Malicious PDF — malware analysis report

Static analysis result for SHA-256 541fd673b48a9ede…

MALICIOUS

PDF

44.3 KB Created: 2020-08-14 08:41:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 042665f1a57371f8e14eb42f8a75bdad SHA-1: 38674c62645b0cb2cfc213bda66545978b8f614c SHA-256: 541fd673b48a9edeccb844456d465312b45386844d031a1cb79b529b2dfd256f
160 Risk Score

Malware Insights

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

The PDF contains a mass of external links, including one to a known malicious redirector, and is flagged as an advance-fee scam lure. The document body, though heavily obfuscated, contains text related to 'stock market trading platforms' and a URL that appears to be part of the scam. The primary intent is to trick the user into clicking the malicious link, likely leading to a phishing or malware download site.

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.
  • Advance-fee lottery/parcel scam lure high SE_ADVANCE_FEE_SCAM_LURE
    Document contains lottery/beneficiary or prize language together with large-value draft/funds wording and parcel/courier delivery requirements. This is a classic advance-fee fraud document shape.
  • 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=stock+market+trading+platforms
    • http://files.sunshine-learning.com/uploads/1/3/1/3/131398075/lotenokilinaw-duruz-wokamuvigidi-sowijamapal.pdf
    • http://files.laurencedeadionneart.com/uploads/1/3/1/6/131636589/1dde2d.pdf
    • http://files.frenchquartersalon.com/uploads/1/3/1/4/131453595/teradatesi-vagilutuzajikid-fatedufe-nalafegivepipuv.pdf
    • http://vozomu.thebellevie.com/uploads/1/3/0/7/130739197/8574598.pdf
    • https://cdn.shopify.com/s/files/1/0432/8649/5396/files/vajubujibodifisu.pdf
    • https://cdn.shopify.com/s/files/1/0434/8503/6706/files/kalender_2020_sterreich.pdf
    • https://cdn.shopify.com/s/files/1/0438/4971/1781/files/berezina_tesson.pdf
    • https://cdn.shopify.com/s/files/1/0432/6051/0376/files/34399998108.pdf
    • https://cdn.shopify.com/s/files/1/0431/2878/3002/files/defasuwuzovizefigel.pdf
    • https://cdn.shopify.com/s/files/1/0437/2480/0154/files/retavirupago.pdf
    • https://cdn.shopify.com/s/files/1/0431/9703/8756/files/61910202582.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/kefemomorevogik.pdf
    • https://cdn.shopify.com/s/files/1/0433/1326/6846/files/rumasunibunebis.pdf
    • https://cdn.shopify.com/s/files/1/0434/3152/6557/files/rasifixaduvipimu.pdf
    • https://cdn.shopify.com/s/files/1/0431/7075/8816/files/benusarevu.pdf
    • https://cdn.shopify.com/s/files/1/0438/2982/1602/files/ganesh_atharvashirsha_lyrics_in_marathi.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_off00006d86.bin
72fb6c333552ead5fe3a8c68be557e58b56226a22de4fe0622397018427617d4
pdf-font-stream PDF embedded font (sfnt) at offset 0x6D86 5640 bytes
font_01_sfnt_off00008095.bin
30b401a66675412a4f5ddb1e30f8d46c0d49af7b3874277513dff48349e93842
pdf-font-stream PDF embedded font (sfnt) at offset 0x8095 10520 bytes