Malicious PDF — malware analysis report

Static analysis result for SHA-256 e151c10c3b92e646…

MALICIOUS

PDF

55.5 KB Created: 2020-08-18 23:48:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 694cc3e7c50ce446a03dbeebe30fa407 SHA-1: 7b155da8c919feb80cf2886413580634aac3b243 SHA-256: e151c10c3b92e6469a50d74c4b2e89a22fe40f57bb0e78053359bf65a1e1ed88
148 Risk Score

Malware Insights

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

The PDF contains multiple embedded links, with one identified as a malicious redirector pointing to 'ttraff.com'. The document body, though partially corrupted, contains the same URL and references a 'tradesman answer key', suggesting a lure. The presence of a call-to-action phrase and a callback lure heuristic further supports a malicious intent, likely to redirect users to a phishing site or download further malware.

Heuristics 5

  • 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
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=bsf.+nic.+in+2019+answer+key+tradesman
    • http://files.ficgn.org/uploads/1/3/0/7/130739253/1830149.pdf
    • http://files.indyofficelistings.com/uploads/1/3/1/3/131397940/zabexidisibozuzumev.pdf
    • http://files.gentlemamaholisticmidwifery.com/uploads/1/3/0/7/130775647/4d07ba6847.pdf
    • http://files.sophiagardiner.com/uploads/1/3/1/8/131856627/8428220.pdf
    • https://cdn.shopify.com/s/files/1/0437/6156/5850/files/pewut.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/gowaluzefep.pdf
    • https://cdn.shopify.com/s/files/1/0431/7816/4384/files/61576953069.pdf
    • https://cdn.shopify.com/s/files/1/0427/4490/5884/files/90941072377.pdf
    • https://cdn.shopify.com/s/files/1/0433/9187/7283/files/55698598708.pdf
    • https://cdn.shopify.com/s/files/1/0436/5985/3977/files/kukijimaditixa.pdf
    • https://cdn.shopify.com/s/files/1/0432/3685/1874/files/31296794247.pdf
    • https://cdn.shopify.com/s/files/1/0438/0976/7584/files/831311482.pdf
    • https://cdn.shopify.com/s/files/1/0431/2301/5841/files/bipolar_questionnaire_black_dog.pdf
    • https://cdn.shopify.com/s/files/1/0429/6137/1290/files/a_whole_new_world_piano_sheet_music_free.pdf
    • https://cdn.shopify.com/s/files/1/0437/2427/5863/files/butterball_turkey_fryer_instructions.pdf
    • https://cdn.shopify.com/s/files/1/0437/6349/9159/files/21552685873.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006f29.bin
54bc31ff667ff150256004dd9feada25cb86cab31c6a1905a9d98fa24860ed07		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6F29 5956 bytes
font_01_sfnt_off00008377.bin
6fa2d3ad8ce0fded997024ac3c5f8a3eb1514dd5d1934f1605d70e03ddfe592c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8377 10616 bytes
font_02_sfnt_off0000a7e4.bin
301fb2f14aa1e9a5cf8540ebf40f17e8311eb9ba756e1d76589e408feb703965		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA7E4 16096 bytes
font_03_sfnt_off0000bce6.bin
07fdce29cd35db0004c0d993836438cb80f74ed6d2da3be6acccf805b1e6bb68		 pdf-font-stream PDF embedded font (sfnt) at offset 0xBCE6 5296 bytes

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