2c
96 Risk Score

Malware Insights

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

The file is identified as a malicious PDF by multiple heuristics and a machine learning classifier. It contains embedded URLs that point to potentially malicious domains, suggesting a phishing or malware distribution attempt. The document body, though partially corrupted, indicates a lure related to an 'apush period 1 and 2 test pdf', likely intended to trick users into visiting a malicious URL.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9990

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://xezojetit.ru/award?keyword=apush+period+1+and+2+test+pdf
    • http://seseletozub.iblogger.org/how_heavy_is_a_bag_of_sand.pdf
    • http://on-arenas.com/65471851572fw53n.pdf
    • http://nnorm-id.com/class_paul_fussellw7543.pdf
    • http://7lessons.website/area_of_a_circle_worksheet_with_answersxlvwl.pdf
    • http://lozomaneje.getenjoyment.net/free_self_esteem_worksheets_for_adults.pdf
    • http://astropsychology.website/what_do_calla_lilies_symbolizevltvk.pdf
    • http://wegansit.space/angular_deformity_varus094x7.pdf
    • http://sigixexizo.sportsontheweb.net/31582349876.pdf
    • http://zafimapi.22web.org/anaconda_for_windows_7_free.pdf
    • http://supportcopyright.net/tifamadusepaxeu094i.pdf
    • http://lnstagramcopyrightmanagement.com/4868329597n14fx.pdf
    • http://lotsmen.com/faparinalidhklu4.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • http://dowavatig.rf.gd/aagadu_video_songs_hdvd_9.pdf
    • http://jamenajiko.myartsonline.com/ansys_thermal_analysis.pdf
    • https://eb9d0a7c-f241-4274-9260-18def620c3fd.filesusr.com/ugd/796b85_f063c18911bd41cfa827e129c01cec3d.pdf?index=true
    • https://a0bbd489-bf03-48a0-8e93-88abd0751e5b.filesusr.com/ugd/370ea2_1fdaf96c3b5f4ad5b7b59c9be39a36e8.pdf?index=true
    • https://dd907c4b-492b-4b4d-bf3c-9f0b7a2bd2c7.filesusr.com/ugd/96a426_0a20c0eebee247fb9a8eb8854faf6d47.pdf?index=true
    • https://43fe4710-460a-4ad3-90dc-2dd795c51528.filesusr.com/ugd/a32c20_a32e9196b56242a5b475417ee7bf6929.pdf?index=true
    • http://xotepugiz.rf.gd/chinese_visa_application_form_dubai.pdf
    • http://jiregaruxu.rf.gd/murray_lawn_mower_wont_stay_started.pdf
    • http://zopefunexot.epizy.com/illustrator_calligraphy_brushes_free_cs6.pdf
    • https://c301b42c-deab-4116-afcd-a09dd0728425.filesusr.com/ugd/4bb894_e2c4c1a5a8654ffea28c76f290ed876d.pdf?index=true
    • http://vatugiw.epizy.com/what_is_f2_on_sunbeam_electric_blanket.pdf
    • http://ribafaga.rf.gd/72482899092.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f684.bin
ea308d5fc18ba4a5fea72d5a55e01bb53bf1cdb2974e79162f2a5e7ab614980c		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF684 5152 bytes
font_01_sfnt_off00010805.bin
7b3172dd44f4d57cd31758e8362ed96c33b7b78555dcfa27f0bf8909d1412873		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10805 11304 bytes
font_02_sfnt_off00012e85.bin
4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x12E85 4324 bytes

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