Malicious PDF — malware analysis report

Static analysis result for SHA-256 c2cebdb1a8d4f03b…

MALICIOUS

PDF

48.1 KB Created: 2020-08-21 05:40:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 73d64872010e21176949bc596fdbb158 SHA-1: 2591ddcc442788926d6a8eeadc899f810ad82332 SHA-256: c2cebdb1a8d4f03bdf1298c5037f779c81b7eba050c8929096bf99da4eee83f9
140 Risk Score

Malware Insights

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

The PDF contains a lure for a fake admission form, directing users to a malicious URL. The heuristic PDF_MALICIOUS_REDIRECTOR_LINK confirms the link leads to known malicious infrastructure. Additionally, the PDF_SEO_LINK_FARM heuristic indicates a large number of outbound links, many hosted on cdn.shopify.com, suggesting a broad distribution effort. The SE_CALLBACK_LURE heuristic further supports a phishing or scam pretext.

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.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns
  • 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=bareilly+college+admission+form+2018
    • http://files.stjosephmusic.org/uploads/1/3/1/1/131164552/7bfd8f5.pdf
    • http://files.stevenstackplaywright.com/uploads/1/3/1/4/131453574/vejogogisogira.pdf
    • http://files.nextprepkids.com/uploads/1/3/0/7/130775762/b628066a.pdf
    • http://files.cbskilkennydevelopment.com/uploads/1/3/0/8/130814052/rewekopokaranewi.pdf
    • https://cdn.shopify.com/s/files/1/0428/9780/1375/files/joint_commission_international_library_of_measures.pdf
    • https://cdn.shopify.com/s/files/1/0437/0812/1242/files/wilamosikonujexawi.pdf
    • https://cdn.shopify.com/s/files/1/0438/0521/2832/files/journal_of_physics_conference_series_latex_template.pdf
    • https://cdn.shopify.com/s/files/1/0430/5446/5175/files/different_types_of_bullying.pdf
    • https://cdn.shopify.com/s/files/1/0432/6283/6891/files/kasopatilidixukinido.pdf
    • https://cdn.shopify.com/s/files/1/0433/6759/6184/files/lerasifurejajumavu.pdf
    • https://cdn.shopify.com/s/files/1/0431/7098/8188/files/guitar_arpeggios_tabs.pdf
    • https://cdn.shopify.com/s/files/1/0434/4122/5880/files/chinese_auricular_therapy.pdf
    • https://cdn.shopify.com/s/files/1/0433/9980/7126/files/40572325172.pdf
    • https://cdn.shopify.com/s/files/1/0433/1254/5950/files/feripaxeb.pdf
    • https://cdn.shopify.com/s/files/1/0428/7938/5766/files/32530987373.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_off00006407.bin
2ce53193d08af64882d4bc0ca73980d85eaf6f577e1228fd2719572b91650e2d
pdf-font-stream PDF embedded font (sfnt) at offset 0x6407 6012 bytes
font_01_sfnt_off0000786f.bin
987c591763a122f26f811429eead3df575f33bb7cefd71bdffa798b24b8143d8
pdf-font-stream PDF embedded font (sfnt) at offset 0x786F 11368 bytes
font_02_sfnt_off00009df7.bin
6e3fbd491d8b71441998836ddca0d0c102716a221ea14f8143929167ad9a79b3
pdf-font-stream PDF embedded font (sfnt) at offset 0x9DF7 16164 bytes