Malicious PDF — malware analysis report

Static analysis result for SHA-256 f89e7122bd4a03f5…

MALICIOUS

PDF

75.5 KB Created: 2021-03-09 09:21:58 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 92028b3c421dc2e5a29e15e983bb64be SHA-1: 79a7db3af1b1f8a4c5114f91228296b30728a37c SHA-256: f89e7122bd4a03f5a2b45379797bf9cb5576e47e915044d7a80e0d6f03d62a59
96 Risk Score

Malware Insights

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

The PDF file was flagged by multiple heuristics, including a critical ClamAV detection and an ML classifier, indicating malicious content. It contains an external URI pointing to a suspicious domain, likely intended to redirect the user to a phishing or malware distribution site. The document body, though heavily obfuscated, appears to be a lure related to a common search query, suggesting a phishing or social engineering attack.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://jumiwimov.ru/strik?utm_term=what+does+e3+mean+on+washing+machine
    • http://kopogaxepaku.sportsontheweb.net/motorola_verve_buds_110_instructions.pdf
    • http://filfex.ru/football_manager_touch_2017_apk_freeof3wq.pdf
    • http://ionatr.space/fender_passport_pd-250_pricev5wyu.pdf
    • http://realwockyc.info/21084561882bfwp2.pdf
    • http://bio-ita.fun/68859357418zgzkc.pdf
    • http://vevufilusik.scienceontheweb.net/thinking_in_java_4th_edition_solutions.pdf
    • http://parubexe.iblogger.org/80454930389.pdf
    • http://help-bluebadgecustomer.com/61455134339kb1vk.pdf
    • http://legko.travel/advanced_origami_book_downloadza962.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://fuvarijes.atwebpages.com/gilekijipanikukitaj.pdf
    • https://uploads.strikinglycdn.com/files/19afd0ab-d8a6-4b1f-8689-da1e24f7051e/308005506.pdf
    • http://zogoxuf.atwebpages.com/walmart_tv_trays_set_of_4.pdf
    • http://fawujuvuz.epizy.com/2001_polaris_sportsman_400_carburetor_adjustment.pdf
    • http://bodegifu.atwebpages.com/74317973913.pdf
    • http://jefebewo.epizy.com/chiari_malformation_basion_opisthion.pdf
    • https://uploads.strikinglycdn.com/files/7a3ae8d1-3857-43ee-b686-bbdf50a531e2/what_does_it_mean_when_smoke_detector_flashes_red.pdf
    • https://uploads.strikinglycdn.com/files/5c0cb772-b06d-4e56-91d7-2e63c219d1eb/gazusozekitimoz.pdf
    • https://uploads.strikinglycdn.com/files/87e84fb1-94db-4e8f-b996-26f141314d00/resnick_halliday_krane_physics_volume_2.pdf
    • http://mujigivufutufu.rf.gd/cover_letter_template_mac_pages.pdf
    • http://fukutinupamebo.rf.gd/gasubajamazokawo.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_off0000e8f1.bin
c6873d974f5feff200113691d33e283ccaf20ac54afcf9b67905d95705602799
pdf-font-stream PDF embedded font (sfnt) at offset 0xE8F1 5492 bytes
font_01_sfnt_off0000fb9d.bin
e5020526d614d7c501d731c4ff3218d715e869673db2a3455b63c4267f28dc31
pdf-font-stream PDF embedded font (sfnt) at offset 0xFB9D 10908 bytes