Malicious PDF — malware analysis report

Static analysis result for SHA-256 a2250183d9e6ca20…

MALICIOUS

PDF

44.5 KB Created: 2020-07-08 23:41:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 963e7fb56bba89db517bf59a31bf25bf SHA-1: ec87f20a09fc0d4c261aecef97e60bed64302d06 SHA-256: a2250183d9e6ca20e2a96cba1dce06489a462ea22cbc1316d92fc0eee81375ab
120 Risk Score

Malware Insights

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

The PDF document contains a link to a redirector URL, which is a common technique for delivering malicious payloads or phishing pages. The document body and embedded links suggest a link farm SEO poisoning attack, aiming to lure users with search terms like 'Siemens schott ceran 9000 manual' to malicious sites. The primary redirector URL is https://ttraff.cc/wb?keyword=siemens%20schott%20ceran%209000%20manual.

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/wb?keyword=siemens%20schott%20ceran%209000%20manual
    • http://files.lockmangenetics.com/uploads/1/3/0/7/130775383/nizejab.pdf
    • http://files.thirdcinemaproductions.com/uploads/1/3/1/3/131379749/sonazez.pdf
    • http://files.tryingtofly.net/uploads/1/3/1/4/131438499/litapataxutor-wizarif.pdf
    • http://files.breedingforthefuture.com/uploads/1/3/2/6/132681566/sutavumuz.pdf
    • http://files.cyclingadventures.net/uploads/1/3/2/6/132695689/sulexovabub_bubizelogu_mekodovi_pinuvawenun.pdf
    • http://files.danbrinsmead.com/uploads/1/3/2/6/132695881/banulojipoj.pdf
    • http://files.ncam.ac.nz/uploads/1/3/0/7/130776788/a94fe6a1c2f25a.pdf
    • http://files.conversazioniconilventre.com/uploads/1/3/2/7/132740412/d7430d4c.pdf
    • https://kejijewuna.files.wordpress.com/2020/06/19554065676.pdf
    • https://dekogowilow.files.wordpress.com/2020/06/24719824826.pdf
    • https://rofatekarem.files.wordpress.com/2020/06/fazatalo.pdf
    • https://newomigefixe.files.wordpress.com/2020/06/xufonubureji.pdf
    • https://rezoketup.files.wordpress.com/2020/06/raxivaxozik.pdf
    • https://kapavefewo.files.wordpress.com/2020/06/biwemofelosepikulamavo.pdf
    • https://nedetepu.files.wordpress.com/2020/07/wupazozezed.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/69892687871.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/gejazopemovaro.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/sovir.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/94662163826.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/19252536586.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/49816413057.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/damegadunuje.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000053b8.bin
d0268685ce78443ef8f47be5a4b35a6ecaf793c925ad15bd2bd2ff5a9944c71e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x53B8 3184 bytes
font_01_sfnt_off00005f0e.bin
c9d1865e22752692951ec44385899bde22444565e7cf007fa850846c7348280f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5F0E 5324 bytes
font_02_sfnt_off000070d8.bin
7a02da73c5ff24218d04b188db7d31ceb9303d5dedd43b645f18a615a19d9b6a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x70D8 6068 bytes
font_03_sfnt_off00008088.bin
aa9ae260de7a78f2e2ebdf828bdf6fe6074227acaa357fc653479ce5753279df		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8088 9880 bytes

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