Malicious PDF — malware analysis report

Static analysis result for SHA-256 4628cd804aabfca6…

MALICIOUS

PDF

57.6 KB Created: 2020-08-18 17:08:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: cc430a3292082958fe00cf210a5f78d4 SHA-1: 5886ebe916a4e063f4ba8797b23e6e13f673419e SHA-256: 4628cd804aabfca6be702caef429f4ea8d397d1e548f08e7d890f0e09575b0b3
140 Risk Score

Malware Insights

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

The PDF file contains a link farm and a specific redirector URL, https://ttraff.com/pify?keyword=hilton+honors+credit+card+authorization+form, which is flagged as malicious. The document body, though partially corrupted, contains text related to a "Hilton Honors credit card authorization form", suggesting a phishing lure. The presence of numerous PDF links, many hosted on Shopify, indicates an attempt to obscure the malicious redirector and potentially leverage legitimate platforms for hosting decoy content. The primary malicious URL is the most critical IOC.

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.
  • 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/pify?keyword=hilton+honors+credit+card+authorization+form
    • http://weraxo.murdermysteriesiom.com/uploads/1/3/1/4/131437604/578dd6c.pdf
    • http://files.awryministries.org/uploads/1/3/1/0/131069869/cf7150999521.pdf
    • http://monaveteb.staceygschwartz.com/uploads/1/3/1/0/131070722/3564450.pdf
    • http://pelumejo.thepetcareinstitute.com/uploads/1/3/1/6/131607163/7b1e669.pdf
    • http://files.kdasc.org/uploads/1/3/0/8/130874612/getilodasapud-lotoropazopiv.pdf
    • https://cdn.shopify.com/s/files/1/0435/2396/5079/files/49004578255.pdf
    • https://cdn.shopify.com/s/files/1/0437/4305/1937/files/paul_barash_clinical_anesthesia.pdf
    • https://cdn.shopify.com/s/files/1/0432/4235/6904/files/28672369539.pdf
    • https://cdn.shopify.com/s/files/1/0433/8758/4661/files/pradhan_mantri_awas_yojana_gramin_application_form_in_malayalam.pdf
    • https://cdn.shopify.com/s/files/1/0433/6159/9656/files/86119392246.pdf
    • https://cdn.shopify.com/s/files/1/0428/6211/7020/files/steam_mac_download.pdf
    • https://cdn.shopify.com/s/files/1/0438/1127/4914/files/conjunctivitis_viral_vs_bacteriana.pdf
    • https://cdn.shopify.com/s/files/1/0441/2784/6552/files/xorupubuvapoxojagewivi.pdf
    • https://cdn.shopify.com/s/files/1/0435/5185/0647/files/hands_on_blockchain_with_hyperledger_free_download.pdf
    • https://cdn.shopify.com/s/files/1/0432/4065/2960/files/madhyamam_malayalam_calendar_2019.pdf
    • https://cdn.shopify.com/s/files/1/0428/0962/2687/files/google_sheets_duplicate_row.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_off0000a1fd.bin
4f0884ac8c150ced9498a0da3058f7b66fa042859b52a23f7d48698bc530ad26
pdf-font-stream PDF embedded font (sfnt) at offset 0xA1FD 5272 bytes
font_01_sfnt_off0000b3b8.bin
e8bd86e6fad755ba33d3244518aded2e4af3274c0dbf7c8c96570e555631cb3f
pdf-font-stream PDF embedded font (sfnt) at offset 0xB3B8 10956 bytes