Malicious PDF — malware analysis report

Static analysis result for SHA-256 09c963374ae4007a…

MALICIOUS

PDF

42.7 KB Created: 2020-09-18 01:44:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 514d3403e89f6aecc8cb8e870529d194 SHA-1: 9ef16735fb5c0de80811fae5d141b2c7e7c4f227 SHA-256: 09c963374ae4007ab5b30bff56c3fedc04f707eb792a918cb7d820576047fafe
194 Risk Score

Malware Insights

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

This PDF document is identified as malicious due to its structure and embedded links, which are characteristic of an advance-fee scam. The document contains numerous links, including one to a known malicious redirector, designed to lure users into clicking and potentially downloading further malicious content. The presence of lottery or prize language combined with parcel delivery requirements strongly indicates an advance-fee fraud scheme.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • 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.
  • Advance-fee lottery/parcel scam lure high SE_ADVANCE_FEE_SCAM_LURE
    Document contains lottery/beneficiary or prize language together with large-value draft/funds wording and parcel/courier delivery requirements. This is a classic advance-fee fraud document shape.
  • 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.link/wix?keyword=ubuntu+webcam+manual+focus
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0428/3426/4231/files/58815427401.pdf
    • https://cdn.shopify.com/s/files/1/0431/4628/1121/files/75299014703.pdf
    • https://cdn.shopify.com/s/files/1/0432/0778/6654/files/jironinedeviwapemogam.pdf
    • https://cdn.shopify.com/s/files/1/0436/8770/6777/files/24524140286.pdf
    • https://cdn.shopify.com/s/files/1/0428/2885/7503/files/javuvobidanonodelam.pdf
    • https://99396ec6-a4b0-4e40-97ae-1edc852e8735.filesusr.com/ugd/dad7b5_edff1ec531e5436a95f8aff759f7e731.pdf?index=true
    • https://b54194ce-7dbf-4564-8eef-ac135a90625d.filesusr.com/ugd/694d5d_1ca6893445524709966fefe43de6b9c7.pdf?index=true
    • https://fd6fb098-a6e3-4052-ba04-b6cac29ffece.filesusr.com/ugd/90c678_c90512c386f9437a97cadc1bc20a5371.pdf?index=true
    • https://45cd334e-f35a-41e4-8af6-b7351ff5d780.filesusr.com/ugd/b7ab08_ce6d0d843a6d422f88569c3e5a795850.pdf?index=true
    • https://7b3f311b-747a-489c-a931-e1316a9114a6.filesusr.com/ugd/fedf23_1921c0d41963489282107d0d11c7d8d5.pdf?index=true
    • https://c7dac121-0e5b-4f98-b38b-537c00ce9e88.filesusr.com/ugd/8d0191_0847400b178b44039171dd59a5a1fbe5.pdf?index=true
    • https://bfd9fb44-bb00-4807-9bd4-b8b24b03eea7.filesusr.com/ugd/3f2390_20ced6c1a19c4a998f80043900bacf9a.pdf?index=true
    • https://cdn.shopify.com/s/files/1/0437/2951/8746/files/charice_and_alyssa_quijano.pdf
    • https://cdn.shopify.com/s/files/1/0433/3728/5797/files/46576018235.pdf
    • https://cdn.shopify.com/s/files/1/0432/8292/3676/files/30944662110.pdf
    • https://cdn.shopify.com/s/files/1/0435/6256/5795/files/les_articles_partitifs_grammaire.pdf
    • https://cdn.shopify.com/s/files/1/0434/0239/5798/files/value_of_playboy_magazines.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006816.bin
91f70dc57f9ad83c03b307386a04b5ebd32bfb6c083e501e18b594915b0d6bf8
pdf-font-stream PDF embedded font (sfnt) at offset 0x6816 5156 bytes
font_01_sfnt_off000079ad.bin
cb2226e958f11f726aac28904866ad06e0d75e6dbfd0e9671a4c38d96864b56c
pdf-font-stream PDF embedded font (sfnt) at offset 0x79AD 10624 bytes