Malicious PDF — malware analysis report

Static analysis result for SHA-256 ed6bbc4cf52ff72c…

MALICIOUS

PDF

53.7 KB Created: 2020-08-13 03:26:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3fd9a916e2ec4e48b481141358dc494e SHA-1: 3887cecf7cd7ebfa9928d3551b90647cc503646c SHA-256: ed6bbc4cf52ff72cf8f6b11cb663efe7747459fe4ed33e29d15b303eb9d0a688
120 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded links, with one identified as a malicious redirector. The document body, though heavily obfuscated, contains references to URLs that are part of a link farm, suggesting a SEO poisoning or phishing campaign. The primary malicious link is https://ttraff.cc/wb?keyword=alesis%20micron%20service%20manual, which likely leads to further malicious content. The file's structure and the presence of numerous external links indicate a delivery mechanism for potentially harmful 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/wb?keyword=alesis%20micron%20service%20manual
    • http://damix.908ent.com/uploads/1/3/1/8/131871864/votavewetojuw-xodolameriti-barewef.pdf
    • http://fixenul.kurskeducation.org/uploads/1/3/1/4/131438641/xoxenaweridopixov.pdf
    • http://files.lockmangenetics.com/uploads/1/3/0/7/130775383/nizejab.pdf
    • http://files.greysriversports.com/uploads/1/3/1/4/131452733/3888462.pdf
    • http://files.envirolutionsconsulting.com/uploads/1/3/1/3/131379820/weriz.pdf
    • https://cdn.shopify.com/s/files/1/0433/9639/9265/files/16675549461.pdf
    • https://cdn.shopify.com/s/files/1/0427/7246/3772/files/vomuvu.pdf
    • https://cdn.shopify.com/s/files/1/0429/1543/0553/files/nebebarujupagujunigi.pdf
    • https://cdn.shopify.com/s/files/1/0436/5837/9417/files/zudagomokudarise.pdf
    • https://cdn.shopify.com/s/files/1/0427/6623/7852/files/8160016523.pdf
    • https://cdn.shopify.com/s/files/1/0429/8516/0857/files/51602271053.pdf
    • https://cdn.shopify.com/s/files/1/0427/5827/5238/files/devuxilizafud.pdf
    • https://cdn.shopify.com/s/files/1/0439/4346/1032/files/bokezabogafotumiv.pdf
    • https://cdn.shopify.com/s/files/1/0452/3150/5565/files/1079087194.pdf
    • https://cdn.shopify.com/s/files/1/0428/9026/4742/files/gebomavigoxatesiruge.pdf
    • https://cdn.shopify.com/s/files/1/0431/9143/5422/files/i_wasn_t_expecting_that_piano.pdf
    • https://cdn.shopify.com/s/files/1/0430/9155/8551/files/74494157633.pdf
    • https://cdn.shopify.com/s/files/1/0431/4847/6570/files/99296532146.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_off00009633.bin
6abe3f2c114b50841536960062af7752ad7b22c73c62025a4afa8dfa0d22c4d4
pdf-font-stream PDF embedded font (sfnt) at offset 0x9633 4992 bytes
font_01_sfnt_off0000a70e.bin
b9e6972998da730581e5bc43edf94535c90b7e3567bc5ef43d37634507ab4bb9
pdf-font-stream PDF embedded font (sfnt) at offset 0xA70E 10140 bytes