Malicious PDF — malware analysis report

Static analysis result for SHA-256 71175334a13f8ca4…

MALICIOUS

PDF

47.4 KB Created: 2020-08-31 13:23:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: e413c07fa00f8f6a6be0636bbb0fdbfd SHA-1: 07e40eb0136688fba7ac8fcf96ec3dd8a39ed7ff SHA-256: 71175334a13f8ca4313d3caa9bce509fda2987ee8b9497b23fae54097caba307
154 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for PDF_MALICIOUS_REDIRECTOR_LINK, indicating it directs users to malicious infrastructure. The embedded URL 'https://ttraff.me/wix?keyword=halo+online+dedicated+server' is likely part of a phishing or scam campaign. Although no scripts were explicitly extracted, the PDF structure and embedded links suggest an attempt to redirect users to malicious content, potentially for further exploitation or credential harvesting.

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=halo+online+dedicated+server
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • https://static.usrfiles.com/ugd/822ecd_df0613a258b143368bc8fb5ec2e86cac.pdf
    • https://static.usrfiles.com/ugd/cbe7f7_66818a92d0a74e51a8ede93cebba542f.pdf
    • https://static.usrfiles.com/ugd/b8c837_4133d9c88ac0455da2f278a27679651d.pdf
    • https://static.usrfiles.com/ugd/599f1c_869501fdf8564bb9a252c9c700ad6191.pdf
    • https://static.usrfiles.com/ugd/77941b_303d4035adca40039cfb7b2ca7ef3f26.pdf
    • https://cdn.shopify.com/s/files/1/0431/4942/6839/files/gexabefop.pdf
    • https://cdn.shopify.com/s/files/1/0430/6901/4165/files/bulleh_shah_books.pdf
    • https://cdn.shopify.com/s/files/1/0437/8155/4325/files/austria_visa_information_turkey.pdf
    • https://cdn.shopify.com/s/files/1/0430/9922/6279/files/jogugepixebusewuwok.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/96226605796.pdf
    • https://cdn.shopify.com/s/files/1/0434/4188/1254/files/pdf_to_jpg_low_size.pdf
    • https://cdn.shopify.com/s/files/1/0435/6666/1791/files/dual_boot_android.pdf
    • https://cdn.shopify.com/s/files/1/0431/3694/2234/files/pixobowiz.pdf
    • https://cdn.shopify.com/s/files/1/0430/7153/7301/files/10_medicinal_plants_and_their_uses.pdf
    • https://cdn.shopify.com/s/files/1/0431/6305/8340/files/pdf_editor_bookmark.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_off000068f1.bin
dd6f8aa586ec90d37f1f4067ec5b89c4f0d89fbc308a678818b01fa4c8973f69
pdf-font-stream PDF embedded font (sfnt) at offset 0x68F1 4740 bytes
font_01_sfnt_off00007910.bin
f4bc7f1c3f22088ea26d0a3a69ba8557df8ec6d256e2fd45a4cd4515829d96cf
pdf-font-stream PDF embedded font (sfnt) at offset 0x7910 12900 bytes
font_02_sfnt_off0000a27c.bin
1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e
pdf-font-stream PDF embedded font (sfnt) at offset 0xA27C 4324 bytes