Malicious PDF — malware analysis report

Static analysis result for SHA-256 fd9b1ac84d222343…

MALICIOUS

PDF

49.5 KB Created: 2020-08-17 17:14:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 72e799bf514008cc298f4bbeb5b81850 SHA-1: b1ca78f6aad08a29aab10f62ba54deab47aa933b SHA-256: fd9b1ac84d22234300f6861a36bdb76a7a1df81a9516e6b22ac86fe04a7a7b67
128 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for a malicious redirector link pointing to 'ttraff.com'. The document body, though heavily obfuscated, contains the URL 'https://ttraff.com/pify?keyword=actemra+prescribing+information', suggesting a lure related to medical information. The file also exhibits characteristics of a link farm, with numerous embedded URLs, many hosted on Shopify, likely to obscure the malicious redirector.

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=actemra+prescribing+information
    • http://files.brentcue.com/uploads/1/3/0/7/130740480/6024443.pdf
    • http://files.jamesjordanfoundation.com/uploads/1/3/0/9/130969334/4ea4b9c0.pdf
    • http://mofife.cavecanemcolectioni.com/uploads/1/3/0/7/130775364/lanixawasu.pdf
    • https://cdn.shopify.com/s/files/1/0427/7446/2631/files/ridojifituwidivasadojun.pdf
    • https://cdn.shopify.com/s/files/1/0428/4933/7507/files/rock_tumbler_instruction.pdf
    • https://cdn.shopify.com/s/files/1/0433/6621/9941/files/dimusosixabaverugodafafim.pdf
    • https://cdn.shopify.com/s/files/1/0431/9802/1793/files/99240085777.pdf
    • https://cdn.shopify.com/s/files/1/0433/5019/6392/files/vujug.pdf
    • https://cdn.shopify.com/s/files/1/0432/0670/5312/files/jizizadofaritugi.pdf
    • https://cdn.shopify.com/s/files/1/0431/6656/4520/files/rowakujizigoforimuxabe.pdf
    • https://cdn.shopify.com/s/files/1/0440/8921/3093/files/9850131616.pdf
    • https://cdn.shopify.com/s/files/1/0432/3573/7764/files/car_rental_contract_template_uk.pdf
    • https://cdn.shopify.com/s/files/1/0434/6281/9990/files/becommerce_market_monitor.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/wawufomujemozinabewa.pdf
    • https://cdn.shopify.com/s/files/1/0437/4937/6161/files/86801378072.pdf
    • https://cdn.shopify.com/s/files/1/0448/4520/3618/files/solutions_to_poverty_in_the_philippines.pdf
    • https://cdn.shopify.com/s/files/1/0431/9641/6160/files/nilupazagajokovowade.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_off00007633.bin
af4262d3847b59c9dbc5da006994f1305604f3f5d74a23c3f77d17ee82c202ef
pdf-font-stream PDF embedded font (sfnt) at offset 0x7633 5220 bytes
font_01_sfnt_off000087c0.bin
6da83df15a19278b5636effc32f77b49307c9a314cbca06b9daa5bb2afb41b44
pdf-font-stream PDF embedded font (sfnt) at offset 0x87C0 10076 bytes
font_02_sfnt_off0000aa31.bin
1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361
pdf-font-stream PDF embedded font (sfnt) at offset 0xAA31 4324 bytes