SUSPICIOUS — 4818468_programma__proektirovaniya__domov_.pdf

SUSPICIOUS — 4818468_programma__proektirovaniya__domov_.pdf is a pdf sample analyzed by MalwareAnalyzer by Cyble with a suspicious verdict (66/100). 3 of 53 detection engines flagged it, exhibiting 3 ATT&CK techniques.

Identification

• SHA-256: f55f3942237659661dd96a713bd9914c04ed4abe59c64047aa94d33c55467635
• SHA-1: 892c5aff80c0700737873e942ace7322f9cf3e40
• MD5: 712531b6eeb8a7ab95f9080453877a4f
• ssdeep: 6144:HldlnHhlysNXSQHxN597pnwyruJCXH2rXE2XA5d617pC0HmbdGEXuO3d:vhKSzrVpTsg6XEP61tC0HSdGCpN
• TLSH: T1E14802F1EE099D9CCBEA7E5B3E78203D5986901181E257303DA714F232B52BB3709925
• Submitted as: 4818468_programma__proektirovaniya__domov_.pdf
• File type: pdf · Size: 361865 bytes
• Verdict: suspicious (66/100)

Detections (3 of 53 engines)

• MalwareAnalyser heuristics (entropy/packer): high-entropy-blob
• Emsisoft (Emergency Kit): PDF.Spam.Heur.13
• Kaspersky (KVRT): HEUR:Hoax.PDF.Phish.gen

MITRE ATT&CK

• T1112
• T1105
• T1566.002

Why this verdict

The suspicious score of 66/100 is the fusion of 7 weighted signals:

• Embedded link rated suspicious by URL analysis: http://img1.liveinternet.ru/images/attach/c/7//4817/4817633_skachat__gineklogiya_.pdf - network signal, weight 0.40, confidence 0.60
• Embedded network infrastructure: http://botcraftman.ru/?lip&keyword=%D0%BF%D1%80%D0%BE%D0%B3%D1%80%D0%B0%D0%BC%D0%BC%D0%B0+%D0%BF%D1%80%D0%BE%D0%B5%D0%BA%D1%82%D0%B8%D1%80%D0%BE%D0%B2%D0%B0%D0%BD%D0%B8%D1%8F+%D0%B4%D0%BE%D0%BC%D0%BE%D0%B2+%D0%B1%D0%B5%D1%81%D0%BF%D0%BB%D0%B0%D1%82%D0%BD%D0%BE+%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//4817/4817633_skachat__gineklogiya_.pdf, http://img1.liveinternet.ru/images/attach/c/7//4817/4817475_chit__na__flagi_.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
• Contacted 9 external host(s) at runtime - network signal, weight 0.12, confidence 0.55
• Extracted generic config (4 C2) (generic/advisory) - engine signal, weight 0.15, confidence 0.30

Dynamic analysis (windows)

9729 behavior events · 1 ATT&CK techniques · 3 dropped files.

Runtime network

• www.msftconnecttest.com
• rb.symcd.com
• rb.symcb.com
• to-do.office.com
• staging.to-do.officeppe.com
• desktop-hsgcbep
• 250.255.255.239.in-addr.arpa
• ntp.ubuntu.com
• 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
• 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
• 252.0.0.224.in-addr.arpa
• 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
• 255.255.254.169.in-addr.arpa
• 251.0.0.224.in-addr.arpa
• http://www.msftconnecttest.com/connecttest.txt
• http://rb.symcd.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBTDRSYViRCZTxmZjLENmnwVjLly9QQU1MAGIknrOUvdk%2BJcobhHdglyA1gCEF0QyxjrOnkAh4OrdHf50xk%3D
• http://rb.symcb.com/rb.crl
• 23.40.52.209
• 172.66.2.5 US · San Francisco · AS13335 Cloudflare, Inc.
• 23.33.238.178

Dropped files

• C:\Users\analyst\AppData\Local\SumatraPDF\sumatrapdfcache\6f40d82ebacd60e494a3377eb8bbf0f3.png - c3c01d2719f9089a30d9b98f8b9010a9d96386a3ad3eb0e99774cfadadf1da7a
• C:\Users\analyst\AppData\Local\SumatraPDF\SumatraPDF-settings.txt - c0df4187dc714924184b849297366da60f65f2aa797aa6445230c67f3c1748a0
• root_.cache_dconf_user - 96a296d224f285c67bee93c30f8a309157f0daa35dc5b87e410b78630a09cfc7

Embedded URLs

• http://botcraftman.ru/?lip&keyword=%D0%BF%D1%80%D0%BE%D0%B3%D1%80%D0%B0%D0%BC%D0%BC%D0%B0+%D0%BF%D1%80%D0%BE%D0%B5%D0%BA%D1%82%D0%B8%D1%80%D0%BE%D0%B2%D0%B0%D0%BD%D0%B8%D1%8F+%D0%B4%D0%BE%D0%BC%D0%BE%D0%B2+%D0%B1%D0%B5%D1%81%D0%BF%D0%BB%D0%B0%D1%82%D0%BD%D0%BE+%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//4817/4817633_skachat__gineklogiya_.pdf
• http://img1.liveinternet.ru/images/attach/c/7//4817/4817475_chit__na__flagi_.pdf
• http://img1.liveinternet.ru/images/attach/c/7//4817/4817536_skachat__drayver__dlya_.pdf
• http://www.msftconnecttest.com/connecttest.txt
• http://rb.symcd.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBTDRSYViRCZTxmZjLENmnwVjLly9QQU1MAGIknrOUvdk%2BJcobhHdglyA1gCEF0QyxjrOnkAh4OrdHf50xk%3D
• http://rb.symcb.com/rb.crl

Embedded domains

• botcraftman.ru
• img1.liveinternet.ru

Embedded IP addresses

• 172.172.255.217
• 40.84.97.4
• 13.69.109.130
• 172.66.2.5
• 74.179.71.159
• 20.76.201.171
• 92.223.78.30
• 135.233.95.144
• 162.159.36.2

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Analyzed on MalwareAnalyzer by Cyble · Open interactive report