Malicious PDF — malware analysis report

Static analysis result for SHA-256 7abdc4573c7bedcf…

MALICIOUS

PDF

41.6 KB Created: 2020-09-01 07:55:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: a119a1af9a1ed3f42681807af89905f7 SHA-1: a2ca399a9cccffb8396890c01571e9eccf9471a2 SHA-256: 7abdc4573c7bedcf6c1accd9d277e1a767a10e40134ea74c6ec3aa9ec924d03f
128 Risk Score

Malware Insights

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

The PDF contains multiple embedded links, with one identified as a malicious redirector. The document body, though heavily obfuscated, contains references to movie titles and download-related phrases, suggesting a lure to trick users into clicking the malicious links. The presence of a link farm further supports the intent to drive traffic to potentially harmful sites.

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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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/wix?keyword=brothers+day+malayalam+movie++movierulz
    • https://cdn.shopify.com/s/files/1/0431/1616/7328/files/four_veronica_roth_free_download.pdf
    • https://cdn.shopify.com/s/files/1/0431/1384/0794/files/xaberusuvakifepuzepufir.pdf
    • https://cdn.shopify.com/s/files/1/0430/6753/9623/files/wovijupixoxasixijoxemukip.pdf
    • https://cdn.shopify.com/s/files/1/0439/9199/0430/files/30914008262.pdf
    • https://cdn.shopify.com/s/files/1/0434/0432/9125/files/fubemugaraw.pdf
    • https://cdn.shopify.com/s/files/1/0434/6911/1449/files/xuwuzusotodikep.pdf
    • https://cdn.shopify.com/s/files/1/0430/9975/0564/files/wezuvomuvetomo.pdf
    • https://static.usrfiles.com/ugd/3bf302_c6be65a0a03b4b7db8ff4b45a8d66ac0.pdf
    • https://static.usrfiles.com/ugd/585b1d_02aed091fe154d78a9ad2d692468b819.pdf
    • https://static.usrfiles.com/ugd/99965f_a937595e7f7a4be096a4f8af0c233aa4.pdf
    • https://static.usrfiles.com/ugd/b8c837_d7a06a31749b4e9e8983b609aa762230.pdf
    • https://static.usrfiles.com/ugd/b8c837_7fd8e764dc9e4f49bf70d5387486616a.pdf
    • https://static.usrfiles.com/ugd/b8c837_4b522b4db0354ce3b6b1b87d5fc3bc7c.pdf
    • https://static.usrfiles.com/ugd/760101_01aa7f46d01140e3b6732cd9fee40c31.pdf
    • https://static.usrfiles.com/ugd/3ab5ed_a24dfa5285fe4ba4b289010f881a730b.pdf
    • https://static.usrfiles.com/ugd/32acb1_9f3ac8f39b844ae587e65050efbf2bee.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_off000056a2.bin
68c909d9ee63b9a23dabc8079431c096d122dc61a5ee69703a73037454f62ac7
pdf-font-stream PDF embedded font (sfnt) at offset 0x56A2 5328 bytes
font_01_sfnt_off000068a6.bin
6710b7b023198f9320ae706cef1a2d953e3a51977260ca2f7fadf2cea62cb4c5
pdf-font-stream PDF embedded font (sfnt) at offset 0x68A6 15628 bytes