Malicious PDF — malware analysis report

Static analysis result for SHA-256 b5278bec2f66737c…

MALICIOUS

PDF

74.0 KB Created: 2021-03-12 09:47:42 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: a5ecc0373e71b46ebae4accb9ece681f SHA-1: 76533f955d30f4b6a5b192b0bec410b1e46fe889 SHA-256: b5278bec2f66737c2f6a085f4da52c27f71024020281d7fc1b60795403875853
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 'https://xezojetit.ru/123?utm_term=pokemon+mallow+trial+guide', which is likely a phishing or malware distribution URL. The document body, though heavily obfuscated, suggests a lure related to a 'Pokemon mallow trial guide'. No scripts were extracted, but the presence of external URIs and the overall detection profile strongly suggest a phishing or downloader attack pattern.

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://xezojetit.ru/123?utm_term=pokemon+mallow+trial+guide
    • http://rankingcoach-apps.com/lux_programmable_thermostat_tx9600ts_manual2l4kq.pdf
    • https://cdn.sqhk.co/tamoravuwera/cngfjbd/top_scorer_in_ipl_2019_orange_cap.pdf
    • http://tixshopclub.space/83765839999zk35r.pdf
    • http://scriptbook.xyz/figorasotajibiwonetozumuuyhij.pdf
    • https://cdn.sqhk.co/wodelaganav/dzgcKsr/ffxiv_name_generator_miqo_te.pdf
    • http://instapriz365.online/how_to_use_basaglar_kwikpenstffm.pdf
    • https://cdn.sqhk.co/xawefigi/he96Ejb/lords_and_castles_cheats.pdf
    • http://thefortykuti.com/652839482574fe9m.pdf
    • https://cdn.sqhk.co/matikefateri/vvjiHgc/hot_videos_netflix_2019_hot_videos_youtube.pdf
    • https://cdn.sqhk.co/fewibefanid/gigigja/pilot_flying_j_fuel_card_phone_number.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://108bb973-5399-4bf7-a70e-a18780752cac.filesusr.com/ugd/760a88_ef8b3b8ae897450985889c05f53fbfb9.pdf?index=true
    • https://s3.amazonaws.com/safenalavojuwu/58987186758.pdf
    • https://1ac5d900-0c69-4f12-8b1d-4e209472b8d2.filesusr.com/ugd/828753_61eb5b67466d4f7590aabbb8b89b5155.pdf?index=true
    • https://uploads.strikinglycdn.com/files/e43ace4b-99a2-4caa-91f9-80e57646ab22/is_purgatory_mentioned_anywhere_in_the_bible.pdf
    • https://uploads.strikinglycdn.com/files/f2ff8835-bd09-40f6-ba97-0c13fee5e940/i_cant_make_this_up.pdf
    • https://s3.amazonaws.com/bejenosugede/94632472023.pdf
    • https://uploads.strikinglycdn.com/files/e2942f38-31b4-4ea1-9276-c02a53719599/dark_souls_3_covenants_offline_farming.pdf
    • https://s3.amazonaws.com/jevedijadiki/how_to_write_a_book_report_college.pdf
    • https://s3.amazonaws.com/batoragubukepo/kajipoxul.pdf
    • https://98350ace-7ac4-4f38-a9d9-579fdad8050b.filesusr.com/ugd/9b2d9b_998a370a67284165b75e613636e92ac0.pdf?index=true
    • https://s3.amazonaws.com/tobobowu/43811503975.pdf
    • https://uploads.strikinglycdn.com/files/bed38aaa-a8d7-4437-bdba-17e3c7f27b3a/89508293418.pdf
    • https://s3.amazonaws.com/pegek/wivudum.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_off0000e2f6.bin
f07974f8a948e82123f35d7060e2fa97f3752433cedb7e5e23af3695020f09ea		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE2F6 5124 bytes
font_01_sfnt_off0000f45f.bin
024c45dd16be8d4b0cb9fca30995b72be656d8864e1d130a23758e08364db6c5		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF45F 11480 bytes

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