Malicious PDF — malware analysis report

Static analysis result for SHA-256 2e47025775e56382…

MALICIOUS

PDF

44.0 KB Created: 2020-08-28 09:57:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: ccf0bc35ee94af827326e0ceddf59de2 SHA-1: 111f84f4c471fc612358b87fb3073bf1aff247b1 SHA-256: 2e47025775e56382825169bbbd64ec91038fe966f4642b3d11b10e17f4b32d33
128 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Phishing: Spearphishing Attachment T1204.001 Malicious Link T1059.001 Command and Scripting Interpreter: PowerShell

The PDF contains a critical heuristic firing for a malicious redirector link, which points to 'https://ttraff.cc/pify?keyword=take+five+guitar+tab'. Additionally, it exhibits characteristics of a PDF link farm, with numerous links hosted on cdn.shopify.com, some of which are confirmed benign but others are unknown. The presence of a 'download button' heuristic suggests a social engineering lure. No scripts were extracted, but the primary attack vector appears to be directing users to malicious infrastructure via a deceptive link.

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.cc/pify?keyword=take+five+guitar+tab
    • http://files.nickelfurniture.com/uploads/1/3/1/8/131871970/rojesejibaredu.pdf
    • http://vujexon.resonancehealing.com/uploads/1/3/1/0/131070450/3358220.pdf
    • https://cdn.shopify.com/s/files/1/0435/5502/9141/files/mubolajosorufulob.pdf
    • https://cdn.shopify.com/s/files/1/0430/7556/7770/files/bimusofivep.pdf
    • https://cdn.shopify.com/s/files/1/0433/4272/5275/files/jacky_cheung_you_tube.pdf
    • https://cdn.shopify.com/s/files/1/0436/2023/7475/files/pakav.pdf
    • https://cdn.shopify.com/s/files/1/0429/6874/4087/files/the_theory_of_relativity_and_a_priori_knowledge.pdf
    • https://cdn.shopify.com/s/files/1/0428/1312/8867/files/9549176649.pdf
    • https://cdn.shopify.com/s/files/1/0434/6957/0198/files/lamemunorufugijimirid.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/fuxojusi.pdf
    • https://cdn.shopify.com/s/files/1/0431/4251/2802/files/gemstones_of_the_world_download.pdf
    • https://cdn.shopify.com/s/files/1/0432/2017/2960/files/relubiva.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_off0000597c.bin
dd0bd33e704094397847bcc212c768ef0724ad13414a127da27b3b4e55db9e68
pdf-font-stream PDF embedded font (sfnt) at offset 0x597C 4604 bytes
font_01_sfnt_off00006947.bin
8a2f74231cd3c731092775fd00b7349cf6aafd29c48e973ca52922b1eedd0f4d
pdf-font-stream PDF embedded font (sfnt) at offset 0x6947 13904 bytes
font_02_sfnt_off0000959a.bin
0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333
pdf-font-stream PDF embedded font (sfnt) at offset 0x959A 4324 bytes