Malicious PDF — malware analysis report

Static analysis result for SHA-256 2f32748efee3d37e…

MALICIOUS

PDF

108.1 KB Created: 2020-08-01 02:50:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: b56ede895a2880873ee088de9c3af3b1 SHA-1: 2a1a7b81a85fe04513edfecd3c5a7c28a15f85e8 SHA-256: 2f32748efee3d37e6c049cbaf86a80b37ae26bc04fc43a2f96bb9b1379773c48
200 Risk Score

Malware Insights

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

The PDF file contains a link to a known malicious redirector, ttraff.ru, which is disguised as a 'kenmore elite he3 washer repair manual'. This, combined with the heuristic firings for 'PDF_MALICIOUS_REDIRECTOR_LINK', 'PDF_SEO_LINK_FARM', 'SE_ADVANCE_FEE_SCAM_LURE', and 'SE_MFA_LURE', strongly suggests a phishing or scam attempt. The document body, though heavily obfuscated, contains keywords related to the lure. The primary attack vector appears to be a malicious link embedded within the document.

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.
  • Advance-fee lottery/parcel scam lure high SE_ADVANCE_FEE_SCAM_LURE
    Document contains lottery/beneficiary or prize language together with large-value draft/funds wording and parcel/courier delivery requirements. This is a classic advance-fee fraud document shape.
  • MFA / one-time-code harvesting lure high SE_MFA_LURE
    Document asks for a one-time code, authenticator approval, or MFA confirmation — consistent with credential phishing kits that steal session tokens or abuse multi-factor authentication
  • 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.ru/pify?keyword=kenmore+elite+he3+washer+repair+manual
    • http://files.timelytresses.com/uploads/1/3/1/4/131455463/e7bb8.pdf
    • http://files.laverocklawcottages.com/uploads/1/3/1/1/131163540/9914545.pdf
    • http://files.sweetspotretreat.com/uploads/1/3/1/3/131398541/5955005.pdf
    • http://files.nishanpress.org/uploads/1/3/1/1/131163733/kukexavoditu.pdf
    • https://cdn.shopify.com/s/files/1/0433/8342/3126/files/1642532708.pdf
    • https://cdn.shopify.com/s/files/1/0431/2943/8370/files/woxufor.pdf
    • https://cdn.shopify.com/s/files/1/0427/7485/5846/files/vifixater.pdf
    • https://cdn.shopify.com/s/files/1/0429/0379/7913/files/rikur.pdf
    • https://cdn.shopify.com/s/files/1/0434/5187/5494/files/37737507650.pdf
    • https://cdn.shopify.com/s/files/1/0430/9119/8112/files/fafaxisanejasa.pdf
    • https://cdn.shopify.com/s/files/1/0434/5852/7397/files/23846137256.pdf
    • https://cdn.shopify.com/s/files/1/0427/6856/4380/files/jegun.pdf
    • https://cdn.shopify.com/s/files/1/0434/9244/2264/files/tulutimunetidaborezazap.pdf
    • https://cdn.shopify.com/s/files/1/0430/7035/7661/files/418612829.pdf
    • https://cdn.shopify.com/s/files/1/0431/6659/7288/files/kupigenerijowomopuvaziva.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_off00016cea.bin
b5a17d220a60f3b75479eae7d4140e63fc0313fb3a41ab3c8c7431f35bf8861d
pdf-font-stream PDF embedded font (sfnt) at offset 0x16CEA 5284 bytes
font_01_sfnt_off00017ec8.bin
874f7f2bde2cb04556b053be1d7130d675e6dce49a29a7a832c495efbd829f17
pdf-font-stream PDF embedded font (sfnt) at offset 0x17EC8 10612 bytes