Malicious PDF — malware analysis report

Static analysis result for SHA-256 38bd20a763c0ec99…

MALICIOUS

PDF

44.1 KB Created: 2020-08-25 05:33:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6cc613dfb97a26dad098e1dc15149c72 SHA-1: cd46e9d937be071a32abd72279ab422770631585 SHA-256: 38bd20a763c0ec99a9103430d2fa2585b4d4da27db19ad39c33b95d3877e42e9
160 Risk Score

Malware Insights

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

The PDF contains multiple embedded links, with one identified as a malicious redirector. The document body and heuristics suggest a lure for MFA or credential harvesting, likely leading to a phishing site. The primary malicious URL identified is https://ttraff.com/pify?keyword=icloud+photo+stream+on+android+phone, which is used to redirect the user. The presence of numerous links, many pointing to benign Shopify domains, suggests an attempt to blend malicious links with legitimate-looking ones.

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.
  • 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.com/pify?keyword=icloud+photo+stream+on+android+phone
    • http://xeleke.sailabilitybatemansbay.com/uploads/1/3/2/6/132696067/e3894.pdf
    • http://files.loyalsockband.com/uploads/1/3/1/1/131164168/1575759.pdf
    • http://files.realityoga.com/uploads/1/3/0/8/130814121/soxuwum_bujasojit_zugufa_lapufudun.pdf
    • http://ratozejo.kendallgrundyfb.com/uploads/1/3/0/8/130814328/fenugunivugepelu.pdf
    • http://files.kwikkoldrefrig.com/uploads/1/3/2/7/132741352/0ca96a.pdf
    • https://cdn.shopify.com/s/files/1/0434/1799/3366/files/celtics_schedule_2020_19.pdf
    • https://cdn.shopify.com/s/files/1/0432/8433/2710/files/dragonlover_s_guide_to_pern.pdf
    • https://cdn.shopify.com/s/files/1/0430/6596/6754/files/blurred_background_camera_app_for_android.pdf
    • https://cdn.shopify.com/s/files/1/0430/6812/9441/files/gst_full_information_in_gujarati.pdf
    • https://cdn.shopify.com/s/files/1/0437/0831/7850/files/navikubodim.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/kofuka.pdf
    • https://cdn.shopify.com/s/files/1/0446/9984/4762/files/nisemerikifato.pdf
    • https://cdn.shopify.com/s/files/1/0434/6534/3126/files/tigershark_jet_ski.pdf
    • https://cdn.shopify.com/s/files/1/0433/9302/4149/files/fallout_4_ign_wiki.pdf
    • https://cdn.shopify.com/s/files/1/0430/8526/7097/files/abstract_algebra_dummit_answers.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_off0000639c.bin
1b96ba74147856bf28be0183de8cf978ad23fd7359a473abb95e60a6b2c3a994
pdf-font-stream PDF embedded font (sfnt) at offset 0x639C 5132 bytes
font_01_sfnt_off000074d3.bin
4f55276e56adda9b6b80746b2ad70ccdb168297c78fe4480bd2bd7520e0f38fd
pdf-font-stream PDF embedded font (sfnt) at offset 0x74D3 9568 bytes
font_02_sfnt_off00009574.bin
05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176
pdf-font-stream PDF embedded font (sfnt) at offset 0x9574 4324 bytes