Malicious PDF — malware analysis report

Static analysis result for SHA-256 52e953f92d1dfe98…

MALICIOUS

PDF

45.8 KB Created: 2020-08-09 02:16:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: aea31bb860076d58ce44c404d65668b4 SHA-1: 807aee9fbcef04adf86daf9787143bbe9925733f SHA-256: 52e953f92d1dfe98ebaa15b3f68cea62efaa74b179de8397861586e4dc5e5e07
128 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains a large number of embedded links, many pointing to Shopify domains, but one critical link redirects to a known malicious domain (ttraff.com). The document body, though heavily obfuscated, contains the same URL as the malicious redirector, suggesting it is the primary lure. The presence of a link farm and a malicious redirector indicates an attempt to distribute malware or conduct phishing by directing users to 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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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=neutropenic+fever+guidelines+2020+pdf
    • http://files.soaringtortoiseelectronics.com/uploads/1/3/1/4/131437471/voluxotibi.pdf
    • http://files.tryoungcrew144.com/uploads/1/3/1/0/131071258/8845025.pdf
    • http://files.4dogsfarmrescue.org/uploads/1/3/1/3/131398322/riloji_pilas_dunel_weromoveda.pdf
    • http://files.cirrusskyfarms.com/uploads/1/3/1/0/131070688/7089838.pdf
    • http://files.michellexiao.net/uploads/1/3/1/6/131607346/xugex-xotosuzunixovir-kuvareduxifo-fufetatarifu.pdf
    • https://cdn.shopify.com/s/files/1/0427/5961/8716/files/lijimupurexudajexazukoda.pdf
    • https://cdn.shopify.com/s/files/1/0437/9380/9557/files/nafukawosedakoxula.pdf
    • https://cdn.shopify.com/s/files/1/0431/0486/2374/files/feguzovokomabodev.pdf
    • https://cdn.shopify.com/s/files/1/0428/0382/2755/files/foxovakulelosadisesu.pdf
    • https://cdn.shopify.com/s/files/1/0431/9959/4656/files/hbr_guide_to_project_management_download.pdf
    • https://cdn.shopify.com/s/files/1/0430/7006/2753/files/adjusted_r_squared_interpretation.pdf
    • https://cdn.shopify.com/s/files/1/0433/6818/6015/files/c_programming_malik_7th_edition.pdf
    • https://cdn.shopify.com/s/files/1/0431/5358/8390/files/91098503059.pdf
    • https://cdn.shopify.com/s/files/1/0428/8570/9987/files/dixotapawaxomideli.pdf
    • https://cdn.shopify.com/s/files/1/0429/5340/8675/files/ap_us_history_american_pageant_12th_edition.pdf
    • https://cdn.shopify.com/s/files/1/0436/1856/6306/files/lowusekojotunurabofiduv.pdf
    • https://cdn.shopify.com/s/files/1/0428/6201/8716/files/free_blank_sheet_music_download.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/1/0436/1856/6306/files/lowusekojotunurabofidu

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007453.bin
d26ae73afa4297539356892a9680177b80fb551b7b3050183e24ffc47f13708c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7453 5416 bytes
font_01_sfnt_off000086ec.bin
f59c87680e5b3c0934027e5b27d8042f4e7b10770df6ae8dea317fb8d7175f2d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x86EC 10400 bytes

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