Malicious PDF — malware analysis report

Static analysis result for SHA-256 cc480a13157cb008…

MALICIOUS

PDF

82.8 KB Created: 2021-01-12 12:31:00 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-11
MD5: 1231187fbdff42b918c6841118471c60 SHA-1: c1de8f97eabc662514f75321e12409ad3d96e0bf SHA-256: cc480a13157cb008d05e60010d44a729bc58ae2b721f8715e3b9770ee219d04c
244 Risk Score

Malware Insights

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

This PDF document contains numerous links to external websites, many of which are hosted on disposable domains and appear to be part of a link farm. One critical heuristic indicates that the PDF links to known malicious redirector infrastructure. The document body, though heavily obfuscated, suggests a lure related to legal forms, likely intended to trick users into clicking malicious links for phishing or malware delivery. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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.
  • 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://gettraff.ru/aws?utm_term=affidavit+death+of+joint+tenant+form+california In PDF document text
    • https://damemerivojed.weebly.com/uploads/1/3/4/3/134378109/nesetuxodapej_koxefu.pdfIn PDF document text
    • https://cdn.sqhk.co/vuwonesi/UKjn8hd/76067951199.pdfIn PDF document text
    • https://site-1177946.mozfiles.com/files/1177946/ryan_s_world_ninja_warrior_shadow_box.pdfIn PDF document text
    • https://padudarudiloga.weebly.com/uploads/1/3/4/7/134714427/zenikukavasuxulav.pdfIn PDF document text
    • https://site-1175991.mozfiles.com/files/1175991/gimuravasabeposazi.pdfIn PDF document text
    • https://site-1175531.mozfiles.com/files/1175531/business_manager_jobs_san_antonio.pdfIn PDF document text
    • https://webeboxux.weebly.com/uploads/1/3/4/4/134493090/dedagozizoj_degoxur.pdfIn PDF document text
    • https://vejiledulibona.weebly.com/uploads/1/3/4/3/134318828/9337292.pdfIn PDF document text
    • https://site-1167951.mozfiles.com/files/1167951/30077805157.pdfIn PDF document text
    • https://site-1176532.mozfiles.com/files/1176532/50361282032.pdfIn PDF document text
    • https://tixonanixob.weebly.com/uploads/1/3/4/8/134890866/7614382.pdfIn PDF document text
    • https://gofegupozomo.weebly.com/uploads/1/3/4/4/134479888/jebabexebaguto_vixeluwebiz.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://s3.amazonaws.com/suxiweke/articulation_temporo_mandibulaire.pdfIn PDF document text
    • https://s3.amazonaws.com/wunojipu/sasojekubaziratoxedop.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f96a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF96A 4996 bytes
SHA-256: 9d4b1f6aa8fb11ffe2bb4d525cb34904c1280b6e32c7d97a864ea7fbc92be0e7
font_01_sfnt_off00010a3a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10A3A 10936 bytes
SHA-256: 8af1d40f6252e3209f6568c6a28cbaa90c482e093f755031958e96c4e4ea304b
font_02_sfnt_off00012fae.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12FAE 4324 bytes
SHA-256: 1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361

Open this report in the interactive analyzer, or submit your own file for analysis.