Malicious PDF — malware analysis report

Static analysis result for SHA-256 49e6977ba02b57b0…

MALICIOUS

PDF

40.5 KB Created: 2020-08-15 07:24:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5cc87a2cca5c3d2b14a21c87ffec9434 SHA-1: 123fb582ec937bd6ce35b043b52e2346abeb7c2a SHA-256: 49e6977ba02b57b09d70c23b5b084bf7e8e841ffa3d812f161893507e77f3070
128 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for a malicious redirector link, pointing to 'https://ttraff.ru/pify?keyword=free+loan+agreement+template+australia'. It also exhibits characteristics of a PDF SEO link farm, with numerous embedded links to PDF files hosted on Shopify. The document body, though heavily obfuscated, contains text related to loan agreements and includes the malicious URL, suggesting a lure to a phishing or malware distribution site. No scripts were extracted from this sample.

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.
  • Fake invoice / payment lure low SE_INVOICE_LURE
    Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
  • 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/pify?keyword=free+loan+agreement+template+australia
    • http://gulupu.oneined.com/uploads/1/3/1/4/131438234/lufuw_jutaturijo_wenukepanipe.pdf
    • http://files.hstriclub.org/uploads/1/3/1/4/131406365/foxabef.pdf
    • http://files.fineanddandyabroad.com/uploads/1/3/1/4/131409009/visuxojovikozob.pdf
    • http://famozus.jaylubordercollies.com/uploads/1/3/1/8/131858530/mixar.pdf
    • https://cdn.shopify.com/s/files/1/0437/3970/9605/files/brittany_perille_free_download.pdf
    • https://cdn.shopify.com/s/files/1/0427/5293/4044/files/statistical_modeling_a_fresh_approach.pdf
    • https://cdn.shopify.com/s/files/1/0430/4492/9690/files/mogaxuvizuke.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/sejil.pdf
    • https://cdn.shopify.com/s/files/1/0438/8601/8712/files/dapobaligigurovogaluzenej.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/nagexonulelaxefirulilona.pdf
    • https://cdn.shopify.com/s/files/1/0431/8530/7805/files/runoxakiviwone.pdf
    • https://cdn.shopify.com/s/files/1/0431/7039/8357/files/8th_grade_history_textbook_creating_america.pdf
    • https://cdn.shopify.com/s/files/1/0432/3373/8911/files/14977445710.pdf
    • https://cdn.shopify.com/s/files/1/0429/9826/8065/files/breast_cancer_book.pdf
    • https://cdn.shopify.com/s/files/1/0431/6997/2384/files/allantoin_in_cosmetics.pdf
    • https://cdn.shopify.com/s/files/1/0430/9925/9031/files/jorelumejifutiwu.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/nexunalazuzifoginiwaboliz.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006279.bin
be646fe02bd6170eec4873e37f1057589752ecde66bc81de59c8bba9ec9e53e4
pdf-font-stream PDF embedded font (sfnt) at offset 0x6279 5092 bytes
font_01_sfnt_off000073b4.bin
244d469eb64546c15d8cdf534aa88c517000f987585150c5442d372624af7590
pdf-font-stream PDF embedded font (sfnt) at offset 0x73B4 9796 bytes