Malicious PDF — malware analysis report

Static analysis result for SHA-256 2cb7ed0e22f108cf…

MALICIOUS

PDF

67.5 KB Created: 2021-03-15 13:23:38 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 98c7a87ee9ed9292dd75dc19091dba27 SHA-1: 64e803cd2cc78babd59aadac9ed1f44dd14824f3 SHA-256: 2cb7ed0e22f108cf0714025164282c0e378ce74bf1fb4e705abd689c1ff4fb22
96 Risk Score

Malware Insights

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

The PDF contains an embedded URL that directs users to a malicious domain, likely for phishing or malware distribution. The ML classifier and ClamAV detection strongly indicate malicious intent. Although no scripts were explicitly extracted, the PDF structure and embedded URIs suggest it's designed to exploit vulnerabilities or trick users into visiting harmful sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

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://vilenefex.ru/123?utm_term=narrative+report+buwan+ng+wika+2018
    • http://sevezor.scienceontheweb.net/zumuzarimowegititugogivo.pdf
    • https://cdn.sqhk.co/fuwifemi/haidqFp/29229075595.pdf
    • http://bridgecommerce.com/botuxubuxolibuf99zq5.pdf
    • http://dasezin.getenjoyment.net/family_feud_game_points.pdf
    • http://jabilevij.mypressonline.com/epson_wf_2540_printer_error.pdf
    • https://xabejopoturidu.weebly.com/uploads/1/3/4/3/134352457/9337775.pdf
    • http://salonlabs.xyz/how_to_lose_weight_paleo_styleo8mku.pdf
    • http://vowewudimo.mypressonline.com/how_to_export_garageband_to_wav_ipad.pdf
    • http://lawexape.mygamesonline.org/45340469234.pdf
    • http://vodoroding.info/wakakekomojijumunugikufjrk.pdf
    • https://tukusalo.weebly.com/uploads/1/3/0/9/130969921/666b0b52f19.pdf
    • http://sitizinudex.getenjoyment.net/18802894216.pdf
    • http://kfnwejfnkwheklf.space/hormona_luteinizante1t77f.pdf
    • http://francobusiness.com/85007117505o2xhx.pdf
    • https://cdn.sqhk.co/noruwotil/eghrhd7/logo_cabify_vector.pdf
    • https://cdn.sqhk.co/janawezexoj/Ne6IjcK/maze_for_kid.pdf
    • http://help-violation.com/how_to_replace_tissot_1853_watch_battery9xvuz.pdf
    • http://kimujedat.mygamesonline.org/californication_bass.pdf
    • https://tamunalu.weebly.com/uploads/1/3/3/9/133999965/7c9265.pdf
    • https://gagopono.weebly.com/uploads/1/3/2/6/132681316/pozifazalorukeni.pdf
    • https://cdn.sqhk.co/wugolekufo/xb6Brjh/jojibemawatuzizup.pdf
    • http://pikegupima.medianewsonline.com/glands_in_human_body_and_their_functions_download.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://tebaputazaxuva.myartsonline.com/eso_bloodfiend_vampirism.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_off0000c96b.bin
60d031dc24ef9bc81783f851988f8e7575792d0ef5ab8cc48bd6aed232f9faef
pdf-font-stream PDF embedded font (sfnt) at offset 0xC96B 5624 bytes
font_01_sfnt_off0000dcc6.bin
2d7ee49f8820cb3af666324c5fac9a0f40ccc353b6ed8b167d371c06e38b12bd
pdf-font-stream PDF embedded font (sfnt) at offset 0xDCC6 10732 bytes