Malicious PDF — malware analysis report

Static analysis result for SHA-256 35131a70db20541a…

MALICIOUS

PDF

46.5 KB Created: 2020-08-12 12:42:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3cab56d7bf36896a19e468eee083d5be SHA-1: 53c7e02a3c35ac6666b3ff6557b7608758ab4f08 SHA-256: 35131a70db20541a25614b6690c4ce13abf07d2da18c90373de98a2f60377dbf
120 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing indicating it links to a known malicious redirector. The document body, though heavily obfuscated, also contains the same URL. This suggests the primary purpose of the document is to redirect the user to a malicious site, likely for phishing or malware delivery. No scripts were extracted, and the family is unknown.

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=char+qul+in+arabic+pdf
    • http://files.beebepropertyservicesllc.com/uploads/1/3/1/4/131453456/mujide_dutepisat_wowipe_suxezinabukevip.pdf
    • http://files.fallencedars.com/uploads/1/3/1/4/131438098/roteselo-lapezosid.pdf
    • http://files.columbusrabbit.org/uploads/1/3/0/7/130739214/3d35a8.pdf
    • https://cdn.shopify.com/s/files/1/0437/7346/0631/files/the_explosive_child_ross_greene.pdf
    • https://cdn.shopify.com/s/files/1/0432/5982/2244/files/tujadegevofamepiregami.pdf
    • https://cdn.shopify.com/s/files/1/0431/2950/3908/files/sesogutasigen.pdf
    • https://cdn.shopify.com/s/files/1/0431/3179/7668/files/99349037751.pdf
    • https://cdn.shopify.com/s/files/1/0440/2806/7990/files/96554645835.pdf
    • https://cdn.shopify.com/s/files/1/0430/5915/1009/files/92916867081.pdf
    • https://cdn.shopify.com/s/files/1/0434/9463/7734/files/boiling_point_elevation_and_freezing_point_depression.pdf
    • https://cdn.shopify.com/s/files/1/0430/5246/6325/files/97590191542.pdf
    • https://cdn.shopify.com/s/files/1/0430/8788/8551/files/panasonic_ne_1054f.pdf
    • https://cdn.shopify.com/s/files/1/0429/3397/7255/files/wurururupo.pdf
    • https://cdn.shopify.com/s/files/1/0428/5949/5590/files/1069710416.pdf
    • https://cdn.shopify.com/s/files/1/0436/4189/7113/files/breathing_apparatus_parts.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000618c.bin
8ef69a72ea5d85738ef9c962ec3ba40413d5e01fa47c3a1355dea10a3e43fa58		 pdf-font-stream PDF embedded font (sfnt) at offset 0x618C 5236 bytes
font_01_sfnt_off00007341.bin
fbb36fc1813f433bcfa3198af5da6131d570d7745ae889d95049bea71babc3b8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7341 9796 bytes
font_02_sfnt_off00009508.bin
8a89a2c439e95f5ceb4e54924da78d9bded1d00d4d90da990426b17d95c29c04		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9508 16788 bytes

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