Malicious PDF — malware analysis report

Static analysis result for SHA-256 bf8326a77abbe6d9…

MALICIOUS

PDF

43.8 KB Created: 2020-08-06 02:27:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 80974b0eb4c2eea1cf0fee76a9be9151 SHA-1: ec5fb1a6e3de5eacedb1468d8994d830da1052db SHA-256: bf8326a77abbe6d9a3984e29f8cd3078f1e46fd7e8dd687008285e2dac26113f
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment 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, indicating a large number of external links, many hosted on Shopify. The embedded URL in the document body also points to the same malicious redirector. The primary intent appears to be redirecting the user to a malicious site.

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=project+rationale+example+pdf
    • http://rakid.milestonepediatrictherapy.com/uploads/1/3/0/7/130740178/nigelejup-ribeze.pdf
    • http://files.omanroadshow.com/uploads/1/3/0/7/130776841/kasulojemuv.pdf
    • http://files.despinabphotography.com/uploads/1/3/0/8/130873927/jekelutozoxefenebo.pdf
    • https://cdn.shopify.com/s/files/1/0429/7667/3946/files/62328266563.pdf
    • https://cdn.shopify.com/s/files/1/0433/3928/4645/files/40810551842.pdf
    • https://cdn.shopify.com/s/files/1/0428/4134/2108/files/70020201732.pdf
    • https://cdn.shopify.com/s/files/1/0431/2642/3708/files/nogomewowuwe.pdf
    • https://cdn.shopify.com/s/files/1/0430/3018/4098/files/ffxiv_enable_city-_state_bgm.pdf
    • https://cdn.shopify.com/s/files/1/0432/5310/4790/files/best_csgo_trading_sites.pdf
    • https://cdn.shopify.com/s/files/1/0441/0572/8152/files/beladerofoje.pdf
    • https://cdn.shopify.com/s/files/1/0435/5021/2264/files/academic_journal_examples.pdf
    • https://cdn.shopify.com/s/files/1/0434/0829/4044/files/bubikekexu.pdf
    • https://cdn.shopify.com/s/files/1/0441/0081/2952/files/passive_voice_continuous_tense_exercises.pdf
    • https://cdn.shopify.com/s/files/1/0432/9052/5849/files/rivuz.pdf
    • https://cdn.shopify.com/s/files/1/0430/0311/7719/files/59118996492.pdf
    • https://cdn.shopify.com/s/files/1/0429/1588/9305/files/52846891377.pdf
    • https://cdn.shopify.com/s/files/1/0429/7385/5903/files/70314736879.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_off00006db0.bin
6ab4fac78e06b272b73ecf89ed121581564b7edb0b5fb7d68a051568fffc6b0a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6DB0 5268 bytes
font_01_sfnt_off00007f92.bin
238558db76dc4ad1270e94898d345bda774586e9b9d39a34899233ede69521fb		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7F92 10072 bytes

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