Malicious PDF — malware analysis report

Static analysis result for SHA-256 f2ccdf05fd7ee1ec…

MALICIOUS

PDF

41.9 KB Created: 2020-08-22 10:25:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5d733a79b5376d1542e61123c416cdc8 SHA-1: 850ecf50a11581a1f01a4123140c73bc73169344 SHA-256: f2ccdf05fd7ee1ec2f9efe41555b04f9a9fffbd67004cb9ac2e5abc3ddb09384
188 Risk Score

Malware Insights

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

The PDF contains multiple embedded links, with one specifically identified as a malicious redirector. The document body, though partially garbled, contains text related to 'free securecrt with crack', indicating a lure for potentially pirated software. The heuristic 'SE_SECRET_RECOVERY_LURE' suggests the document may also attempt to phish for credentials or recovery secrets. The primary malicious URL is https://ttraff.cc/pify?keyword=free++securecrt+with+crack.

Heuristics 5

  • 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.
  • Recovery secret / private key request critical SE_SECRET_RECOVERY_LURE
    Document requests recovery phrases, private keys, backup codes, or saved passwords. Requests for these secrets in a document are high-risk.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=free++securecrt+with+crack
    • http://files.tallenphotos.com/uploads/1/3/1/6/131637177/zaxeki.pdf
    • http://files.nirvanatails.com/uploads/1/3/1/4/131438093/dibiziwekemo_narag_xobetijopesu_vejanixozo.pdf
    • http://bewuxuzet.tcssci.com/uploads/1/3/1/3/131379678/pitibij-mitagupom-miluleje-wawegabufidum.pdf
    • https://cdn.shopify.com/s/files/1/0429/9682/6273/files/71358776358.pdf
    • https://cdn.shopify.com/s/files/1/0429/8267/0485/files/84505607097.pdf
    • https://cdn.shopify.com/s/files/1/0429/8565/2375/files/57111951151.pdf
    • https://cdn.shopify.com/s/files/1/0439/4595/1400/files/8291248984.pdf
    • https://cdn.shopify.com/s/files/1/0437/9285/9293/files/schaum_complex_variables.pdf
    • https://cdn.shopify.com/s/files/1/0431/2832/4257/files/rutabogaduwejel.pdf
    • https://cdn.shopify.com/s/files/1/0432/8646/2628/files/functional_testing_types.pdf
    • https://cdn.shopify.com/s/files/1/0429/9823/5289/files/19363922927.pdf
    • https://cdn.shopify.com/s/files/1/0438/3172/2146/files/i_love_unir.pdf
    • https://cdn.shopify.com/s/files/1/0434/5780/6503/files/scope_creep_in_project_management.pdf
    • https://cdn.shopify.com/s/files/1/0436/8737/9097/files/49542754420.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_off000067dc.bin
be240d287b6a35d5a6a295e71ed7141b1d776f74fc94a28bc2a007f9bb136431
pdf-font-stream PDF embedded font (sfnt) at offset 0x67DC 4964 bytes
font_01_sfnt_off000078cc.bin
d584193a41ff2077995ac54398a202c0d5983bae8133f0cfa3d05c423f11a8b5
pdf-font-stream PDF embedded font (sfnt) at offset 0x78CC 10048 bytes