Malicious PDF — malware analysis report

Static analysis result for SHA-256 dd2ad4fe6004c8e8…

MALICIOUS

PDF

45.1 KB Created: 2020-08-24 06:33:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4399fa0f3e05bd0183a55f220600d835 SHA-1: 3528700efcda9e21cda2c80130a0a1ade91e9308 SHA-256: dd2ad4fe6004c8e847d854bd7a203ae06329ffe5b9df5aa0e230f57fc123343d
120 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link, specifically pointing to 'ttraff.cc'. The document body, though heavily obfuscated, contains the same URL and keywords related to acupressure, suggesting a lure. The PDF also exhibits characteristics of a link farm, with numerous embedded URLs, many hosted on Shopify. The primary malicious IOC is the redirector URL, which likely leads to further malicious content.

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=acupressure+potent+points+free
    • http://files.skinperfectionnz.com/uploads/1/3/0/7/130740586/vofakix.pdf
    • http://losoporer.explainitagain.org/uploads/1/3/0/7/130738971/9415068.pdf
    • https://cdn.shopify.com/s/files/1/0434/5833/0786/files/70750073114.pdf
    • https://cdn.shopify.com/s/files/1/0429/6572/9429/files/90678898647.pdf
    • https://cdn.shopify.com/s/files/1/0430/8205/5842/files/munupizi.pdf
    • https://cdn.shopify.com/s/files/1/0430/5226/9717/files/sukojugunifimotekomiwubu.pdf
    • https://cdn.shopify.com/s/files/1/0437/5255/4657/files/sony_dsc_f_828.pdf
    • https://cdn.shopify.com/s/files/1/0427/8580/0358/files/16097145570.pdf
    • https://cdn.shopify.com/s/files/1/0434/4768/1181/files/bestsongs._pk_apk_free.pdf
    • https://cdn.shopify.com/s/files/1/0431/7567/4014/files/maragatha_vallikku_manakolam_song.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/97428896976.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/
    • https://cdn.shopify.com/s/files/1/0430/5226/9717/f

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007446.bin
e40f43f5baa6d698c42777cf5d9a7a452d6375794ad18f61e59457fb58bb2ae7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7446 4756 bytes
font_01_sfnt_off00008484.bin
e7bd3dff7e0b5fe8fe28d97b5137b8efd9e788e823d3e9ef971ef80864daf207		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8484 10204 bytes

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