Malicious PDF — malware analysis report

Static analysis result for SHA-256 29ecab1b6bb8e3a4…

MALICIOUS

PDF

49.2 KB Created: 2020-07-31 21:27:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 92e3a5ad2bb2f090f11c2d78aa1610dc SHA-1: a541f2c680f1db377534a5acb3646180a05f0a5e SHA-256: 29ecab1b6bb8e3a47f9de92f6c4602ea679da9e38735ca31fc16653516a35187
120 Risk Score

Malware Insights

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

The PDF file contains multiple embedded links, with a critical heuristic firing for a malicious redirector. The document body, though heavily obfuscated, contains text referencing 'Cultist simulator temptation' and the malicious URL. The primary attack vector appears to be a lure to a malicious redirector, likely for further payload delivery or phishing.

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/pify?keyword=cultist+simulator+temptation
    • http://files.weare-thebeat.com/uploads/1/3/1/3/131397981/lawasamenuzed_legib.pdf
    • http://files.constructioncareerdaycc.org/uploads/1/3/1/3/131378953/4edd5f730d856.pdf
    • http://files.empowerdecatur.com/uploads/1/3/2/6/132695813/3edfa127ebea59c.pdf
    • http://files.istanbulsanatlayasam.org/uploads/1/3/0/9/130969703/5610943.pdf
    • https://cdn.shopify.com/s/files/1/0431/7075/8820/files/15765557678.pdf
    • https://cdn.shopify.com/s/files/1/0431/6083/0116/files/mubufa.pdf
    • https://cdn.shopify.com/s/files/1/0440/6912/6309/files/3425356510.pdf
    • https://cdn.shopify.com/s/files/1/0437/6854/5442/files/janut.pdf
    • https://cdn.shopify.com/s/files/1/0431/1613/4562/files/kuzibojojajanikal.pdf
    • https://cdn.shopify.com/s/files/1/0429/4960/7590/files/32914748004.pdf
    • https://cdn.shopify.com/s/files/1/0431/7259/3832/files/bonitubopomemenapu.pdf
    • https://cdn.shopify.com/s/files/1/0430/9902/9655/files/82820665904.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/50306279194.pdf
    • https://cdn.shopify.com/s/files/1/0430/7543/6698/files/tugiguguriduwuvagawan.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_off000076bf.bin
dc6f8e9752704094db1d622aa9b097fcf84d32fada076395ca20e0b6b42d7c93		 pdf-font-stream PDF embedded font (sfnt) at offset 0x76BF 4868 bytes
font_01_sfnt_off0000872f.bin
3041235058bcc4824dc15914f6394627cb219dd7a14555af295a0ab330cb5316		 pdf-font-stream PDF embedded font (sfnt) at offset 0x872F 10160 bytes
font_02_sfnt_off0000a9e8.bin
a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA9E8 4324 bytes

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