Malicious PDF — malware analysis report

Static analysis result for SHA-256 54739cf0c0bf4501…

MALICIOUS

PDF

90.7 KB Created: 2021-04-07 14:18:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: b21e8a040125c1f807bef9da2741af50 SHA-1: de14b2dc066c64ca343e66d7ff8d3cba7377a08d SHA-256: 54739cf0c0bf4501955a9935b32d7aabe4da10d300d6518f77acfba8cbea0ec1
96 Risk Score

Malware Insights

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

The PDF file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains an embedded URI pointing to a suspicious domain, likely intended to redirect the user to a phishing or malware distribution site. The document body, though heavily obfuscated, suggests a lure related to song lyrics, which is a common tactic for social engineering.

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://bologen.ru/strik?utm_term=breakfast+at+tiffany%2527s+song+lyrics+meaning
    • https://sawuwirepugasup.weebly.com/uploads/1/3/0/9/130969548/wafoxusud.pdf
    • http://modezewop.mygamesonline.org/chapter_9_access_control_lists.pdf
    • http://dommasters.site/727345273370o1f6.pdf
    • https://cdn.sqhk.co/fosuzonarefi/2iiqmjg/velodyne_lidar_puck_datasheet.pdf
    • https://dukezowe.weebly.com/uploads/1/3/4/6/134602160/7614116.pdf
    • https://cdn.sqhk.co/wovupeni/pCjdcF5/blood_pressure_machine_omron_m2.pdf
    • http://jijomaj.getenjoyment.net/sixuvenakareraf.pdf
    • https://cdn.sqhk.co/gixelotopa/ibdcihe/80460734178.pdf
    • http://fisitupogavi.mypressonline.com/ielts_academic_writing_answer_sheet_task_1_and_2.pdf
    • https://cdn.sqhk.co/ligumorik/TDg72id/9821447767.pdf
    • http://teachost.com/cechy_podzielnoci_liczb_sprawdzian_klasa_4qb6vh.pdf
    • https://beborojefep.weebly.com/uploads/1/3/0/7/130739591/4743654.pdf
    • https://fatagijow.weebly.com/uploads/1/3/5/3/135314750/votokuvasobedup.pdf
    • http://azorocheat5.xyz/92915901793xjw8m.pdf
    • http://supariwepexafat.mywebcommunity.org/86161913540.pdf
    • http://bezprovodov.guru/skyrim_prettier_bandits5fgvb.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • http://wenibeliso.atwebpages.com/sueo_de_una_noche_de_verano_william_shakespeare_pelicula_completa.pdf
    • https://uploads.strikinglycdn.com/files/d2c7d44b-d6de-4de7-9f39-d68a8655511a/magesowadoxej.pdf
    • https://uploads.strikinglycdn.com/files/38b05edf-7b8d-4e5b-939d-2c3512edc239/guvemezexobiwi.pdf
    • https://uploads.strikinglycdn.com/files/8dbf431f-b79c-4c7a-9780-d328325cebab/tirisobofelesitidefizo.pdf
    • https://uploads.strikinglycdn.com/files/4d124891-dfb5-4e67-9b9c-423d58e55163/wolf_of_wall_street_netflix_2021.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 5

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f15f.bin
a71a49058599081eb8875db1550d16a07515e1b05c72ce81cf4452471970fba5		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF15F 5236 bytes
font_01_sfnt_off00010323.bin
3c1e10d2a449d65f16dbc6504515718aafe2b917d76683da61b54361652c0700		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10323 4564 bytes
font_02_sfnt_off0001145e.bin
1ec4d421952a8888a547b75916f0078e2ddee097f9434c491d85a7761e2d3b8e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1145E 11140 bytes
font_03_sfnt_off00013a2c.bin
9559dd1bd908241551916101fda3d445a26f5c4b506a1423f23393456f9d5940		 pdf-font-stream PDF embedded font (sfnt) at offset 0x13A2C 16036 bytes
font_04_sfnt_off00014e95.bin
0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333		 pdf-font-stream PDF embedded font (sfnt) at offset 0x14E95 4324 bytes

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