Malicious PDF — malware analysis report

Static analysis result for SHA-256 1eeae4c4d3bb1166…

MALICIOUS

PDF

134.5 KB Created: 2020-06-05 05:04:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2020-09-24
MD5: ff24535398ce7764b42e1264ddbc311d SHA-1: d6df41ad4d421ed6f231cb07ea5b16ab18f29f68 SHA-256: 1eeae4c4d3bb11662c8419afb9f625dc1f7b526490911e0d3dd3f7e7bcff3ff9
156 Risk Score

Malware Insights

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

The PDF document contains a large number of external links, many of which point to PDF files with numeric or slug-based URLs, indicating a potential link farm or SEO manipulation tactic. The ClamAV detection as 'Pdf.Dropper.Agent' suggests it's designed to download and execute further malicious content. The embedded URL 'http://webmail.gingerscandlecompany.com/uploads/1/3/1/3/131383377/131383377.html#connecticut+body+rubs' is likely part of this malicious infrastructure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9864

Heuristics 5

  • ClamAV: Pdf.Dropper.Agent-8754654-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Dropper.Agent-8754654-0
  • 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://webmail.gingerscandlecompany.com/uploads/1/3/1/3/131383377/131383377.html#connecticut+body+rubs PDF link annotation
    • http://monsoonsail.com/uploads/1/3/1/1/131163836/xubojem_tovivexonibo_kaxiv.pdfIn PDF document text
    • http://todaycounts.org/uploads/1/3/0/6/130620756/7190528.pdfIn PDF document text
    • http://hostmaster.dubculturerecords.co.uk/uploads/1/3/0/2/130288383/276746.pdfIn PDF document text
    • http://orderedelements.com/uploads/1/3/0/6/130621934/9468354.pdfIn PDF document text
    • http://liberiasfinestapparel.shop/uploads/1/3/1/4/131453397/maburotet_jununo_visojizosajubip_solunorofibesep.pdfIn PDF document text
    • http://elmimpressions.com/uploads/1/3/0/5/130551750/zopufiwogu.pdfIn PDF document text
    • http://3feetforpete.org/uploads/1/3/1/3/131380755/5120259.pdfIn PDF document text
    • http://newyorkwinelaw.com/uploads/1/3/0/5/130539084/fapibonujelax.pdfIn PDF document text
    • http://specialeventsmusicut.com/uploads/1/3/0/9/130969137/vekuluzedejukutogex.pdfIn PDF document text
    • http://cpcontacts.tivestoboutique.com/uploads/1/3/0/7/130739258/9320272.pdfIn PDF document text
    • http://lifecarenutritionals.com/uploads/1/3/0/7/130775087/395437.pdfIn PDF document text
    • http://webmail.gingerscandlecompany.com/uploads/1/3/1/3/131383377/terms.htmlIn PDF document text
    • http://webmail.gingerscandlecompany.com/uploads/1/3/1/3/131383377/dmca.htmlIn PDF document text
    • http://webmail.gingerscandlecompany.com/uploads/1/3/1/3/131383377/policy.htmlIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://lelefatise.files.wordpress.com/2020/06/fawulome.pdfIn PDF document text
    • https://viporuniza396074151.files.wordpress.com/2020/06/lesuref.pdfIn PDF document text
    • https://paxaweki176183565.files.wordpress.com/2020/06/jaxixopomebod.pdfIn PDF document text
    • https://nuzegoxufuko.files.wordpress.com/2020/06/51088623842.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
    • https://savannah.gnu.org/projects/freefont/In PDF document text
    • http://www.gnu.org/licenses/In PDF document text
    • http://www.gnu.org/copyleft/gpl.htmlIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 8

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000da7e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDA7E 8900 bytes
SHA-256: 191990626243ab1fa5ee498a96ce965dfa204a6d64a629677ff230427fb27e37
font_01_sfnt_off0000f29e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF29E 6032 bytes
SHA-256: b4118534c9819392439e79eda65195b74650a71a7f04b8b73c335ac335c36eb6
font_02_sfnt_off0001032f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1032F 6168 bytes
SHA-256: d6c296583d5428cb7dea80cdea79a3442b870467aa84b677440e9c7aa3f3e5b2
font_03_sfnt_off00011208.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11208 46852 bytes
SHA-256: f2ec41f5aff7df3ac6e370c43c685e585ba8c40823c1e4a91c8cf11d21a5b7d4
font_04_sfnt_off000194a3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x194A3 16976 bytes
SHA-256: ca9f6c6d67ca4c8f66248e39d9ec05a490896f5f5aecfd83a3992c9b1e0c0dd1
font_05_sfnt_off0001c977.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1C977 23272 bytes
SHA-256: 6d11b0ead4af1c867814e43e0433b752b09e7984d2d7687b70da3f15701fa271
font_06_sfnt_off0001f3a2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1F3A2 1748 bytes
SHA-256: fc9aa48e79ccc6e0f914b4748175334026105657c0013aac1cfefd8d71ef0bcc
font_07_sfnt_off0001fae7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1FAE7 6452 bytes
SHA-256: 36eb303d1b98b280099ba021122d887a9cb1afaf81aa1408da2d5013da5a4d12