Malicious PDF — malware analysis report

Static analysis result for SHA-256 662be59a724811ce…

MALICIOUS

PDF

65.5 KB Created: 2020-12-27 20:06:39 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-16
MD5: 8e4f0aefaa8c3f9df928081c26b5a358 SHA-1: e7223cab2f9a1fd99f148ace0431d014d5a9fec3 SHA-256: 662be59a724811ce3d4755dce87536ac21b02b43c5fb5aa135382a76c0dde6e0
96 Risk Score

Malware Insights

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

The file is identified as malicious by a ML classifier and ClamAV with a high confidence score. It contains an embedded URI pointing to 'https://traffset.ru/aws?utm_term=beetalk+apk+terbaru', which is likely part of a phishing or malware distribution scheme. The document body, though heavily obfuscated, suggests a lure related to 'Beetalk apk terbaru', further supporting a phishing or malicious download attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://traffset.ru/aws?utm_term=beetalk+apk+terbaru PDF link annotation
    • https://lazezareb.weebly.com/uploads/1/3/4/3/134311903/tibivi_wutupo.pdfIn PDF document text
    • https://cdn.sqhk.co/dipujabuxiw/Q8jfhad/51621126407.pdfIn PDF document text
    • https://cdn.sqhk.co/merodobiweve/RXu156y/mirror_glaze_cake_recipe_video.pdfIn PDF document text
    • https://gifetapajuloper.weebly.com/uploads/1/3/4/6/134682222/muvoj.pdfIn PDF document text
    • https://woviximanikiz.weebly.com/uploads/1/3/4/6/134693880/mafapusogosigapi.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/4326ef45-4a67-4abb-b888-037aab58284e/18150540583.pdfIn PDF document text
    • https://s3.amazonaws.com/legapatatezisa/tubukovedopexakewamixoruf.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/33d80c4b-f6bb-496c-a25b-04eae017673b/jawunaloruzoguxabawedov.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1dddcf7a-84df-408a-a881-c105bb5efdae/filepibovalufal.pdfIn PDF document text
    • https://s3.amazonaws.com/sebunuzu/jetusozadesirejolotisuv.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/968c4e85-1368-4c2d-a685-2edb1228df37/7949144801.pdfIn PDF document text
    • https://s3.amazonaws.com/susopuzupure/acrylamide_in_coffee.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c436.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC436 4888 bytes
SHA-256: e975b82baa98f31b0a1aab0c89688e371c464303fc07512d0ed551108cf873a4
font_01_sfnt_off0000d4e2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD4E2 10792 bytes
SHA-256: c5f48a377feefc8a80e7e6c995d68989ae2c473d71ce6a7eef31d552dfd50cb4