Malicious PDF — malware analysis report

Static analysis result for SHA-256 b2e3f45bb262e5df…

MALICIOUS

PDF

61.2 KB Created: 2020-08-10 01:48:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: aaf88a997f32e83fb3fcce7d5cd974fe SHA-1: a13dccdc7f0bcbf61eab5074d57b8704fb99b4fb SHA-256: b2e3f45bb262e5df515504295f3f95d1d380e547358a21921c590599c67f0e1a
150 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link, pointing to `https://ttraff.cc/pify?keyword=addams+family+musical+pulled+sheet+music+pdf`. This URL is presented within the document body, suggesting a social engineering lure. The document also contains a PDF link farm heuristic, indicating a potential SEO poisoning or spamming campaign. The ML classifier strongly flags this PDF as malicious. No scripts were extracted from this sample.

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.cc/pify?keyword=addams+family+musical+pulled+sheet+music+pdf
    • http://files.davidhahnonline.com/uploads/1/3/1/1/131164067/rasizufen.pdf
    • http://govonedi.chongsenggroup.com/uploads/1/3/2/3/132303382/vutewalitarividuwiju.pdf
    • http://files.thelashfamily.com/uploads/1/3/0/7/130776483/17aefed.pdf
    • http://files.whitechocolatephotography.com/uploads/1/3/1/4/131454116/vozaxilag_pavunerumiraka.pdf
    • http://jizuxaxu.waukeshawestcheer.com/uploads/1/3/0/8/130873851/perafubozubuxubo.pdf
    • https://cdn.shopify.com/s/files/1/0428/5648/0935/files/zijaw.pdf
    • https://cdn.shopify.com/s/files/1/0435/9428/5218/files/batezaxopezanuzid.pdf
    • https://cdn.shopify.com/s/files/1/0428/5222/1084/files/blood_pressure_scale.pdf
    • https://cdn.shopify.com/s/files/1/0437/8735/4270/files/mudurulopipitidokeve.pdf
    • https://cdn.shopify.com/s/files/1/0430/8366/1461/files/pemexojesaxotulu.pdf
    • https://cdn.shopify.com/s/files/1/0431/5476/8021/files/sobuwex.pdf
    • https://cdn.shopify.com/s/files/1/0431/3671/2861/files/92393755121.pdf
    • https://cdn.shopify.com/s/files/1/0438/1927/0306/files/menavipubodina.pdf
    • https://cdn.shopify.com/s/files/1/0434/5033/5384/files/ladevejupa.pdf
    • https://cdn.shopify.com/s/files/1/0430/0364/2007/files/ahsan_ul_fatawa.pdf
    • https://cdn.shopify.com/s/files/1/0430/6924/3549/files/39485939398.pdf
    • https://cdn.shopify.com/s/files/1/0430/8343/2096/files/3807962835.pdf
    • https://cdn.shopify.com/s/files/1/0433/9888/9635/files/tomatoz.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_off00009c54.bin
af5f62bb84b25b0dfbd5ee00f73d2cb67bf60797d3edf7988b61a8a58f4e57f9
pdf-font-stream PDF embedded font (sfnt) at offset 0x9C54 5392 bytes
font_01_sfnt_off0000ae9a.bin
fde00b41b242ea39a4f0f15151fcb81123dfe4164930226dc070b8e42c793c95
pdf-font-stream PDF embedded font (sfnt) at offset 0xAE9A 10208 bytes
font_02_sfnt_off0000d19b.bin
f6e0f4a25f18a144688c6b7f40519a5efc98c72643b9054f89526e396d9b459d
pdf-font-stream PDF embedded font (sfnt) at offset 0xD19B 16144 bytes