Malicious PDF — malware analysis report

Static analysis result for SHA-256 f80d89a56c0620a4…

MALICIOUS

PDF

75.9 KB Created: 2021-02-09 07:03:53 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-23
MD5: 01f37cecc2f7dca73ee0ad31e4bd2f55 SHA-1: 5c89e3c3d88da5274685c379857dcbec9ffff0af SHA-256: f80d89a56c0620a40919242422d2ef8f8c3b24a3568c403fec7cca04cf8e4be9
156 Risk Score

Malware Insights

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

This PDF was identified as malicious by ClamAV and an ML classifier, exhibiting characteristics of a link farm with numerous external PDF links. The primary external URL, https://baarspo.ru/aws?utm_term=jackal+hunting+sounds+free, suggests a potential phishing or SEO manipulation lure. While no scripts were explicitly extracted, the PDF structure and the presence of external links indicate a likely attempt to direct users to malicious or deceptive content, possibly for phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

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
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://baarspo.ru/aws?utm_term=jackal+hunting+sounds+free PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4490364/normal_5ff490fc75e36.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4444852/normal_5fec42c4842d8.pdfIn PDF document text
    • https://cdn.sqhk.co/lolajelor/tmha5J3/master_builder_for_minecraft_pe_apk.pdfIn PDF document text
    • https://cdn.sqhk.co/juputufom/i2Ljap7/monster_truck_police_car_games.pdfIn PDF document text
    • https://cdn.sqhk.co/jemitaso/8cjeXhe/sajixa.pdfIn PDF document text
    • https://cdn.sqhk.co/gubogezemazo/ujieicx/xonopu.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4381730/normal_5fff062f7b36e.pdfIn PDF document text
    • https://cdn.sqhk.co/kegufamop/cjgihpf/lost_island_blast_mod_apk_download.pdfIn PDF document text
    • https://cdn.sqhk.co/zovitamojim/j2ggdjj/18672273928.pdfIn PDF document text
    • https://bikezurikol.weebly.com/uploads/1/3/4/6/134612173/2864681.pdfIn PDF document text
    • https://cdn.sqhk.co/tamoravuwera/ja3FD2I/word_connect_word_games_apk.pdfIn PDF document text
    • https://jazawimap.weebly.com/uploads/1/3/5/3/135346256/b24928d06408994.pdfIn PDF document text
    • https://cdn.sqhk.co/gudijupimeb/dgihDjd/scoreboard_basketball_online.pdfIn PDF document text
    • https://cdn.sqhk.co/masamiwe/009ZggZ/qs_world_university_rankings_mba.pdfIn PDF document text
    • https://cdn.sqhk.co/gadewekunel/hfOwihM/10299549147.pdfIn PDF document text
    • https://cdn.sqhk.co/wogokodu/ihjbu6C/24424143269.pdfIn PDF document text
    • https://cdn.sqhk.co/bujedebi/fhiyWez/31934563154.pdfIn PDF document text
    • https://cdn.sqhk.co/jefapukawore/hgjc1jj/9199127426.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/paxunu/rowawafi.pdfIn PDF document text
    • https://s3.amazonaws.com/tutasujal/22266583542.pdfIn PDF document text
    • https://s3.amazonaws.com/vavale/state_of_contaminated_land_report.pdfIn PDF document text
    • https://s3.amazonaws.com/mesixadelomomo/florida_driving_test_questions_and_answers_free.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d302.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD302 5336 bytes
SHA-256: e4c20bca951a3af30886b0cab713726375fa65e0b53856a371096aab57173a7c
font_01_sfnt_off0000e524.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE524 11256 bytes
SHA-256: 37adde03dfca916b492627855cef11bbef4e517abdf6f05438e7c36da3ecde17
font_02_sfnt_off00010ba1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10BA1 16092 bytes
SHA-256: 39b2f4b99ee08965fd4836f89f628a00cde8346cb181131bba0308e80db8fb67

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