Malicious PDF — malware analysis report

Static analysis result for SHA-256 a416a11a159bc428…

MALICIOUS

PDF

50.4 KB Created: 2020-09-08 01:07:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6b2ffb0fe11e9c4e19af290377388597 SHA-1: 90d4cecd93a0ba0236477a0af16b6dcd4b09b046 SHA-256: a416a11a159bc428eb4a04ff50c1ece4747f844a5f9593271277c083e3c781fd
128 Risk Score

Malware Insights

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

The PDF contains a link disguised as a manual ebook, which is a common lure for phishing or malware delivery. The heuristic 'PDF_MALICIOUS_REDIRECTOR_LINK' confirms that the primary link leads to known malicious redirector infrastructure. The heuristic 'PDF_SEO_LINK_FARM' indicates the PDF is part of a larger scheme to generate traffic, likely for SEO manipulation or to host malicious content. No scripts were extracted from this sample.

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.link/wix?keyword=basic+life+support%2528+bls+provider+manual+ebook
    • https://static.usrfiles.com/ugd/f59309_3653ba2c84924e839fa0a9704b24d910.pdf
    • https://static.usrfiles.com/ugd/c345b0_05a09a7aff2f4fa098bb619c1844edba.pdf
    • https://static.usrfiles.com/ugd/dcfb95_c3529b3296904a86bf1cd71f0d62c73a.pdf
    • https://static.usrfiles.com/ugd/0ebc1f_e1d8d540e774467b87b462293c9d0b1d.pdf
    • https://static.usrfiles.com/ugd/d954c5_b335641d8fc644828070cc498bc77992.pdf
    • https://static.usrfiles.com/ugd/0ad6c7_416e9b5e3f74482e9f3c5ec4c11a5301.pdf
    • https://cdn.shopify.com/s/files/1/0438/4351/8614/files/teaching_music_through_performance_in_band.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/65817182127.pdf
    • https://cdn.shopify.com/s/files/1/0432/2990/5058/files/college_diploma_template.pdf
    • https://cdn.shopify.com/s/files/1/0437/2905/9991/files/treasure_bruno_mars_lyrics.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/lafiku.pdf
    • https://cdn.shopify.com/s/files/1/0438/2310/4162/files/acute_leukemia_treatment_guidelines.pdf
    • https://cdn.shopify.com/s/files/1/0462/5891/3431/files/jowabiwusujaso.pdf
    • https://cdn.shopify.com/s/files/1/0447/8582/7991/files/annotate_ipad_onenote.pdf
    • https://cdn.shopify.com/s/files/1/0436/9013/1609/files/ccass_operational_procedures.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/
    • https://cdn.shopify.com/s/files/1/0438/4351/8614/files/teaching_mus

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007d0c.bin
16dfedccf498276706581b222d539ef9ec6a09e91246576d3ac6e75610fc9c2d
pdf-font-stream PDF embedded font (sfnt) at offset 0x7D0C 5692 bytes
font_01_sfnt_off0000905a.bin
51ebeec29509b87aa858d500e37ac8853184703d07d1f913ce36d8e1dc7764c0
pdf-font-stream PDF embedded font (sfnt) at offset 0x905A 1800 bytes
font_02_sfnt_off000098e8.bin
c4def080fd93c81fdd2494a567eb36a8169243d440a83bb6a643cec51639f187
pdf-font-stream PDF embedded font (sfnt) at offset 0x98E8 10120 bytes