Malicious PDF — malware analysis report

Static analysis result for SHA-256 2fa3192e5a255ec7…

MALICIOUS

PDF

77.8 KB Created: 2020-08-12 10:07:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5ef4a60ec6733554502717425082f26a SHA-1: 683ceebaf11371520ea4acc0bb5e262b15d2c6bc SHA-256: 2fa3192e5a255ec70b692a47bea5cca7fc5528fa06eec6323953e29450133360
120 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.com'. This URL is presented within the document body, disguised as a pharmaceutical information PDF. The PDF also contains a large number of embedded links, many pointing to Shopify domains, suggesting a link farm or SEO manipulation tactic. The primary malicious URL is 'https://ttraff.com/pify?keyword=azitromicina+bula+pdf+prati'.

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.com/pify?keyword=azitromicina+bula+pdf+prati
    • http://files.danceology.ca/uploads/1/3/1/3/131380467/lofot.pdf
    • http://files.eatclaylove.com/uploads/1/3/0/9/130969825/fogatusolipex-xuzorepafovoni-rupizolik.pdf
    • http://files.muirlawoffice.com/uploads/1/3/2/3/132303248/4874664.pdf
    • http://gakifa.spotlessga.com/uploads/1/3/0/7/130739592/fdfea8da81576.pdf
    • http://files.cvilleclergycollective.org/uploads/1/3/2/6/132681824/gepabano_kuvesik_jedunikisutil.pdf
    • https://cdn.shopify.com/s/files/1/0440/7512/2840/files/14413088365.pdf
    • https://cdn.shopify.com/s/files/1/0427/8976/5279/files/52180695239.pdf
    • https://cdn.shopify.com/s/files/1/0437/4183/9511/files/century_powermate_70_welder_manual.pdf
    • https://cdn.shopify.com/s/files/1/0432/6916/1110/files/jobejugogubu.pdf
    • https://cdn.shopify.com/s/files/1/0437/6638/2746/files/famuzaxukutiv.pdf
    • https://cdn.shopify.com/s/files/1/0445/3777/4239/files/levumiribofamosavesoku.pdf
    • https://cdn.shopify.com/s/files/1/0429/2778/4095/files/tinixugoxorut.pdf
    • https://cdn.shopify.com/s/files/1/0431/5840/5275/files/86641162255.pdf
    • https://cdn.shopify.com/s/files/1/0434/0246/1351/files/i_am_chemistry_lyrics.pdf
    • https://cdn.shopify.com/s/files/1/0440/6067/2165/files/unholy_dk_rotation.pdf
    • https://cdn.shopify.com/s/files/1/0428/2561/3475/files/51293428069.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/21659337375.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/voxetevew.pdf
    • https://cdn.shopify.com/s/files/1/0433/3309/1480/files/77535806741.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
stream_006_off00010def.bin
aec787aeb10a7b37643161bcd690db6fca3a91f647592ba97bbb95d7396e003d
decompressed-pdf-stream PDF FlateDecoded stream at offset 0x10DEF 18048 bytes
font_00_sfnt_off0000ceed.bin
6aadfe61bc3bbf0316d2b681bb39c2d4a43a1bcc7535bd4619373e70c635ff65
pdf-font-stream PDF embedded font (sfnt) at offset 0xCEED 5304 bytes
font_01_sfnt_off0000e0d7.bin
5ca731d984c40ec51a305337889b29477bf068011c1adb6476f6fecc39642f9a
pdf-font-stream PDF embedded font (sfnt) at offset 0xE0D7 14572 bytes