Malicious PDF — malware analysis report

Static analysis result for SHA-256 a6862e08408154a6…

MALICIOUS

PDF

65.4 KB Created: 2021-04-04 05:27:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: a66d66d0630c6153dea759a554778308 SHA-1: 7398cac3be171077d3cf14a782b0f12c15692694 SHA-256: a6862e08408154a6a0849f325d6f7efcede50ba9a656a4b4c3a4da79aae5f855
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file contains a large number of external links, as indicated by the PDF_SEO_LINK_FARM heuristic. One of the primary links, https://crophysi.ru/award?keyword=barcelona+plano+metro+pdf, appears to be part of a link farm. The ClamAV detection and ML classifier also flag this file as malicious, suggesting it's used for phishing or distributing malware. While no scripts were explicitly extracted, the nature of the link farm and the overall detection suggest a malicious intent, likely related to driving traffic to malicious sites or hosting further malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.5460

Heuristics 4

  • 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.
  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://crophysi.ru/award?keyword=barcelona+plano+metro+pdf
    • http://bettermoneytips.com/110029590131vidk.pdf
    • https://cdn-cms.f-static.net/uploads/4453906/normal_5fe7d806948c3.pdf
    • https://cdn-cms.f-static.net/uploads/4407733/normal_60443d59b1c4b.pdf
    • https://cdn-cms.f-static.net/uploads/4455377/normal_5fe99ebaed08c.pdf
    • https://static.s123-cdn-static.com/uploads/4446388/normal_6008dd4e3b2b6.pdf
    • http://faxadiweruxu.22web.org/99175300141.pdf
    • http://alsamcctv.com/jorufijoronaxiwemobaxolpgzj7.pdf
    • https://cdn-cms.f-static.net/uploads/4410190/normal_605160cd7d3d6.pdf
    • https://cdn-cms.f-static.net/uploads/4388835/normal_6047c8af4f321.pdf
    • https://cdn-cms.f-static.net/uploads/4454999/normal_5fd810e5693d2.pdf
    • http://cmbclientes.com/online_quran_teacher_female_uku5byd.pdf
    • http://bitsracing.net/mexuvuruturonorufd0q10.pdf
    • http://alex-chekalev.com/intermatic_pool_timer_t104p3ueboo.pdf
    • https://cdn-cms.f-static.net/uploads/4382618/normal_601a051ab6cab.pdf
    • https://cdn-cms.f-static.net/uploads/4415061/normal_604952b2dd053.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://f414df59-d0c5-412c-8277-160bd92acc6e.filesusr.com/ugd/055bb3_6367899999764d79bd704399893ff5f2.pdf?index=true
    • https://s3.amazonaws.com/mubefula/toyota_yaris_2007_hatchback.pdf
    • https://4095172d-bd2f-4181-91d7-dd424e653400.filesusr.com/ugd/df73ab_4721829dc52b469eaa5af1dc04755dba.pdf?index=true
    • https://2ea3657d-1c4c-40dd-8491-58aeeb8dc933.filesusr.com/ugd/18a85a_7218a7d139ca46a192492d07cac417a2.pdf?index=true
    • http://nixuverojezuluz.epizy.com/android_10_one_ui_2_beta.pdf
    • https://e082b6be-64c0-45f6-a8ff-82b9c6f476f0.filesusr.com/ugd/1479de_b9481d8105c04d97aead7b71f6186879.pdf?index=true
    • https://4f7f339c-9ee9-4921-a7ad-794169edd555.filesusr.com/ugd/fea72b_3b44da3b73ef4d1ca97ab033b2122272.pdf?index=true
    • http://borogibapomad.epizy.com/canon_raw_codec_software.pdf
    • http://juwesuzibu.epizy.com/vadufozosugefoxipot.pdf
    • https://s3.amazonaws.com/sajezife/tidukiresedob.pdf
    • https://s3.amazonaws.com/tobaziw/2332671477.pdf
    • https://s3.amazonaws.com/pavujiniz/6585595686.pdf
    • https://s3.amazonaws.com/jotizifime/21034712522.pdf
    • http://scripts.sil.org/OFL

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f2f1.bin
9f533a8c1c2dd81b7de255a2268ff6a715caa4eeaa930ffff5d0345fff5d0765		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF2F1 4912 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.