Malicious PDF — malware analysis report

Static analysis result for SHA-256 9e19c021b9f8cbf3…

MALICIOUS

PDF

41.8 KB Created: 2020-08-25 23:21:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 644084763a70966cd697dbcbf09b11c1 SHA-1: 13865afae85b349c0d19a69cdf1f88db2252f616 SHA-256: 9e19c021b9f8cbf33d777cc144eaa7296e7058a76273bcc82b00313dd98f2b9f
120 Risk Score

Malware Insights

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

The PDF file exhibits characteristics of a link farm, with numerous embedded URLs. One critical heuristic identified a link to a known malicious redirector, ttraff.com, which likely serves to obscure the ultimate malicious destination. The document body, though heavily obfuscated, also contains this redirector URL. The presence of a large number of external links, many pointing to Shopify domains, suggests an attempt to leverage SEO or distribute content through multiple sources.

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.com/pify?keyword=civ+6+government+plaza
    • http://loripa.citystarhotelyangon.com/uploads/1/3/1/3/131378779/sonigivumabanelanad.pdf
    • http://nevogemuv.apaky.org/uploads/1/3/1/4/131437502/1970625.pdf
    • http://torodaxes.friendsofforesthillpark.org/uploads/1/3/1/3/131383483/9224841.pdf
    • https://cdn.shopify.com/s/files/1/0432/7538/7043/files/is_mega._nz_safe.pdf
    • https://cdn.shopify.com/s/files/1/0431/7573/9553/files/sword_art_online_15_alicization_invading.pdf
    • https://cdn.shopify.com/s/files/1/0430/4021/1097/files/5373503240.pdf
    • https://cdn.shopify.com/s/files/1/0458/6271/5545/files/bhagavad_gita_quotes_in_tamil_language.pdf
    • https://cdn.shopify.com/s/files/1/0430/7727/1716/files/palladium_rpg.pdf
    • https://cdn.shopify.com/s/files/1/0438/3146/0002/files/sukanu.pdf
    • https://cdn.shopify.com/s/files/1/0462/5622/6458/files/famazurilodapif.pdf
    • https://cdn.shopify.com/s/files/1/0427/5788/2022/files/37023672668.pdf
    • https://cdn.shopify.com/s/files/1/0432/3590/1602/files/1932900820.pdf
    • https://cdn.shopify.com/s/files/1/0436/5543/0309/files/pisutavelawivimazi.pdf
    • https://cdn.shopify.com/s/files/1/0437/7070/8125/files/characteristics_definition.pdf
    • https://cdn.shopify.com/s/files/1/0438/0839/1330/files/webibezu.pdf
    • https://cdn.shopify.com/s/files/1/0434/2172/8930/files/zumevido.pdf
    • https://cdn.shopify.com/s/files/1/0435/8933/7256/files/askep_bronkopneumonia_pada_anak.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_off00006641.bin
b5d8264706e2ff3f8be522a7c53e0d53293d7975fa7e7b673494db1359b3e987
pdf-font-stream PDF embedded font (sfnt) at offset 0x6641 5132 bytes
font_01_sfnt_off000077a9.bin
3e6bed5f3abc63f36922a0dc8cda0ce35982623a9ddc49f92fa0a58ae49041a4
pdf-font-stream PDF embedded font (sfnt) at offset 0x77A9 10252 bytes