Malicious PDF — malware analysis report

Static analysis result for SHA-256 fc65ddc9b0f03812…

MALICIOUS

PDF

77.9 KB Created: 2021-03-09 19:39:28 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: f99b077168b61b9570abfedf13cf72ef SHA-1: 857e6f04c5ff7bce856bef7bea967c9f54a27e53 SHA-256: fc65ddc9b0f0381218b8bf3d40edc59002e25134ee23655039a786f234204898
96 Risk Score

Malware Insights

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

The PDF document contains an embedded URI pointing to a suspicious domain, identified by heuristics and a machine learning classifier as malicious. The ClamAV detection further confirms its malicious nature, flagging it as a phishing trojan. While no scripts were explicitly extracted, the presence of embedded URLs and the overall detection profile suggest an attempt to redirect users to malicious content, likely for phishing or malware delivery.

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://lozipotod.ru/aws?utm_term=what+is+a+sweet+wine+for+beginners
    • http://kinemulawaw.sportsontheweb.net/zowon.pdf
    • https://cdn.sqhk.co/wobuwozavenu/WwQqigg/highway_395_spokane.pdf
    • https://static.s123-cdn-static.com/uploads/4488141/normal_5fe0fcf56aee4.pdf
    • https://cdn-cms.f-static.net/uploads/4501361/normal_5fe900328f81a.pdf
    • https://cdn.sqhk.co/revowemerem/hj8gcmV/fugiteruxodi.pdf
    • https://cdn.sqhk.co/tevosudav/bieWhf7/french_nail_art_designs_with_rhinestones.pdf
    • https://static.s123-cdn-static.com/uploads/4386079/normal_5fe295109961c.pdf
    • https://cdn-cms.f-static.net/uploads/4387408/normal_60139adaba8d0.pdf
    • http://xipodijajul.sportsontheweb.net/dapple_gray_horse_for_sale_in_texas.pdf
    • http://bagerisevi.scienceontheweb.net/gotuderawase.pdf
    • https://static.s123-cdn-static.com/uploads/4493227/normal_5ff2fc233c4b7.pdf
    • http://govugododuwo.iblogger.org/how_to_heal_a_popped_pimple_scab_overnight.pdf
    • https://cdn.sqhk.co/jivonaxadu/aigiggj/71767115566.pdf
    • http://tixesikixux.mygamesonline.org/pewudojiraxilidubupaxeni.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • http://belibivizonojo.myartsonline.com/boss_micro_br.pdf
    • https://s3.amazonaws.com/wurivuve/tupodif.pdf
    • http://kenukune.rf.gd/felixe.pdf
    • https://s3.amazonaws.com/lukepepe/bulave_aaj_yaari_teri_galiyan_ringtone.pdf
    • https://s3.amazonaws.com/dumupa/wokeselusawa.pdf
    • http://zotubune.myartsonline.com/wanakujovusop.pdf
    • https://s3.amazonaws.com/gewisetug/tvsn_tv_guide_sunday.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_off0000e62c.bin
6276ea7e71b7fce20a65f30f8b9a5f1afe8fb9fc38f254cf856e784e35b79a90
pdf-font-stream PDF embedded font (sfnt) at offset 0xE62C 5032 bytes
font_01_sfnt_off0000f752.bin
ad489ccf8d82174aedf2df97469cd17dbd7f19f5dc857b7e93c4d79b28fe1428
pdf-font-stream PDF embedded font (sfnt) at offset 0xF752 10320 bytes
font_02_sfnt_off00011aba.bin
0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333
pdf-font-stream PDF embedded font (sfnt) at offset 0x11ABA 4324 bytes