Malicious PDF — malware analysis report

Static analysis result for SHA-256 57087a16158a8f8b…

MALICIOUS

PDF

54.3 KB Created: 2020-08-08 04:27:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 64afb1b4ced3ef0ced0dc04482e64ea9 SHA-1: d1a0466d95a11d31f414c178b1b2a9ae755b8178 SHA-256: 57087a16158a8f8b9bd5e666355253c31bea9d524f01318b8e4886fa06a97d94
120 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, with a critical heuristic firing indicating it's a malicious redirector. The document body, though heavily obfuscated, contains text referencing 'villagers board game rules pdf' and includes the malicious URL https://ttraff.ru/pify?keyword=villagers+board+game+rules+pdf. This suggests a social engineering tactic to trick users into clicking the link, which then redirects to malicious infrastructure.

Heuristics 3

  • 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.
  • 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=villagers+board+game+rules+pdf
    • http://wotiji.natepage.com/uploads/1/3/2/7/132740405/votunugopikoju.pdf
    • http://files.1dayresume.com/uploads/1/3/1/4/131406258/7006865.pdf
    • http://files.hscgeographyeconomicactivity.hsieteachers.com/uploads/1/3/0/7/130776511/datizepa.pdf
    • http://files.morningstarcommunity.church/uploads/1/3/0/7/130740165/newomuneverid.pdf
    • http://files.mtrageserllc.com/uploads/1/3/0/8/130874240/jajixebovowejen-nekiw-miridoleve-selisux.pdf
    • https://cdn.shopify.com/s/files/1/0429/1647/9132/files/lazakemobedipamafuwipi.pdf
    • https://cdn.shopify.com/s/files/1/0432/6899/7288/files/demaganoduwesakazabesok.pdf
    • https://cdn.shopify.com/s/files/1/0430/0469/0581/files/58267804487.pdf
    • https://cdn.shopify.com/s/files/1/0438/4981/0080/files/mivimarokisiwuxidabe.pdf
    • https://cdn.shopify.com/s/files/1/0433/2149/1621/files/ladawajokonenomiw.pdf
    • https://cdn.shopify.com/s/files/1/0428/8321/9619/files/37249891555.pdf
    • https://cdn.shopify.com/s/files/1/0430/3159/3113/files/ladewij.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/lomapatigusobotatijizu.pdf
    • https://cdn.shopify.com/s/files/1/0431/1475/8293/files/nejimapi.pdf
    • https://cdn.shopify.com/s/files/1/0428/2672/7580/files/xusezitifupas.pdf
    • https://cdn.shopify.com/s/files/1/0434/7654/9798/files/gonomakedoki.pdf
    • https://cdn.shopify.com/s/files/1/0429/8643/8807/files/82920042547.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_off00008af1.bin
00e804ef11430ea273b798893a047b709ab3f2db5261ce5b433d11f0f7cf7dff
pdf-font-stream PDF embedded font (sfnt) at offset 0x8AF1 5160 bytes
font_01_sfnt_off00009c75.bin
c3ec8adaee79ca57745466acd58416de6b51bd17c2034575f94af2898bd6ab73
pdf-font-stream PDF embedded font (sfnt) at offset 0x9C75 9892 bytes
font_02_sfnt_off0000be41.bin
4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3
pdf-font-stream PDF embedded font (sfnt) at offset 0xBE41 4324 bytes