Malicious PDF — malware analysis report

Static analysis result for SHA-256 88d90326a76959f4…

MALICIOUS

PDF

33.6 KB Created: 2020-08-09 04:09:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: ab975e3440a80f987397bec034c4bb96 SHA-1: 7c76b1520b186dc1036730d665dfd43fae883be4 SHA-256: 88d90326a76959f4a1c0e7e8a143e4e77425c3a68027ee869a213f67d4769531
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.001 Malicious Link

The PDF file contains a link farm and a critical heuristic firing for a malicious redirector. The document body, though heavily obfuscated, contains the URL that triggered the malicious redirector heuristic. This suggests the primary purpose is to redirect the user to malicious infrastructure, likely for credential harvesting or further malware delivery, as indicated by the MFA lure heuristic.

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.
  • MFA / one-time-code harvesting lure high SE_MFA_LURE
    Document asks for a one-time code, authenticator approval, or MFA confirmation — consistent with credential phishing kits that steal session tokens or abuse multi-factor authentication
  • 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=kit+aromatouch+doterra+pdf+espa%25C3%25B1ol
    • http://files.davidensleydesign.com/uploads/1/3/1/0/131069766/9174616.pdf
    • http://gaxawidus.eventsbyangel.com/uploads/1/3/0/8/130874284/gomadaga_gatek_nejebaroteluve_migopovunad.pdf
    • http://files.steppingstonetuition.com/uploads/1/3/1/6/131606901/lamijakotuzuzof.pdf
    • http://files.thecraft2draft.com/uploads/1/3/1/4/131453097/9991478.pdf
    • http://files.souderlandscaping.com/uploads/1/3/1/4/131437755/6069427.pdf
    • https://cdn.shopify.com/s/files/1/0437/6284/3797/files/dijkstra_s_algorithm_matlab.pdf
    • https://cdn.shopify.com/s/files/1/0434/8451/2418/files/fudunufagotusimalid.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/71860998709.pdf
    • https://cdn.shopify.com/s/files/1/0432/1063/7476/files/miwofunavakelutumapefago.pdf
    • https://cdn.shopify.com/s/files/1/0440/4061/8134/files/administrative_law_book_by_c_k_takwani.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/fexofedome.pdf
    • https://cdn.shopify.com/s/files/1/0440/3098/4357/files/vitakoxub.pdf
    • https://cdn.shopify.com/s/files/1/0434/3631/0693/files/35446905504.pdf
    • https://cdn.shopify.com/s/files/1/0433/3414/0056/files/bokemakepumilege.pdf
    • https://cdn.shopify.com/s/files/1/0433/2060/6885/files/zagum.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_off000043a4.bin
ef9aa08d316a9d069b68092894d794355c41f9e98cd8e1a1754af0c6f8091099
pdf-font-stream PDF embedded font (sfnt) at offset 0x43A4 5576 bytes
font_01_sfnt_off00005631.bin
f151f58860c51beee61e5cfc197ac03324c9af41935f879a38e907539ec7507a
pdf-font-stream PDF embedded font (sfnt) at offset 0x5631 9912 bytes