Malicious PDF — malware analysis report

Static analysis result for SHA-256 715495c5c722b116…

MALICIOUS

PDF

75.0 KB Created: 2020-09-01 02:22:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 509168f4856626782a041f3d2b85577c SHA-1: 7f02ca27c1ea5d5d9b671984ead04e34589f400f SHA-256: 715495c5c722b116a9b30b8b7edf335c3e0fe64352f663aced126ad6ff06f745
154 Risk Score

Malware Insights

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

The PDF contains a deceptive title and embedded URLs designed to trick users into clicking on malicious links. The primary URL, 'https://ttraff.me/wix?keyword=ethiopian+airline+crash+investigation+report', is identified as a malicious redirector. The document also features a large number of external PDF links, many pointing to benign Shopify domains, suggesting an attempt to obscure the malicious redirector or engage in SEO manipulation for broader reach.

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.me/wix?keyword=ethiopian+airline+crash+investigation+report
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • https://cdn.shopify.com/s/files/1/0432/9907/8304/files/alkaline_herbal_medicine_aqiyl_aniys.pdf
    • https://cdn.shopify.com/s/files/1/0429/8326/0314/files/ghatshila_weather_report.pdf
    • https://cdn.shopify.com/s/files/1/0460/1354/6655/files/california_net_operating_loss_carryback_form.pdf
    • https://cdn.shopify.com/s/files/1/0434/2651/3048/files/31869731644.pdf
    • https://static.usrfiles.com/ugd/b8c837_545d58b1651b46a18cf7f2d7318c0028.pdf
    • https://static.usrfiles.com/ugd/7d1dc9_d93da3ed9ec0403389e7aa4f0c9bdbd0.pdf
    • https://static.usrfiles.com/ugd/71fd01_996c51a93b8b400fa82318b551a4c423.pdf
    • https://static.usrfiles.com/ugd/b8c837_fdbfd45da51b41ff8c33ee0b174a7a53.pdf
    • https://static.usrfiles.com/ugd/7ef0dc_024f373754124847b72a18bd2b2f4e77.pdf
    • https://static.usrfiles.com/ugd/3be3a7_0e26ef361ff242f494d4a7297c2a3fb5.pdf
    • https://static.usrfiles.com/ugd/73c254_fbf87cb1ffc34da4b5ceb027112b2b63.pdf
    • https://static.usrfiles.com/ugd/c8a981_16418c7b8ba943f0ad19e4cd5f4eb5c8.pdf
    • https://static.usrfiles.com/ugd/a76634_b4bbc5a1de7e4c0987b717d7e8d01631.pdf
    • https://static.usrfiles.com/ugd/850f07_22222c8b285143e49f15fce4900839fa.pdf
    • https://static.usrfiles.com/ugd/db93e9_493f01362d3b491485e17f6a80b89a3d.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c350.bin
196c7d41b547b4788944a225599f3bb3c34e28e4174ceed1601ab5ac1680ca87		 pdf-font-stream PDF embedded font (sfnt) at offset 0xC350 6116 bytes
font_01_sfnt_off0000d87a.bin
a7bd774b113ccd47bda42e261ca3c47a0877ec0268c93135fad7014957e734dc		 pdf-font-stream PDF embedded font (sfnt) at offset 0xD87A 5000 bytes
font_02_sfnt_off0000e96e.bin
55307499f46af4f135e9c22e7e739abe9626e00d4ec3eac30ed914d414192bb6		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE96E 11628 bytes
font_03_sfnt_off00010ff9.bin
1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10FF9 4324 bytes

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