Malicious PDF — malware analysis report

Static analysis result for SHA-256 b7765013a07e20ad…

MALICIOUS

PDF

73.0 KB Created: 2021-03-03 23:54:13 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-17
MD5: 7961508c8e6817d6589664474e703fa3 SHA-1: f9bd439b0fb8c2eacb5481c3dc04dd623cd13351 SHA-256: b7765013a07e20add37f8fe0ed3e3bbf28f4d7e4f727e5417a6c86be29741cc6
186 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
  • 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.
  • 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://nipisod.ru/award?keyword=acca+govt+jobs+in+india PDF link annotation
    • https://rijamukomebojo.weebly.com/uploads/1/3/4/5/134585881/8f3509778.pdfIn PDF document text
    • http://jenuxijaf.mygamesonline.org/julepuxotilesilodujokex.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4464297/normal_5fdfdf39a7d6e.pdfIn PDF document text
    • https://siregudak.weebly.com/uploads/1/3/0/7/130738759/jenogitox_ruwimijenis_bukapukasifuz.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4470968/normal_5fc5f5c23d4e4.pdfIn PDF document text
    • https://mepopukivar.weebly.com/uploads/1/3/6/0/136083549/a9f1e40.pdfIn PDF document text
    • https://cdn.sqhk.co/xurunesijud/4hiWjhd/mikafosudijo.pdfIn PDF document text
    • https://sovajavab.weebly.com/uploads/1/3/4/0/134041947/a6764004da58ed.pdfIn PDF document text
    • https://cdn.sqhk.co/sabimejuka/4Vhejjp/army_first_aid_for_burns_powerpoint.pdfIn PDF document text
    • https://relorurexo.weebly.com/uploads/1/3/5/3/135391300/zumegapomowafa.pdfIn PDF document text
    • https://doxuginuf.weebly.com/uploads/1/3/5/3/135346615/kavunufur-gimakab-webutepemagaj-xemiga.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4379846/normal_60095cc97c934.pdfIn PDF document text
    • https://xibuderopugef.weebly.com/uploads/1/3/4/0/134042602/dfde60cfbdeb.pdfIn PDF document text
    • https://lexugorubu.weebly.com/uploads/1/3/0/7/130776619/9903736.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4490141/normal_5fffd62806b19.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/gazijewevan/jogun.pdfIn PDF document text
    • http://tapoloferazuziw.atwebpages.com/bibezenirilovijowifo.pdfIn PDF document text
    • http://bebovufuvuji.myartsonline.com/metro_last_light_redux_good_ending_walkthrough.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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e281.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE281 5244 bytes
SHA-256: 40876b4da4eb1a2137ec3e9cfdf39acc8db31280bad133dbf6c8cef581515c15
font_01_sfnt_off0000f477.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF477 10096 bytes
SHA-256: e767152beb46a6581ca5646a97e578827a16f906d5e088a39e24dd9e5f699cce

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