Malicious PDF — malware analysis report

Static analysis result for SHA-256 ce5002436f98808a…

MALICIOUS

PDF

40.9 KB Created: 2020-08-08 22:46:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 95f530498cf22f7f40bd2d84a9acbc67 SHA-1: d5d086d587d477cea6e84b57a9b749fbb3cba04c SHA-256: ce5002436f98808a1d633b198b7bb7a9331866d3bd53a847bedc1f7c3d4a4937
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to external PDF files. One of the primary links, identified by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic, directs to a known malicious redirector. The PDF_SEO_LINK_FARM heuristic indicates a large number of links were generated, likely to manipulate search engine results and lure unsuspecting users. The document body contains garbled text and a URL that appears to be part of the lure.

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.cc/pify?keyword=define+early+childhood+education+pdf
    • http://suwos.vernonsnowmobileclub.org/uploads/1/3/1/4/131453247/826a17c681d0.pdf
    • http://junab.amplifygymnastics.com/uploads/1/3/1/4/131437363/puniwakudozupo.pdf
    • http://juvoma.keyvisioncoaching.com/uploads/1/3/0/8/130874493/niwuzazebuvi.pdf
    • http://files.vibrantlivingmn.com/uploads/1/3/0/8/130874614/totawamowebiliw_gipuwijisufar_wilikuki_matetu.pdf
    • https://cdn.shopify.com/s/files/1/0437/1546/1285/files/list_of_highly_composite_numbers.pdf
    • https://cdn.shopify.com/s/files/1/0431/6895/6565/files/10598101604.pdf
    • https://cdn.shopify.com/s/files/1/0431/6600/7457/files/femawatudodufusefome.pdf
    • https://cdn.shopify.com/s/files/1/0431/9500/7137/files/3501440730.pdf
    • https://cdn.shopify.com/s/files/1/0432/7889/3214/files/12949264786.pdf
    • https://cdn.shopify.com/s/files/1/0434/2205/6600/files/kelsi_monroe_abella_danger.pdf
    • https://cdn.shopify.com/s/files/1/0428/1715/9335/files/importance_of_biosecurity_in_poultry_farming.pdf
    • https://cdn.shopify.com/s/files/1/0430/8425/1285/files/56118623509.pdf
    • https://cdn.shopify.com/s/files/1/0431/8016/3232/files/linakonijorixejugub.pdf
    • https://cdn.shopify.com/s/files/1/0431/5499/7402/files/90774081931.pdf
    • https://cdn.shopify.com/s/files/1/0433/6379/5096/files/12408402831.pdf
    • https://cdn.shopify.com/s/files/1/0431/4015/3505/files/latavaropijozinub.pdf
    • https://cdn.shopify.com/s/files/1/0431/3920/3229/files/kowifalatudukovez.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_off00006287.bin
3d9d7ded31f63243975a9dd74a29db9dd23834ebaacfc4f0e3a6be3eee6307a7
pdf-font-stream PDF embedded font (sfnt) at offset 0x6287 5164 bytes
font_01_sfnt_off00007425.bin
2c519f158510f0fdb88468b2b116d2f97dfc5dc703aaf85a497b0b808ccfbdf4
pdf-font-stream PDF embedded font (sfnt) at offset 0x7425 10032 bytes