Malicious PDF — malware analysis report

Static analysis result for SHA-256 5a31d1c23c993708…

MALICIOUS

PDF

79.5 KB Created: 2021-03-16 22:05:11 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3b0f0049588d5880f1c00fdfe21e37d2 SHA-1: 94c6a68bb140bab7703fcfb22175e70ea0ca348d SHA-256: 5a31d1c23c9937083ef007fb4b85b313c616ba80765e074544ecbabfd242b61e
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 high likelihood of malicious intent. The embedded URL `https://nipisod.ru/wix?keyword=holy+family+festival+nutley+nj` suggests a phishing or redirection attempt, likely to deliver a second-stage payload or lead the user to a malicious site. While no scripts were explicitly extracted, the PDF structure and embedded URIs are consistent with common phishing lures.

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://nipisod.ru/wix?keyword=holy+family+festival+nutley+nj
    • http://fegivate.medianewsonline.com/mifevono.pdf
    • http://vusejulene.iblogger.org/beiimaan_love_movie_hd_filmywap.pdf
    • http://biomaniix.website/magic_chef_refrigerator_fan_not_workingsk1dq.pdf
    • https://porovepo.weebly.com/uploads/1/3/4/5/134527374/guvarinubutidunarisa.pdf
    • http://sefesipodaj.22web.org/poe_witch_leveling_guide_3._3.pdf
    • http://zotokolumo.iblogger.org/engineering_workshop_materials_list.pdf
    • http://presente-top.store/netgear_ac1600_r6250_manual786m4.pdf
    • http://meetsalle.xyz/madden_16_ps4_gameplayelgvb.pdf
    • http://health2health.online/clothing_donation_boxes_near_meil1x2.pdf
    • http://manovina.mypressonline.com/81421429397.pdf
    • https://tajerupabud.weebly.com/uploads/1/3/1/1/131164315/boxejaraxaf-legilogawet-xiwaritirutabop-xofizabafedav.pdf
    • http://topsalon.xyz/proshop_led_par_64_manualr6nq7.pdf
    • https://sawagifavemon.weebly.com/uploads/1/3/0/7/130775832/pamimokebi.pdf
    • http://profaudit32.ru/21364751094vgdq9.pdf
    • http://present-mag.ru/sewubifibanefs65km.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • http://sozazavore.rf.gd/friday_night_lights_book_characters_where_are_they_now.pdf
    • http://sivopumifivak.epizy.com/kung_fury_not_on_netflix.pdf
    • http://lesizuli.epizy.com/download_sound_drivers_for_windows_10_acer.pdf
    • http://suzufesa.epizy.com/wireless_charging_pads_for_android_phones.pdf
    • http://bologipegokofi.epizy.com/wekuzaxabikatakuzovarigob.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_off0000e877.bin
92f8e67f36a299cb896bf7c76b03f854b6f3890d1aeeb4a2b8935f67dee93c77
pdf-font-stream PDF embedded font (sfnt) at offset 0xE877 4896 bytes
font_01_sfnt_off0000f91e.bin
907ade1162a29a8554934ba7ce5be85cf37c1a4073feb1bb7d916fb620d1141e
pdf-font-stream PDF embedded font (sfnt) at offset 0xF91E 12472 bytes
font_02_sfnt_off000122c3.bin
7f6049e5011acf0e8581793f2bc2bb947aac2929fdb77abc318b2a6155c1ef71
pdf-font-stream PDF embedded font (sfnt) at offset 0x122C3 4324 bytes