Malicious PDF — malware analysis report

Static analysis result for SHA-256 0596c5613a1c2368…

MALICIOUS

PDF

71.0 KB Created: 2021-02-27 03:48:23 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 7389ae06770f9ac825f793f107414d0b SHA-1: ba804ed6b7cc8f452de97bc302d83152d4506909 SHA-256: 0596c5613a1c23683e5a699304a77a0f495b60ec98cf1b807d27a6f131d4f0a5
146 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Malformed active-content stream length medium PDF_MALFORMED_EXPLOIT_STREAM_LENGTH
    A PDF stream that carries active/exploit-looking content has a declared /Length that does not match the recovered stream body. Malformed stream boundaries and length mismatches are common parser-evasion/supporting evidence around Reader exploit streams.
  • 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://fokemale.ru/award?keyword=dash+meal+plan+1200+calories PDF link annotation
    • http://wifunagidoli.mypressonline.com/apc_back-ups_rs_1500_beeping.pdfIn PDF document text
    • http://kenufapozij.22web.org/49365921379.pdfIn PDF document text
    • https://cdn.sqhk.co/gebitasixa/hfBjiOd/zeus_overthrew_his_father_cronus.pdfIn PDF document text
    • https://mixutuxo.weebly.com/uploads/1/3/4/6/134692071/2657482.pdfIn PDF document text
    • https://cdn.sqhk.co/jixuvepabu/w3wqjc1/download_battleground_pixel.pdfIn PDF document text
    • https://juzudibat.weebly.com/uploads/1/3/4/3/134328144/gonovirumijofiziro.pdfIn PDF document text
    • https://cdn.sqhk.co/togokitaz/ggjaShg/tomb_raider_2_movie_sequel.pdfIn PDF document text
    • http://roflan.site/barbershop_quartet_sheet_musicxvh1k.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://wavaradam.rf.gd/mabowijexiki.pdfIn PDF document text
    • http://vorinemoxolupip.rf.gd/fakuvesilofikugodewede.pdfIn PDF document text
    • http://moxutomib.rf.gd/80449401994.pdfIn PDF document text
    • http://mitekavutoz.rf.gd/sat_practice_test_3_scoring_sheet.pdfIn PDF document text
    • http://terajupatasan.rf.gd/ma_pass_movie_480p.pdfIn PDF document text
    • http://banobozibijur.epizy.com/garmin_delta_xc_remote_training_collar_instructions.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_off0000da39.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDA39 5496 bytes
SHA-256: e462786d2e6001024500665193ce1553ac6a64071c081b8c30ab5b24190751f2
font_01_sfnt_off0000ecca.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xECCA 10128 bytes
SHA-256: 0cffecaf6a4040f415a4c774cd934bf9fd88f384738e78aa1aee862797fc9bbe