Malicious PDF — malware analysis report

Static analysis result for SHA-256 dae34c113ea17e67…

MALICIOUS

PDF

44.0 KB Created: 2020-08-02 17:24:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: d6c39501b344b34acf22c3667235bdf0 SHA-1: c936560bc091ab21f9d6821dd8cf3b82c2b97764 SHA-256: dae34c113ea17e678af3dbe2f2cafbda74909aa54a145b7985d0ba2ecc1d1e93
160 Risk Score

Malware Insights

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

The PDF file contains a link farm and a specific malicious redirector URL, disguised with keywords related to a popular game mod. The 'SE_CLICKFIX' heuristic indicates that the document likely instructs the user to execute a command, a common social engineering tactic to bypass security measures. The primary malicious URL identified is https://ttraff.cc/pify?keyword=minecraft+too+many+items+mod, which redirects to a benign Shopify URL, suggesting a multi-stage redirection process.

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.
  • ClickFix social engineering attack high SE_CLICKFIX
    Document instructs the user to press Win+R or paste a command into a terminal — consistent with ClickFix attacks that bypass macro restrictions by tricking users into running malicious commands directly
  • 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/pify?keyword=minecraft+too+many+items+mod
    • http://files.creative-sportsconcepts.com/uploads/1/3/1/4/131453068/6296509.pdf
    • http://files.vaco-op.com/uploads/1/3/0/7/130776164/4af148d73.pdf
    • http://files.winstonawilson.com/uploads/1/3/1/3/131383456/gadufuviso_gewewo_tatumalofidor.pdf
    • http://files.evertimely.com/uploads/1/3/0/7/130775704/tasulelike_buwefosa_lotuni.pdf
    • http://files.bigskycafe.net/uploads/1/3/0/7/130775795/9427104.pdf
    • https://cdn.shopify.com/s/files/1/0435/2560/3488/files/nuratoronogosifonobokiso.pdf
    • https://cdn.shopify.com/s/files/1/0427/4143/2487/files/xusavele.pdf
    • https://cdn.shopify.com/s/files/1/0431/7354/4093/files/dafipogamaxap.pdf
    • https://cdn.shopify.com/s/files/1/0430/3002/0247/files/zuvebopipunawudiwonaged.pdf
    • https://cdn.shopify.com/s/files/1/0436/3865/3086/files/4217992169.pdf
    • https://cdn.shopify.com/s/files/1/0429/8375/1831/files/13756552698.pdf
    • https://cdn.shopify.com/s/files/1/0439/7904/7070/files/nojumixapinu.pdf
    • https://cdn.shopify.com/s/files/1/0432/9802/9733/files/monsters_manual_5e.pdf
    • https://cdn.shopify.com/s/files/1/0431/1947/6896/files/nufizudirebu.pdf
    • https://cdn.shopify.com/s/files/1/0430/3319/8745/files/tojivofala.pdf
    • https://cdn.shopify.com/s/files/1/0431/1311/9905/files/nibofatoliju.pdf
    • https://cdn.shopify.com/s/files/1/0430/0485/4426/files/fofet.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_off00006177.bin
9a433f13b45102e97efbaae0fda2ef90a61001469fba74d77550a2fb30bdee5b
pdf-font-stream PDF embedded font (sfnt) at offset 0x6177 5032 bytes
font_01_sfnt_off0000727b.bin
cb91fd93647d9e452363b144c27b2131559c733861524c9645a8b551c84e865c
pdf-font-stream PDF embedded font (sfnt) at offset 0x727B 10140 bytes
font_02_sfnt_off00009517.bin
9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2
pdf-font-stream PDF embedded font (sfnt) at offset 0x9517 4324 bytes