Malicious PDF — malware analysis report

Static analysis result for SHA-256 178e77fe0c39760d…

MALICIOUS

PDF

85.4 KB Created: 2021-04-02 18:52:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7696b75f329b95b90616e10040c1a198 SHA-1: 76dbf2b877c26f6b3b3319bedd8ffbb15fbb1756 SHA-256: 178e77fe0c39760d3425abee6c7308c6ee8e652b6d8395fa19458ef8f89abd55
96 Risk Score

Malware Insights

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

The file is identified as malicious by ML classifiers and ClamAV, with a high risk score. It contains an embedded URI pointing to a suspicious domain, suggesting a phishing or malware distribution attempt. Although no scripts were explicitly extracted, the PDF structure and embedded URI indicate a malicious intent to redirect the user to a potentially harmful external resource.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9992

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://jacksth.ru/strik?utm_term=exerc%25C3%25ADcios+diagrama+de+fases+da+%25C3%25A1gua
    • http://samotimijo.22web.org/tonemu.pdf
    • https://cdn.sqhk.co/kapimetavis/hchchSy/chasebaits_smash_squid.pdf
    • https://cdn.sqhk.co/konidadelan/gciahbe/90s_hit_songs_list_bollywood.pdf
    • https://cdn.sqhk.co/natefisaka/jdjdMp8/chemistry_questions_and_answers_2018.pdf
    • https://cdn.sqhk.co/purovufizu/RBex9BM/95499811368.pdf
    • https://cdn.sqhk.co/jifigetuxu/hhbha2q/brothers_a_tale_of_two_sons_steam_achievements.pdf
    • https://cdn.sqhk.co/vibisidumes/ghhcmxf/59813202972.pdf
    • http://sufawevugut.mywebcommunity.org/92808548119.pdf
    • https://cdn.sqhk.co/dinigivo/mierkhi/tiwefaloruxogavozujog.pdf
    • https://cdn.sqhk.co/muvotugi/0WgeNCH/live_streaming_telugu_news_channels.pdf
    • https://cdn.sqhk.co/kotolodegag/pzhjDdA/bach_bwv_974.pdf
    • https://cdn.sqhk.co/lemijexo/7EPIXja/advance_wars_emulator_android.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • http://rodedewezijore.atwebpages.com/brother_hl_l2360dw_toner.pdf
    • https://s3.amazonaws.com/ronatiduzoxij/65382802586.pdf
    • http://moxadokikubod.onlinewebshop.net/dokojumijax.pdf
    • http://sivojosifa.epizy.com/26420418376.pdf
    • http://gonegexunu.myartsonline.com/24723591826.pdf
    • https://s3.amazonaws.com/gusule/11685714357.pdf
    • https://s3.amazonaws.com/bodajaku/xiaomi_mi_cc_9_android_one.pdf
    • http://vofazos.epizy.com/p90x_weight_loss_reddit.pdf
    • http://nemenarubaz.atwebpages.com/brown_eyed_girl_guitar_sheet_music.pdf
    • http://fovelemuzawela.epizy.com/chronic_and_aggressive_periodontitis.pdf
    • https://s3.amazonaws.com/lowebemuwojiso/latest_south_african_constitution.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_off0000fd5c.bin
a9703ec8ac018993c37019c5ce13dea409450a8cd66a728c04962fca53be1445		 pdf-font-stream PDF embedded font (sfnt) at offset 0xFD5C 5320 bytes
font_01_sfnt_off00010ee3.bin
c09fc2aedc6aa5397ce6898ae2e1cb6666b3da92b1a1afbfe1de31dce8c2ce7f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10EE3 13432 bytes
font_02_sfnt_off00013779.bin
a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x13779 4324 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.