Malicious PDF — malware analysis report

Static analysis result for SHA-256 8aeb00e3d2ec611d…

MALICIOUS

PDF

48.4 KB Created: 2020-08-20 03:28:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6c26daa5df4a5e719d93358adbce4ff8 SHA-1: bd6aa5d8c8d5ae3d98e32a24c37bb9c1b7cbd987 SHA-256: 8aeb00e3d2ec611dbd72c69386ff43a6c0aba98e76b2fa693a244ba73bf70cdd
120 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.cc/pify?keyword=modal+confirm+dialog+on+form+submit+bootstrap'. Additionally, it exhibits characteristics of a PDF link farm, with numerous links, including one to 'https://cdn.shopify.com/s/files/1/0428/5900/4070/files/xiaomi_eu_mido.pdf'. The document body, though heavily obfuscated, contains references to the redirector URL and appears to be a lure for a confirmation dialog. No scripts were extracted, limiting further analysis of execution behavior.

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=modal+confirm+dialog+on+form+submit+bootstrap
    • http://files.fodraszbutor.com/uploads/1/3/0/7/130775292/bixijunoxa.pdf
    • http://files.invictahealthcare.net/uploads/1/3/1/4/131437680/548925f69b.pdf
    • http://files.joannblock.com/uploads/1/3/0/9/130969545/midubolalevige_mojigi_domuweganof.pdf
    • http://files.richbrownies.com/uploads/1/3/1/4/131483830/424c10c8ec51a.pdf
    • http://files.tibetsupportgroupyork.org/uploads/1/3/0/7/130776099/5700490.pdf
    • https://cdn.shopify.com/s/files/1/0428/5900/4070/files/xiaomi_eu_mido.pdf
    • https://cdn.shopify.com/s/files/1/0435/1016/9759/files/36673204417.pdf
    • https://cdn.shopify.com/s/files/1/0431/6590/9160/files/27934251812.pdf
    • https://cdn.shopify.com/s/files/1/0429/5114/7676/files/83189184085.pdf
    • https://cdn.shopify.com/s/files/1/0435/5240/7704/files/gopiratirefogovalavefun.pdf
    • https://cdn.shopify.com/s/files/1/0436/0221/5074/files/72885236132.pdf
    • https://cdn.shopify.com/s/files/1/0433/7680/3990/files/93894130698.pdf
    • https://cdn.shopify.com/s/files/1/0445/6900/2143/files/usmle_step_1_secrets_download.pdf
    • https://cdn.shopify.com/s/files/1/0438/4702/4805/files/apt-_get_uninstall.pdf
    • https://cdn.shopify.com/s/files/1/0433/7342/8888/files/learn_arabic_language_in_urdu.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/72593533024.pdf
    • https://cdn.shopify.com/s/files/1/0432/3803/1518/files/68019672642.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_off00006d92.bin
8acf083597c8b3381dc077b32da68e2e6b837aeb7450c55cd3434b31b315979c
pdf-font-stream PDF embedded font (sfnt) at offset 0x6D92 5620 bytes
font_01_sfnt_off0000809a.bin
c25289606d072900578f04b2ddad59eecea326a431acc9227947cc723b39be07
pdf-font-stream PDF embedded font (sfnt) at offset 0x809A 15844 bytes