Malicious PDF — malware analysis report

Static analysis result for SHA-256 35cfbfaea54518e2…

MALICIOUS

PDF

72.1 KB Created: 2020-08-08 05:04:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 50e7bb1103c7dbcd049993e22c468365 SHA-1: 37643c1fa00568020a54c87ec3b9791207ceab89 SHA-256: 35cfbfaea54518e2f87d11d1deb706fd0ebf05bf40e01f9b7cbfd0fff47881f0
120 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.cc/pify?keyword=aiou+admission+form+pdf+2020'. This URL is presented within the document body, disguised as an admission form. The PDF also contains a large number of external links, many hosted on Shopify, which is flagged as a link farm. The primary intent appears to be redirecting the user to malicious infrastructure.

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.cc/pify?keyword=aiou+admission+form+pdf+2020
    • http://files.offmyeasel.com/uploads/1/3/1/3/131379268/mumosoriza.pdf
    • http://files.mollypelletieryoga.com/uploads/1/3/1/1/131164573/nutojoka.pdf
    • http://files.grindrsuccess.net/uploads/1/3/1/6/131606630/4668998.pdf
    • http://bagux.ardingtonschoolofcrafts.com/uploads/1/3/2/3/132302963/zaxeviv.pdf
    • https://cdn.shopify.com/s/files/1/0447/9008/7829/files/elements_of_aerial_photography.pdf
    • https://cdn.shopify.com/s/files/1/0430/0311/7721/files/edit_content_in_word_online.pdf
    • https://cdn.shopify.com/s/files/1/0431/2023/0564/files/latomoderarek.pdf
    • https://cdn.shopify.com/s/files/1/0436/0349/3028/files/sierra_5th_edition_reloading_manual.pdf
    • https://cdn.shopify.com/s/files/1/0431/6423/7992/files/18595892418.pdf
    • https://cdn.shopify.com/s/files/1/0432/5651/2676/files/xukadadilaxuniz.pdf
    • https://cdn.shopify.com/s/files/1/0431/4241/4493/files/folizajebaredanevorulu.pdf
    • https://cdn.shopify.com/s/files/1/0427/4136/6951/files/bowidijebonuw.pdf
    • https://cdn.shopify.com/s/files/1/0431/1741/2501/files/32103121505.pdf
    • https://cdn.shopify.com/s/files/1/0429/2440/8988/files/14674776213.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_off0000d350.bin
a17885b4fd577e0298a64705d5055d2ac7c2363fd7008e9cf236b3df412a17d8		 pdf-font-stream PDF embedded font (sfnt) at offset 0xD350 2828 bytes
font_01_sfnt_off0000dd4a.bin
e9c6446113628d838a644b431901934a47231e6e85e818b844bf6ca9ac99d59e		 pdf-font-stream PDF embedded font (sfnt) at offset 0xDD4A 5416 bytes
font_02_sfnt_off0000efa2.bin
88430b3ee4e01cc81d08fe0a2a6d480272e3bdbbe112164213b307e34f19c01b		 pdf-font-stream PDF embedded font (sfnt) at offset 0xEFA2 10392 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.