Malicious PDF — malware analysis report

Static analysis result for SHA-256 7f008f4bc6f21b07…

MALICIOUS

PDF

70.9 KB Created: 2021-04-04 10:57:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: b4550f822e107f73bb27f483e811b98d SHA-1: 7f54e44d0952e1a423bee77f46f4ba14c39e6802 SHA-256: 7f008f4bc6f21b07a5313ed8e2b93a4e25650f8108ce8b2f1a784c62305a6aa6
116 Risk Score

Malware Insights

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

The file is a PDF document detected as malicious by ML classifiers and ClamAV, specifically flagged as Pdf.Phishing.Trojan. It contains an embedded URI pointing to a suspicious domain, and multiple other URLs that could serve as download locations for further payloads. The presence of a QR code lure suggests a phishing attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • QR-code redirect lure medium SE_QR_LURE
    Document instructs the user to scan a QR code with a phone — consistent with QR phishing, but also common in legitimate documents
  • 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://jottigo.ru/123?utm_term=daily+guideposts+40+devotions+for+lent
    • https://cdn.sqhk.co/dimumaneda/dhijhdt/baviduwozufafuwisew.pdf
    • https://cdn.sqhk.co/notizejamebo/jEihvgj/47809380493.pdf
    • https://static.s123-cdn-static.com/uploads/4376382/normal_5ffcfbef1e0d0.pdf
    • https://cdn.sqhk.co/vamunidibu/hghbNOf/65499646608.pdf
    • http://pakekoramiduwin.getenjoyment.net/adobe_indesign_cc_classroom_in_a_book_free_download.pdf
    • https://static.s123-cdn-static.com/uploads/4450889/normal_5fefdd3c95e67.pdf
    • https://cdn.sqhk.co/bofotabi/hffiheC/coliformes_definicion_quimica.pdf
    • https://cdn-cms.f-static.net/uploads/4487663/normal_5fd27b518409b.pdf
    • https://cdn.sqhk.co/poladejug/cjgibIj/koaa_train_live_location.pdf
    • http://ramuwesitavoz.mywebcommunity.org/why_cant_i_share_public_post_on_facebook.pdf
    • https://cdn.sqhk.co/birenejar/jtNdRhg/83572951827.pdf
    • https://cdn.sqhk.co/kowalaxu/XggDBjc/disney_plus_free_trial_verizon.pdf
    • https://cdn.sqhk.co/kufalavoxig/ibjixih/dizoxuleveregire.pdf
    • https://cdn.sqhk.co/kamugututu/eidvjQe/billie_eilish_age_ocean_eyes.pdf
    • https://cdn.sqhk.co/ludozenidi/gd0PJjZ/zagilegijekojatoz.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/gurowozenupifi/xerepebadogeduvo.pdf
    • https://s3.amazonaws.com/bejideba/zatufejij.pdf
    • https://s3.amazonaws.com/fexuror/wogewusujezososuje.pdf
    • http://dafuwinev.myartsonline.com/4025864752.pdf
    • https://s3.amazonaws.com/lovomijelun/java_swing_button_text_color.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_off0000d66a.bin
eb0d6496336e52107c25036c9c2f25ab82c7709ba10ab0ed19859885606a6d6e
pdf-font-stream PDF embedded font (sfnt) at offset 0xD66A 5600 bytes
font_01_sfnt_off0000e9a9.bin
05e16621c3f5bead309200ec3f8d5393b3d0d63460042ff2a60482ab293df2be
pdf-font-stream PDF embedded font (sfnt) at offset 0xE9A9 10692 bytes