Malicious PDF — malware analysis report

Static analysis result for SHA-256 8e9f21cd3ef1affb…

MALICIOUS

PDF

61.4 KB Created: 2020-12-24 07:17:22 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-22
MD5: 1053d29ef0bee40475f9232ae48a63ff SHA-1: f0e8a47c034f48d45ffa43fdcbb8cdd5a9b8532f SHA-256: 8e9f21cd3ef1affbb4825a82ef5b8701bd8cef22d1ed85c748bc01b137ea1ec6
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 payload. It contains an embedded URL pointing to 'trafftec.ru', which is likely part of the phishing lure. Although no scripts were explicitly extracted, the PDF structure and embedded URI suggest an attempt to redirect the user to a malicious site, consistent with a phishing attack.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://trafftec.ru/aws?utm_term=crime+report+map+baltimore+md PDF link annotation
    • https://cdn.sqhk.co/duwewofowus/TiiblSj/download_transport_tycoon_lite_mod_apk.pdfIn PDF document text
    • https://cdn.sqhk.co/lasesekov/gd0nvtH/recarga_rapido_ff.pdfIn PDF document text
    • https://cdn.sqhk.co/mepetiruzi/gdmSZF6/37206737158.pdfIn PDF document text
    • https://cdn.sqhk.co/zijikunu/ar1Chd1/talking_tom_and_friends_movie_star_angelo.pdfIn PDF document text
    • https://cdn.sqhk.co/liwewajawab/2geWeww/vorokirupafop.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/mokixetat/osrs_bats_slayer_guide.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4607b130-c483-47cb-a37a-a8985bd1ef2d/xexagugefuvagojijovulow.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4a5ff4cc-2b10-45f5-9061-ec7865eef425/kugifugalina.pdfIn PDF document text
    • https://s3.amazonaws.com/miwolezedubujoz/2020_dod_cyber_awareness_challenge_training.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/03244cce-be1d-4354-870c-c06a008c6599/futetodekamedebifibeza.pdfIn PDF document text
    • https://s3.amazonaws.com/dozore/soul_train_awards_2015_performances.pdfIn PDF document text
    • https://s3.amazonaws.com/jaloto/83293838821.pdfIn PDF document text
    • https://s3.amazonaws.com/godoremitiwuja/fitted_bed_sheets_near_me.pdfIn PDF document text
    • https://s3.amazonaws.com/zafaronivaj/zusisifofit.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_off0000b55c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB55C 4972 bytes
SHA-256: 0f67385db0f1d710f1617160e43cc8bc221e2c4eaf7c3052cbf768dcad37645d
font_01_sfnt_off0000c61b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC61B 10708 bytes
SHA-256: 399ff4b7ff98ef0781ca6206cc0dbfd308b1ff4282783d02b20a9cc6136623e8