Malicious PDF — malware analysis report

Static analysis result for SHA-256 01505eb57a4ad81a…

MALICIOUS

PDF

50.7 KB Created: 2020-08-24 02:43:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 38f00178ef97b74cbddae4906d5d8d71 SHA-1: 2e959650c06c12e46f51403c1b6dc02f1136feab SHA-256: 01505eb57a4ad81a01de19cbd2dcc694767df85e2e503d6563b24e255b1c9836
174 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains multiple embedded links, with one pointing to a known malicious redirector. The document body, though heavily obfuscated, contains text that suggests a 'courtesy message template' lure. The presence of a link farm and a malicious redirector indicates an attempt to lead the user to a harmful site, likely for phishing or malware distribution.

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
  • 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.cc/pify?keyword=courtesy+message+template
    • http://dudes.pacofalco.com/uploads/1/3/0/8/130874064/1dd8f47d4.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0454/0271/8376/files/hiragana_cheat_sheet.pdf
    • https://cdn.shopify.com/s/files/1/0438/3929/1554/files/os_axiomas_de_zurich.pdf
    • https://cdn.shopify.com/s/files/1/0434/2307/2412/files/32489407787.pdf
    • https://cdn.shopify.com/s/files/1/0429/8234/2815/files/70784608294.pdf
    • https://cdn.shopify.com/s/files/1/0431/0355/1645/files/98096190966.pdf
    • https://cdn.shopify.com/s/files/1/0432/5461/2123/files/fanomoburawokuwojug.pdf
    • https://cdn.shopify.com/s/files/1/0436/5965/7374/files/rekajunulediduka.pdf
    • https://cdn.shopify.com/s/files/1/0430/6305/0394/files/82408895834.pdf
    • https://cdn.shopify.com/s/files/1/0433/2149/1621/files/curse_minecraft_modpack_launcher.pdf
    • https://cdn.shopify.com/s/files/1/0436/3347/5737/files/41505986398.pdf
    • https://cdn.shopify.com/s/files/1/0429/9613/8137/files/70954785175.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007b35.bin
124c41df338a15564a55fc0f8d047a85ffc464502ffccad13108ed2c5a548ad4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7B35 5144 bytes
font_01_sfnt_off00008ca4.bin
42038fd988748cf9ffb81ee7ceabd5cba78ef0a1e773feb9f1e2c266225f0653		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8CA4 2500 bytes
font_02_sfnt_off000097bd.bin
0f6ff5362eb3dbc187b53cdb5c5504a1762b441ac1d3b506b7bf8979bb297a8b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x97BD 11096 bytes

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