Malicious PDF — malware analysis report

Static analysis result for SHA-256 ef37a2ce9d01b0a0…

MALICIOUS

PDF

64.7 KB Created: 2020-08-20 19:41:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 2cdc11d8ed565997bb0b66b5695ddb2d SHA-1: c823f1b0e5318af482e837bff706fcf3d992c8d2 SHA-256: ef37a2ce9d01b0a0f9bf199d8bbc1590c27eb83c0cf3c1f7901f61759bad7fe0
142 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a lure related to 'IBPS recruitment 2019 application form' and embeds multiple external links. One critical heuristic indicates a malicious redirector link to 'https://ttraff.cc/pify?keyword=ibps+recruitment+2019+application+form', suggesting the document is designed to redirect users to malicious content. Another heuristic flags a large number of external PDF links, indicating a link farm. The presence of a callback phishing lure further supports the malicious intent.

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.cc/pify?keyword=ibps+recruitment+2019+application+form
    • http://files.firstshowing.ca/uploads/1/3/0/7/130739204/desaviwanawajazadefi.pdf
    • http://genunav.parkviewpanthers6thgrade.com/uploads/1/3/1/0/131070109/ea4af1c2d.pdf
    • http://files.awordontheword.tv/uploads/1/3/1/3/131379578/wirogoluf_daxot_fitafikaz.pdf
    • https://cdn.shopify.com/s/files/1/0435/5558/6203/files/pizusironinujanezuriw.pdf
    • https://cdn.shopify.com/s/files/1/0434/6799/7344/files/perfect_english_grammar_future_simple_exercises.pdf
    • https://cdn.shopify.com/s/files/1/0434/1963/1765/files/foradurewotawos.pdf
    • https://cdn.shopify.com/s/files/1/0440/7204/2661/files/smallest_android_phone_verizon.pdf
    • https://cdn.shopify.com/s/files/1/0431/8570/1019/files/50744572112.pdf
    • https://cdn.shopify.com/s/files/1/0430/4162/0119/files/nelson_essentials_of_pediatrics_7th_edition.pdf
    • https://cdn.shopify.com/s/files/1/0428/8865/9100/files/free_agricultural_science_textbook.pdf
    • https://cdn.shopify.com/s/files/1/0428/5107/4214/files/52313711091.pdf
    • https://cdn.shopify.com/s/files/1/0428/3308/4575/files/chemistry_formulas_in_download.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_off0000b2c5.bin
f3e00414ee18310205d4af8bb1547cca6e6cf2dae86bf18384d4f458a41bea77		 pdf-font-stream PDF embedded font (sfnt) at offset 0xB2C5 5720 bytes
font_01_sfnt_off0000c620.bin
d86ee23f9eb556f939f91cc2a016f4a7f3919306d6ba0782af1fcccdc4e456a3		 pdf-font-stream PDF embedded font (sfnt) at offset 0xC620 15596 bytes

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