Malicious PDF — malware analysis report

Static analysis result for SHA-256 cf5b65f41d9865b5…

MALICIOUS

PDF

58.5 KB Created: 2020-09-01 02:36:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: a14ce8ae174932a99a55dedc165f5318 SHA-1: 73db438df420f7657b4eb1d60d927884cc57dada SHA-256: cf5b65f41d9865b54cf809ae344dca2c8c2f90a423259772bc87c8b6d07a2bf0
140 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, ttraff.com, which is likely used to obscure the final destination of the malicious payload. Additionally, the document exhibits characteristics of a link farm, with numerous embedded links to Shopify domains, suggesting an attempt to manipulate search engine results or distribute further malicious content. The presence of a callback lure further indicates a phishing or social engineering attempt.

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/wix?keyword=complaint+handling+guidelines+bnm
    • https://cdn.shopify.com/s/files/1/0428/9301/7247/files/23371743020.pdf
    • https://cdn.shopify.com/s/files/1/0449/8112/5278/files/buy_buildbox_templates.pdf
    • https://cdn.shopify.com/s/files/1/0431/3609/0273/files/49177236261.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/20597849085.pdf
    • https://cdn.shopify.com/s/files/1/0437/5488/1185/files/resident_evil_4_gamecube_rom.pdf
    • https://cdn.shopify.com/s/files/1/0428/5808/6556/files/bolt_standard_sizes.pdf
    • https://cdn.shopify.com/s/files/1/0433/0858/1019/files/9983601789.pdf
    • https://cdn.shopify.com/s/files/1/0434/0557/4309/files/33341342704.pdf
    • https://cdn.shopify.com/s/files/1/0438/4138/8704/files/66233331392.pdf
    • https://cdn.shopify.com/s/files/1/0434/8503/6706/files/1743165499.pdf
    • https://cdn.shopify.com/s/files/1/0431/9356/5342/files/31798086116.pdf
    • https://cdn.shopify.com/s/files/1/0430/1550/4029/files/vuxiraxokekolu.pdf
    • https://cdn.shopify.com/s/files/1/0437/6444/9437/files/sowabu.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/gidawibozifuniji.pdf
    • https://cdn.shopify.com/s/files/1/0433/3636/8283/files/designated_survivor_2_episode_guide.pdf
    • https://cdn.shopify.com/s/files/1/0438/0616/3104/files/zatiniwo.pdf
    • https://cdn.shopify.com/s/files/1/0435/4365/8650/files/47791165212.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/wifufokamavobopizevotug.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_off00009acc.bin
d9a323b11195918492ee025aa83b1a73aeab733088d590fffd60e6d23eacda36
pdf-font-stream PDF embedded font (sfnt) at offset 0x9ACC 5324 bytes
font_01_sfnt_off0000acb2.bin
97989c59f948cb98acc8f39e19801df7ca99761d14be9dde30275a5bd4232c78
pdf-font-stream PDF embedded font (sfnt) at offset 0xACB2 9992 bytes
font_02_sfnt_off0000cee6.bin
d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378
pdf-font-stream PDF embedded font (sfnt) at offset 0xCEE6 4324 bytes