Malicious PDF — malware analysis report

Static analysis result for SHA-256 2f7c0d589791beb0…

MALICIOUS

PDF

60.6 KB Created: 2020-03-12 11:39:42 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6) First seen: 2020-09-24
MD5: 73005e57d6b2c6e12900af091c3eedb0 SHA-1: 804e10e57eb10754342309949d7ceab08ec94fc5 SHA-256: 2f7c0d589791beb0624bea8ff125463dba296afc873e68c83a10be1c75c2db55
96 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded external links, a technique often used for SEO spam or to redirect users to phishing sites. The heuristic 'PDF_SEO_LINK_FARM' specifically flags this behavior, indicating a large farm of external PDF links. The document body contains a mix of seemingly random text and URLs, further supporting the link farm hypothesis.

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://www.stephaniecannonlifecoach.co.za/uploads/1/3/0/4/130436306/130436306.html#alaipayuthe+kanna+lyrics+in+malayalam PDF link annotation
    • http://hdpmarriottportfolio.com/uploads/1/3/0/8/130814856/6925776.pdfIn PDF document text
    • http://www.lavidawithwings.com/uploads/1/3/0/8/130813330/pirit_wivivuju_mugijiko_kofemi.pdfIn PDF document text
    • http://mrswoodard.net/uploads/1/3/0/6/130604081/lebowudonana.pdfIn PDF document text
    • http://m.lappeusfuneralhome.com/uploads/1/3/0/9/130969639/4816285.pdfIn PDF document text
    • http://oursustainableag.com/uploads/1/3/0/8/130874223/zazazawow_manesel.pdfIn PDF document text
    • http://pentecostalsofparkersburg.com/uploads/1/3/0/2/130289696/06054e465c27a6.pdfIn PDF document text
    • http://mindfulmansi.com/uploads/1/3/1/0/131070327/bugifuginir_gemiwora_lijaraxukot_xewipuzawizota.pdfIn PDF document text
    • http://hostmaster.pensionvansaphoshoeve.be/uploads/1/3/0/4/130476273/keninovow_xerunubulasazu_zezatinasufesug_joluzofo.pdfIn PDF document text
    • http://www.tmhairco.com/uploads/1/3/0/7/130739674/361624.pdfIn PDF document text
    • http://waynecountyveterans.com/uploads/1/3/0/2/130274281/maforo.pdfIn PDF document text
    • http://hostmaster.pattersondressagemusic.com/uploads/1/3/0/3/130379611/nesasi.pdfIn PDF document text
    • http://fejoya.com/uploads/1/3/0/6/130620709/kuluxad-lujede.pdfIn PDF document text
    • http://mantiqueiraorganicos.com/uploads/1/3/0/4/130488544/pizegekixetepevinipe.pdfIn PDF document text
    • http://krafjohor.com/uploads/1/3/0/7/130776589/2ec2f9.pdfIn PDF document text
    • http://parallelgirls.com/uploads/1/3/0/2/130287313/8927734.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://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
🗂 Part of campaign: accountingredflags.com 9 samples

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_off0000b00f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB00F 8288 bytes
SHA-256: e292e91464d1a4136482914db686e6fc990809c30cd66672fcf5fd1d9f937430
font_01_sfnt_off0000cfe1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCFE1 16036 bytes
SHA-256: b3affdfdfee497c2d3230853582529cf395d265bfdbb8cde7d84ae9c33602211

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