Malicious PDF — malware analysis report

Static analysis result for SHA-256 8eec683d20bbf8f0…

MALICIOUS

PDF

57.2 KB Created: 2020-08-29 23:08:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 615a48d2f70355ffabfb6f0560a596d8 SHA-1: 817fb132e7d952e9941bdbef56ee5c3e6a4463e6 SHA-256: 8eec683d20bbf8f0411f2aa300306c5f260d524b3389a4b3e3e452bad976db6e
120 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many pointing to Shopify domains, which is characteristic of SEO poisoning or link farm tactics. One critical heuristic identified a link to a known malicious redirector at https://ttraff.cc/wix. The document body, though heavily obfuscated, contains the same redirector URL, suggesting the primary intent is to drive traffic 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/wix?keyword=xpadder+controller+image
    • https://cdn.shopify.com/s/files/1/0431/3694/2234/files/drake_replacment_girl.pdf
    • https://cdn.shopify.com/s/files/1/0428/7922/1927/files/abnormal_psychology_an_integrative_approach_8th_edition_free.pdf
    • https://cdn.shopify.com/s/files/1/0437/9095/8749/files/sisovitusu.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/nomevorijodasulalo.pdf
    • https://cdn.shopify.com/s/files/1/0433/9020/6117/files/bmw_x3_2017_manual.pdf
    • https://cdn.shopify.com/s/files/1/0427/9864/5404/files/96190617905.pdf
    • https://cdn.shopify.com/s/files/1/0433/7529/6677/files/nofovitozekiwazoxaweraz.pdf
    • https://cdn.shopify.com/s/files/1/0430/3526/3138/files/75237459207.pdf
    • https://cdn.shopify.com/s/files/1/0434/8110/4541/files/96590976540.pdf
    • https://cdn.shopify.com/s/files/1/0434/2906/8949/files/jazalitumipigovisokez.pdf
    • https://cdn.shopify.com/s/files/1/0430/6888/3106/files/38614180960.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/75904593322.pdf
    • https://cdn.shopify.com/s/files/1/0446/7766/0825/files/petty_cash_book_format_sample.pdf
    • https://cdn.shopify.com/s/files/1/0438/5318/5174/files/lazuzazitefinarukerer.pdf
    • https://cdn.shopify.com/s/files/1/0436/2692/2146/files/manmadhuda_nee_kalaganna_mp3_song_fr.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_off000087bb.bin
5d8d4bd77df8dd9b5769fbd10c287f0fdbee8b888b9a514e4439bb92fd283214		 pdf-font-stream PDF embedded font (sfnt) at offset 0x87BB 4980 bytes
font_01_sfnt_off00009882.bin
b1a2f6ad83214761679b42f7bd2aac48d0820148a3787221c8c86e438c529e5c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9882 15376 bytes
font_02_sfnt_off0000c7e1.bin
1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361		 pdf-font-stream PDF embedded font (sfnt) at offset 0xC7E1 4324 bytes

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