Malicious PDF — malware analysis report

Static analysis result for SHA-256 45c4f42b1bc9ec2f…

MALICIOUS

PDF

43.7 KB Created: 2020-08-14 00:33:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: ad5066121daa014600e79cb4d2b90361 SHA-1: 323fbe50f66bf7f35a1f8ba2e227aba456f7bfd5 SHA-256: 45c4f42b1bc9ec2fdd92b4c5664c03628a1723a3c46ec9fb66c129986936f5a0
150 Risk Score

Malware Insights

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

The PDF contains a link that redirects to a malicious URL, disguised with a lure for 'Archery master 3d apk mod free'. The PDF also contains a large number of external links, many pointing to Shopify domains, suggesting a link farm or SEO poisoning tactic. The ML classifier strongly flagged this PDF as malicious.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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=archery+master+3d+apk+mod+free
    • http://kisuzuzar.docrmanagement.co.uk/uploads/1/3/0/7/130740178/sabigevegibe-tefiwinulovi.pdf
    • http://files.phishross.com/uploads/1/3/1/1/131164156/9109146.pdf
    • http://bodisil.sloanekennedy.com/uploads/1/3/0/7/130775320/7423801.pdf
    • http://gajudavi.audreycurd.com/uploads/1/3/0/8/130814328/zivawidomo.pdf
    • http://files.tradewindsroofingsc.com/uploads/1/3/1/4/131452817/vopitukal.pdf
    • https://cdn.shopify.com/s/files/1/0447/5761/4741/files/neoliberalism_in_south_africa.pdf
    • https://cdn.shopify.com/s/files/1/0433/4262/6984/files/jetezedugewuni.pdf
    • https://cdn.shopify.com/s/files/1/0432/5136/8104/files/lalafezisov.pdf
    • https://cdn.shopify.com/s/files/1/0432/0739/3439/files/97217740331.pdf
    • https://cdn.shopify.com/s/files/1/0429/4665/8463/files/78908171727.pdf
    • https://cdn.shopify.com/s/files/1/0434/7658/2552/files/juwagikasulesanatamu.pdf
    • https://cdn.shopify.com/s/files/1/0437/2529/1674/files/brush_pen_alphabet.pdf
    • https://cdn.shopify.com/s/files/1/0439/5394/6782/files/solving_multi_step_equations_with_fractions_worksheet.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/75877947267.pdf
    • https://cdn.shopify.com/s/files/1/0439/5152/1947/files/fapuv.pdf
    • https://cdn.shopify.com/s/files/1/0429/8165/4679/files/53512464836.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_off00005d65.bin
c531c7ffffc6ea5728ec10901416ebc63b1459d0e5aabf6556fc5a0db81209ff		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5D65 5316 bytes
font_01_sfnt_off00006f78.bin
8790a6dec575a559a45ca0bf554877c0c7d472a58dad8c0dc14dba5025dd178e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6F78 10524 bytes
font_02_sfnt_off00009382.bin
7f6049e5011acf0e8581793f2bc2bb947aac2929fdb77abc318b2a6155c1ef71		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9382 4324 bytes

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