Malicious PDF — malware analysis report

Static analysis result for SHA-256 fae9f7d5a03a35ed…

MALICIOUS

PDF

78.4 KB Created: 2021-02-28 10:55:20 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 30beeee8ca279932a0456c3697f35043 SHA-1: 2bd686a993d982f2a0234f9c2c9b19f39042f64e SHA-256: fae9f7d5a03a35ed9046138c5fcb6fb322c0bb3fa0c4d81a2f8e26e77c0b63e0
96 Risk Score

Malware Insights

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

The file is identified 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 deliver a secondary payload or redirect the user to a phishing site. The document body, though heavily obfuscated, suggests a lure related to 'modal verbs list in english pdf'. No scripts were extracted, but the presence of external URIs and the ML detection strongly suggest malicious intent.

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://ponafet.ru/strik?utm_term=modal+verbs+list+in+english+pdf
    • https://cdn.sqhk.co/tovipovo/1hfthdF/piano_despacito_best_tiles_game_download.pdf
    • http://pugorot.mygamesonline.org/40469073517.pdf
    • https://cdn.sqhk.co/xivovido/ihHijqZ/fagimupubivisevomop.pdf
    • https://cdn-cms.f-static.net/uploads/4426063/normal_60375de46b483.pdf
    • http://pofuxubilet.sportsontheweb.net/how_to_play_walk_dont_run_on_the_guitar.pdf
    • http://zememor.sportsontheweb.net/dumedosawipovu.pdf
    • https://static.s123-cdn-static.com/uploads/4386335/normal_5fff198a39107.pdf
    • https://cdn.sqhk.co/gutifusuf/eggVXhd/bufelakosiri.pdf
    • http://pogawubujogeje.mypressonline.com/what_does_a_norm_mean_in_english.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/piwanisaj/86009971682.pdf
    • http://lebekuwawelu.epizy.com/dujawi.pdf
    • http://gozipoxux.rf.gd/huawei_android_phone_without_camera.pdf
    • http://xuvafinuvewabek.epizy.com/haunted_forest_destiny_2_2019_guide.pdf
    • http://mukadepokexow.epizy.com/ansible_template_full_path.pdf
    • http://lobopekogolo.onlinewebshop.net/line_6_pod_hd_400_power_supply.pdf
    • http://kowewewabozete.epizy.com/apprendre__bien_parler_franais.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e9e9.bin
40ce0bc9b113ef031639604f059b60aa9f1e41b097d60e75bfbf620cccc66306
pdf-font-stream PDF embedded font (sfnt) at offset 0xE9E9 2900 bytes
font_01_sfnt_off0000f42d.bin
4657775d1bb7210697011dd935d3e6e3e862db97648f788a9824e4f3b803a741
pdf-font-stream PDF embedded font (sfnt) at offset 0xF42D 5508 bytes
font_02_sfnt_off000106ee.bin
66b9798790180a6224fb63beb19b0f704b9ca24a267e854af846a2ed4e4a30c2
pdf-font-stream PDF embedded font (sfnt) at offset 0x106EE 10808 bytes