Malicious PDF — malware analysis report

Static analysis result for SHA-256 d0e4e748fb6dae60…

MALICIOUS

PDF

70.3 KB Created: 2021-02-24 10:38:19 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 60ee851bf3fbd99d6807eccd0365e4bb SHA-1: 2e4c67b49224c1920ce2d81cac367ad2af73cea9 SHA-256: d0e4e748fb6dae60693c66f0248b9c6f098e32b382964bf7c92a9bbf43912504
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. It contains an embedded URI pointing to 'jacksth.ru', which is likely part of a phishing or malware distribution scheme. The document body, though heavily obfuscated, suggests a lure related to 'tanking guide ffxiv', aiming to trick users into clicking the malicious link. No scripts were extracted, but the presence of embedded URLs and the strong heuristic detections point towards a phishing or downloader attack pattern.

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://jacksth.ru/wix?keyword=tanking+guide+ffxiv
    • https://nedugapepo.weebly.com/uploads/1/3/4/2/134265444/33c3eccb.pdf
    • https://cdn.sqhk.co/fapetemiji/gigVicp/naughty_boy_pentagon_meaning.pdf
    • https://cdn.sqhk.co/wexifidobafo/hagjhek/allegiant_air_phone_number.pdf
    • https://static.s123-cdn-static.com/uploads/4469617/normal_5fec0f2ebeff6.pdf
    • https://cdn.sqhk.co/simikitivo/jghzaGa/kusubikamozowo.pdf
    • https://pobunusegem.weebly.com/uploads/1/3/4/4/134460984/niruvanemavi_xoresex_dixivajudom_vugewamezepemiv.pdf
    • https://cdn-cms.f-static.net/uploads/4404503/normal_6025b500f2044.pdf
    • https://jifofavara.weebly.com/uploads/1/3/4/6/134631997/minij.pdf
    • http://brightshopbg.xyz/honda_hs928_snowblower_shear_pinsrrrbz.pdf
    • https://static.s123-cdn-static.com/uploads/4403407/normal_6007c203dab50.pdf
    • http://lnstagramverifiedbadge-media.com/walmart_pharmacy_hours_omaha_nemimi7.pdf
    • https://cdn.sqhk.co/womawuxinuge/jgiexBe/hong_kong_polytechnic_university_admission_deadline.pdf
    • http://lodixewovufosa.iblogger.org/hamlet_act_2_discussion_questions_answers.pdf
    • https://panebafizi.weebly.com/uploads/1/3/4/3/134365464/5926110.pdf
    • http://tufataf.22web.org/gun_strike_blood_killer_game_apk.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://zijipowatik.epizy.com/nuforiwi.pdf
    • http://juvemekexiki.rf.gd/unity_old_english_definition.pdf
    • http://zenutetuzobo.epizy.com/23199016354.pdf
    • http://rutipozi.epizy.com/44862394244.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_off0000d773.bin
81ca6b24bc06aad256bfb308d5318b685481a8f609f2e74b3f5c81476701dfc5
pdf-font-stream PDF embedded font (sfnt) at offset 0xD773 4908 bytes
font_01_sfnt_off0000e84e.bin
bbf31356aadd0ee4c7c7722422b9b4464eb501db8acef385125d36ef631590d4
pdf-font-stream PDF embedded font (sfnt) at offset 0xE84E 10596 bytes