Malicious PDF — malware analysis report

Static analysis result for SHA-256 b949ade104651e89…

MALICIOUS

PDF

48.0 KB Created: 2020-07-14 08:57:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: d799fabf91a8182e160880a33ad4b16e SHA-1: 0951111020ca6e85ed275580ebb4576507146924 SHA-256: b949ade104651e8977f23f19bd27aa12c712c946c75a435232319d0fd3f1b93a
152 Risk Score

Malware Insights

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

The PDF file was flagged by a machine learning classifier and contains a large number of external links, many pointing to Shopify domains. One embedded URL, 'https://ttraff.cc/wb?keyword=maitrise%20d'oeuvre%20projet%20informatique%20pdf', is identified as a known malicious redirector. This suggests the document is part of a link farm designed to lure users to malicious sites, likely for phishing or malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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://ttraff.cc/wb?keyword=maitrise%20d
    • http://files.seedingreciprocity.com/uploads/1/3/1/4/131453651/gitekuwuxatimezo.pdf
    • http://files.sacapostles.org/uploads/1/3/1/0/131071297/2753730.pdf
    • http://files.rabbitmountainlavender.com/uploads/1/3/0/7/130738625/futevukumuj_lulamatix_libujuferebetux.pdf
    • http://files.fairytalefit.com/uploads/1/3/1/1/131164211/dumebipajunajoj.pdf
    • http://files.rabbitmountainlavender.com/uploads/1/3/0/7
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/kebiwubinixakagaxirefu.pdf
    • https://cdn.shopify.com/s/files/1/0431/7950/7870/files/wovufurivemo.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/wonazonuv.pdf
    • https://cdn.shopify.com/s/files/1/0433/5819/1768/files/subobivi.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/24413790208.pdf
    • https://jenunosij.files.wordpress.com/2020/06/12850264882.pdf
    • https://tenolal.files.wordpress.com/2020/07/51219977955.pdf
    • https://fajetiw.files.wordpress.com/2020/06/dotenogopi.pdf
    • https://pulebikib.files.wordpress.com/2020/07/nulige.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/fusuzirosaf.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/vunumegosuvuvorewufo.pdf
    • https://cdn.shopify.com/s/files/1/0429/9004/3287/files/biduzozedogodobilur.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/zabaravoxetifup.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/97454987384.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/41697505155.pdf
    • https://cdn.shopify.com/s/files/1/0429/0415/8375/files/fowidodavowinisikibarevar.pdf
    • https://cdn.shopify.com/s/files/1/0427/6027/4087/files/53884558616.pdf
    • 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/

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007904.bin
4c14f2ee15c3fe5f10fc72d4105e4ba583768ce909134217b0b73b348f2c8108		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7904 5340 bytes
font_01_sfnt_off00008b25.bin
d4158e9c24fad8de53e22264a9b05b5d997a6abdaedb3ce0f5f3bd99728b3555		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8B25 11856 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.