Malicious PDF — malware analysis report

Static analysis result for SHA-256 1549354b9ee5733b…

MALICIOUS

PDF

161.3 KB Created: 2020-09-18 14:23:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 173785d38d5392690ea0d4854886f9be SHA-1: 6625b9996405851dbfd6b6564fe2b9717a7468bc SHA-256: 1549354b9ee5733b1dd3d28863419f1d54c9e35bc5138009f0c0ad330abf62a6
94 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains a link to a known malicious redirector, indicating an attempt to lead the user to a malicious site. The ML classifier also flagged this PDF with high confidence. The embedded URL is likely intended to deliver a second-stage payload or phish for credentials.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

Heuristics 3

  • 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.
  • 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.me/wix?keyword=the+sun+earth+moon+system+worksheet+answers+mcgraw+hill
    • http://files.acarroll-wallace.com/uploads/1/3/1/8/131856374/334658.pdf
    • http://files.photosintheatticproject.com/uploads/1/3/0/7/130776037/wibotapid.pdf
    • http://vates.olympiquemontreux.com/uploads/1/3/0/7/130738836/lasaduwarosuwij.pdf
    • http://penuzifos.kevineberle.net/uploads/1/3/0/8/130874493/paxasirizisobuzijo.pdf
    • http://xegiki.pdxbridgetours.com/uploads/1/3/1/6/131636789/tawagesone_lesap_vadituneje.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0428/0965/5462/files/bookkeeping_basics_worksheet.pdf
    • https://cdn.shopify.com/s/files/1/0434/6940/6360/files/human_body_template_with_organs.pdf
    • https://cdn.shopify.com/s/files/1/0464/7963/8680/files/cbse_class_12_board_date_sheet_2020.pdf
    • https://cdn.shopify.com/s/files/1/0432/0316/6369/files/ratekesev.pdf
    • https://cdn.shopify.com/s/files/1/0430/6829/3287/files/92032421204.pdf
    • https://cdn.shopify.com/s/files/1/0427/6636/8935/files/59763387326.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/24501063531.pdf
    • https://cdn.shopify.com/s/files/1/0432/8731/4585/files/wow_battered_twilight_scale.pdf
    • https://cdn.shopify.com/s/files/1/0433/1739/5611/files/warhammer_40k_codex_adeptus_astartes.pdf
    • https://cdn.shopify.com/s/files/1/0463/3939/1644/files/62385229058.pdf
    • https://cdn.shopify.com/s/files/1/0433/0536/9758/files/albertsons_job_application.pdf
    • https://cdn.shopify.com/s/files/1/0433/6209/1167/files/woranagino.pdf
    • https://cdn.shopify.com/s/files/1/0432/1184/9890/files/44411805545.pdf
    • https://cdn.shopify.com/s/files/1/0431/7138/1405/files/64106770174.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/
    • http://scripts.sil.org/OFL
    • http://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00022991.bin
c51c5d9bd524370e4d86c7ff9a8cbd25b12116ae207509ddce2348f0fbeeefa3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x22991 5420 bytes
font_01_sfnt_off00023bee.bin
af43e731b09697e280ec62594d63f357171dbe8e414dec5f106002e246596927		 pdf-font-stream PDF embedded font (sfnt) at offset 0x23BEE 10964 bytes
font_02_sfnt_off00026100.bin
141afaf8db58339fa092443311a3ac4e87d82e6a5da1d5baa0da518c2350dd93		 pdf-font-stream PDF embedded font (sfnt) at offset 0x26100 16172 bytes

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