Malicious PDF — malware analysis report

Static analysis result for SHA-256 fbfa3e123ad44749…

MALICIOUS

PDF

43.8 KB Created: 2020-08-21 21:08:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 44e080ad06fea0742a16352bf22ec1fd SHA-1: 13367c556389fab50df5320712524a009dfdb6a0 SHA-256: fbfa3e123ad447498cf96a7093b94298c83f34affd24534f3cccddd3d93cd414
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to Shopify domains hosting other PDFs, indicating a link farm. One critical heuristic identified a link to a known malicious redirector at 'https://ttraff.ru/pify?keyword=bolne+wala+mike++karna+hai'. The document body contains garbled text and the same redirector URL, suggesting the primary purpose is to direct users to malicious infrastructure. No scripts were extracted, limiting the analysis of further stages.

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=bolne+wala+mike++karna+hai
    • http://bavuli.personalpilatesma.com/uploads/1/3/0/7/130739235/d91eb7bf6b.pdf
    • http://nurufe.petesenoffphotographics.com/uploads/1/3/1/4/131408899/belawaseman.pdf
    • https://cdn.shopify.com/s/files/1/0428/5592/3878/files/xejojanofunomeneged.pdf
    • https://cdn.shopify.com/s/files/1/0435/8651/9197/files/energy_income_partners_performance.pdf
    • https://cdn.shopify.com/s/files/1/0429/9928/3863/files/dakebawobu.pdf
    • https://cdn.shopify.com/s/files/1/0450/4797/1990/files/apocalypse_rising_scripts.pdf
    • https://cdn.shopify.com/s/files/1/0430/9948/8410/files/berulavijabejomig.pdf
    • https://cdn.shopify.com/s/files/1/0428/8974/0441/files/68543951908.pdf
    • https://cdn.shopify.com/s/files/1/0435/0813/8150/files/43891858290.pdf
    • https://cdn.shopify.com/s/files/1/0436/8692/0347/files/bedovopen.pdf
    • https://cdn.shopify.com/s/files/1/0441/2253/8136/files/bsnl_up_east_prepaid_tariff_plans.pdf
    • https://cdn.shopify.com/s/files/1/0438/9833/9496/files/fomubejaror.pdf
    • https://cdn.shopify.com/s/files/1/0465/3291/9446/files/jaxasagesenuwovo.pdf
    • https://cdn.shopify.com/s/files/1/0435/4270/8378/files/hablar_conjugation_in_yo_form.pdf
    • https://cdn.shopify.com/s/files/1/0429/3771/2806/files/suvuz.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_off00005a91.bin
8b07a7059c887635dd41ab3a84f303c30c0733ab6026438dfc3ed7623fc7dbb7
pdf-font-stream PDF embedded font (sfnt) at offset 0x5A91 4952 bytes
font_01_sfnt_off00006b4b.bin
414534ba1c5b2579d94d7df11b11344a11fef1726e4e2b11ccf9cfbc3ec5360d
pdf-font-stream PDF embedded font (sfnt) at offset 0x6B4B 10100 bytes
font_02_sfnt_off00008e03.bin
9559dd1bd908241551916101fda3d445a26f5c4b506a1423f23393456f9d5940
pdf-font-stream PDF embedded font (sfnt) at offset 0x8E03 16036 bytes