Malicious PDF — malware analysis report

Static analysis result for SHA-256 3bd850db60d81d9e…

MALICIOUS

PDF

44.2 KB Created: 2020-09-17 06:28:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 78615192701e863da40d64723bb771ac SHA-1: f74b6eacf36b4b4fec76ca71e6e2743b4bb0e53c SHA-256: 3bd850db60d81d9e185abbdd65f872ad590ea8676493866b801937f12ddf60d3
120 Risk Score

Malware Insights

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

The PDF contains a link farm and a specific malicious redirector URL, indicating a phishing or malware distribution attempt. The document body, though heavily obfuscated, contains the text 'Halo ce disable cd key check' and the malicious URL, suggesting the lure is related to game modification. The presence of numerous external PDF links further supports the malicious intent.

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.me/wix?keyword=halo+ce+disable+cd+key+check
    • http://kebupol.virtualvideogamestore.com/uploads/1/3/1/4/131437774/d1141.pdf
    • http://varug.rockport-pewter.com/uploads/1/3/0/8/130874493/3897710.pdf
    • https://2999ada2-aa71-43a2-9054-b930d4e0b51b.filesusr.com/ugd/45fd81_e6088f62f7cb4c8fba7695ff79580648.pdf?index=true
    • https://bc2f5dc2-3952-4a55-82a7-12bb7b594127.filesusr.com/ugd/1a1092_909c142eb91948fa909fc33a1fa28f5c.pdf?index=true
    • https://125f0422-d1ac-4481-8ae6-72f8e85316d2.filesusr.com/ugd/d90490_a39e61540d7343b086727a357f949ebe.pdf?index=true
    • https://db7c8479-770e-427f-9936-dc9bb5dd80e1.filesusr.com/ugd/8e1900_5b2e20d140c4430c96bde3250d300aec.pdf?index=true
    • https://6394a891-91f2-4401-bd87-463356cdf244.filesusr.com/ugd/a64c8c_997098d3d542477fbbd9ee302c90efc1.pdf?index=true
    • https://cdn.shopify.com/s/files/1/0431/1505/3213/files/60046368519.pdf
    • https://cdn.shopify.com/s/files/1/0430/0007/0307/files/bobabunudikejirudifi.pdf
    • https://cdn.shopify.com/s/files/1/0465/3672/0534/files/83983650182.pdf
    • https://cdn.shopify.com/s/files/1/0427/7266/0390/files/58746627731.pdf
    • https://cdn.shopify.com/s/files/1/0430/2897/1674/files/tibipotosusivala.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_off000061d9.bin
acc259f126ce81e29a0e00f73a37554b1e5c1824acc0b75229ce4202ec3d97ab		 pdf-font-stream PDF embedded font (sfnt) at offset 0x61D9 4800 bytes
font_01_sfnt_off00007227.bin
3f4aef828c0c963631eecdbd159ccb1335cc3d8edd88a5af4f57376a38573edf		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7227 10468 bytes
font_02_sfnt_off000095e8.bin
1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361		 pdf-font-stream PDF embedded font (sfnt) at offset 0x95E8 4324 bytes

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