Malicious PDF — malware analysis report

Static analysis result for SHA-256 bb21e591cebf294f…

MALICIOUS

PDF

45.4 KB Created: 2020-08-01 06:30:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 66c097f8611621d1e4874a7a60607b60 SHA-1: f529ea45e07d5f9e808cc2c42624864c4c12e2b0 SHA-256: bb21e591cebf294ff701aa04bf8d55d3451d62709a8e670129fe72536f75fb02
120 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many pointing to Shopify domains, but one critical link directs to a known malicious redirector at ttraff.ru. The document body text, though partially corrupted, includes the phrase '2001 chevy malibu repair manual pdf', suggesting a lure to trick users into clicking the malicious link. The primary attack pattern involves redirecting users to malicious infrastructure under the guise of providing a repair manual.

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=2001+chevy+malibu+repair+manual+pdf
    • http://files.kmartialarts.com/uploads/1/3/0/8/130813645/221cf.pdf
    • http://files.raccooncreekapts.com/uploads/1/3/0/9/130969220/7042256.pdf
    • http://files.drawingonmusic.com/uploads/1/3/1/0/131070044/mupesibudunug-womexezaluzo.pdf
    • http://files.ttmgfoods.com/uploads/1/3/1/4/131406736/6aba4fa2853.pdf
    • http://files.sunstudiohaidagwaii.com/uploads/1/3/0/7/130740490/cc998.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/56317886700.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/golalebilafofuzugetuvi.pdf
    • https://cdn.shopify.com/s/files/1/0430/6308/3170/files/33359719012.pdf
    • https://cdn.shopify.com/s/files/1/0428/5346/6271/files/27979419263.pdf
    • https://cdn.shopify.com/s/files/1/0430/3552/5282/files/98031600612.pdf
    • https://cdn.shopify.com/s/files/1/0429/1543/0559/files/befebejabozaga.pdf
    • https://cdn.shopify.com/s/files/1/0434/4456/8220/files/rakokowegopobu.pdf
    • https://cdn.shopify.com/s/files/1/0431/6463/1195/files/sozixatiregaweg.pdf
    • https://cdn.shopify.com/s/files/1/0430/0655/8359/files/pitikur.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/21533622499.pdf
    • https://cdn.shopify.com/s/files/1/0431/0489/5143/files/72192535044.pdf
    • https://cdn.shopify.com/s/files/1/0433/0595/9574/files/bifejefudifugemotowula.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_off000065ba.bin
76893444cc7044ecb44f1581a777158bd1b68dcddf209f9b54b8b26f1da10aeb
pdf-font-stream PDF embedded font (sfnt) at offset 0x65BA 5440 bytes
font_01_sfnt_off00007802.bin
78899ead8f3248f266903373beb6c4833c4463952b48fa7b509ba47ebedebc46
pdf-font-stream PDF embedded font (sfnt) at offset 0x7802 9996 bytes
font_02_sfnt_off00009a40.bin
ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3
pdf-font-stream PDF embedded font (sfnt) at offset 0x9A40 4324 bytes