Malicious PDF — malware analysis report

Static analysis result for SHA-256 ce787fd027102b5a…

MALICIOUS

PDF

70.8 KB Created: 2020-08-13 01:54:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 00b2cdcf49dcb7b5ae3899b3a86d9e99 SHA-1: ba6b0f704b13afea2964cd940c0c2fb870f516fc SHA-256: ce787fd027102b5ad07446c4951079a4823d56981e6a2194d4142bfbe04cbfc8
150 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, including one pointing to a known malicious redirector at 'ttraff.com'. The document body, though heavily obfuscated, also contains this URL and other links to Shopify-hosted PDFs, suggesting a link farm or redirection tactic. The primary goal appears to be directing users to malicious infrastructure through these embedded links.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 3

  • 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.
  • 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=common+english+words+with+telugu+meaning+pdf
    • http://files.vintageracer.net/uploads/1/3/1/3/131397973/8259249.pdf
    • http://files.freeheartranch.com/uploads/1/3/2/3/132303134/xaridube-dowugixodepawo-xopukegivodobu.pdf
    • http://files.angelababby.com/uploads/1/3/0/7/130776483/647210.pdf
    • http://files.custompaintingsbyden.com/uploads/1/3/0/9/130969809/wutevereduta.pdf
    • https://cdn.shopify.com/s/files/1/0431/3631/9639/files/pinkprint_album_download.pdf
    • https://cdn.shopify.com/s/files/1/0435/3844/8548/files/nissan_sentra_2013_manual.pdf
    • https://cdn.shopify.com/s/files/1/0429/6297/6921/files/bagijipibenaduzika.pdf
    • https://cdn.shopify.com/s/files/1/0434/7199/5033/files/jozuremabafolifuwegixisos.pdf
    • https://cdn.shopify.com/s/files/1/0431/7007/0687/files/53054794821.pdf
    • https://cdn.shopify.com/s/files/1/0436/0349/3022/files/781006232.pdf
    • https://cdn.shopify.com/s/files/1/0434/8860/8418/files/barcelona_map_tourist_attractions.pdf
    • https://cdn.shopify.com/s/files/1/0437/6992/1688/files/konewepikewakogajavodo.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/19194700937.pdf
    • https://cdn.shopify.com/s/files/1/0432/6473/7448/files/20721724876.pdf
    • https://cdn.shopify.com/s/files/1/0430/4352/0666/files/41766713245.pdf
    • https://cdn.shopify.com/s/files/1/0436/9642/3080/files/42616739387.pdf
    • https://cdn.shopify.com/s/files/1/0434/3876/8294/files/defibifeponasa.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/

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00008aa7.bin
7da431632a5e988ca1a40438d0ae3f8c719549e0543deb42a9bb53c2fe58ba26
pdf-font-stream PDF embedded font (sfnt) at offset 0x8AA7 5452 bytes
font_01_sfnt_off00009d12.bin
8d0068a9b79638936c82dd982557d7a599b0ede64e4aa75882c5cd488942ca9a
pdf-font-stream PDF embedded font (sfnt) at offset 0x9D12 35092 bytes
font_02_sfnt_off0000e34a.bin
bee395a939202cf0e3ed4d2381ab0f8383b4b3fdf1366bc5d4791b6e2493e44e
pdf-font-stream PDF embedded font (sfnt) at offset 0xE34A 13200 bytes