Malicious PDF — malware analysis report

Static analysis result for SHA-256 b04b78fc8264afa5…

MALICIOUS

PDF

42.7 KB Created: 2020-08-14 10:56:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 1c16104ff10c0822a4b036330ea202b9 SHA-1: afd264a9306fbe4f5391057133d415f5739e80e9 SHA-256: b04b78fc8264afa594cfe3f5d8dffd90b600be4be70c703ea67a2cb12a1cffef
128 Risk Score

Malware Insights

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

The PDF file contains a link farm and a critical PDF_MALICIOUS_REDIRECTOR_LINK heuristic firing, indicating it directs users to malicious infrastructure. The document body, though heavily corrupted, contains the URL "https://ttraff.cc/pify?keyword=hydraulic+jack+project+report", which is likely the primary malicious payload delivery mechanism. The presence of numerous external PDF links suggests an attempt to manipulate search engine results or distribute further malicious content.

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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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=hydraulic+jack+project+report
    • http://files.oostingsfurniture.com/uploads/1/3/0/7/130776416/nejovugu_zalurexafivutab_safumunutupuf_nakepanixiral.pdf
    • http://files.naturalmedicinecolchester.co.uk/uploads/1/3/1/6/131607662/873654.pdf
    • http://files.youcanchangeeducation.org/uploads/1/3/2/6/132682892/vixavimitubalu_pukuv_pakuj_rodifuwaxison.pdf
    • http://juzinekok.wingsdance.com/uploads/1/3/1/4/131408899/fiwilexato-babawapojizu-wipiniwaxa-mavofekirolo.pdf
    • https://cdn.shopify.com/s/files/1/0430/0197/0837/files/daylight_motors_beaumont_tx.pdf
    • https://cdn.shopify.com/s/files/1/0434/6563/8050/files/calculus_full_course.pdf
    • https://cdn.shopify.com/s/files/1/0429/4495/4527/files/39724923246.pdf
    • https://cdn.shopify.com/s/files/1/0429/4849/3475/files/ancient_greece_history.pdf
    • https://cdn.shopify.com/s/files/1/0432/7879/4917/files/15618204928.pdf
    • https://cdn.shopify.com/s/files/1/0434/7605/8274/files/mojumidod.pdf
    • https://cdn.shopify.com/s/files/1/0435/2717/6343/files/blockchain_revolution_senai.pdf
    • https://cdn.shopify.com/s/files/1/0428/2515/4716/files/job_interview_conversation_between_interviewer_and_interviewee.pdf
    • https://cdn.shopify.com/s/files/1/0434/5869/1232/files/ielts_speaking_makkar_download.pdf
    • https://cdn.shopify.com/s/files/1/0448/4559/6834/files/software_update_android_samsung_j5.pdf
    • https://cdn.shopify.com/s/files/1/0433/4324/9563/files/norim.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_off00006959.bin
f40a5f1205848b9a5e63faea12e97097c61facd2a6e59146428e6358d028d9b3
pdf-font-stream PDF embedded font (sfnt) at offset 0x6959 5092 bytes
font_01_sfnt_off00007aba.bin
85a14ba19be25b977e3f9a3b02496296651addf56c27a9f22c24e5903a36a491
pdf-font-stream PDF embedded font (sfnt) at offset 0x7ABA 10332 bytes