Malicious PDF — malware analysis report

Static analysis result for SHA-256 1d53c78137977fd2…

MALICIOUS

PDF

42.5 KB Created: 2020-08-21 06:01:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4b33140dbf58c350ae28b14aef4a086d SHA-1: d896c42f0232f374c787dd69bb78f56bc9ad4e1c SHA-256: 1d53c78137977fd27ed2931a6fa87469feba3ed568e9c82acd46d309828d3a57
120 Risk Score

Malware Insights

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

The PDF contains a mass external link farm, with a critical heuristic firing indicating a link to known malicious redirector infrastructure. The primary malicious URL identified is https://ttraff.cc/pify?keyword=safety+risk+assessment+report+pdf. This suggests the document is designed to redirect users to malicious content, likely for phishing or malware distribution. No scripts were extracted from this sample.

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=safety+risk+assessment+report+pdf
    • http://genir.keenforgreenclonmel.com/uploads/1/3/2/3/132302780/mavelunuri_zovopebaz.pdf
    • http://files.islamtoyhwh.com/uploads/1/3/0/7/130776601/79682.pdf
    • http://files.concreterentalsnyc.com/uploads/1/3/1/4/131437724/rusumatul.pdf
    • http://files.accianiengineering.com/uploads/1/3/1/0/131070149/nibuf.pdf
    • http://wejomubap.thaddeusmckain.com/uploads/1/3/1/4/131411896/fd6d8889202211.pdf
    • https://cdn.shopify.com/s/files/1/0433/3341/9166/files/89100050455.pdf
    • https://cdn.shopify.com/s/files/1/0431/2426/1026/files/43397378038.pdf
    • https://cdn.shopify.com/s/files/1/0446/8034/7801/files/befavonetonafopikore.pdf
    • https://cdn.shopify.com/s/files/1/0432/6014/9910/files/nugulotaxon.pdf
    • https://cdn.shopify.com/s/files/1/0439/9906/8310/files/jowixamer.pdf
    • https://cdn.shopify.com/s/files/1/0435/4854/1079/files/kutamofivuzetagus.pdf
    • https://cdn.shopify.com/s/files/1/0428/1755/2543/files/5827678355.pdf
    • https://cdn.shopify.com/s/files/1/0429/5114/7679/files/pavexa.pdf
    • https://cdn.shopify.com/s/files/1/0433/2499/7800/files/nopat.pdf
    • https://cdn.shopify.com/s/files/1/0433/0084/7781/files/nilelalujidiku.pdf
    • https://cdn.shopify.com/s/files/1/0435/1574/0312/files/99556069784.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_off00006725.bin
bea24dca8d8ef0f64c48650a2d1ebe53b25b8b5873d5b5f714f94370376a4bc3
pdf-font-stream PDF embedded font (sfnt) at offset 0x6725 5424 bytes
font_01_sfnt_off00007985.bin
7e701cd6c99b548a3b07df52c7b380b04528c61f4d13858b6d73b6148993afd3
pdf-font-stream PDF embedded font (sfnt) at offset 0x7985 10372 bytes