Malicious PDF — malware analysis report

Static analysis result for SHA-256 1da01b22fc86388b…

MALICIOUS

PDF

80.9 KB Created: 2020-08-22 14:05:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 613e7edb69dd684e1bc59ebeb3379cad SHA-1: a1c70835c473396411732f466adbcf76f98e072a SHA-256: 1da01b22fc86388b5725dfec0ed00f09e5485f4ff93e8370bdea51419f243312
140 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.com'. Additionally, it exhibits a PDF link farm heuristic, with many links pointing to Shopify domains, one of which is also listed as an IOC. The document body, though heavily obfuscated, contains the same malicious URL. The 'SE_CALLBACK_LURE' heuristic suggests a phishing or tech-support scam pretext, further supported by the presence of a malicious URL.

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=android+bitmap.+createbitmap+example
    • http://files.jakecassarbushcraft.com/uploads/1/3/1/4/131407635/watowubuf-kizewujedirena-pemixupop-fokenidevomo.pdf
    • http://nuzakiwur.campbellbarnescounseling.com/uploads/1/3/2/7/132740978/1595769.pdf
    • http://jufepad.mathiascompanies.com/uploads/1/3/1/3/131379641/1cd7231a3b.pdf
    • https://cdn.shopify.com/s/files/1/0429/6366/5055/files/93729955974.pdf
    • https://cdn.shopify.com/s/files/1/0438/9902/7611/files/a_field_guide_to_american_houses.pdf
    • https://cdn.shopify.com/s/files/1/0432/2977/3979/files/wajapitaran.pdf
    • https://cdn.shopify.com/s/files/1/0445/6975/5812/files/anglers_choice_guide_service_presque_isle_wi.pdf
    • https://cdn.shopify.com/s/files/1/0428/6880/1702/files/creeper_farm_bedrock.pdf
    • https://cdn.shopify.com/s/files/1/0440/9350/5688/files/xomitowiteponasuguzu.pdf
    • https://cdn.shopify.com/s/files/1/0439/6577/6030/files/duvuwatew.pdf
    • https://cdn.shopify.com/s/files/1/0432/7574/7491/files/89995072329.pdf
    • https://cdn.shopify.com/s/files/1/0430/8326/8257/files/79403515619.pdf
    • https://cdn.shopify.com/s/files/1/0427/8406/3654/files/40302212216.pdf
    • https://cdn.shopify.com/s/files/1/0431/0522/2818/files/blue_bead_story.pdf
    • https://cdn.shopify.com/s/files/1/0432/7607/5164/files/bet_angel_user_guide.pdf
    • https://cdn.shopify.com/s/files/1/0430/0819/6767/files/50637740875.pdf
    • https://cdn.shopify.com/s/files/1/0429/4334/8892/files/posejuj.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_off0000e358.bin
5b773d8e5deca4905775b3e522eac30f133712b899693ca56cc57956be2b3078		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE358 5060 bytes
font_01_sfnt_off0000f466.bin
81891aad494430e4afd9c74026bfc59b39e39fcf16b1467d01a3ac8fb2f03193		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF466 15868 bytes
font_02_sfnt_off00012646.bin
1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x12646 4324 bytes

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