Malicious PDF — malware analysis report

Static analysis result for SHA-256 cbcbccf2743d03af…

MALICIOUS

PDF

138.1 KB Created: 2020-08-09 15:25:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 951dcb1442b499bfcd8f4a2f6c43982e SHA-1: ee322c211e1aec52339b1e0e59271b1e04e2d93a SHA-256: cbcbccf2743d03afeff720fd1bdd97239cd268e2f428c2197309846822c3ec06
120 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to a link farm hosted on cdn.shopify.com, and one critical link to a known malicious redirector at ttraff.ru. The document body, though heavily obfuscated, contains the URL for the malicious redirector, suggesting the document's primary purpose is to direct users to malicious infrastructure. No scripts were extracted, limiting the analysis of direct payload execution.

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.ru/pify?keyword=life+after+death+christianity+pdf
    • http://sogav.wildskil.com/uploads/1/3/1/4/131406082/wegofutudiwijesegu.pdf
    • http://wevula.peaceandhealing.net/uploads/1/3/1/4/131408899/9fa30e557b8dbc.pdf
    • http://files.seattlecarpetcareandrestoration.com/uploads/1/3/1/0/131070062/mazuvagapa.pdf
    • http://files.lafayette-school.org/uploads/1/3/2/7/132741389/gufonamoj.pdf
    • http://files.pr-perfect.com/uploads/1/3/1/0/131070786/8167297.pdf
    • https://cdn.shopify.com/s/files/1/0435/1652/6752/files/5936849959.pdf
    • https://cdn.shopify.com/s/files/1/0434/6196/8025/files/minogiredoluz.pdf
    • https://cdn.shopify.com/s/files/1/0437/8876/3298/files/oxford_junior_thesaurus.pdf
    • https://cdn.shopify.com/s/files/1/0436/4559/9904/files/sports_head_tennis_unblocked.pdf
    • https://cdn.shopify.com/s/files/1/0437/5737/1546/files/marine_survey_checklist.pdf
    • https://cdn.shopify.com/s/files/1/0428/2921/7958/files/liwujile.pdf
    • https://cdn.shopify.com/s/files/1/0432/2862/7107/files/blank_south_america_map.pdf
    • https://cdn.shopify.com/s/files/1/0431/1279/2221/files/neurological_examination_osce.pdf
    • https://cdn.shopify.com/s/files/1/0431/5290/0260/files/capites_da_areia_em.pdf
    • https://cdn.shopify.com/s/files/1/0437/4586/9985/files/motawukutamutigojiri.pdf
    • https://cdn.shopify.com/s/files/1/0433/9531/7911/files/93505170617.pdf
    • https://cdn.shopify.com/s/files/1/0429/8221/1733/files/68268336432.pdf
    • https://cdn.shopify.com/s/files/1/0433/3623/7206/files/jimikemuwexijafajedososak.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 5

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0001bcf9.bin
9370784dfa5f077cdf72432b93b204879954e46c6827805627be66af7fe3ad41		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1BCF9 3352 bytes
font_01_sfnt_off0001c8df.bin
838aa17be98a60f098de40c0321accbcce41d61aa1bc80d550293d3555a6b957		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1C8DF 4932 bytes
font_02_sfnt_off0001d99f.bin
807259cbb1dc4904e383ef07ef00845a946e72e9435c06dbd18fc4a618cc07cc		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1D99F 11416 bytes
font_03_sfnt_off0001ff3d.bin
0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1FF3D 4324 bytes
font_04_sfnt_off00020d3d.bin
2a0a2555ed5599b0622b1cc9000aeb3346c7a940c464a899c8fb170b395db6e2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x20D3D 3040 bytes

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