Malicious PDF — malware analysis report

Static analysis result for SHA-256 a3e325e86c719915…

MALICIOUS

PDF

53.0 KB Created: 2020-08-26 06:05:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3ab2522993eb938fc7087c338a19c3e4 SHA-1: a198af464819cef2c4da64176997b44cdd22ff08 SHA-256: a3e325e86c719915cf6f6d191c76d86a3a66a6370414bfe0c1dac902a550d7c3
128 Risk Score

Malware Insights

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

The PDF file contains multiple embedded links, with one specifically pointing to a known malicious redirector. The document body, though heavily obfuscated, contains text suggesting a lure for a game download. The presence of a 'download button' heuristic further supports the malicious intent of directing users to external, potentially harmful content.

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.ru/pify?keyword=lemmings+game+download+safe
    • http://files.alamedhirudotherapy.org/uploads/1/3/0/7/130776088/xiwexatovarugife.pdf
    • http://files.jonathanwhite.org/uploads/1/3/0/7/130739180/2720008.pdf
    • https://cdn.shopify.com/s/files/1/0433/1952/5534/files/jiwezeludobadexigosuj.pdf
    • https://cdn.shopify.com/s/files/1/0437/0654/8377/files/97523748043.pdf
    • https://cdn.shopify.com/s/files/1/0427/5719/3895/files/79965869817.pdf
    • https://cdn.shopify.com/s/files/1/0430/4686/3005/files/jajunanejovewogufer.pdf
    • https://cdn.shopify.com/s/files/1/0431/8678/2369/files/1135399960.pdf
    • https://cdn.shopify.com/s/files/1/0433/1077/6473/files/antrenmanlarla_matematik_4._gn.pdf
    • https://cdn.shopify.com/s/files/1/0435/3081/3592/files/31278810687.pdf
    • https://cdn.shopify.com/s/files/1/0438/3349/1606/files/block_websites_firefox_android.pdf
    • https://cdn.shopify.com/s/files/1/0432/8266/1526/files/siemens_ct_scanner.pdf
    • https://cdn.shopify.com/s/files/1/0432/0142/9662/files/8086831953.pdf
    • https://cdn.shopify.com/s/files/1/0432/5530/0249/files/html_align_center.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_off0000927a.bin
d857ea34455b742e775458819b6db3786891dffc255502b5ed86082ecaed68eb		 pdf-font-stream PDF embedded font (sfnt) at offset 0x927A 5164 bytes
font_01_sfnt_off0000a414.bin
c85930e3ee8aa1fef1535f1b1f7a136982112e40269c80fe8505d9b40b8f77e5		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA414 10380 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.