Malicious PDF — malware analysis report

Static analysis result for SHA-256 ccb69823516a292b…

MALICIOUS

PDF

93.3 KB Created: 2020-08-19 01:03:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 77eb61f3798c6600d9aca9f51955fb89 SHA-1: 7c473087895c92085e1640bc8ef7622822b2f327 SHA-256: ccb69823516a292b844fb84a820648f57f2736c3b601f911d7582217e27c0460
120 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded links, identified as a link farm. One of these links, https://ttraff.com/pify?keyword=starch+branching+enzyme+isoforms, is flagged as a malicious redirector. This suggests the document's primary purpose is to lure users to malicious sites, likely for phishing or to download further malware. No scripts were extracted, limiting the analysis of direct execution capabilities.

Heuristics 3

  • 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.
  • 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=starch+branching+enzyme+isoforms
    • http://files.cheeramore.co.nz/uploads/1/3/0/7/130775916/8431772.pdf
    • http://files.mcneillcustomfurniture.com/uploads/1/3/2/6/132682471/9d83f9813c084.pdf
    • http://nixerol.genjaxmedia.com/uploads/1/3/1/8/131871597/sarizekumutatev.pdf
    • https://cdn.shopify.com/s/files/1/0430/0472/3349/files/44619723639.pdf
    • https://cdn.shopify.com/s/files/1/0433/7883/5606/files/bartolinite_aguda_tratamento.pdf
    • https://cdn.shopify.com/s/files/1/0428/9862/0569/files/zitoxafure.pdf
    • https://cdn.shopify.com/s/files/1/0437/4672/1946/files/41281617763.pdf
    • https://cdn.shopify.com/s/files/1/0435/6295/9006/files/44475061548.pdf
    • https://cdn.shopify.com/s/files/1/0434/9558/8002/files/pain_apperception_test.pdf
    • https://cdn.shopify.com/s/files/1/0434/2077/8653/files/pashto_new_audio_song_2019.pdf
    • https://cdn.shopify.com/s/files/1/0437/2506/2298/files/39344276681.pdf
    • https://cdn.shopify.com/s/files/1/0431/0378/1015/files/63919955400.pdf
    • https://cdn.shopify.com/s/files/1/0431/7646/0447/files/89721284449.pdf
    • https://cdn.shopify.com/s/files/1/0434/5731/4983/files/preeclampsia_guidelines.pdf
    • https://cdn.shopify.com/s/files/1/0433/3407/4523/files/26952285601.pdf
    • https://cdn.shopify.com/s/files/1/0429/0222/5059/files/75267789639.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_off000113b3.bin
e403db42d5a333114e358cd380e3d4174ded0fb669e784d3e670c5d4c825b0ce
pdf-font-stream PDF embedded font (sfnt) at offset 0x113B3 5656 bytes
font_01_sfnt_off000126d2.bin
9a061ffbeb9a1bd8920bcb3779656dc3f95a76c58456d58c304edf7be79cf3e3
pdf-font-stream PDF embedded font (sfnt) at offset 0x126D2 13460 bytes
font_02_sfnt_off000152bc.bin
49436f94d5abf10ca6af8af9848174aab82dfe7bc58a5146411d238fd5c76648
pdf-font-stream PDF embedded font (sfnt) at offset 0x152BC 16148 bytes