Malicious PDF — malware analysis report

Static analysis result for SHA-256 9c80d18f60d160d3…

MALICIOUS

PDF

83.9 KB Created: 2020-09-18 16:44:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8b40fd0110fadfc51eacbbdd9fcb2829 SHA-1: 4808ccd24a3760bad0fd87c3deece7aa3af24c73 SHA-256: 9c80d18f60d160d31fe5237e80dac6233fb44edc4f36e956400fa7e628ebe04e
140 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.001 Malicious Link T1059.001 PowerShell

The PDF contains a link to a known malicious redirector, ttraff.com, disguised as a furnace manual. The document body, though heavily obfuscated, contains the URL and keywords related to the lure. The presence of numerous PDF links suggests a link farm or SEO poisoning tactic to increase visibility. The heuristic 'SE_CALLBACK_LURE' further supports a phishing or scam pretext.

Heuristics 4

  • 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.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns
  • 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/wix?keyword=heil+furnace+manual
    • https://ead3e324-fc77-4659-8c9a-d90dd262fee7.filesusr.com/ugd/38955b_7f983d9f28ec449790790228e08561a2.pdf?index=true
    • https://fd70b3ba-d63b-4c56-94a2-5c0960e56e03.filesusr.com/ugd/bc0b97_8934116a28504ae4b48e3547f62ee38b.pdf?index=true
    • https://8658fe7e-0a34-496d-a599-c6488f5827ab.filesusr.com/ugd/c345b0_1b2529b2f477405d9a4a4da8118e1e2a.pdf?index=true
    • https://c254f155-af50-4315-87cf-377789c9343d.filesusr.com/ugd/3fb742_f91707a8a09d41e8b466bb31551e68ca.pdf?index=true
    • https://a9b7dbc1-666b-4b65-81c8-1576217dafc6.filesusr.com/ugd/003b86_68ff5ef4d041461a84c7ee5040fb22b3.pdf?index=true
    • https://cdn.shopify.com/s/files/1/0433/0032/3478/files/composite_numbers_have_answer_com.pdf
    • https://cdn.shopify.com/s/files/1/0428/8770/8825/files/chrome_android_flags_settings.pdf
    • https://c1757c3c-951a-45f9-bf12-a88b4701d949.filesusr.com/ugd/8a9bcc_687592498011482ea36f1f7151033331.pdf?index=true
    • https://acb4faae-7a3b-421f-8641-774b3516bce6.filesusr.com/ugd/2ca22b_9c76c8b204084d429851d4d98aafe790.pdf?index=true
    • https://af266999-8553-4555-86bd-9a3d79c24fa9.filesusr.com/ugd/9ff9b8_7bb3ee1b7ba74506b81a002e86ab19dd.pdf?index=true
    • https://9fc130b9-b8b1-4e0c-bb29-ff2be6c6d6cf.filesusr.com/ugd/008e52_7b023598b15945a5afac0908c895cc7c.pdf?index=true
    • https://cdn.shopify.com/s/files/1/0433/8063/7861/files/las_reformas_borbonicas_en_espaa_y_america.pdf
    • https://cdn.shopify.com/s/files/1/0437/6159/8613/files/attestation_de_vie_commune_prefecture.pdf
    • https://cdn.shopify.com/s/files/1/0433/3695/8104/files/30436582199.pdf
    • https://cdn.shopify.com/s/files/1/0430/8657/7828/files/rabaturapepizatijot.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_off0000f1aa.bin
3f400b161bd85ac9168d01676c0206b28ee9de950808a9db5316cd4b7762ead7		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF1AA 4500 bytes
font_01_sfnt_off000100c3.bin
4e4992d0e97c279ab0335284b20fd72beb99c66d7dd930fbe127920839ae03c2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x100C3 16924 bytes
font_02_sfnt_off000134cb.bin
05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176		 pdf-font-stream PDF embedded font (sfnt) at offset 0x134CB 4324 bytes

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