Malicious PDF — malware analysis report

Static analysis result for SHA-256 97efb9bbc4ec305b…

MALICIOUS

PDF

43.0 KB Created: 2020-08-09 08:10:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: d482063b6d69ea844a138d19cbe33d69 SHA-1: dde858371c21d7c612ce6526e654bfd2a89454cb SHA-256: 97efb9bbc4ec305b3c8bc2dacee8d157248a8e167b500ec33fd66db9f8d7d331
140 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1200 Hardware Add-in T1059.001 PowerShell

The PDF contains a large number of embedded links, with one specifically pointing to known malicious redirector infrastructure at `https://ttraff.ru/pify?keyword=cdta+224+pdf`. The document body, though heavily obfuscated, contains references to the malicious URL and numerous other URLs hosted on `cdn.shopify.com` and other domains, suggesting a link farm or redirection strategy. The presence of a callback lure heuristic further supports a phishing or social engineering attack vector.

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.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns
  • 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=cdta+224+pdf
    • http://gidol.bajasharkdiving.com/uploads/1/3/0/8/130874422/xazugazupo.pdf
    • http://files.organizedphotos.com/uploads/1/3/1/8/131871740/3286342.pdf
    • http://files.mossremovaleverettwa.com/uploads/1/3/0/7/130775462/8f0563c524d0.pdf
    • https://cdn.shopify.com/s/files/1/0431/5663/5812/files/13422190415.pdf
    • https://cdn.shopify.com/s/files/1/0429/1880/5657/files/zivetepatajamikixizenitar.pdf
    • https://cdn.shopify.com/s/files/1/0435/6443/3566/files/85472049926.pdf
    • https://cdn.shopify.com/s/files/1/0433/2758/6472/files/zimirilukisokosum.pdf
    • https://cdn.shopify.com/s/files/1/0443/3071/3244/files/oracle_java_collections_tutorial.pdf
    • https://cdn.shopify.com/s/files/1/0431/5096/6950/files/61934455399.pdf
    • https://cdn.shopify.com/s/files/1/0428/5916/7900/files/define_swan_song.pdf
    • https://cdn.shopify.com/s/files/1/0430/4932/0610/files/94722597729.pdf
    • https://cdn.shopify.com/s/files/1/0436/9865/1288/files/57660958128.pdf
    • https://cdn.shopify.com/s/files/1/0431/7003/7924/files/cognitive_aptitude_test_sample_questions_and_answers.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/kekesapenogetiru.pdf
    • https://cdn.shopify.com/s/files/1/0440/3917/6342/files/lamibulod.pdf
    • https://cdn.shopify.com/s/files/1/0437/6277/8264/files/pcb_file_download.pdf
    • https://cdn.shopify.com/s/files/1/0437/8358/5949/files/tuwedevamimoduj.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_off00005abf.bin
54efb0bc1e23dca0c8ec9c3074dc8e53cb88e7c3b11757217ad2dc0ccafa0b47		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5ABF 4380 bytes
font_01_sfnt_off000069b3.bin
b37250819e7e508634eea9bced7fe7cef7757547d7fe48c09df9d766c52c70e2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x69B3 12264 bytes
font_02_sfnt_off0000913f.bin
4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x913F 4324 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.