Malicious PDF — malware analysis report

Static analysis result for SHA-256 fa12a61eeadac6e9…

MALICIOUS

PDF

52.9 KB Created: 2020-08-05 07:40:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: b1c605d874b11f2d5466a381ad939f44 SHA-1: d0b5015a396883b4108200eafd58143c347cf2aa SHA-256: fa12a61eeadac6e98f25044f4337fcb97c649772cd2526075cc92cdcb1068329
136 Risk Score

Malware Insights

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

The PDF file contains multiple embedded links, with one critical heuristic firing indicating a link to known malicious redirector infrastructure. The document body and heuristics suggest a lure to click a download button, leading to the malicious URL. The file is likely a downloader or phishing lure.

Heuristics 5

  • 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
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=ldc+answer+key+2020+pdf+16+sep
    • http://files.voices-in-time.net/uploads/1/3/1/0/131070845/logizirivopar-nikumifusutuf-pijosel-kulusejirop.pdf
    • http://files.witneyhypnotherapy.co.uk/uploads/1/3/1/4/131408415/toputonijusok.pdf
    • http://files.milanibowhunting.com/uploads/1/3/2/6/132681865/fetijelajuzuzo.pdf
    • https://cdn.shopify.com/s/files/1/0435/5624/1557/files/21813163706.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/14981909947.pdf
    • https://cdn.shopify.com/s/files/1/0450/0160/5278/files/ibm_hr_interview_questions_and_answers_for_freshers.pdf
    • https://cdn.shopify.com/s/files/1/0434/0937/5383/files/46104090646.pdf
    • https://cdn.shopify.com/s/files/1/0440/2659/3445/files/81644501382.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/32377204601.pdf
    • https://cdn.shopify.com/s/files/1/0428/2161/5775/files/vufolufa.pdf
    • https://cdn.shopify.com/s/files/1/0431/1960/7962/files/62685058341.pdf
    • https://cdn.shopify.com/s/files/1/0429/6150/2362/files/xizonos.pdf
    • https://cdn.shopify.com/s/files/1/0436/0772/0094/files/71499812342.pdf
    • https://cdn.shopify.com/s/files/1/0430/5272/8474/files/85059526729.pdf
    • https://cdn.shopify.com/s/files/1/0434/9755/4084/files/suvatatunem.pdf
    • https://cdn.shopify.com/s/files/1/0434/3191/9765/files/vuvawaja.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_off0000797f.bin
75848bcd9c11f19040da7b10409ed801e2ba0413a52831910fc5dc15ad832cd5
pdf-font-stream PDF embedded font (sfnt) at offset 0x797F 5796 bytes
font_01_sfnt_off00008d6f.bin
51fff5b869bca8a9f7f1871e9ac670a44e4133c1f68882631871aa042a21a427
pdf-font-stream PDF embedded font (sfnt) at offset 0x8D6F 10472 bytes
font_02_sfnt_off0000b137.bin
d8c19fdfeecd64e832dd8c9352b1260cc303b71c54455e55e6a3d621321cf58b
pdf-font-stream PDF embedded font (sfnt) at offset 0xB137 16072 bytes