Malicious PDF — malware analysis report

Static analysis result for SHA-256 76f75f7db651526d…

MALICIOUS

PDF

85.7 KB Created: 2021-03-22 05:29:57 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-07
MD5: 5016aa4c73e60d84948d4962607bfe19 SHA-1: 1f6085f201024c100da9597d90e953c5b5aaae86 SHA-256: 76f75f7db651526db474601e5e8b22a6ea01034f87df0a9e7563aea1d2ac72b0
96 Risk Score

Malware Insights

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

The file is a PDF document flagged by ClamAV as a phishing trojan. It contains an embedded URL pointing to 'fokemale.ru', which is likely used to redirect the user to a malicious site. The ML classifier also strongly indicated maliciousness. No scripts were extracted, but the presence of the URL and the detection signature suggest a phishing or credential harvesting attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://fokemale.ru/123?utm_term=dungeon+world+barbarian+sheet PDF link annotation
    • https://cdn.sqhk.co/xaranoraf/caLiwSx/29280633477.pdfIn PDF document text
    • https://cdn.sqhk.co/xafiguzi/Y6ifjgB/gumowububerixanasinugef.pdfIn PDF document text
    • https://cdn.sqhk.co/kaxovugefulo/mOHXXBY/audio_recorder_android_tutorial.pdfIn PDF document text
    • https://cdn.sqhk.co/xokebuzizo/idSKxia/runinimuroponoridiro.pdfIn PDF document text
    • https://cdn.sqhk.co/xubenijevewe/cPheqig/heroes_charge_burning_phoenix_7.pdfIn PDF document text
    • https://cdn.sqhk.co/vekuperik/6FicijT/48775286721.pdfIn PDF document text
    • https://cdn.sqhk.co/remimidotomi/8JABzjh/hand_tossed_vs_stuffed_crust_at_pizza_hut.pdfIn PDF document text
    • https://cdn.sqhk.co/giganopof/hCjcYge/48122177577.pdfIn PDF document text
    • https://cdn.sqhk.co/goronikel/icklXjg/silap.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://uploads.strikinglycdn.com/files/bc8970a3-b0a1-4f21-abda-a49735458cc4/44184064232.pdfIn PDF document text
    • https://s3.amazonaws.com/zerejibixupav/lightroom_video_editing_free.pdfIn PDF document text
    • https://s3.amazonaws.com/fibesezati/how_to_keep_bluetooth_speaker_from_turning_off.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/929c9cc3-d00b-4d26-babb-d4591fcef19b/software_testing_course_free_online.pdfIn PDF document text
    • https://s3.amazonaws.com/teximikamukubo/37271712466.pdfIn PDF document text
    • https://s3.amazonaws.com/zuxime/minecraft_mac_os_10._6._8.pdfIn PDF document text
    • https://s3.amazonaws.com/juvosi/direct_and_inverse_relationships_worksheet.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e131de41-c647-4c63-9794-7c8502532949/blind_side_leigh_anne_tuohy_net_worth.pdfIn PDF document text
    • https://s3.amazonaws.com/mesixadelomomo/gosojokijimega.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0bf4c0e3-8222-4457-8684-a052abb1d9b4/56146735742.pdfIn PDF document text
    • https://s3.amazonaws.com/lodazojamuva/bilayer_formation_adsorption.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0001058c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1058C 5200 bytes
SHA-256: 4d45c9e23c4558963d9cce4b5d690f5b5f3117b0c659de6b7ba06254552ae98b
font_01_sfnt_off00011743.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11743 10560 bytes
SHA-256: ca6328bfdf6f1e6ec6e5aba7efa1a08f6f1d373c69e7e234538bbca0e99861dd
font_02_sfnt_off00013b78.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13B78 4324 bytes
SHA-256: 9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2

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