Malicious PDF — malware analysis report

Static analysis result for SHA-256 58dce7594e97912a…

MALICIOUS

PDF

112.1 KB Created: 2021-04-02 14:20:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: ffdbabf455404f8d0062bdab07c03596 SHA-1: 75e2c7a1487812ed691f4f9f6edc616ed1fcfd18 SHA-256: 58dce7594e97912a0a9665b03867aa63053ad79330111a4868a96585acfb7581
96 Risk Score

Malware Insights

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

The PDF file contains heuristics indicating external URI usage and is flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. The embedded document body, though heavily obfuscated, contains text related to "Amazon prime video apk android 5", suggesting a lure to download or access potentially unwanted software. The presence of multiple suspicious URLs further supports a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9977

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://jumiwimov.ru/wix?keyword=amazon+prime+video+apk+android+5
    • http://all-system7.xyz/nopaniq14tv.pdf
    • https://static.s123-cdn-static.com/uploads/4371799/normal_5fe01d33d6b2e.pdf
    • http://auto-fishing-rods1.club/partition_bohemian_rhapsody_piano_gratuitgs4uj.pdf
    • http://springwin.space/dofujojg9k3d.pdf
    • http://motorutovibipe.sportsontheweb.net/apush_review_packet.pdf
    • http://whalesqpa.fun/logitech_f710_gaming_software_downloadcjxhs.pdf
    • https://static.s123-cdn-static.com/uploads/4385437/normal_60062361ef618.pdf
    • https://cdn-cms.f-static.net/uploads/4405929/normal_60483229b6287.pdf
    • http://nigasheff.xyz/betrayal_song_filipino3obr9.pdf
    • http://enots.space/gotivalolenetazur9kgyv.pdf
    • http://suraneb.scienceontheweb.net/83082191454.pdf
    • https://cdn-cms.f-static.net/uploads/4417659/normal_600e52528da07.pdf
    • http://nubolutlion.xyz/fybcom_banking_and_finance_notesqtz6f.pdf
    • http://odemebayisitrafik.com/93404861452jfv4k.pdf
    • http://zonokiwuwagupu.getenjoyment.net/gimagubuta.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • https://8994dc82-3839-475c-8de5-8afaa5c13229.filesusr.com/ugd/798b5e_6ed927f459a248738cb939f03b3a5b19.pdf?index=true
    • https://63c5840e-267c-49ed-94d3-fc9f9d8b9c0b.filesusr.com/ugd/8c5bc8_9596ebcfb9d0475eaf67396a6e2cd4c4.pdf?index=true
    • https://s3.amazonaws.com/metubevozisul/31763873195.pdf
    • https://s3.amazonaws.com/fosalizuzu/linux_ubuntu_commands_cheat_sheet.pdf
    • https://67dc9804-4028-4298-afd7-d431d2c16fe6.filesusr.com/ugd/559c84_a1eed13afe6648d7919a0bb1890a975d.pdf?index=true
    • https://3e1d1bad-f645-4ebd-ac75-469e7ff7c972.filesusr.com/ugd/e745be_2f9e4e428cbf40869e309010e276025d.pdf?index=true
    • https://s3.amazonaws.com/nowokil/how_to_draw_a_male_body_step_by_step_for_beginners.pdf
    • https://s3.amazonaws.com/vikukinumet/61302923115.pdf
    • https://s3.amazonaws.com/temujonuwu/bharat_filmywap_movie.pdf
    • https://9fbaa0db-fe9e-443e-b503-3d02ea494c21.filesusr.com/ugd/d417e9_9043d1d49442487090d274e6d7d51dc2.pdf?index=true
    • 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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000dd70.bin
9851240eca0e3c64da1ffdbfadc464b23a2335e1c439cc0675af190e0349ba4c		 pdf-font-stream PDF embedded font (sfnt) at offset 0xDD70 47496 bytes
font_01_sfnt_off00016e43.bin
4f35733ea3bd0eef258336974699040cde1c75ea40eb1a324c9e31ae041d0177		 pdf-font-stream PDF embedded font (sfnt) at offset 0x16E43 4892 bytes
font_02_sfnt_off00017eca.bin
22927557ba2fe16c7f596e38bf5ce6380166ad1ab6ccb8e2ff9f7a129c059d9b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x17ECA 11240 bytes
font_03_sfnt_off0001a461.bin
a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1A461 4324 bytes

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