Malicious PDF — malware analysis report

Static analysis result for SHA-256 b80b7913a4a62170…

MALICIOUS

PDF

44.3 KB Created: 2020-07-27 08:55:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 65d83399443df33a698e7609e0e8c0d9 SHA-1: 82198db7da6b439683166ec8c2a817900d307f45 SHA-256: b80b7913a4a62170e4a85a69381e6fd13140e141e4018ecab504fc164d6bf62d
120 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded links, identified as a 'PDF SEO Link Farm'. One of these links points to a known malicious redirector, 'ttraff.cc', which is likely used to obscure the final destination and potentially deliver malware or phishing content. The document body, though heavily obfuscated, contains text related to Android call issues, suggesting a lure to trick users into clicking the malicious links.

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.cc/pify?keyword=android+can%2527+t+answer+incoming+call
    • http://files.heatherleeanndesigns.com/uploads/1/3/1/4/131482884/946513.pdf
    • http://files.reseeworks.com/uploads/1/3/0/7/130739891/banirowirexuzolis.pdf
    • http://files.melissamasonphotography.com/uploads/1/3/1/6/131606174/pimefivanat-bobazalajo-wemilifes.pdf
    • http://files.resonant-bodywork.com/uploads/1/3/1/4/131437930/xalozabajuzo_fazigelidumimit_kesufalurud.pdf
    • https://cdn.shopify.com/s/files/1/0433/3414/0056/files/firexujamesutemizilej.pdf
    • https://cdn.shopify.com/s/files/1/0432/3098/6400/files/lifolafebonolona.pdf
    • https://cdn.shopify.com/s/files/1/0431/4506/8699/files/31452214676.pdf
    • https://cdn.shopify.com/s/files/1/0435/8068/6497/files/satapivepafawipibabu.pdf
    • https://cdn.shopify.com/s/files/1/0431/1616/7328/files/wivipabinezugu.pdf
    • https://cdn.shopify.com/s/files/1/0431/4651/0504/files/85141019318.pdf
    • https://cdn.shopify.com/s/files/1/0435/5417/7185/files/siwat.pdf
    • https://cdn.shopify.com/s/files/1/0434/0744/2072/files/rasudevenugipisuwu.pdf
    • https://cdn.shopify.com/s/files/1/0435/0548/3942/files/3197919542.pdf
    • https://cdn.shopify.com/s/files/1/0432/2073/0011/files/sonuguxatujukas.pdf
    • https://cdn.shopify.com/s/files/1/0431/6394/3067/files/47793323804.pdf
    • https://cdn.shopify.com/s/files/1/0428/5179/5107/files/73067551309.pdf
    • https://cdn.shopify.com/s/files/1/0435/8524/1245/files/98267683929.pdf
    • https://forums.androidcentral.com/showthread.php?t=463326&s=10b7d3eb8d396bdf2d7e8b1fce0dce33
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • https://forums.androidcentral.com/showthread.php?t=463326&s=10b7d3eb8d396bdf2d7e8b1fce0dce33
    • 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/
    • https://cdn.shopify.com/s/files/1/04

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007007.bin
1f04eecb2942926d651f06551ef5f569b65133c17c440eda12009d7ba8f9e854
pdf-font-stream PDF embedded font (sfnt) at offset 0x7007 5164 bytes
font_01_sfnt_off00008187.bin
d5afa14783c76e054dab56c85dff8ea876e6bdd575a80066cbf3ebde2ebc378a
pdf-font-stream PDF embedded font (sfnt) at offset 0x8187 10108 bytes