Malicious PDF — malware analysis report

Static analysis result for SHA-256 22eb0029dd5afd9a…

MALICIOUS

PDF

44.5 KB Created: 2020-08-17 18:37:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6ebf91d8af72c3ada694ad242b003443 SHA-1: e26afc809ec5ba521f90edae59491262ef0ef2c5 SHA-256: 22eb0029dd5afd9a6b853b5a60f8fd908ccf849c60e84b710d4104d4b188f114
120 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link, specifically pointing to 'https://ttraff.ru/pify?keyword=google+chrome++free+for+xp'. This suggests a social engineering lure to trick users into downloading potentially unwanted software. The document also contains a large number of embedded links, many hosted on shopify.com, which is flagged as a link farm. The document body contains garbled text but includes the target URL, reinforcing the lure.

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=google+chrome++free+for+xp
    • http://dewilo.ibewlocal1289.org/uploads/1/3/1/6/131606758/353082.pdf
    • http://files.courtingkenya.com/uploads/1/3/1/6/131636889/a6e9d1.pdf
    • http://files.professional-tourguides.com/uploads/1/3/2/7/132712251/2153572.pdf
    • https://cdn.shopify.com/s/files/1/0438/0744/1053/files/lexomidogimisu.pdf
    • https://cdn.shopify.com/s/files/1/0429/2375/3635/files/11227079961.pdf
    • https://cdn.shopify.com/s/files/1/0431/5830/6965/files/82839351425.pdf
    • https://cdn.shopify.com/s/files/1/0438/9008/1960/files/kemutidelulekixexetoxole.pdf
    • https://cdn.shopify.com/s/files/1/0432/0336/2973/files/1181925468.pdf
    • https://cdn.shopify.com/s/files/1/0433/4606/7621/files/pugivi.pdf
    • https://cdn.shopify.com/s/files/1/0438/0514/7298/files/black_and_decker_grass_trimmer.pdf
    • https://cdn.shopify.com/s/files/1/0427/9071/5548/files/1502978659.pdf
    • https://cdn.shopify.com/s/files/1/0430/6649/1041/files/jewibumuxanegedaroz.pdf
    • https://cdn.shopify.com/s/files/1/0430/7773/0464/files/clopidogrel_bisulfate_plavix_davis.pdf
    • https://cdn.shopify.com/s/files/1/0435/4444/5079/files/fojex.pdf
    • https://cdn.shopify.com/s/files/1/0430/6547/5229/files/sijebekorat.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_off000063fb.bin
a2f229c5df8812883a69b92ba196d5356d1e8d16b682c69f35448c790760f409		 pdf-font-stream PDF embedded font (sfnt) at offset 0x63FB 4696 bytes
font_01_sfnt_off000073f8.bin
71fce46508df4ea565b0702599b6235c29c8b8246d6be8fb10f55cd8b763594a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x73F8 10296 bytes
font_02_sfnt_off00009734.bin
9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9734 4324 bytes

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