Malicious PDF — malware analysis report

Static analysis result for SHA-256 6a686335485731a7…

MALICIOUS

PDF

81.6 KB Created: 2021-01-10 04:08:12 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-15
MD5: 3c7c63118abb03d1bb9c0201d7878a6a SHA-1: e529499b4fc2191ee80d72b5f8250c9e31ee2770 SHA-256: 6a686335485731a7cb5a9386a78ccbcbe7c30358776338a3fb046672cc33bd82
96 Risk Score

Malware Insights

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

The PDF file was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains an embedded URI pointing to 'traffking.ru', which is likely a malicious domain used for phishing or malware distribution. The document body, though heavily obfuscated, appears to reference search terms, reinforcing the phishing lure.

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://traffking.ru/aws?utm_term=zelda+ocarina+of+time+ost PDF link annotation
    • https://site-1185731.mozfiles.com/files/1185731/wesugitimenexawow.pdfIn PDF document text
    • https://site-1167955.mozfiles.com/files/1167955/tiny_houses_for_sale_in_pa.pdfIn PDF document text
    • https://site-1168300.mozfiles.com/files/1168300/download_game_idle_tap_strongman_mod_apk.pdfIn PDF document text
    • https://site-1178429.mozfiles.com/files/1178429/rally_championship_1996_download_completo.pdfIn PDF document text
    • https://site-1176453.mozfiles.com/files/1176453/bottle_jump_3d_unblocked.pdfIn PDF document text
    • https://site-1084247.mozfiles.com/files/1084247/29770403146.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://s3.amazonaws.com/pogolo/930631869.pdfIn PDF document text
    • https://s3.amazonaws.com/wiwuxot/activity_sheet_letter_m.pdfIn PDF document text
    • https://s3.amazonaws.com/woxojuxafopuv/tamibupuko.pdfIn PDF document text
    • https://s3.amazonaws.com/bugutaj/el_cerebro_humano_y_sus_hemisferios.pdfIn PDF document text
    • https://s3.amazonaws.com/kisagoz/autocad_free_trial_2014.pdfIn PDF document text
    • https://s3.amazonaws.com/purawuma/87361565564.pdfIn PDF document text
    • https://s3.amazonaws.com/pukaridimupo/angry_birds_2_apk_chomikuj.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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e188.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE188 4912 bytes
SHA-256: e8d5ddac44caa612220b2f85bf62be584ad73985a8c9307ccbbd0403c3d42bb1
font_01_sfnt_off0000f217.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF217 10408 bytes
SHA-256: 7f4980bb9959ad70c2c7eab92e51a77402de76f0d4d7874d6aca40eaa53bc0b8
font_02_sfnt_off0001156e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1156E 16272 bytes
SHA-256: 2f0e709e22a1ac0ff2aecd4e97fc498c7e29a05d3cf422f7717742736a941205
font_03_sfnt_off00012b11.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12B11 4324 bytes
SHA-256: b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c

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