Malicious PDF — malware analysis report

Static analysis result for SHA-256 182ee75e627f9653…

MALICIOUS

PDF

40.1 KB Created: 2020-08-30 16:46:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: d2f5b6f4ff6517b3608a9ece0fb263de SHA-1: 1e45d49d79ede33ac4e329a266d21ad9d5eb1c9c SHA-256: 182ee75e627f9653b56d7b80b4b30e318281b51f3f1820708bc2ce1590254751
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous links, including one pointing to a known malicious redirector at 'https://ttraff.com/wix?keyword=apple+ipod+shuffle+1st+generation+ma'. This suggests an attempt to direct users to malicious content, likely for phishing or malware distribution. The presence of a large number of external links, many hosted on Shopify, indicates a link farm strategy, potentially for SEO manipulation or to obscure the malicious destination.

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.com/wix?keyword=apple+ipod+shuffle+1st+generation+ma
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0436/4356/8278/files/88555389358.pdf
    • https://cdn.shopify.com/s/files/1/0435/0086/3643/files/31908410715.pdf
    • https://cdn.shopify.com/s/files/1/0440/0224/6814/files/arsenal_vs_burnley_formation.pdf
    • https://cdn.shopify.com/s/files/1/0434/4807/4405/files/65468177255.pdf
    • https://cdn.shopify.com/s/files/1/0433/6526/9669/files/pakewiranuz.pdf
    • https://cdn.shopify.com/s/files/1/0431/4890/2556/files/writing_academic_english_4th.pdf
    • https://cdn.shopify.com/s/files/1/0434/6537/5908/files/moxufo.pdf
    • https://cdn.shopify.com/s/files/1/0431/4942/6839/files/21896798968.pdf
    • https://cdn.shopify.com/s/files/1/0431/1760/9122/files/bazinizukufedotamusijota.pdf
    • https://cdn.shopify.com/s/files/1/0431/4313/5393/files/why_are_my_steam_downloads_so_slow.pdf
    • https://cdn.shopify.com/s/files/1/0463/1858/3973/files/lixopikunagadigi.pdf
    • https://cdn.shopify.com/s/files/1/0437/5219/4202/files/employment_news_21_27_september_2020.pdf
    • https://static.usrfiles.com/ugd/b56239_e579379bc14c423bacb6b5f6715e62f9.pdf
    • https://static.usrfiles.com/ugd/b8c837_31a8c369cba9457ca7d3468049512af9.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_off00005e9a.bin
03195bf1ce2b51890c2a45ae78a15b76f0944cd04604ecfc61e5e047e05b839e
pdf-font-stream PDF embedded font (sfnt) at offset 0x5E9A 5496 bytes
font_01_sfnt_off0000711f.bin
4e445c816dbaab77c870cd6910aaec6f688b83884a2ef5b7cd58b54ddf784a40
pdf-font-stream PDF embedded font (sfnt) at offset 0x711F 10228 bytes