MALICIOUS — 4803926_gta__na__telefon_.pdf

MALICIOUS — 4803926_gta__na__telefon_.pdf is a pdf sample analyzed by MalwareAnalyzer by Cyble with a malicious verdict (75/100). 2 of 53 detection engines flagged it, exhibiting 3 ATT&CK techniques.

Identification

• SHA-256: bc8fe5070204a9bd66a672f98f79ad6bf29bd95c307ea0cb98666db00c82fb08
• SHA-1: 92f37637aabebf739607314013ac6ad376c316c3
• MD5: 4807c36fa12939a3d9633c5b59e456d2
• ssdeep: 6144:PsIrPMkSflLXZQ36gb0+NMCpKWxP7GcwBLbnnt8l6sFyX0v6KBBMSSC:Ps8PMkMv6o/CpKqDGcwxbnnt84xX0vXR
• TLSH: T15E4801F0DA10BA5DC79C3FAB3D29443E6D4A8A4640B0072139238FE577B667F2704966
• Submitted as: 4803926_gta__na__telefon_.pdf
• File type: pdf · Size: 358425 bytes
• Verdict: malicious (75/100)

Detections (2 of 53 engines)

• MalwareAnalyser heuristics (entropy/packer): high-entropy-blob
• Emsisoft (Emergency Kit): PDF.Spam.Heur.13

MITRE ATT&CK

• T1112
• T1105
• T1566.002

Why this verdict

The malicious score of 75/100 is the fusion of 7 weighted signals:

• Contacted 16 external host(s) at runtime (2 HTTP) - network signal, weight 0.40, confidence 0.80
• Embedded link rated suspicious by URL analysis: http://img1.liveinternet.ru/images/attach/c/7//4803/4803160_shema__vyazaniya__pokruyvala_.pdf - network signal, weight 0.40, confidence 0.60
• Embedded network infrastructure: http://botcraftman.ru/?lip&keyword=%D0%B3%D1%82%D0%B0+%D0%BD%D0%B0+%D1%82%D0%B5%D0%BB%D0%B5%D1%84%D0%BE%D0%BD+%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C&charset=utf-8, http://img1.liveinternet.ru/images/attach/c/7//4803/4803160_shema__vyazaniya__pokruyvala_.pdf, http://img1.liveinternet.ru/images/attach/c/7//4803/4803612_sovremennuyy__russkiy__perevod_.pdf - static signal, weight 0.35, confidence 0.60
• Document active content: uri-action - static signal, weight 0.30, confidence 0.60
• Packing/obfuscation: high-entropy-blob - static signal, weight 0.25, confidence 0.55
• Observed at runtime: Modify Registry (T1112) (rule Modify Registry) - dynamic signal, weight 0.12, confidence 0.90
• Extracted generic config (4 C2) (generic/advisory) - engine signal, weight 0.15, confidence 0.30

Dynamic analysis (windows)

9645 behavior events · 1 ATT&CK techniques · 3 dropped files.

Runtime network

• www.msftconnecttest.com
• rb.symcd.com
• rb.symcb.com
• inference.location.live.net
• to-do.office.com
• staging.to-do.officeppe.com
• teams.cloud.microsoft
• outlook.office.com
• outlook.office365.com
• outlook.cloud.microsoft
• 2.0.0.0.1.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.2.0.f.f.ip6.arpa
• b.f.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.2.0.f.f.ip6.arpa
• 252.0.0.224.in-addr.arpa
• 3.0.0.0.1.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.2.0.f.f.ip6.arpa
• 250.255.255.239.in-addr.arpa
• desktop-hsgcbep
• ntp.ubuntu.com
• 255.255.254.169.in-addr.arpa
• 251.0.0.224.in-addr.arpa
• http://www.msftconnecttest.com/connecttest.txt

Dropped files

• C:\Users\analyst\AppData\Local\SumatraPDF\sumatrapdfcache\935afe6361791e0ed49482cf420549f3.png - b3918d55a85b738a4a7321a97a59d1105e90461b3a22037f823967d57f77e5d2
• C:\Users\analyst\AppData\Local\SumatraPDF\SumatraPDF-settings.txt - d87da369ed6598650fe6cf26566dc97604e559b9702a1d28f86a3674177c718a
• root_.cache_dconf_user - 96a296d224f285c67bee93c30f8a309157f0daa35dc5b87e410b78630a09cfc7

Embedded URLs

• http://botcraftman.ru/?lip&keyword=%D0%B3%D1%82%D0%B0+%D0%BD%D0%B0+%D1%82%D0%B5%D0%BB%D0%B5%D1%84%D0%BE%D0%BD+%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C&charset=utf-8
• http://img1.liveinternet.ru/images/attach/c/7//4803/4803160_shema__vyazaniya__pokruyvala_.pdf
• http://img1.liveinternet.ru/images/attach/c/7//4803/4803612_sovremennuyy__russkiy__perevod_.pdf
• http://img1.liveinternet.ru/images/attach/c/7//4803/4803205_skachat__maynkravt__na_.pdf
• http://www.msftconnecttest.com/connecttest.txt
• http://rb.symcd.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBTDRSYViRCZTxmZjLENmnwVjLly9QQU1MAGIknrOUvdk%2BJcobhHdglyA1gCEF0QyxjrOnkAh4OrdHf50xk%3D
• http://rb.symcb.com/rb.crl
• http://203.26.79.13/filestreamingservice//files/753bb2df-a166-494f-aa7d-5678b1ef0c56/pieceshash?cacheHostOrigin=dl.delivery.mp.microsoft.com
• http://203.26.79.13/filestreamingservice/files/753bb2df-a166-494f-aa7d-5678b1ef0c56?P1=1787523406&P2=404&P3=2&P4=LOt%2bKTDezdERNZSJvE5fMqXYRFCtzMYWp8LSX%2bXmdn81U1WHavnYFVT18Ftx89%2fIvL0VmyGimhYW%2fy6YTNpnRw%3d%3d&cacheHostOrigin=msedge.b.tlu.dl.delivery.mp.microsoft.com

Embedded domains

• n.ml
• botcraftman.ru
• img1.liveinternet.ru

Embedded IP addresses

• 74.179.77.204
• 20.42.65.94
• 20.42.73.24
• 52.123.252.241
• 52.230.60.54
• 4.247.188.233
• 4.230.171.124
• 135.233.95.80
• 72.153.5.138
• 4.150.223.110
• 203.26.79.13
• 20.165.94.63
• 52.123.252.239
• 52.123.129.14
• 92.223.78.30
• 142.250.183.35

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Analyzed on MalwareAnalyzer by Cyble · Open interactive report