Malicious PDF — malware analysis report

Static analysis result for SHA-256 24aaee2fe3a6f50d…

MALICIOUS

PDF

46.1 KB Created: 2020-08-19 17:50:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 47da0e8e6e0ae051e8ba20338a1f8223 SHA-1: 02ee4b521cc40e7f02948d0c21ecb6df59159676 SHA-256: 24aaee2fe3a6f50d642ab7eba5e1ef6ae8b305c4fb617587103f2d538ebafac5
120 Risk Score

Malware Insights

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

The PDF contains a link that redirects to a malicious URL, disguised as an 'Ikea bed sheet size guide'. This is further supported by the 'PDF_MALICIOUS_REDIRECTOR_LINK' and 'PDF_SEO_LINK_FARM' heuristics, indicating a common lure to redirect users to potentially harmful content. The document body itself is heavily obfuscated but contains the lure text and the malicious URL.

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.com/pify?keyword=ikea+bed+sheet+size+guide
    • http://files.thebluenoteringos.com/uploads/1/3/0/7/130776499/dijop.pdf
    • http://files.carboanalytics.com/uploads/1/3/1/4/131437859/529a6d6.pdf
    • http://files.christianjzanetich.com/uploads/1/3/2/7/132712099/gevagiretokipuzonu.pdf
    • http://mikuvixa.amjetaviation.com/uploads/1/3/1/3/131380600/3169545.pdf
    • https://cdn.shopify.com/s/files/1/0434/9722/6402/files/jibegivevofigikaweviref.pdf
    • https://cdn.shopify.com/s/files/1/0428/5313/8588/files/xetusifegozuzovu.pdf
    • https://cdn.shopify.com/s/files/1/0434/8477/4552/files/7657384048.pdf
    • https://cdn.shopify.com/s/files/1/0430/8788/8545/files/datojerivomopepiwivubi.pdf
    • https://cdn.shopify.com/s/files/1/0437/9849/5389/files/wigonifopuzituzalowijola.pdf
    • https://cdn.shopify.com/s/files/1/0431/0378/1015/files/rabaxugogesu.pdf
    • https://cdn.shopify.com/s/files/1/0434/0305/1175/files/april_2020_current_affairs_ibps_guide.pdf
    • https://cdn.shopify.com/s/files/1/0429/8955/1770/files/bezalo.pdf
    • https://cdn.shopify.com/s/files/1/0432/0811/4340/files/laruzurorixubipujezuji.pdf
    • https://cdn.shopify.com/s/files/1/0430/7940/1632/files/79863814387.pdf
    • https://cdn.shopify.com/s/files/1/0433/7228/2008/files/49180950746.pdf
    • https://cdn.shopify.com/s/files/1/0437/7821/1991/files/8418710978.pdf
    • https://cdn.shopify.com/s/files/1/0429/0697/6422/files/zugexaxezuwi.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_off0000679a.bin
a522eddc6ae881a290a37ad463790c41ca6ff3ab9ef55e1385e94e51f5889f47
pdf-font-stream PDF embedded font (sfnt) at offset 0x679A 4816 bytes
font_01_sfnt_off00007807.bin
9ff6890044a3d618d2a18017638feb2f7063ba84cddb24f89f4313f973349c8e
pdf-font-stream PDF embedded font (sfnt) at offset 0x7807 10848 bytes
font_02_sfnt_off00009d01.bin
ce7e2e230a41ba6fc2d7d2240890c8289d67876d84a3d076d67c0b48111c8230
pdf-font-stream PDF embedded font (sfnt) at offset 0x9D01 4324 bytes