Malicious PDF — malware analysis report

Static analysis result for SHA-256 47c90f17d6824d11…

MALICIOUS

PDF

47.4 KB Created: 2020-08-27 19:46:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6291d6d0e20d84b0b3917851592dd149 SHA-1: e951bc7ef55a7478e3dc5b7409c9e65d6d273790 SHA-256: 47c90f17d6824d1142db434730d93c4c7ab86ef7a7fbbbb21cc3b19a18d83eba
120 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link, pointing to 'https://ttraff.ru/pify?keyword=divinity+original+sin+2+best+talents'. This indicates an attempt to redirect the user to a malicious site. The document body, though heavily obfuscated, also contains this URL, reinforcing the malicious intent. The presence of numerous other links, many hosted on Shopify, suggests a link farm or SEO poisoning tactic to obscure the primary malicious destination.

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=divinity+original+sin+2+best+talents
    • http://files.mammalcommunicationlab.com/uploads/1/3/1/3/131380175/9992401.pdf
    • http://files.myssample.com/uploads/1/3/0/7/130739742/e79f34.pdf
    • https://cdn.shopify.com/s/files/1/0430/1930/5113/files/pap_smear_after_hysterectomy_guidelines.pdf
    • https://cdn.shopify.com/s/files/1/0430/6989/8914/files/34042263208.pdf
    • https://cdn.shopify.com/s/files/1/0432/2561/2450/files/vusifabaje.pdf
    • https://cdn.shopify.com/s/files/1/0437/0428/7383/files/bamevivetonufugunelato.pdf
    • https://cdn.shopify.com/s/files/1/0431/7557/5709/files/exercise_therapy_for_chronic_nonspecific_low_back_pain.pdf
    • https://cdn.shopify.com/s/files/1/0434/0436/1884/files/jotinipam.pdf
    • https://cdn.shopify.com/s/files/1/0459/7304/5415/files/demonstrative_adjectives_worksheets_with_answers.pdf
    • https://cdn.shopify.com/s/files/1/0434/5869/1232/files/alternative_fuels_nptel.pdf
    • https://cdn.shopify.com/s/files/1/0433/5131/0486/files/jomife.pdf
    • https://cdn.shopify.com/s/files/1/0435/6374/5441/files/iiaba_market_share_reports.pdf
    • https://cdn.shopify.com/s/files/1/0432/1509/3917/files/entrepreneurship_class_11_ncert.pdf
    • https://cdn.shopify.com/s/files/1/0436/0372/2398/files/chirutha_video_songs_mp4_hd.pdf
    • https://cdn.shopify.com/s/files/1/0439/3975/8235/files/kisixoputulotokopawa.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_off00006d7a.bin
d8a991f282758c33fca066835d6bda19f3cb3993872c423fc83bc7f58e76b0fe
pdf-font-stream PDF embedded font (sfnt) at offset 0x6D7A 5072 bytes
font_01_sfnt_off00007ed3.bin
8f620eb33ab1e9f8d3cf241bedf830a38ee02d19aa528693ac462a41719ac064
pdf-font-stream PDF embedded font (sfnt) at offset 0x7ED3 10516 bytes
font_02_sfnt_off0000a2c2.bin
1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361
pdf-font-stream PDF embedded font (sfnt) at offset 0xA2C2 4324 bytes