Malicious PDF — malware analysis report

Static analysis result for SHA-256 080943337eab0d62…

MALICIOUS

PDF

45.7 KB Created: 2020-08-01 14:39:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3a0e7ed145d594b0d4e218a6f42bbf8d SHA-1: 3b17478beae52bf644e4074ba58af3565628a13c SHA-256: 080943337eab0d628d7ccc6c5a3770d93a37acd92c7f42201f1e317d715b6eb1
174 Risk Score

Malware Insights

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

This PDF document contains a malicious redirector link and a large number of SEO-optimized PDF links, indicating a link farm designed to attract traffic. The document body, though heavily obfuscated, contains the URL https://ttraff.com/pify?keyword=sentry+safe+forgot+combination, suggesting a lure related to account recovery or security issues. The presence of numerous benign-looking Shopify links likely serves to mask the malicious redirector.

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.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
  • 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/pify?keyword=sentry+safe+forgot+combination
    • http://files.carmenleonamartin.com/uploads/1/3/1/3/131380308/9360389.pdf
    • http://files.healthydancercanada.org/uploads/1/3/0/8/130813887/lapudago_vimilowibin_raxejikideru_gatifep.pdf
    • http://files.cyhmnslam.com/uploads/1/3/0/7/130775983/sawejejari.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0431/7098/8196/files/55809328766.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/71062637782.pdf
    • https://cdn.shopify.com/s/files/1/0431/7764/0092/files/jalitiviri.pdf
    • https://cdn.shopify.com/s/files/1/0428/2531/8563/files/ravalite.pdf
    • https://cdn.shopify.com/s/files/1/0433/9505/5777/files/wumegasele.pdf
    • https://cdn.shopify.com/s/files/1/0429/2391/7478/files/69433353255.pdf
    • https://cdn.shopify.com/s/files/1/0438/2133/4690/files/66922089118.pdf
    • https://cdn.shopify.com/s/files/1/0431/8298/1281/files/72119996889.pdf
    • https://cdn.shopify.com/s/files/1/0438/5167/7856/files/wanika.pdf
    • https://cdn.shopify.com/s/files/1/0431/7849/2072/files/sefonafovalonazenu.pdf
    • https://cdn.shopify.com/s/files/1/0431/5496/4637/files/72257550485.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_off0000735f.bin
fa89f3971018b199854c6a9a83ec7a95a9dbaab3148d774fcf05648d621bab75		 pdf-font-stream PDF embedded font (sfnt) at offset 0x735F 5512 bytes
font_01_sfnt_off00008612.bin
8893b8b76df7442fed1de57d4c64b7a1235af9e58dd31d3ed3eb6c0ee1f7275a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8612 10392 bytes

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