Malicious PDF — malware analysis report

Static analysis result for SHA-256 d056482d5eac5fac…

MALICIOUS

PDF

86.4 KB Created: 2021-03-25 14:12:05 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7a28ae087ef29918e73fab54accaa03e SHA-1: 371a6246f8cb25afd5ca078d6d372a3d67c0e4d7 SHA-256: d056482d5eac5facb0b0c00f2bdb1d61ca35ecf27291ff72e402832b98d52307
96 Risk Score

Malware Insights

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

The PDF file was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains an embedded URL pointing to 'maypoin.ru' which is presented as a lure for 'joker movie free youtube'. This suggests the document is designed to redirect users to a phishing or malware distribution site.

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://maypoin.ru/wix?keyword=joker+movie+free+youtube
    • https://cdn.sqhk.co/deguxigu/f0ihhg1/fashion_croquis_templates_front_and_back.pdf
    • https://cdn.sqhk.co/fimegasaz/haRS8X4/free_ps_plus_codes_ps4.pdf
    • https://cdn.sqhk.co/rivitovolu/kgeiaid/22976838700.pdf
    • https://cdn.sqhk.co/wuxobilan/jcwh3gj/kotezufekaxawopoboxikol.pdf
    • https://cdn.sqhk.co/dukosisevu/bghhf5u/chocolate_candy_recipes_for_silicone_molds.pdf
    • https://cdn.sqhk.co/xoxujagemo/dghO4jg/mepasaturulasizidogodek.pdf
    • http://vulgargirls.fun/mowivugo3klz1.pdf
    • http://parrrtner.xyz/what_is_the_correct_order_of_the_percy_jackson_booksxcb92.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/tomamujuf/84983096107.pdf
    • https://uploads.strikinglycdn.com/files/74d02fc9-6725-4727-9633-b811965828b8/92200092024.pdf
    • https://s3.amazonaws.com/viregujipowuru/llegada_de_los_androides_19_y_20.pdf
    • https://uploads.strikinglycdn.com/files/8543e2bd-c8ec-4016-bc69-288a6ed9fe5d/weight_watchers_scale_manual_ww87.pdf
    • https://s3.amazonaws.com/dikomavomem/what_does_first_mean_in_spanish.pdf
    • https://uploads.strikinglycdn.com/files/5e8c4cdd-38ff-4d99-b6f9-20964a8c4a3b/sapamexopivapokisederame.pdf
    • https://s3.amazonaws.com/mejigavukolu/vizio_29_inch_2.0_sound_bar_review.pdf
    • http://wuginafana.epizy.com/guppy_care_sheet.pdf
    • https://uploads.strikinglycdn.com/files/5c43f33a-b0a5-4849-9270-45fc29f8d57d/85458258545.pdf
    • https://s3.amazonaws.com/luxelula/28294648736.pdf
    • http://sakuvutupozil.rf.gd/jevitulelaxofugiso.pdf
    • https://uploads.strikinglycdn.com/files/81224871-9b97-47ab-bfdf-7346976bd2a0/what_is_the_plot_of_the_poem_the_raven.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000fe37.bin
e9ac514828ab45d6eb1aafd20390922879542dd16c3ae3a94e8a88662e11babe
pdf-font-stream PDF embedded font (sfnt) at offset 0xFE37 4848 bytes
font_01_sfnt_off00010ebd.bin
8011a0c58b2d09b5d6e7180c24977048fdfbbd4ec30f6d59f72394cda1097d29
pdf-font-stream PDF embedded font (sfnt) at offset 0x10EBD 12104 bytes
font_02_sfnt_off000136bf.bin
ead7fd593d7f5feef6f283420e9b55f8fa4552f107c64b0063d474dd3355abd8
pdf-font-stream PDF embedded font (sfnt) at offset 0x136BF 16164 bytes