Malicious PDF — malware analysis report

Static analysis result for SHA-256 c397fdfca8379c46…

MALICIOUS

PDF

46.2 KB Created: 2020-08-14 02:10:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 89b16cd65c47916c3ea2939402f6fe1c SHA-1: 8691a4dcc4163c2192dde33140a11789be6cd047 SHA-256: c397fdfca8379c46362766ffa39f4c8a3dc4dc1b564f7be37b6a43f6ec5d54b6
120 Risk Score

Malware Insights

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

The PDF contains a malicious redirector link disguised as 'supply chain management notes pdf'. This link points to ttraff.com, which is known to host malicious redirectors. The document also contains a large number of external PDF links, many of which point to benign Shopify URLs, but some point to unknown domains that could host further malicious content. The primary attack vector appears to be social engineering via a deceptive link within the document.

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=supply+chain+management+notes+pdf
    • http://mopane.jordantaxserviceinc.com/uploads/1/3/2/8/132816202/6011589.pdf
    • http://debaju.joyfulalwaysdesigns.com/uploads/1/3/2/7/132740541/8361093.pdf
    • http://fibugiwa.nicholeleavy.com/uploads/1/3/2/6/132695329/9473238.pdf
    • http://parebode.casawcf.com/uploads/1/3/1/4/131408999/nuvefo.pdf
    • http://wunev.felixstoweprimaryschools.com/uploads/1/3/1/4/131438111/3810223.pdf
    • https://cdn.shopify.com/s/files/1/0433/7664/0156/files/engineering_your_future_9th_edition_free.pdf
    • https://cdn.shopify.com/s/files/1/0433/3846/5435/files/89966457006.pdf
    • https://cdn.shopify.com/s/files/1/0430/4207/8877/files/18708983069.pdf
    • https://cdn.shopify.com/s/files/1/0432/5516/9186/files/41691520564.pdf
    • https://cdn.shopify.com/s/files/1/0431/0440/3613/files/22847486159.pdf
    • https://cdn.shopify.com/s/files/1/0452/6299/5617/files/borland_pascal_7_insider.pdf
    • https://cdn.shopify.com/s/files/1/0437/0425/4615/files/14804351408.pdf
    • https://cdn.shopify.com/s/files/1/0429/3469/8147/files/66997223324.pdf
    • https://cdn.shopify.com/s/files/1/0433/7801/6406/files/leche_de_almendras_beneficios.pdf
    • https://cdn.shopify.com/s/files/1/0437/7349/3406/files/sewotepozabizena.pdf
    • https://cdn.shopify.com/s/files/1/0439/6823/3630/files/annihilation_of_caste_system.pdf
    • https://cdn.shopify.com/s/files/1/0435/3222/2615/files/email_etiquette_quiz.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_off000074e9.bin
0b597fca3c3178e3867ac679c63277c7f3d8e39a9b615ab439e55b991d7f401f
pdf-font-stream PDF embedded font (sfnt) at offset 0x74E9 5676 bytes
font_01_sfnt_off0000881a.bin
a0649593a1a1c34d1f96f0cda8579b168aa110f159b403805bba0d7d6c5eed29
pdf-font-stream PDF embedded font (sfnt) at offset 0x881A 10428 bytes