Malicious PDF — malware analysis report

Static analysis result for SHA-256 d8f1a1223d84fe75…

MALICIOUS

PDF

50.9 KB Created: 2020-08-10 04:30:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 46f00d842d9a748d5f4f87cae61c919b SHA-1: 050f7f9be67e626cdc6de9bd39b32c3b30e304a8 SHA-256: d8f1a1223d84fe759994d40d468545d96ab2e0c3b340422bef3457419fae3aaa
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 domains associated with SEO link farms. One critical heuristic identified a link to a known malicious redirector at 'ttraff.cc'. The document body, though partially corrupted, includes the same URL, suggesting the primary intent is to redirect users to malicious content through a deceptive link farm.

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=diferencia+entre+cefalohematoma+y+caput+succedaneum+pdf
    • http://files.psi-loveu.com/uploads/1/3/1/4/131453249/xadewagijugevor-xovutob.pdf
    • http://files.winkwinkbeautybar.com/uploads/1/3/2/8/132815172/6151ff1cfb2b2.pdf
    • http://files.iantheresaswonderfullife.com/uploads/1/3/1/3/131383318/laxevuragusinet-fivafozamulaso-niruje.pdf
    • http://files.visuograf.com/uploads/1/3/2/6/132681884/zikumidodof.pdf
    • https://cdn.shopify.com/s/files/1/0428/2230/3911/files/felevadekezekeniderekarad.pdf
    • https://cdn.shopify.com/s/files/1/0436/2852/7779/files/applied_nonlinear_control_slotine.pdf
    • https://cdn.shopify.com/s/files/1/0438/2860/9186/files/neumonia_complicada_en_nios.pdf
    • https://cdn.shopify.com/s/files/1/0434/0937/5383/files/63937207365.pdf
    • https://cdn.shopify.com/s/files/1/0431/9831/6705/files/rovufigorexitigemiluvo.pdf
    • https://cdn.shopify.com/s/files/1/0431/1020/3556/files/cement_production_technology.pdf
    • https://cdn.shopify.com/s/files/1/0436/8538/0246/files/voguvubuf.pdf
    • https://cdn.shopify.com/s/files/1/0429/6245/2643/files/kepetimisetevojiren.pdf
    • https://cdn.shopify.com/s/files/1/0437/5432/4117/files/71645179136.pdf
    • https://cdn.shopify.com/s/files/1/0429/6838/3641/files/75758847410.pdf
    • https://cdn.shopify.com/s/files/1/0431/8999/3636/files/areas_autocaravanas_portugal.pdf
    • https://cdn.shopify.com/s/files/1/0433/5131/0488/files/66145340621.pdf
    • https://cdn.shopify.com/s/files/1/0430/8343/2096/files/zekuwefipagidu.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_off0000775d.bin
90608a0dc30bd17b4e9d85334719f20ddeeeffd9c57115727d33c91607d77489
pdf-font-stream PDF embedded font (sfnt) at offset 0x775D 5380 bytes
font_01_sfnt_off00008978.bin
e79c4a63ed4db55cef00f22819fa1285d4e72fd160f0265b040c1dfa360aaf1c
pdf-font-stream PDF embedded font (sfnt) at offset 0x8978 11312 bytes
font_02_sfnt_off0000ae36.bin
05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176
pdf-font-stream PDF embedded font (sfnt) at offset 0xAE36 4324 bytes