Malicious PDF — malware analysis report

Static analysis result for SHA-256 addf2565c7799376…

MALICIOUS

PDF

44.4 KB Created: 2020-08-04 03:57:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 0082849af8e8750202dc89bc61913d92 SHA-1: 8d35c6b1ce8024657b916e1ef056485f3d5c4e94 SHA-256: addf2565c77993767122b5a611aa206c0453a73074c6956442afea0da281df67
150 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to domains associated with link farms and redirectors, indicating a phishing or malicious redirection attempt. The primary malicious URL identified is https://ttraff.com/pify?keyword=building+planning+drawing+pdf+download, which is flagged as a malicious redirector. The document body and metadata suggest a lure related to 'building planning drawing pdf download'. No scripts were extracted, but the sheer volume of links and the critical heuristic firings strongly suggest a malicious intent to redirect users to harmful sites.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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.com/pify?keyword=building+planning+drawing+pdf+download
    • http://files.holosterra.com/uploads/1/3/1/4/131453919/xepipozemupod-xakanifakipuj-pilesiviposupur.pdf
    • http://files.rendonpt.org/uploads/1/3/1/8/131856995/6797479.pdf
    • http://files.launcestoncarols.com/uploads/1/3/2/6/132681767/vizivisenutunuf.pdf
    • http://files.lyndsayrice.com/uploads/1/3/1/3/131383838/603f3c5bb2fc3f.pdf
    • http://files.openheartstudio.org/uploads/1/3/0/7/130776208/5649029.pdf
    • https://cdn.shopify.com/s/files/1/0434/3670/3900/files/2797251462.pdf
    • https://cdn.shopify.com/s/files/1/0428/3600/0931/files/lituwerevabuzob.pdf
    • https://cdn.shopify.com/s/files/1/0436/9865/1288/files/xupageraxojazeku.pdf
    • https://cdn.shopify.com/s/files/1/0432/3573/7755/files/93266750058.pdf
    • https://cdn.shopify.com/s/files/1/0434/9358/9142/files/doropiraji.pdf
    • https://cdn.shopify.com/s/files/1/0429/6900/6236/files/auto_clicker_gary.pdf
    • https://cdn.shopify.com/s/files/1/0429/2060/7900/files/35782990149.pdf
    • https://cdn.shopify.com/s/files/1/0431/6083/0116/files/nowajob.pdf
    • https://cdn.shopify.com/s/files/1/0431/0905/6666/files/5276303075.pdf
    • https://cdn.shopify.com/s/files/1/0431/8124/4577/files/neil_cavuto_net_worth.pdf
    • https://cdn.shopify.com/s/files/1/0431/8032/7070/files/puxowabubomi.pdf
    • https://cdn.shopify.com/s/files/1/0431/3320/6690/files/12657941624.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_off00006322.bin
9501ce339452176f3769dc3d22d5cdb2ce0505d157e556b4470781e09636a4c5
pdf-font-stream PDF embedded font (sfnt) at offset 0x6322 4856 bytes
font_01_sfnt_off000073b5.bin
1cee30205efb1cb42d4895185c7bf265f7aebdc2563451c781c8125c099d32a2
pdf-font-stream PDF embedded font (sfnt) at offset 0x73B5 10096 bytes
font_02_sfnt_off0000963c.bin
b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c
pdf-font-stream PDF embedded font (sfnt) at offset 0x963C 4324 bytes