Malicious PDF — malware analysis report

Static analysis result for SHA-256 b7ec5f5a255d5c01…

MALICIOUS

PDF

48.2 KB Created: 2020-07-22 09:05:48 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 916066f818514049c39bb292c0678463 SHA-1: 090a1a7cc0337bc722054ee756bfa6848d15065a SHA-256: b7ec5f5a255d5c0188bbf07770b9265f1f1d7d29bd298d6d47f82783b29b766c
140 Risk Score

Malware Insights

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

The PDF file contains heuristics indicating it is a malicious redirector and part of a link farm, with one primary URL pointing to known malicious infrastructure. The document body, though heavily obfuscated, suggests a lure related to a 'broiler production manual pdf'. The presence of numerous external PDF links, many hosted on Shopify, further supports the link farm heuristic. The primary malicious URL is ttraff.com, which is flagged as a redirector.

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=broiler+production+manual+pdf
    • http://files.citizenkenn.com/uploads/1/3/1/4/131438541/xoveriboje-sozukib-vemomizo-jivorixubek.pdf
    • http://files.pacettibayptso.org/uploads/1/3/1/3/131398159/de27f09606.pdf
    • http://files.stonybrookenquirer.com/uploads/1/3/2/6/132696465/fiwokeborab_bowumaporuxanaj_jojupazop_lewosusep.pdf
    • http://files.ngmfpn.com/uploads/1/3/0/9/130969686/5578466.pdf
    • http://files.ci
    • https://cdn.shopify.com/s/files/1/0428/4442/2310/files/jiram.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/27622062760.pdf
    • https://cdn.shopify.com/s/files/1/0430/1049/0519/files/2248499.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/12410546401.pdf
    • https://cdn.shopify.com/s/files/1/0438/0576/9888/files/74474025991.pdf
    • https://fugikesewe.files.wordpress.com/2020/06/28698300666.pdf
    • https://ratumiratox.files.wordpress.com/2020/07/72763117420.pdf
    • https://bafuximafeza467793456.files.wordpress.com/2020/07/38147090723.pdf
    • https://resofev.files.wordpress.com/2020/06/mibitiguwelunuvoris.pdf
    • https://cdn.shopify.com/s/files/1/0430/9496/6429/files/fubogidufibovotojomojilo.pdf
    • https://cdn.shopify.com/s/files/1/0427/9926/8003/files/78673385726.pdf
    • https://cdn.shopify.com/s/files/1/0430/2408/9242/files/begaziwaxativab.pdf
    • https://cdn.shopify.com/s/files/1/0428/3501/7895/files/70955863214.pdf
    • https://cdn.shopify.com/s/files/1/0431/7996/6628/files/51529284958.pdf
    • https://cdn.shopify.com/s/files/1/0430/5721/7693/files/gifidavusezexupowuz.pdf
    • https://cdn.shopify.com/s/files/1/0433/0999/0043/files/582809153.pdf
    • https://cdn.shopify.com/s/files/1/0432/3006/8894/files/30122572028.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_off00008061.bin
d4157f01f6ecf09efb263a5ff2adf3d4ca62b0161d5ba5fe8fa0a97634f51995		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8061 5052 bytes
font_01_sfnt_off0000916b.bin
c9f29162be0852e41dc809fb80d1718fab67ddff9e7140bb6d172db089a45ba7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x916B 9908 bytes

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