Malicious PDF — malware analysis report

Static analysis result for SHA-256 92a920dcb41282c7…

MALICIOUS

PDF

42.9 KB Created: 2020-09-01 13:03:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 35cdac87a9854c2f557affd36f20b8c4 SHA-1: 23338954f136913464699112d937bf89ec254185 SHA-256: 92a920dcb41282c7dfeec3177943b0b94edcf5d0fffe8ea267ffbe28ba3420d6
220 Risk Score

Malware Insights

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

The PDF file contains multiple heuristics indicating malicious intent, including a critical finding of a malicious redirector link to 'ttraff.com' and a PDF link farm. The document body, though heavily obfuscated, contains the malicious URL and appears to be a lure related to device data transfer. The presence of MFA and payment redirection lures suggests a sophisticated phishing attempt aimed at credential harvesting or financial fraud. No scripts were extracted, but the embedded malicious URL is the primary indicator of compromise.

Heuristics 6

  • 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
  • Payment redirection / bank-detail change lure high SE_PAYMENT_REDIRECT_LURE
    Document describes new or changed bank, wire, ACH, IBAN, SWIFT, or routing instructions — a high-value business-email-compromise 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
  • 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/wix?keyword=blackberry+classic+transfer+contacts+to+android
    • https://cdn.shopify.com/s/files/1/0429/2355/7030/files/88494076856.pdf
    • https://cdn.shopify.com/s/files/1/0429/0392/8991/files/chief_keef_faneto_lyrics.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/58143530911.pdf
    • https://cdn.shopify.com/s/files/1/0433/1818/2041/files/fundamentals_of_engineering_electromagnetics_cheng.pdf
    • https://cdn.shopify.com/s/files/1/0431/8458/6903/files/73484728365.pdf
    • https://cdn.shopify.com/s/files/1/0434/8031/8118/files/business_basics_new_edition_teacher_s_book.pdf
    • https://cdn.shopify.com/s/files/1/0438/4079/8885/files/que_es_psicologia_infantil.pdf
    • https://cdn.shopify.com/s/files/1/0437/1097/2053/files/13154391242.pdf
    • https://cdn.shopify.com/s/files/1/0435/6338/4991/files/loloxodapawevawunezajom.pdf
    • https://cdn.shopify.com/s/files/1/0434/9159/0308/files/jofukimo.pdf
    • https://cdn.shopify.com/s/files/1/0430/4571/6129/files/dipenuxoleb.pdf
    • https://cdn.shopify.com/s/files/1/0440/4586/1014/files/rotasimesotuneminigux.pdf
    • https://cdn.shopify.com/s/files/1/0428/4815/7859/files/7687443712.pdf
    • https://cdn.shopify.com/s/files/1/0438/6720/9893/files/fitofajidutoranasoz.pdf
    • https://cdn.shopify.com/s/files/1/0449/9701/7768/files/contoh_proposal_skripsi_akuntansi_sektor_publik.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_off0000689a.bin
5e7e10289d9569d139bdebb347b5341018a70e7ace38e609e5de24a42df4321f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x689A 5372 bytes
font_01_sfnt_off00007af9.bin
0b830f7b39feb6fbf742a4c4daa3eb86174575d35274e65aeb505b5ae857e2b1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7AF9 10420 bytes

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