Malicious PDF — malware analysis report

Static analysis result for SHA-256 58d963abda49c745…

MALICIOUS

PDF

49.5 KB Created: 2020-08-12 05:18:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 60ab00429f5e9127b04bb4377476dd7c SHA-1: c31432ca1f27822a64c031e6310df1bb067757a5 SHA-256: 58d963abda49c745b68026e756ec9330b57bae917fc81b603ef90aa20063e076
120 Risk Score

Malware Insights

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

The PDF document contains a large number of embedded links, many of which point to benign Shopify domains, but one critical link directs to a known malicious redirector at 'ttraff.com'. The document body, though heavily obfuscated, contains the text 'Dodge durango service manual pdf' and the malicious URL, suggesting a lure to trick users into clicking the link. The presence of a malicious redirector indicates an attempt to lead the user to a further stage of attack.

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/wb?keyword=dodge%20durango%20service%20manual%20pdf
    • http://files.thegraphicbrand.com/uploads/1/3/1/4/131482823/2706211.pdf
    • http://files.quietcovetravel.net/uploads/1/3/0/9/130969999/c4c11.pdf
    • http://mibor.cjx2graphics.com/uploads/1/3/1/1/131163635/jazifopinejapo.pdf
    • https://cdn.shopify.com/s/files/1/0432/6454/0835/files/disokirobusaxiwupitefipo.pdf
    • https://cdn.shopify.com/s/files/1/0439/6669/3534/files/93207581284.pdf
    • https://cdn.shopify.com/s/files/1/0432/3383/7224/files/revenue_recognition_ind_as.pdf
    • https://cdn.shopify.com/s/files/1/0439/4388/7016/files/lithium_ion_battery_construction_and_working.pdf
    • https://cdn.shopify.com/s/files/1/0439/8029/2254/files/multivariate_student_t_distribution.pdf
    • https://cdn.shopify.com/s/files/1/0438/4302/7106/files/xenophage_quest_steps.pdf
    • https://cdn.shopify.com/s/files/1/0435/3887/4532/files/rubber_band_bracelet_instructions.pdf
    • https://cdn.shopify.com/s/files/1/0431/3153/5522/files/local_email_server.pdf
    • https://cdn.shopify.com/s/files/1/0430/7540/3936/files/41822849980.pdf
    • https://cdn.shopify.com/s/files/1/0435/2750/4024/files/judik.pdf
    • https://cdn.shopify.com/s/files/1/0434/0164/2135/files/encyclopedia_of_the_dead_sea_scrolls.pdf
    • https://cdn.shopify.com/s/files/1/0427/7963/9967/files/15260491111.pdf
    • https://cdn.shopify.com/s/files/1/0438/0481/9613/files/java_comparing_strings.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000082b2.bin
b2fa08da58c4cb9aad1de0aad10d15f13d8b7c61b19d1405ed1bc556896b1a10		 pdf-font-stream PDF embedded font (sfnt) at offset 0x82B2 5532 bytes
font_01_sfnt_off0000957f.bin
da1febcb65882c32b8ad306d8f56cea6bcff384e130af39f2b6482b9913e14f7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x957F 10536 bytes

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