Malicious PDF — malware analysis report

Static analysis result for SHA-256 d1428225ef7c8bcc…

MALICIOUS

PDF

41.1 KB Created: 2020-03-08 00:17:21 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6) First seen: 2020-09-24
MD5: 846b86f58fee9985a580d7fb53f6f4c0 SHA-1: dfdfe4c72461296324b65eeeba2bcc09f7e98992 SHA-256: d1428225ef7c8bcc214519a80982499bfbec4a3f8cbfa4615dde8bb69afffd71
156 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF document contains a lure for 'Internet banking online registration' and exhibits a link farm structure, suggesting it's part of a phishing campaign. The presence of multiple external PDF links points to a strategy of distributing malicious content across various domains. The document also includes heuristics indicating it's designed to harvest MFA codes or prompt callback phishing, further reinforcing its malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • MFA / one-time-code harvesting lure high SE_MFA_LURE
    Document asks for a one-time code, authenticator approval, or MFA confirmation — consistent with credential phishing kits that steal session tokens or abuse multi-factor authentication
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
  • 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://hypnose-kinderwunsch.com/uploads/1/3/0/8/130813588/130813588.html#internet+banking+online+registration+union+bank+of+india PDF link annotation
    • http://body-volume.com/uploads/1/3/0/6/130639581/xomuwur.pdfIn PDF document text
    • http://larkappella.com/uploads/1/3/0/2/130291029/05265d7.pdfIn PDF document text
    • http://www.committobetter.com/uploads/1/3/0/8/130874262/zevanidafilolek.pdfIn PDF document text
    • http://rethreadclothingco.com/uploads/1/3/0/7/130739280/nisowaj-rovizoku-joxofumasiwib.pdfIn PDF document text
    • http://northbridgepropertyrights.com/uploads/1/3/0/8/130814122/4235c590a6.pdfIn PDF document text
    • http://theworldofboden.com/uploads/1/3/0/8/130815664/4328520.pdfIn PDF document text
    • http://castvo.com/uploads/1/3/0/5/130544652/sugozasi.pdfIn PDF document text
    • http://sweetdreamsdelight.org/uploads/1/3/0/6/130604147/ziguvoxebasu_dakuf_fizimitubivane.pdfIn PDF document text
    • http://phobsies.ca/uploads/1/3/0/7/130740196/xodukemokaxex_fozep_fevina_tikadorix.pdfIn PDF document text
    • http://ags-us.org/uploads/1/3/0/8/130874282/temepazabitoxu.pdfIn PDF document text
    • http://kittycomfortpetsitting.com/uploads/1/3/0/5/130538986/2682603.pdfIn PDF document text
    • http://www.aerialvisionservices.org/uploads/1/3/0/6/130603866/rajodiw.pdfIn PDF document text
    • http://shinebrightsolarcleaning.com/uploads/1/3/0/5/130550764/gisenirevirose-fibazulijabi-dowadokatig.pdfIn PDF document text
    • http://mail.thelambranch.com/uploads/1/3/0/7/130738646/3051353.pdfIn PDF document text
    • http://vincesfamous.com/uploads/1/3/0/7/130775164/vevuborigowu_fefuwe_nipanunetok.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: shinebrightsolarcleaning.com 3 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_off0000774e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x774E 8124 bytes
SHA-256: 982e5be87fb567fcfee47565688f3889272713c38e1a1b34550ed3c5473ca6b4

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