Malicious PDF — malware analysis report

Static analysis result for SHA-256 c8ef62b254f056e7…

MALICIOUS

PDF

39.6 KB Created: 2020-05-16 22:46:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2020-09-15
MD5: a4f48811f49521c9bf861b380e32eb5e SHA-1: cb0c4d54f8711e5a23e083d6e1fecb8f62ef5809 SHA-256: c8ef62b254f056e749973b988a03d497f25bcadeac67b8f7342790a0ddd526e8
104 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF document contains a large number of external links, many of which are hosted on domains that appear to be part of a link farm. The document body text and a specific PDF URI heuristic indicate a lure related to an 'Amazon France report infringement' requiring urgent action. This suggests the document is designed to trick users into visiting malicious websites, likely for phishing or to download further malware. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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 http://mightypharaoh.com/uploads/1/3/1/8/131856813/131856813.html#amazon+france+report+infringement PDF link annotation
    • http://laurennorthgraves.com/uploads/1/3/0/6/130604020/4c4107a0a1.pdfIn PDF document text
    • http://amazdl.com/uploads/1/3/0/5/130551551/xunixivixopagixojan.pdfIn PDF document text
    • http://nctfconcealment.com/uploads/1/3/0/4/130488169/1143940.pdfIn PDF document text
    • http://richardgeraffo.com/uploads/1/3/1/4/131452785/3317451.pdfIn PDF document text
    • http://stratasoft.org/uploads/1/3/1/6/131606073/vobusoniwewa_tupejuti_radoda.pdfIn PDF document text
    • http://fournetlaw.com/uploads/1/3/1/6/131637255/kodew.pdfIn PDF document text
    • http://chitchatthisthat.com/uploads/1/3/0/7/130738484/6356588.pdfIn PDF document text
    • http://luminousplaceproject.org/uploads/1/3/0/2/130289185/1200078.pdfIn PDF document text
    • http://learnhealing.org/uploads/1/3/0/4/130435670/4241977.pdfIn PDF document text
    • http://cirugiaplasticasclc.com/uploads/1/3/1/4/131437623/727e6be36a.pdfIn PDF document text
    • http://wholeheartedgeek.shop/uploads/1/3/0/9/130969497/zowulewarug-kapasawuzo.pdfIn PDF document text
    • http://smartypantsu.org/uploads/1/3/0/4/130476207/belakoka.pdfIn PDF document text
    • http://arthappeningbridgewater.ca/uploads/1/3/0/5/130590373/xaguf.pdfIn PDF document text
    • http://stevengethard.com/uploads/1/3/0/4/130491253/masise-mipan-xurawifekuwula-xadowolaza.pdfIn PDF document text
    • http://realisticmaw.com/uploads/1/3/0/6/130603760/3074738.pdfIn PDF document text
    • http://hondaprogramcars.com/uploads/1/3/0/8/130813821/zosokadeke_wunezategok.pdfIn PDF document text
    • http://custominfluence.com/uploads/1/3/1/8/131856050/kesebudosew.pdfIn PDF document text
    • http://simplifyingcellphonestartup.com/uploads/1/3/0/6/130639336/45b4d92a4b.pdfIn PDF document text
    • http://ericbalkman.com/uploads/1/3/0/4/130476896/fixivepisu_tizobegik.pdfIn PDF document text
    • http://uapibetaphi.com/uploads/1/3/0/7/130739351/wudemodaxugidep.pdfIn PDF document text
    • http://aclassofyourown.com/uploads/1/3/0/5/130550858/4004308.pdfIn PDF document text
    • http://realtygal.net/uploads/1/3/0/7/130740062/3220148.pdfIn PDF document text
    • http://fizzers.net/uploads/1/3/0/6/130639557/jufutum_nawopaseritel_nijagupab.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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 7

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

Full JSON: related samples API

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006eb6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6EB6 10424 bytes
SHA-256: a2158e5d34b4dde0220dba608670b6d72487c7833bd965e92280e7c416d47ab3

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