Malicious PDF — malware analysis report

Static analysis result for SHA-256 9b2be4aae28f9f0f…

MALICIOUS

PDF

46.8 KB Created: 2020-08-24 07:20:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 73d4b98aa24219737de8bef99b61f0f5 SHA-1: 4300504110d7b6f769714732324fc666851d2203 SHA-256: 9b2be4aae28f9f0f734e574e4584e2cf51117bda6206934db1dc6ab0695d3f82
120 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded links, with one identified as a known malicious redirector. The heuristic 'PDF_SEO_LINK_FARM' indicates a mass external PDF link farm, suggesting the document's primary purpose is to host these links. The presence of the malicious redirector URL strongly suggests an attempt to lure users to malicious sites. No scripts were extracted from this sample.

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=grim+fandango+petrified+forest+guide
    • http://files.tabbyruins.com/uploads/1/3/2/6/132683014/1693a20427f5fe.pdf
    • http://marewok.treasured-one.com/uploads/1/3/1/8/131871991/xawitem_xulaserudemo_disisopogix_bopapomevi.pdf
    • http://files.babygeelong.com.au/uploads/1/3/0/7/130776088/0335e64.pdf
    • http://files.harfordspoint.org/uploads/1/3/0/7/130776644/bulujupifubinesu.pdf
    • https://cdn.shopify.com/s/files/1/0433/8669/9925/files/faxing_cover_sheet.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/kofuka.pdf
    • https://cdn.shopify.com/s/files/1/0431/2619/4333/files/kusasibilatababefomelez.pdf
    • https://cdn.shopify.com/s/files/1/0434/5197/3799/files/super_sport_live_tv_apk.pdf
    • https://cdn.shopify.com/s/files/1/0429/9679/3503/files/21302566615.pdf
    • https://cdn.shopify.com/s/files/1/0436/0772/0094/files/71499812342.pdf
    • https://cdn.shopify.com/s/files/1/0430/5354/7677/files/waderivopo.pdf
    • https://cdn.shopify.com/s/files/1/0431/3029/0327/files/majadudex.pdf
    • https://cdn.shopify.com/s/files/1/0429/7100/5082/files/vekopokudap.pdf
    • https://cdn.shopify.com/s/files/1/0435/3510/6203/files/lipebutewiwevara.pdf
    • https://cdn.shopify.com/s/files/1/0432/6191/9390/files/nediviboduw.pdf
    • https://cdn.shopify.com/s/files/1/0432/7519/0430/files/alter_ego_a2_gratuit_avec_cd_audio_mp3_gratuit.pdf
    • https://cdn.shopify.com/s/files/1/0437/3282/8314/files/pr_cover_letter.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_off00006e04.bin
5a82c9e0ca390f0c71d8225cf773e1af774a4f5eade5dabbceb6ef69c1299366
pdf-font-stream PDF embedded font (sfnt) at offset 0x6E04 5240 bytes
font_01_sfnt_off00007fc2.bin
4f3a533d7eef1fa0946fec88543b75b16d65e8a010c3a3784e085eb74c9e89fc
pdf-font-stream PDF embedded font (sfnt) at offset 0x7FC2 9480 bytes
font_02_sfnt_off0000a039.bin
7f6049e5011acf0e8581793f2bc2bb947aac2929fdb77abc318b2a6155c1ef71
pdf-font-stream PDF embedded font (sfnt) at offset 0xA039 4324 bytes