Malicious PDF — malware analysis report

Static analysis result for SHA-256 d985afb179b9049b…

MALICIOUS

PDF

43.8 KB Created: 2020-08-29 09:11:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7c792f9641f45ade36e223d2473d5c01 SHA-1: aa99bd2337e73393d181a492624842e4385b0069 SHA-256: d985afb179b9049b018c50e55976130b4b6ccf7b107d6ef6cdd80d5305c22a7a
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a prominent link disguised as a lure for free software activation codes. This link directs to a known malicious redirector, indicating a phishing or malware distribution attempt. The PDF also hosts a large number of external links, many pointing to Shopify, which is characteristic of SEO link farm abuse to mask malicious activity. No scripts were extracted from this sample.

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.ru/wix?keyword=tune+sweeper+activation+code+free
    • https://cdn.shopify.com/s/files/1/0430/1009/7313/files/carbide_insert_chart.pdf
    • https://cdn.shopify.com/s/files/1/0437/6982/3383/files/novixexefikipuxexixiguv.pdf
    • https://cdn.shopify.com/s/files/1/0438/0193/6033/files/ansi_sql_oracle_tutorial.pdf
    • https://static.usrfiles.com/ugd/b8c837_5167c9114e9049b4a8e69f9a70e1bfdd.pdf
    • https://cdn.shopify.com/s/files/1/0434/2133/5702/files/vasabidib.pdf
    • https://cdn.shopify.com/s/files/1/0437/6651/3818/files/46987220670.pdf
    • https://cdn.shopify.com/s/files/1/0434/9542/4165/files/vovebojaxisitokiwediki.pdf
    • https://cdn.shopify.com/s/files/1/0434/0878/5562/files/administrao_da_produo_slack_download.pdf
    • https://cdn.shopify.com/s/files/1/0437/9086/0449/files/white_platform_sandals_uk.pdf
    • https://cdn.shopify.com/s/files/1/0440/0922/6398/files/medieval_total_war_2_factions_guide.pdf
    • https://cdn.shopify.com/s/files/1/0435/6472/8483/files/54316667362.pdf
    • https://cdn.shopify.com/s/files/1/0433/7011/9318/files/water_absorption_of_concrete.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_off00005c47.bin
3bae842de9e9205b1e1dfd65067e2355a31fdb6ae9f6a24f8fd0607e8f218069		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5C47 5100 bytes
font_01_sfnt_off00006db8.bin
00db32bd0ca373a75b35bd714d6b82c00aa06253cad89d2f88aec76777a860d2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6DB8 12388 bytes
font_02_sfnt_off00009488.bin
05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9488 4324 bytes

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