Malicious PDF — malware analysis report

Static analysis result for SHA-256 7fca804048aea6d3…

MALICIOUS

PDF

36.1 KB Created: 2020-08-02 22:01:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: e012ba18c897007296a9406f38f6ff52 SHA-1: 23de8234e744c748ab8366f8eeaf5144675ece8d SHA-256: 7fca804048aea6d35d7dd623eb07ce3a5ef90a5723cd17d97e8e64dde0461c2c
182 Risk Score

Malware Insights

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

The PDF contains a link farm and a malicious redirector, indicating a phishing or scam attempt. The document body, though heavily obfuscated, contains the URL 'https://ttraff.ru/pify?keyword=unity+key+codes', which is flagged as malicious. The heuristic 'SE_SECRET_RECOVERY_LURE' strongly suggests the document's intent is to trick users into revealing sensitive information. No scripts were extracted, limiting the analysis of direct payload execution.

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.
  • Recovery secret / private key request critical SE_SECRET_RECOVERY_LURE
    Document requests recovery phrases, private keys, backup codes, or saved passwords. Requests for these secrets in a document are high-risk.
  • 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.ru/pify?keyword=unity+key+codes
    • http://files.tcounseling.com/uploads/1/3/0/7/130740210/jiferisumuwaxifi.pdf
    • http://files.paullentzauthor.com/uploads/1/3/2/3/132303312/fagafuxoluteg_nogosa_sikadedolarin.pdf
    • http://bagefelan.mindfulness-et-sport.com/uploads/1/3/0/7/130738914/2917051.pdf
    • https://cdn.shopify.com/s/files/1/0427/8904/4383/files/vipopavufukire.pdf
    • https://cdn.shopify.com/s/files/1/0434/1006/3527/files/37098000030.pdf
    • https://cdn.shopify.com/s/files/1/0430/8484/1124/files/70569444586.pdf
    • https://cdn.shopify.com/s/files/1/0427/8714/3839/files/44787876084.pdf
    • https://cdn.shopify.com/s/files/1/0432/3049/4878/files/rulezabudavuxisemot.pdf
    • https://cdn.shopify.com/s/files/1/0434/1389/7368/files/venn_diagram_r.pdf
    • https://cdn.shopify.com/s/files/1/0431/4162/8072/files/23454749270.pdf
    • https://cdn.shopify.com/s/files/1/0434/0976/8600/files/97998647313.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/40573574370.pdf
    • https://cdn.shopify.com/s/files/1/0431/5450/5882/files/63910973826.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_off00005073.bin
37b28b4283cb8a28de42202ec8643868a4e1a3a4dee08bc670709ea7bc07cf35
pdf-font-stream PDF embedded font (sfnt) at offset 0x5073 4752 bytes
font_01_sfnt_off000060c4.bin
880353e46a34503144d6e534eaaadc456ca66e04bbc585dc72c3272de1427bb8
pdf-font-stream PDF embedded font (sfnt) at offset 0x60C4 10308 bytes