Malicious PDF — malware analysis report

Static analysis result for SHA-256 55badfba3c0c1505…

MALICIOUS

PDF

64.7 KB Created: 2020-08-24 14:11:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: bcd4592a002efa6c5ddfd5ec9989778e SHA-1: e7c3a36e5a5f30515aae34214ff696343951f1f3 SHA-256: 55badfba3c0c15054989fdc26981d5f86769e3ed9c57969f50cbbbd7b248704b
140 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.cc'. Additionally, it exhibits characteristics of a link farm, with numerous external PDF links, many hosted on Shopify. The document body, though partially corrupted, contains text suggesting a lure related to travel guides and includes the malicious URL. The presence of a callback phishing lure heuristic further supports the malicious intent.

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.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns
  • 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=get+your+guide+rome+to+florence
    • http://files.adelanteyouthmission.org/uploads/1/3/1/0/131070398/5922910.pdf
    • http://files.geneseecountymg.org/uploads/1/3/0/9/130969046/fanibo_fexanakibi_gijigij.pdf
    • http://dekozim.ceciliaviney.com/uploads/1/3/1/4/131437812/lupob_nudom_tisowonimuvapub.pdf
    • https://cdn.shopify.com/s/files/1/0437/2021/2629/files/57328667921.pdf
    • https://cdn.shopify.com/s/files/1/0431/4556/0219/files/celebration_gospel_songs.pdf
    • https://cdn.shopify.com/s/files/1/0433/3246/8904/files/13961041716.pdf
    • https://cdn.shopify.com/s/files/1/0439/3612/0990/files/zitekise.pdf
    • https://cdn.shopify.com/s/files/1/0440/0765/3526/files/atrocities_act_in_marathi.pdf
    • https://cdn.shopify.com/s/files/1/0446/5029/9555/files/zunipuz.pdf
    • https://cdn.shopify.com/s/files/1/0437/4790/1592/files/41623334701.pdf
    • https://cdn.shopify.com/s/files/1/0428/5222/1091/files/pofamisaxulijarixowovazuw.pdf
    • https://cdn.shopify.com/s/files/1/0435/4136/4890/files/dibafexitokomusojuto.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_off0000bfd5.bin
2a41f97a555df89e8c68cc0ec0f543e4a63cbc93e71a8e33598952c6319c2419
pdf-font-stream PDF embedded font (sfnt) at offset 0xBFD5 5088 bytes
font_01_sfnt_off0000d11d.bin
b69965d14eb46efbeeaf654a6794e4692f6970fb5c64894e253ebd36884ee34e
pdf-font-stream PDF embedded font (sfnt) at offset 0xD11D 10772 bytes