Malicious PDF — malware analysis report

Static analysis result for SHA-256 d5eebeaf96293827…

MALICIOUS

PDF

47.9 KB Created: 2020-08-20 16:32:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 53b12019f8ecf898933ceba1d6e6da8a SHA-1: abba030b73d88da5ebf3a20651ed864f1ab308cd SHA-256: d5eebeaf9629382794987ef2a838d38d76f3875af92c597f0e17c40d7f48ff0b
128 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF file contains a lure for an 'antepartum assessment form' and embeds a large number of external links, many of which point to potentially malicious redirectors. One critical heuristic identified a link to 'ttraff.com', a known malicious redirector. The document body also contains obfuscated text and embedded URLs, suggesting an attempt to disguise malicious content and redirect the user to a harmful site. No scripts were extracted from this sample.

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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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=antepartum+assessment+form
    • http://pawasu.giveusbreadandroses.com/uploads/1/3/0/9/130969057/vopajenu-ledov-bemigutat.pdf
    • http://files.daniellebschwartz.com/uploads/1/3/1/0/131070688/xoterowivi-jirapoluveg-sumerezi.pdf
    • http://gomevolol.amyshomedaycare.com/uploads/1/3/1/4/131409090/979685.pdf
    • http://files.esolcentre.uk/uploads/1/3/1/3/131398140/tifiruxuvigunudun.pdf
    • http://nibeteb.longlivethedogs.com/uploads/1/3/2/6/132681670/1057891.pdf
    • https://cdn.shopify.com/s/files/1/0431/1079/3370/files/goxugusapubutedufajas.pdf
    • https://cdn.shopify.com/s/files/1/0427/6381/3020/files/5603978190.pdf
    • https://cdn.shopify.com/s/files/1/0438/0524/5597/files/81804871060.pdf
    • https://cdn.shopify.com/s/files/1/0438/0629/4176/files/convention_cedaw_en_francais.pdf
    • https://cdn.shopify.com/s/files/1/0428/7689/5398/files/bbl_fixture.pdf
    • https://cdn.shopify.com/s/files/1/0439/9644/6878/files/glee_seasons_4_episode_1.pdf
    • https://cdn.shopify.com/s/files/1/0432/5238/3902/files/tojeve.pdf
    • https://cdn.shopify.com/s/files/1/0428/8249/8716/files/rezagikukilofosoxo.pdf
    • https://cdn.shopify.com/s/files/1/0437/7303/4658/files/causative_form_exercises_b2.pdf
    • https://cdn.shopify.com/s/files/1/0434/8493/8390/files/ccna_cisco_certified_network_associate.pdf
    • https://cdn.shopify.com/s/files/1/0438/9827/3944/files/vesojaguzanila.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_off00007282.bin
5530610a9cb6cc2689de44b2a96e215d55f1a3aa86ca81dfa506f50981381aa4
pdf-font-stream PDF embedded font (sfnt) at offset 0x7282 4840 bytes
font_01_sfnt_off000082d0.bin
7e499e71e3a57d5178f527618c75966c5a483204facc6c4831dfd0e57d2ee62a
pdf-font-stream PDF embedded font (sfnt) at offset 0x82D0 9860 bytes
font_02_sfnt_off0000a48d.bin
9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2
pdf-font-stream PDF embedded font (sfnt) at offset 0xA48D 4324 bytes