Malicious PDF — malware analysis report

Static analysis result for SHA-256 68584c9c6826063b…

MALICIOUS

PDF

99.1 KB Created: 2021-03-23 18:43:08 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: e251775d2707bb13ae9a5214a28c82eb SHA-1: 7117fd2950a4a2dc80d0ad958542b68cf80498dc SHA-256: 68584c9c6826063b1a4da71c6cf6c9cbffa3cdc3e06ede313bb3930466353ba7
136 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution T1059.007 JavaScript

The PDF file was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. Heuristics indicate it uses a remote-support tool lure, a common tactic for social engineering. Although no scripts were directly extracted, the presence of embedded URLs suggests the document is designed to lead the user to malicious content or downloads, potentially for initial access or further payload delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9981

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • Remote-support tool lure high SE_REMOTE_SUPPORT_LURE
    Document instructs the user to install, open, or connect with a remote-support tool such as AnyDesk, TeamViewer, Quick Assist, or ScreenConnect — high-risk in an unsolicited document
  • 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://botokaw.ru/123?utm_term=comcast+tv+guide+york+pa
    • https://cdn.sqhk.co/kululojilo/cIgf0ha/racing_car_games_free_download_pc_3d.pdf
    • https://cdn.sqhk.co/xelalizogim/dhbjhFO/funny_pics_memes.pdf
    • https://cdn.sqhk.co/pufuxogife/iibiawF/77586653292.pdf
    • https://cdn.sqhk.co/livulopo/fKM0EwB/xefodoxomawesokozime.pdf
    • https://cdn.sqhk.co/posojuvapono/kaDgiQc/galamobamulisuge.pdf
    • http://gtomishebs.xyz/wafudiforik1wei.pdf
    • https://cdn.sqhk.co/boxepupovemu/Hibjehj/9181438216.pdf
    • https://cdn.sqhk.co/bulegumu/Gif1ukM/majoritarian_politics_definition_government.pdf
    • https://cdn.sqhk.co/felodunom/ahagcjb/teamviewer_12_free_windows_7.pdf
    • https://cdn.sqhk.co/forokuxodel/cgAghid/english_audio_songs_with_lyrics_free_download.pdf
    • https://cdn.sqhk.co/bilanogakiw/hihgfMj/62878687975.pdf
    • https://cdn.sqhk.co/suxumeva/h9ezShj/murder_hornet_caught_in_washington_state.pdf
    • https://cdn.sqhk.co/tuseliwi/RjxhEja/minecraft_pixelspark_servers.pdf
    • https://cdn.sqhk.co/lufezeralon/0giojdO/capitalism_sentence_definition.pdf
    • https://cdn.sqhk.co/ruxuvedije/hbmgcTS/anime_avatar_creator_3d.pdf
    • http://kprovk.xyz/xofavosofepajojanutemzsxu.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://uploads.strikinglycdn.com/files/ea9d866b-1c1c-4283-a29c-78d30e130378/why_is_my_garbage_disposal_leaking_from_the_reset_button.pdf
    • https://uploads.strikinglycdn.com/files/23f7b1d8-3742-4966-b328-87eaee4e1714/63454192611.pdf
    • https://uploads.strikinglycdn.com/files/ea555314-0fcc-4106-903c-e1a222298e1a/4932191565.pdf
    • https://s3.amazonaws.com/wemazun/72788845603.pdf
    • https://uploads.strikinglycdn.com/files/bf014433-7252-4ab0-b03e-9b4da240a47f/dalex.pdf
    • https://uploads.strikinglycdn.com/files/15ead763-d1cc-4948-99b5-31c80d7dbbc5/xomidadawulupofom.pdf
    • https://s3.amazonaws.com/gelawiweza/author_s_purpose_activity_3_answers.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00011ca7.bin
6fe6ebf06cdbbbb623b98996c1afaeeebd5226c970b287cbf109648fd2d8140d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x11CA7 4056 bytes
font_01_sfnt_off00012ae4.bin
e2c499e90aafd44b413018129e1393aadbb48cafee0abcb708815fe8bdca4f08		 pdf-font-stream PDF embedded font (sfnt) at offset 0x12AE4 5492 bytes
font_02_sfnt_off00013d83.bin
d86ad816389dc009783ea799a81837df4a8a2d0b1f9fa9ac286cd2913635d9e4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x13D83 6336 bytes
font_03_sfnt_off00015299.bin
19c7f8e9e96ea2c5b27f638bbd6ea52f736c108d192d5bfb20fc72b75073b834		 pdf-font-stream PDF embedded font (sfnt) at offset 0x15299 13856 bytes

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