Malicious PDF — malware analysis report

Static analysis result for SHA-256 bbc0035b0e0f0ded…

MALICIOUS

PDF

50.7 KB Created: 2020-07-14 13:43:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: e14bb2ea4dd24a3c45e7e471e598da72 SHA-1: 0b93015a9fd859ab5845535201c62952d1431167 SHA-256: bbc0035b0e0f0ded52cdaccfc7e7ba1bdd7f66df02ee80abc325d30a494d4698
162 Risk Score

Malware Insights

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

The PDF contains a heuristic match for an advance-fee scam lure, indicating a fraudulent intent. It also includes a critical heuristic firing for a malicious redirector link pointing to 'ttraff.com'. The document body, though heavily obfuscated, appears to contain keywords related to political cartoons and worksheets, likely serving as a deceptive pretext for the scam. The presence of numerous external PDF links, including one to 'tedazusalutu.files.wordpress.com', further supports the analysis of a link farm designed to distribute malicious content.

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.
  • Advance-fee lottery/parcel scam lure high SE_ADVANCE_FEE_SCAM_LURE
    Document contains lottery/beneficiary or prize language together with large-value draft/funds wording and parcel/courier delivery requirements. This is a classic advance-fee fraud document shape.
  • 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/wb?keyword=american%20imperialism%20political%20cartoon%20worksheet%20answers
    • http://files.packardautorepairs.com/uploads/1/3/1/4/131437029/riwaxisopateba_wujegozam_zuferefumunes_tazuzupowusebig.pdf
    • http://files.delusionaldesignscnc.com/uploads/1/3/1/4/131437930/8571970.pdf
    • http://files.middleparkwcd.com/uploads/1/3/0/8/130813732/12dd68069c0.pdf
    • http://files.genesiseventsinc.com/uploads/1/3/1/3/131383737/2a5bc24.pdf
    • https://tedazusalutu.files.wordpress.com/2020/06/wesiw.pdf
    • https://gejovofusasa.files.wordpress.com/2020/06/93298448295.pdf
    • https://xidiseso.files.wordpress.com/2020/06/memuxepomosefokezi.pdf
    • https://sabasideri657302335.files.wordpress.com/2020/07/minozifelirisox.pdf
    • https://jopolobu.files.wordpress.com/2020/07/dujem.pdf
    • https://dipowaza.files.wordpress.com/2020/06/38212460723.pdf
    • https://jelitefa.files.wordpress.com/2020/07/18236372355.pdf
    • https://sivutis.files.wordpress.com/2020/07/91212527665.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/62042090741.pdf
    • https://cdn.shopify.com/s/files/1/0434/6226/2936/files/gegonosemi.pdf
    • https://cdn.shopify.com/s/files/1/0431/2599/7722/files/legitujizumepiwopedonu.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/81397135942.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/josuzafegeda.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/78299439052.pdf
    • https://cdn.shopify.com/s/files/1/0432/2073/0011/files/9843274580.pdf
    • https://cdn.shopify.com/s/files/1/0430/9575/2864/files/potusibiritifepivo.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_off00008786.bin
4217e32f2eb1d73bd089f6477621c455eed9d64dbb43280d111033aef3be36e6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8786 5108 bytes
font_01_sfnt_off000098ac.bin
25f361d6ae463080f655e79b6994df563078ab29a53f0d2f1ad69fd888f2ce2b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x98AC 10616 bytes

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