Malicious PDF — malware analysis report

Static analysis result for SHA-256 162249b6006b1374…

MALICIOUS

PDF

84.2 KB Created: 2021-03-21 01:58:10 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: e2256c37776acfcbf615920d0b8913ea SHA-1: b240a84dfcf038bb16c978704b911dabb4fe1723 SHA-256: 162249b6006b1374d7e97a55533d9ae89f8df8df72528efac1bcdb07e6b9fe67
96 Risk Score

Malware Insights

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

The file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains an embedded URL pointing to a suspicious domain, which is a common tactic for phishing or distributing further malware. The PDF structure and embedded content suggest it is designed to trick the user into visiting this external resource.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://dafemum.ru/strik?utm_term=no+logo+lower+receiver
    • https://wilowukodol.weebly.com/uploads/1/3/4/8/134881933/c7131474f6c176a.pdf
    • https://cdn.sqhk.co/mebereserab/imgeahd/41501272381.pdf
    • https://cdn.sqhk.co/nurijodefa/iZiggf9/dotofunedasuxuwexu.pdf
    • http://gojifoxedot.iblogger.org/vizoriviluxizavuwagutemi.pdf
    • http://reduslimer.website/el_caballero_dela_armadura_oxidada_resumen_capitulo_3_y_4ddan9.pdf
    • https://cdn.sqhk.co/poronujefino/bQekfjh/thai_alphabet_song_english_lyrics.pdf
    • http://jedufozares.22web.org/action_hero_biju_full_movie_hd.pdf
    • https://lisozuko.weebly.com/uploads/1/3/4/7/134723473/zeviv_gabonijivugeva_tebekegijadewum_kiveminona.pdf
    • http://grigolia-studio.ru/hp_officejet_5510_all_in_oneu84s9.pdf
    • https://nalivugubogepa.weebly.com/uploads/1/3/0/9/130969323/8493209.pdf
    • http://zabunugakope.22web.org/pibujuxogaduke.pdf
    • https://cdn.sqhk.co/wesuwajil/hdjhWKl/oscar_fish_price_in_chennai.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • https://uploads.strikinglycdn.com/files/481bf997-e8f2-4d68-8ef4-ad5d0452d72e/44532930969.pdf
    • https://uploads.strikinglycdn.com/files/8f93f082-9cac-4542-912d-44b15d8117c7/bajipirakav.pdf
    • http://zavipazo.epizy.com/call_of_duty_2_mac.pdf
    • https://uploads.strikinglycdn.com/files/6d17181e-9e14-4d1e-8242-350cc95ef3ca/lateral_thinking_techniques_example.pdf
    • http://nojimaduxonariz.rf.gd/adharmam_tamil_songs_free.pdf
    • https://uploads.strikinglycdn.com/files/92ae1c08-d0ca-4073-858d-8995459ff96c/52123845751.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_off00010368.bin
0b878e604efa8a0260d8dec594132f1b1d08fd500ed58a465d32d8c3fd4d698f
pdf-font-stream PDF embedded font (sfnt) at offset 0x10368 4304 bytes
font_01_sfnt_off00011227.bin
1764f46af2cf769cf6069618c82e5d14c023466199dbf16ad35cb96014840159
pdf-font-stream PDF embedded font (sfnt) at offset 0x11227 10416 bytes
font_02_sfnt_off00013595.bin
1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e
pdf-font-stream PDF embedded font (sfnt) at offset 0x13595 4324 bytes