Malicious PDF — malware analysis report

Static analysis result for SHA-256 e7dfe003499200ec…

MALICIOUS

PDF

53.8 KB Created: 2020-07-29 15:37:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8701812a53a9f527257f678087a6a78f SHA-1: 44a1a1cf320efc2a16748a528f929b3fd4382b07 SHA-256: e7dfe003499200ec53ae46ed360fbbfcaf3747f26c8c2a129b8280682a72ca82
128 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for a malicious redirector link pointing to 'ttraff.com', which is used in a lure to download content. The document body, though heavily obfuscated, contains text related to 'Urdu cooking books free download pdf' and a call-to-action phrase, reinforcing the phishing pretext. The presence of numerous external PDF links, many hosted on Shopify, suggests a link farm designed to obscure the ultimate malicious destination.

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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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.com/pify?keyword=urdu+cooking+books+free+download+pdf
    • http://files.charlesjking.com/uploads/1/3/2/6/132682684/zolesudisakixul.pdf
    • http://files.heavenonearthestates.com/uploads/1/3/0/7/130775232/zitan.pdf
    • http://files.openclosetshops.com/uploads/1/3/2/6/132682110/mewurefejuxig.pdf
    • http://files.provenpurpose.net/uploads/1/3/0/7/130775033/xanaf-xotovelataguji.pdf
    • https://cdn.shopify.com/s/files/1/0433/7709/8913/files/32754424208.pdf
    • https://cdn.shopify.com/s/files/1/0431/4297/1553/files/vakagixexanedirufofepupex.pdf
    • https://cdn.shopify.com/s/files/1/0430/3237/9545/files/nozaximuwaxixofavadujogi.pdf
    • https://cdn.shopify.com/s/files/1/0431/1715/0368/files/23644493168.pdf
    • https://cdn.shopify.com/s/files/1/0433/1097/3083/files/16408459453.pdf
    • https://cdn.shopify.com/s/files/1/0435/5037/6100/files/21694176803.pdf
    • https://cdn.shopify.com/s/files/1/0431/0210/9856/files/sixazedimeleresipifin.pdf
    • https://cdn.shopify.com/s/files/1/0433/8991/1194/files/85953251484.pdf
    • https://cdn.shopify.com/s/files/1/0436/9888/0680/files/lobexaseguganujoj.pdf
    • https://cdn.shopify.com/s/files/1/0431/2340/9057/files/libobidefan.pdf
    • https://cdn.shopify.com/s/files/1/0429/1425/0905/files/72300704445.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/
    • https://cdn.shopify.com/s/files/1

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000075ec.bin
7923c69b7ab60df9080ff3905fb9b276b0074bebfcec79ffdb61451e4e720156
pdf-font-stream PDF embedded font (sfnt) at offset 0x75EC 5412 bytes
font_01_sfnt_off0000886a.bin
c58adeb6a857f34dcf46187a921bb15c4ad6ef537a72c1f434dcd5749ed72982
pdf-font-stream PDF embedded font (sfnt) at offset 0x886A 9864 bytes
font_02_sfnt_off0000aa66.bin
8cfcfee99b4de37df99d238ac35b505d67e76870141fd19a4d26c3b8166ac462
pdf-font-stream PDF embedded font (sfnt) at offset 0xAA66 19164 bytes