Malicious PDF — malware analysis report

Static analysis result for SHA-256 261ace7a38a89c5a…

MALICIOUS

PDF

78.9 KB Created: 2021-03-22 04:33:03 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 05c6a6f1d20e87baa1dddb4e751e92bf SHA-1: b205d4460891a9149cc2a15abc9bd41530f75bd4 SHA-256: 261ace7a38a89c5acd0b3c43d83aa1bc80fb69e89ff9ec5c29cfaef262756490
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

Heuristics 5

  • 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.
  • 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://lozipotod.ru/award?keyword=product+catalogue+sample+pdf
    • http://sexesex.site/vodojonojoobdlf.pdf
    • http://lnstagramverificationbadge.com/58901467884ktjdi.pdf
    • http://universe1.space/32125313609sdkri.pdf
    • https://cdn-cms.f-static.net/uploads/4387815/normal_60567ca2d736a.pdf
    • https://cdn.sqhk.co/wedowetaso/inqKiiH/pijinivazenolorine.pdf
    • http://magnitoli-2ekran.site/troll_face_quest_horror54fp5.pdf
    • https://cdn.sqhk.co/nuzitomizaj/SYij0XL/hero_xtreme_160r_price_in_chennai.pdf
    • https://cdn.sqhk.co/dodalowogiv/dheRotp/41620414238.pdf
    • http://mushygushysayings.com/o_que_e_pesquisa_bibliografica9r53p.pdf
    • http://dietnatur.fun/types_of_adjectives_in_englisht243f.pdf
    • https://cdn-cms.f-static.net/uploads/4476924/normal_60256bb3377d6.pdf
    • https://cdn.sqhk.co/vedasukuki/hAGjibY/62786795772.pdf
    • https://cdn.sqhk.co/difejekexe/gjrVopa/glowroad_online_shopping_app_download.pdf
    • https://cdn.sqhk.co/sabiwizi/gLcqRWx/mobile_phone_fixing_store_cell_repair_mechanic_williamsburg.pdf
    • http://ndfnasg.xyz/8615654207897upy.pdf
    • http://infokurs.design/jesiw43zry.pdf
    • https://cdn.sqhk.co/mojaribi/74Dih4p/gisezudovezom.pdf
    • https://cdn.sqhk.co/butexuvokufo/igjymhh/vivod.pdf
    • https://cdn.sqhk.co/mogidamiko/ibWPide/55476221455.pdf
    • http://kinorio5.xyz/de_re_militaritg0i8.pdf
    • http://kalavar.xyz/54003182964zfh4b.pdf
    • https://cdn.sqhk.co/lexujowina/J8jeogd/do_not_touch_willie.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://198ac300-f2de-41a8-aaa9-2df0d2bfefbb.filesusr.com/ugd/232b71_60c707a046a94264b424c5b945bad929.pdf?index=true
    • https://a121017b-3fb3-450c-9156-48dd71a9bf80.filesusr.com/ugd/07625c_3a700dade1a4429699bcfffb2b35f515.pdf?index=true
    • https://29ca30ec-7ad4-487f-8637-d2d67f3a323c.filesusr.com/ugd/10b11f_36549ebc7fc44c1d81b5074dbcb058b1.pdf?index=true
    • 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_off0000f7f5.bin
df584a325fafd6712363251d6a26f78f321857208f5d9bb6fe4cd78b1198ead5
pdf-font-stream PDF embedded font (sfnt) at offset 0xF7F5 5476 bytes
font_01_sfnt_off00010a7e.bin
e838711376cce33986ad9b214f34f7758ebfd0ca2069f532a3577f6691272cd2
pdf-font-stream PDF embedded font (sfnt) at offset 0x10A7E 10624 bytes