Malicious PDF — malware analysis report

Static analysis result for SHA-256 e321f403a44e3801…

MALICIOUS

PDF

73.0 KB Created: 2020-08-05 11:55:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3e1e334f0511a0b5e6e9dc78ff263cb1 SHA-1: 0507afd23705af731c778acbbcbc04389485b979 SHA-256: e321f403a44e380135534692f567e81ceb6f5bf136b6a84b5550bd369163e420
120 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for a malicious redirector link, pointing to 'https://ttraff.ru/pify?keyword=ali+baba+and+the+40+thieves+book+pdf'. This indicates the document is designed to redirect users to malicious infrastructure. The document body, though heavily obfuscated, contains the same URL, reinforcing the lure. The file also exhibits characteristics of a link farm, suggesting a broad distribution attempt.

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.ru/pify?keyword=ali+baba+and+the+40+thieves+book+pdf
    • http://files.piercingcrossfit.com/uploads/1/3/1/8/131856191/eeab3.pdf
    • http://files.castlebergcommunities.com/uploads/1/3/0/7/130739112/goxiwoduwabanesinal.pdf
    • http://files.gregdwyerart.com/uploads/1/3/1/3/131379894/regofe.pdf
    • http://gepijiwe.youngachieversokc.org/uploads/1/3/0/8/130874317/xajurupadipovuj_ravuzaforolel_sinuramuv.pdf
    • http://files.genegousiecoaching.com/uploads/1/3/0/7/130775436/momog_buvekimifaxew.pdf
    • https://cdn.shopify.com/s/files/1/0436/8403/6761/files/pilemati.pdf
    • https://cdn.shopify.com/s/files/1/0430/5649/6791/files/zuguxemudipepi.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/kividerinogofigizunewif.pdf
    • https://cdn.shopify.com/s/files/1/0429/2883/2675/files/jikukexowonomanepuminaxaw.pdf
    • https://cdn.shopify.com/s/files/1/0432/6916/1110/files/nakupuzevurejokitu.pdf
    • https://cdn.shopify.com/s/files/1/0433/0671/3253/files/60967630872.pdf
    • https://cdn.shopify.com/s/files/1/0438/9008/1944/files/6088692751.pdf
    • https://cdn.shopify.com/s/files/1/0438/1461/7250/files/mirro_pressure_canner.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/livoxigugefeguvon.pdf
    • https://cdn.shopify.com/s/files/1/0431/8806/0321/files/kenmore_elite_dryer_manual.pdf
    • https://cdn.shopify.com/s/files/1/0434/0776/9750/files/sumuwotijajuvotutekosuso.pdf
    • https://cdn.shopify.com/s/files/1/0431/6761/3087/files/43155561976.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/1/0436/8403/6761/files/pilema

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e232.bin
ce45e1d62fe108f3a40c470ae7fbe57bc0c3968412a4582e8ac57b8feb880532
pdf-font-stream PDF embedded font (sfnt) at offset 0xE232 5516 bytes
font_01_sfnt_off0000f4f4.bin
0934340415fa4bf165e2be008f04a726750544205d7836c7a3e46fab2fb38b31
pdf-font-stream PDF embedded font (sfnt) at offset 0xF4F4 9836 bytes