Malicious PDF — malware analysis report

Static analysis result for SHA-256 fabc5e668f46f7ed…

MALICIOUS

PDF

66.2 KB Created: 2021-03-08 08:52:02 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-13
MD5: 64444b466ca90598589dda1c8c198bf0 SHA-1: 71c5e8ce3ca8a3a1f33e9b179271e30443648986 SHA-256: fabc5e668f46f7edb168f2602c3e736c40ab9059342e70787407dcf04082430f
126 Risk Score

Malware Insights

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

The PDF contains numerous embedded URLs, many pointing to disposable hosting, and is flagged by ClamAV as a phishing trojan. The document body, though heavily obfuscated, suggests a lure related to 'mods para minecraft pe android apk'. The presence of external URIs and the ML classifier's high confidence indicate a malicious intent to redirect users to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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=mods+para+minecraft+pe+android+apk PDF link annotation
    • https://xowuxuwakewobi.weebly.com/uploads/1/3/4/8/134853014/ca0612a.pdfIn PDF document text
    • https://cdn.sqhk.co/nepajenine/ijiGvEw/2599310083.pdfIn PDF document text
    • https://gusefokujugox.weebly.com/uploads/1/3/4/0/134040973/poreganukonigu-vonatojivodan-vugalaxukigigib.pdfIn PDF document text
    • http://nubatevujonuw.mygamesonline.org/97407279038.pdfIn PDF document text
    • https://cdn.sqhk.co/bibobovezave/fjiifNL/32500368242.pdfIn PDF document text
    • https://cdn.sqhk.co/kovixileta/dMiccei/love_letters_in_the_sand_pat_boone_chords.pdfIn PDF document text
    • https://cdn.sqhk.co/bexuxoxabim/hhieEGo/74524788479.pdfIn PDF document text
    • https://cdn.sqhk.co/setuboluraje/5VggDjh/risk_management_skills_resume.pdfIn PDF document text
    • https://ginegumogigoxi.weebly.com/uploads/1/3/2/8/132816185/pirunujesanaxan.pdfIn PDF document text
    • http://netolenogafa.getenjoyment.net/the_missing_piece_book.pdfIn PDF document text
    • https://niromovikusuzu.weebly.com/uploads/1/3/4/6/134651616/82102.pdfIn PDF document text
    • http://zugapuvu.mywebcommunity.org/jikazuromi.pdfIn PDF document text
    • https://sesanejaw.weebly.com/uploads/1/3/1/4/131407178/cd3b2.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://dasanurarad.epizy.com/magun.pdfIn PDF document text
    • https://s3.amazonaws.com/nitidadufetenu/xapizubi.pdfIn PDF document text
    • https://s3.amazonaws.com/toliwudalamem/xefoluwukitudoxurob.pdfIn PDF document text
    • https://s3.amazonaws.com/zobuwubedak/asterisk_music_on_hold_wav_format.pdfIn PDF document text
    • http://fujurojulode.rf.gd/digitech_rp1000_manuale_italiano.pdfIn PDF document text
    • https://s3.amazonaws.com/ruzaganog/beast_quest_mod_apk_unlimited_gems.pdfIn PDF document text
    • http://sanugifop.atwebpages.com/how_to_play_cleric.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c784.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC784 5336 bytes
SHA-256: 5312af8e7ae928177218777a4e91fa598e30b0820b12529c52d9aba7fe20f8de
font_01_sfnt_off0000d9a7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD9A7 9984 bytes
SHA-256: 93ffd00fcb1c69007f95b930dd131e97285ff42f192f325894fb765387663faf

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