Malicious PDF — malware analysis report

Static analysis result for SHA-256 bbc0cc4d979c79ad…

MALICIOUS

PDF

45.5 KB Created: 2020-08-11 19:36:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 65d12f9045775e77215d6405f3411afd SHA-1: db6c04177376ee14ee1df69b5f33361d8501d877 SHA-256: bbc0cc4d979c79adcc32409eac15000bc492ade954dd8a78b68332a3c2c1037e
120 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, ttraff.com, which is disguised as an application for a teaching job. The document also features a large number of external PDF links, many hosted on Shopify, suggesting a link farm or SEO poisoning tactic. No scripts were extracted, but the presence of malicious redirector links indicates a phishing or social engineering attempt.

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.com/pify?keyword=application+for+teaching+job+in+english+pdf
    • http://dorajutid.arlingtonmsband.com/uploads/1/3/0/7/130775734/2dd0f7.pdf
    • http://files.bendtrendhomes.com/uploads/1/3/2/7/132740361/bowisewu.pdf
    • http://files.gbyws.org/uploads/1/3/2/7/132740285/vinamepuzeg-nefupojinagijux.pdf
    • http://files.wviolin.com/uploads/1/3/0/8/130814043/f25c3da78c0.pdf
    • http://files.fleurdelightflorals.net/uploads/1/3/1/4/131406893/263cd.pdf
    • https://cdn.shopify.com/s/files/1/0428/7994/2812/files/chorioamnionitis_rcog.pdf
    • https://cdn.shopify.com/s/files/1/0429/4161/2199/files/bozudo.pdf
    • https://cdn.shopify.com/s/files/1/0432/6211/6008/files/12410885911.pdf
    • https://cdn.shopify.com/s/files/1/0432/9861/9557/files/49430065532.pdf
    • https://cdn.shopify.com/s/files/1/0435/5738/8437/files/fuxugolajunanudebet.pdf
    • https://cdn.shopify.com/s/files/1/0433/5733/9800/files/nadabobelaxuxonona.pdf
    • https://cdn.shopify.com/s/files/1/0432/3858/8584/files/four_stroke_performance_tuning.pdf
    • https://cdn.shopify.com/s/files/1/0437/2122/8440/files/advertising_management.pdf
    • https://cdn.shopify.com/s/files/1/0428/8957/6601/files/63200646261.pdf
    • https://cdn.shopify.com/s/files/1/0432/6939/0500/files/42461363763.pdf
    • https://cdn.shopify.com/s/files/1/0433/6661/3141/files/bukhari_shareef_arabic.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_off00007365.bin
5feaa1d1f01efbddd0fe6b829576800bbff87664275bf35ad461affe24641199		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7365 5624 bytes
font_01_sfnt_off00008671.bin
46928442825911278b2c00a62715023c1a46ce87ad0d309e3d82db3c3c1a4d7a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8671 10016 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.