Malicious PDF — malware analysis report

Static analysis result for SHA-256 c57fe85215febe00…

MALICIOUS

PDF

78.6 KB Created: 2021-05-15 08:32:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 77b5571c521cfec90dd32e45363150e9 SHA-1: 7ec5bd0250aa306610e54f179c79dbd3b72d291a SHA-256: c57fe85215febe00a82fb61ccca9762ca3b859ef88543a4fcfae20422f2ed09d
96 Risk Score

Malware Insights

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

The PDF file was detected as malicious by ML classifiers and ClamAV, indicating a phishing or trojan threat. It contains an embedded URI pointing to a suspicious domain, likely intended to host malicious content or redirect the user. The document body, though heavily obfuscated, suggests a lure related to Garmin GPS devices, aiming to trick users into clicking the malicious link.

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/strik?utm_term=garmin+gpsmap+64s+vs+64sx
    • https://cdn.sqhk.co/besogevipadi/hefjcw9/5018558307.pdf
    • https://cdn.sqhk.co/feguzuvubut/5heVGig/smash_hit_mod_apk_for_android.pdf
    • http://sibiwuketilivi.22web.org/magekusoduxubufid.pdf
    • http://kokawerawofovi.iblogger.org/bexojafaladarazox.pdf
    • https://cdn.sqhk.co/jisaside/SjaGXhc/mebugaronulufeba.pdf
    • http://kozlo.space/carya_cordiformis_seedcl7n8.pdf
    • https://cdn.sqhk.co/tafolaku/gjgeV77/tazolulinaxiwewela.pdf
    • http://kneeksi.ru/fetegeguveodcif.pdf
    • http://mexicotop.xyz/zosabebufomijijexvh98p.pdf
    • http://am-sound.ru/jalibumuwewi0a4d4.pdf
    • http://jakazobik.iblogger.org/gibopitigokegakuvaxasib.pdf
    • https://cdn.sqhk.co/sewetotab/Ageghie/get_followers_and_like_simulator_clicker_game.pdf
    • http://tokio-2020.fun/wosomop93f81.pdf
    • http://parkji5x.xyz/killing_joke_joker_monologue2vytr.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://d5e9a058-cbdc-4968-ba72-30cdbf1e36a3.filesusr.com/ugd/9cfd0a_53db7229c8c6417d8b584fa47907d03f.pdf?index=true
    • https://cdb53ace-3f3f-41e1-823e-0ecf3add8ba2.filesusr.com/ugd/47e9e0_8e07255546d34a40ae309911d732fbf4.pdf?index=true
    • http://xetubuvij.rf.gd/bls_2020_manual.pdf
    • https://711920be-b761-4f0e-a604-762b26663b16.filesusr.com/ugd/ffcbea_90002f07713442ad9bb0b70bf5a2086f.pdf?index=true
    • http://rereroma.epizy.com/asana_pranayama_mudra_bandha_download.pdf
    • http://gagonunanu.epizy.com/haskell_stack_template.pdf
    • http://tezebidurob.epizy.com/html_and_css_tutorial_4_review_assignment.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e727.bin
9263833c57860966fa0009614a37299170912045a2f9fc76214db1acf2b4e225
pdf-font-stream PDF embedded font (sfnt) at offset 0xE727 5508 bytes
font_01_sfnt_off0000f9e2.bin
91b1b7ab6eef5a65efcba258de9c241f36a58f712f273785f98024ab4d4c5c80
pdf-font-stream PDF embedded font (sfnt) at offset 0xF9E2 23060 bytes