Malicious PDF — malware analysis report

Static analysis result for SHA-256 a14c7dbd8704c592…

MALICIOUS

PDF

38.8 KB Created: 2020-08-24 22:59:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 01275515aa6fa7dff6b09ee106ddcf9b SHA-1: 92f5507007f135907a564209df9bfc671d606417 SHA-256: a14c7dbd8704c59260a40841dd774c00c094bebccffe23987e04f67fa19be58d
150 Risk Score

Malware Insights

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

The PDF file exhibits characteristics of a link farm, embedding numerous external links. One of these links, 'https://ttraff.com/pify?keyword=bhairava+geetha+telugu+full+movie', is identified as a malicious redirector. The ML classifier also flagged this PDF with high confidence. The presence of a large number of links, including a known malicious redirector, strongly suggests an attempt to lure users to malicious sites.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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.com/pify?keyword=bhairava+geetha+telugu+full+movie
    • http://fagimora.fashion-tights.net/uploads/1/3/0/8/130874474/jipowisamekel-bebadewuz-kivemexabupew-pugadiba.pdf
    • http://maliv.biblerapsnation.com/uploads/1/3/1/6/131606968/jetaganesusasexa.pdf
    • https://cdn.shopify.com/s/files/1/0435/2881/4746/files/gofit.pdf
    • https://cdn.shopify.com/s/files/1/0438/0524/5597/files/cash_flow_statement_questions_and_answers.pdf
    • https://cdn.shopify.com/s/files/1/0431/2032/8865/files/kiwenekajerilutovaji.pdf
    • https://cdn.shopify.com/s/files/1/0437/8532/2658/files/animated_wallpaper_for_android_rain.pdf
    • https://cdn.shopify.com/s/files/1/0430/5115/5618/files/dobuvatagikagizikuwup.pdf
    • https://cdn.shopify.com/s/files/1/0431/8763/4338/files/xefovofazek.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/pejuzesuloroxutebed.pdf
    • https://cdn.shopify.com/s/files/1/0432/1378/3199/files/already_yet_just_ever_never_exercises.pdf
    • https://cdn.shopify.com/s/files/1/0429/7503/5541/files/50757574494.pdf
    • https://cdn.shopify.com/s/files/1/0440/5785/4102/files/list_of_world_countries_and_capitals_by_continent.pdf
    • https://cdn.shopify.com/s/files/1/0427/5961/8716/files/xewalijifudofimonale.pdf
    • https://cdn.shopify.com/s/files/1/0429/6713/8460/files/conceptual_framework_input_process_output_template.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004dd4.bin
ca61f126d054d97221eec8737f9b7ee3afc00675859218ef7064e73cb11480db
pdf-font-stream PDF embedded font (sfnt) at offset 0x4DD4 4888 bytes
font_01_sfnt_off00005e85.bin
12da528a609ed1e7cc54ea6c45eb0cc69aacf92e558adeaf12696824876f7355
pdf-font-stream PDF embedded font (sfnt) at offset 0x5E85 9848 bytes
font_02_sfnt_off00008049.bin
0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333
pdf-font-stream PDF embedded font (sfnt) at offset 0x8049 4324 bytes