Malicious PDF — malware analysis report

Static analysis result for SHA-256 9cae24989196d348…

MALICIOUS

PDF

44.7 KB Created: 2020-08-11 16:37:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8b108ea3f2fc5880222f944f5b25ef38 SHA-1: d51e31c7b049dd0251162115311b99ddc4773f6b SHA-256: 9cae24989196d348fc11a9c3756ee9dfedcf14b9765c3289592810be5055efe5
120 Risk Score

Malware Insights

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

The PDF document contains a link farm designed to mimic search results, specifically for 'Aziz Ansari Modern Romance PDF Download'. The primary malicious link, https://ttraff.ru/pify?keyword=aziz+ansari+modern+romance+pdf+download, is a known malicious redirector. The document's structure and embedded links suggest a social engineering tactic to trick users into downloading potentially harmful files under the guise of legitimate content. 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.ru/pify?keyword=aziz+ansari+modern+romance+pdf+download
    • http://files.luckymomogifts.com/uploads/1/3/0/9/130969742/masanibubid.pdf
    • http://files.marygolden.studio/uploads/1/3/1/4/131406173/be5b0a.pdf
    • http://files.kayibmaedesigns.com/uploads/1/3/2/8/132814250/14763008ebb6.pdf
    • https://cdn.shopify.com/s/files/1/0435/1302/0570/files/jam_mathematics_syllabus.pdf
    • https://cdn.shopify.com/s/files/1/0434/0239/5798/files/8440173761.pdf
    • https://cdn.shopify.com/s/files/1/0435/5247/3243/files/49071026169.pdf
    • https://cdn.shopify.com/s/files/1/0428/6241/1942/files/jasewamowuvix.pdf
    • https://cdn.shopify.com/s/files/1/0430/7678/0192/files/wamojoxanobi.pdf
    • https://cdn.shopify.com/s/files/1/0429/6232/1567/files/44346953222.pdf
    • https://cdn.shopify.com/s/files/1/0429/2024/7462/files/releg.pdf
    • https://cdn.shopify.com/s/files/1/0431/3186/3202/files/74994110344.pdf
    • https://cdn.shopify.com/s/files/1/0433/6985/7176/files/26032208091.pdf
    • https://cdn.shopify.com/s/files/1/0429/9590/8761/files/15550728301.pdf
    • https://cdn.shopify.com/s/files/1/0438/9643/8936/files/13839857737.pdf
    • https://cdn.shopify.com/s/files/1/0435/6436/8021/files/troybilt_owners_manual.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_off00006ff5.bin
4bac8ae292e5d0b906db83853f396e47cf1e885d54936c725664bcecdb6532eb		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6FF5 5432 bytes
font_01_sfnt_off0000826b.bin
0057b06878abae174d99a3e3aded32c436d555c32f6fb49f89890300cda90fd5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x826B 10308 bytes

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