Malicious PDF — malware analysis report

Static analysis result for SHA-256 b06e623d5ea06f40…

MALICIOUS

PDF

39.6 KB Created: 2020-03-23 14:27:11 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6) First seen: 2020-09-24
MD5: 70023ac034bd754641d494006775221f SHA-1: d5c7d6eb16f2904dda58d9d7979bcf4067c2977d SHA-256: b06e623d5ea06f406dbca6878eba2d5b6286e727dfb5714ab5ce428a0bc36341
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a large number of external links, identified by the PDF_SEO_LINK_FARM heuristic. These links point to various domains, suggesting a link farm or SEO poisoning tactic to drive traffic or potentially distribute further malware. No scripts were extracted from this sample, and the document body is heavily obfuscated, limiting further analysis of the specific lure.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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.
  • 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://sardogssearchandrescue.net/uploads/1/3/0/5/130551153/130551153.html#libro+par+biomagnetico+dr.+goiz PDF link annotation
    • http://hawkins-mediation.com/uploads/1/3/0/6/130620674/9107406a.pdfIn PDF document text
    • http://noticiasinternacionales.net/uploads/1/3/0/6/130621457/xobalifoze-musiju-gusovenupadatu.pdfIn PDF document text
    • http://twalight.com/uploads/1/3/0/4/130476053/jutevajasofafa.pdfIn PDF document text
    • http://www.poliotoolkit.org/uploads/1/3/0/9/130969477/mutukovexuji.pdfIn PDF document text
    • http://callandputoptions.net/uploads/1/3/0/4/130476216/6ce7e0d168178.pdfIn PDF document text
    • http://whiplandservices.com/uploads/1/3/0/6/130604373/goruduxon-dafotibelekoxi-bevilaf.pdfIn PDF document text
    • http://perlabaking.net/uploads/1/3/0/4/130483205/nogom.pdfIn PDF document text
    • http://mmdpgames.com/uploads/1/3/0/5/130540082/xazevusilaf.pdfIn PDF document text
    • http://apogeeprojects.com/uploads/1/3/0/4/130435649/94622.pdfIn PDF document text
    • http://helpgarret.life/uploads/1/3/0/2/130274166/9879817.pdfIn PDF document text
    • http://bookofjedism.com/uploads/1/3/0/7/130775048/6c263fcae02f400.pdfIn PDF document text
    • http://latercomics.com/uploads/1/3/0/3/130323220/xebute-wonugob-wibikinot-lojiwu.pdfIn PDF document text
    • http://mlrggcr.sites.logojoy.com/uploads/1/3/0/7/130738989/juwowulopimol-jusujibikug-jagexazapu.pdfIn PDF document text
    • http://precisionnews.net/uploads/1/3/0/4/130483552/3dc9264b9304.pdfIn PDF document text
    • http://ucipropertyservice.com/uploads/1/3/0/6/130604305/899303.pdfIn PDF document text
    • http://sandyspringswindshieldrepair.com/uploads/1/3/0/5/130550901/sozuji.pdfIn PDF document text
    • http://batteryparkschool.com/uploads/1/3/0/7/130739303/2a6e3924ac1.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
🗂 Part of campaign: fermentedspirits.com 10 samples

Related samples 2

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_off00006e54.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6E54 9164 bytes
SHA-256: 7588e5037efe5eeb70aef22e14524fab7d84d4690e553fbac418339b3000b500

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