Malicious PDF — malware analysis report

Static analysis result for SHA-256 e76a0463075e9ebd…

MALICIOUS

PDF

53.2 KB Created: 2020-03-14 20:31:46 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6) First seen: 2020-09-04
MD5: 3521f1c5d1a07cd2d98c30307e5f73f6 SHA-1: d558105640ed7e69beb121d2923e51ab403c265b SHA-256: e76a0463075e9ebde4fc32736ae2fc1b3e25906a943d186dd2a6de5a6f583c07
136 Risk Score

Malware Insights

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

The PDF file contains a large number of external links, many of which are structured to appear as SEO content, pointing to other PDF files. This behavior is indicative of a link farm designed to distribute malicious content. The heuristic 'SE_PASSWORD_ARCHIVE_LURE' suggests that the document may also be instructing users to decrypt an archive, a common tactic to bypass security scanners. The primary lure appears to be 'Pandora music for iPhone', directing users to a potentially malicious HTML file.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • 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.
  • Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
    Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
  • 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://x0226529xstreamtravel.xsideas.com/uploads/1/3/0/7/130776141/130776141.html#pandora+music++for+iphone PDF link annotation
    • http://mypalmshores.com/uploads/1/3/0/4/130435624/bewenil.pdfIn PDF document text
    • http://tastingfair.ca/uploads/1/3/0/7/130775741/833088.pdfIn PDF document text
    • http://ovrkll.net/uploads/1/3/0/6/130604656/65d78df725be.pdfIn PDF document text
    • http://mettleheart.com/uploads/1/3/0/2/130288673/4564671.pdfIn PDF document text
    • http://mta-sts.mail.londontowalsingham.com/uploads/1/3/0/6/130605111/b938d0.pdfIn PDF document text
    • http://mytopfoundation.com/uploads/1/3/0/9/130969465/nekokepal.pdfIn PDF document text
    • http://sustainguitar.com/uploads/1/3/0/5/130540405/320495646.pdfIn PDF document text
    • http://8manbaseball.com/uploads/1/3/0/6/130620173/7089058.pdfIn PDF document text
    • http://waterheaterinsanfrancisco.com/uploads/1/3/0/6/130639786/f9d9ff26bcee5.pdfIn PDF document text
    • http://aquase.net/uploads/1/3/0/7/130739678/jobelatuwokix.pdfIn PDF document text
    • http://whatthetruckgr.com/uploads/1/3/0/6/130620265/mujerimerikusat.pdfIn PDF document text
    • http://enchantedoils.com/uploads/1/3/0/4/130436165/2e033f4.pdfIn PDF document text
    • http://discoverzoomingroomin.com/uploads/1/3/0/5/130589431/sokuv.pdfIn PDF document text
    • http://glmedics.com/uploads/1/3/0/6/130640225/fbf6ef57d8e3.pdfIn PDF document text
    • http://bennetturbanfarm.com/uploads/1/3/0/7/130739583/1abed5ebbec.pdfIn PDF document text
    • http://riversidepropertymaintenance.com/uploads/1/3/0/5/130588906/7548142.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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
    • https://fedoraproject.org/wiki/Licensing/LiberationFontLicenseIn PDF document text
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 5

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000719f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x719F 6412 bytes
SHA-256: efe41cb4757344bda3dd1affbfa1d1fc6d539c0708bc1541b179df59fdef8392
font_01_sfnt_off00008132.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8132 7824 bytes
SHA-256: d959d565659c547863a1b7bce59f4c40d5ce94b01950b96694ef2ad1a9944986
font_02_sfnt_off00009fbc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9FBC 2628 bytes
SHA-256: ad6001544931b982f6f7da1832bf13fec8344b0eac1307571a142e09cd2bc38c
font_03_sfnt_off0000a901.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA901 1564 bytes
SHA-256: 41846dadc34e79f4ed6c7dde7b60e16cd295d7e058a7c84886fab6e2f9447986
font_04_sfnt_off0000b127.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB127 16064 bytes
SHA-256: d60e2eb62e2a9765a1c86d97aa356a395f69e1f52e6372c90c7944723fa29a8c

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