Malicious PDF — malware analysis report

Static analysis result for SHA-256 30a4e2e1289b56e4…

MALICIOUS

PDF

42.7 KB Created: 2020-09-16 16:10:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6024b26d494009005cd819a1863a9e7d SHA-1: d2b4d2b8fbac311f636e71542486d4ac44093d4d SHA-256: 30a4e2e1289b56e4c0c926d23c06599fd07738bac79d16d1dccbad58cd1c4613
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to external PDF files, indicating a link farm or redirection strategy. One critical heuristic identified a link to known malicious redirector infrastructure at https://ttraff.club/wix. The document body, though partially corrupted, contains the title 'Unit states of matter study guide' and the URL https://ttraff.club/wix?keyword=unit+states+of+matter+study+guide, suggesting a lure to a malicious site disguised as educational content.

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.club/wix?keyword=unit+states+of+matter+study+guide
    • http://gajis.misssandyssandbox.com/uploads/1/3/0/9/130969926/4642223.pdf
    • http://files.franksfrenchies.com/uploads/1/3/0/7/130776276/majinu_jofak_pekadizelidutet_valatefujugaz.pdf
    • http://karona.stevelyman.net/uploads/1/3/0/7/130776850/99a802.pdf
    • http://files.prairieparadisefarms.com/uploads/1/3/0/7/130776077/novositewa.pdf
    • http://demodi.melindayoungmd.com/uploads/1/3/1/3/131380349/2782950.pdf
    • https://f512bf10-37cb-4a46-8cb5-241a66d867a0.filesusr.com/ugd/dcc11b_c04ed2104ee045e1a0ad4de688cab58d.pdf?index=true
    • https://39427c11-bd3d-4eed-ae9c-92fec0b6fa91.filesusr.com/ugd/43d2fc_0fd8264decfa49fb98294db2c23822eb.pdf?index=true
    • https://8a0c4a90-8751-45fe-8d9a-c8dcd25d1485.filesusr.com/ugd/067ecb_ae6b8142f7d641b882d298f38ccb8ab6.pdf?index=true
    • https://1bf10450-84e3-4c07-a57c-8a5c57bc7457.filesusr.com/ugd/622218_43205bb1cfae404e808dc14fb35ce4fd.pdf?index=true
    • https://b605ce49-3ab7-47a2-90c2-6dba406840d5.filesusr.com/ugd/37987b_5e72e4c6f7bd4c8da8c0c6d8c72bc9bf.pdf?index=true
    • https://861fe797-53de-4a31-88fc-4e3eb67c8f93.filesusr.com/ugd/b463f2_9b9339c1485c4264b3843a7965a2f3c5.pdf?index=true
    • https://f02e3a86-775b-444b-aff9-8d25843daf48.filesusr.com/ugd/de60da_800f6474165a4d3e8de21a30b7de38bb.pdf?index=true
    • https://07698ba9-6022-4b64-9b72-5fc43c32aaff.filesusr.com/ugd/e643da_0dd68630e87748a4a63f1fd304533516.pdf?index=true
    • https://3bb8e9a3-afdc-4bc6-98da-bbe232d3a13f.filesusr.com/ugd/8bf3fc_a0256fc49d1243d0abc0052fe03cd454.pdf?index=true
    • https://9fffb58c-356f-41df-b51f-4622e1ddb24a.filesusr.com/ugd/067ecb_7a6ae71c0e674b33ac636bc1b615a216.pdf?index=true
    • https://cdn.shopify.com/s/files/1/0438/6878/2757/files/5656833052.pdf
    • https://cdn.shopify.com/s/files/1/0438/9027/8568/files/carnivale_season_3.pdf
    • https://cdn.shopify.com/s/files/1/0433/9371/2286/files/gazawegumuvidas.pdf
    • https://cdn.shopify.com/s/files/1/0433/5383/3637/files/archean_life_forms.pdf
    • https://cdn.shopify.com/s/files/1/0428/7738/6918/files/online_convert_jpg_to_high_quality.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_off00006925.bin
79983d6375723059967f1f94df1c97a60935b1b6cb5e468bd195358b05cdd774		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6925 5288 bytes
font_01_sfnt_off00007b19.bin
47a1ff4f7ad7bd8e2e1bcca3f33352d8be4ec5980d7a6aa2c11f6eb4a16f4d52		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7B19 10204 bytes

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