Malicious PDF — malware analysis report

Static analysis result for SHA-256 82e391aa4d9c8f99…

MALICIOUS

PDF

47.0 KB Created: 2020-08-26 06:02:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4fe84ebbe7ea31e3b1c4cb816e95d1f1 SHA-1: 9a2410888dd1d72f4b762194ee2625edfd82cb1d SHA-256: 82e391aa4d9c8f994cb8c3fd6a59c12be22093b495f8657daa4d589f3f8b5a89
120 Risk Score

Malware Insights

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

The PDF document contains a link farm pointing to numerous PDFs hosted on Shopify and other domains, with a primary malicious redirector URL. The document body text, though partially corrupted, includes the text "Heavy truck labor time guide" and the malicious URL, suggesting a lure to trick users into visiting the redirector. The presence of a mass external PDF link farm indicates an attempt to manipulate search engine results or distribute content through a large number of linked documents.

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=heavy+truck+labor+time+guide
    • http://files.thedesigninglibrarian.com/uploads/1/3/1/6/131606072/rutavizetak_fiwaga_pavozob.pdf
    • http://mimukoked.trojantradinggroup.com/uploads/1/3/1/6/131606060/xebili_kuvafeliw.pdf
    • http://files.grazinggreynacres.com/uploads/1/3/1/3/131398573/sekatomafogon.pdf
    • https://cdn.shopify.com/s/files/1/0435/8648/6440/files/54034820992.pdf
    • https://cdn.shopify.com/s/files/1/0428/2171/4079/files/20074605928.pdf
    • https://cdn.shopify.com/s/files/1/0435/2681/5903/files/39117892188.pdf
    • https://cdn.shopify.com/s/files/1/0431/3461/5706/files/binary_number_conversion.pdf
    • https://cdn.shopify.com/s/files/1/0447/6325/0839/files/gejorexiwiferu.pdf
    • https://cdn.shopify.com/s/files/1/0430/8543/0945/files/59449427691.pdf
    • https://cdn.shopify.com/s/files/1/0437/5235/8049/files/razer_naga_drivers.pdf
    • https://cdn.shopify.com/s/files/1/0436/3301/6982/files/zupetogifa.pdf
    • https://cdn.shopify.com/s/files/1/0459/9962/0263/files/bollywood_movie_site_name_list.pdf
    • https://cdn.shopify.com/s/files/1/0432/7840/1700/files/90196370710.pdf
    • https://cdn.shopify.com/s/files/1/0433/9249/9868/files/58303295894.pdf
    • https://cdn.shopify.com/s/files/1/0430/0144/6554/files/nafeze.pdf
    • https://cdn.shopify.com/s/files/1/0431/2550/6208/files/xejefunisizazebabumil.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_off00006b71.bin
24e6c0a5e2bfdad37fa01ab80fd98e28580328e56a027905f372651418c24263
pdf-font-stream PDF embedded font (sfnt) at offset 0x6B71 5184 bytes
font_01_sfnt_off00007d1b.bin
7eacd7f1850c0a43a13fc4f1fb757857863083410a21a465c413440ea4c1451c
pdf-font-stream PDF embedded font (sfnt) at offset 0x7D1B 10572 bytes
font_02_sfnt_off0000a13b.bin
ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3
pdf-font-stream PDF embedded font (sfnt) at offset 0xA13B 4324 bytes