Malicious PDF — malware analysis report

Static analysis result for SHA-256 44468ada90be9b4a…

MALICIOUS

PDF

48.6 KB Created: 2020-08-09 06:10:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6f027b3a8d6971a3164d886db8c515c4 SHA-1: 874f4329034f38a873bb62d6aaab4c6ea371315b SHA-256: 44468ada90be9b4a3248b981efd957d3fd0dd9c963e1caa568f1f1a8795df7f3
120 Risk Score

Malware Insights

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

The PDF file contains a link to a known malicious redirector, ttraff.cc, which is likely used to obscure the final destination of the malicious payload. The document body, though partially corrupted, contains keywords related to programming and the redirector URL itself, suggesting a social engineering lure. The presence of numerous external PDF links, many hosted on Shopify, indicates a link farm strategy to potentially improve search engine visibility or distribute malicious content. The primary intent appears to be redirecting the user to malicious infrastructure.

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=base64+encode+pdf+java
    • http://bagidaka.goldcoastcreatives.com/uploads/1/3/0/7/130775840/0e711773717.pdf
    • http://files.floridalivesound.com/uploads/1/3/1/3/131383384/70b20bf7ba935d3.pdf
    • http://files.bathhousebasics.com/uploads/1/3/1/4/131453645/4182052.pdf
    • https://cdn.shopify.com/s/files/1/0437/7162/5634/files/63130786174.pdf
    • https://cdn.shopify.com/s/files/1/0436/9511/2347/files/23860495631.pdf
    • https://cdn.shopify.com/s/files/1/0429/3433/7695/files/vorogo.pdf
    • https://cdn.shopify.com/s/files/1/0431/7128/3098/files/fivenibafezapukonaloxim.pdf
    • https://cdn.shopify.com/s/files/1/0436/1509/2894/files/figejulokejarugevip.pdf
    • https://cdn.shopify.com/s/files/1/0435/4614/9023/files/tonaduxifowunime.pdf
    • https://cdn.shopify.com/s/files/1/0432/5759/4016/files/goxabaso.pdf
    • https://cdn.shopify.com/s/files/1/0433/7316/6744/files/vizufitefujo.pdf
    • https://cdn.shopify.com/s/files/1/0438/6911/0432/files/86743896082.pdf
    • https://cdn.shopify.com/s/files/1/0428/8489/0790/files/guxazipujom.pdf
    • https://cdn.shopify.com/s/files/1/0431/9015/7473/files/intermittent_fasting_diet_meal_plan.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_off00006954.bin
ed5f8e57aaf30b74141559dc9ac1857ba40b8f83325afb9c3bbfbb5c9a19697b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6954 5448 bytes
font_01_sfnt_off00007c0a.bin
9b43c754806cde60ac2a1659ba3dd4167af893eaba7e1d3059b30ded32b567bf		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7C0A 10604 bytes
font_02_sfnt_off0000a051.bin
e93acd332f5893643511f4cefd38969ad5c744ad1b08842a788b6be7d277dd15		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA051 16204 bytes

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