Malicious PDF — malware analysis report

Static analysis result for SHA-256 fd9b77fea5651c14…

MALICIOUS

PDF

42.7 KB Created: 2020-08-16 19:19:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8501b82472b9ba988b9886dc57f37184 SHA-1: c4684ecc5227f5977fedadb785abf2ce72f490ed SHA-256: fd9b77fea5651c149042a71855dce86d07d2d3acbebeeaa96365725ae2a66426
120 Risk Score

Malware Insights

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

The PDF file contains a link farm and a malicious redirector URL, indicating an attempt to direct users to harmful content. The document body, though heavily obfuscated, contains text suggesting a lure for 'Metronome for android phone'. The primary malicious URL identified is ttraff.cc, which redirects to further content. The presence of numerous PDF links suggests a SEO-based distribution tactic.

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=metronome+for+android+phone
    • http://files.listerpartyrental.com/uploads/1/3/1/4/131482892/1070805.pdf
    • http://files.litterpreventionprogram.com/uploads/1/3/1/3/131383510/gowubomikovujug-wofiliwanezumuj-rugali-fimijameju.pdf
    • https://cdn.shopify.com/s/files/1/0431/6105/9477/files/72058194146.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/wexidemunuviviradepinitim.pdf
    • https://cdn.shopify.com/s/files/1/0432/3698/2952/files/baximenogusoxafopilosada.pdf
    • https://cdn.shopify.com/s/files/1/0427/4218/6150/files/giwunojur.pdf
    • https://cdn.shopify.com/s/files/1/0438/3100/1250/files/farsi_ki_pehli_kitab_sharh_download.pdf
    • https://cdn.shopify.com/s/files/1/0432/9714/4990/files/nonujijo.pdf
    • https://cdn.shopify.com/s/files/1/0434/9978/2309/files/304014130.pdf
    • https://cdn.shopify.com/s/files/1/0432/7702/5446/files/89018441459.pdf
    • https://cdn.shopify.com/s/files/1/0430/5892/1621/files/biridebanazelirozan.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/17810153535.pdf
    • https://cdn.shopify.com/s/files/1/0434/3493/4429/files/3293979790.pdf
    • https://cdn.shopify.com/s/files/1/0427/5562/1031/files/putonijigifitekil.pdf
    • https://cdn.shopify.com/s/files/1/0431/9857/8848/files/nosunuwirolidi.pdf
    • https://cdn.shopify.com/s/files/1/0427/8901/1612/files/lasuwivujabepodaja.pdf
    • https://cdn.shopify.com/s/files/1/0433/1008/8360/files/57673474481.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_off0000675b.bin
0a9d1e6b99f4a4ff7452785f6c1bb031f17c6f3e8322ebae396eaddc4860843e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x675B 5076 bytes
font_01_sfnt_off00007879.bin
b6af5f37b547ebd74be1be812ff7c0ebaec1fd770d86401080c33d1a41007a31		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7879 10816 bytes

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