MALICIOUS — c81c8680d98f512405b76cd2d94c564a3145c6b367f3f54e3f1852d063bde5f9
MALICIOUS — c81c8680d98f512405b76cd2d94c564a3145c6b367f3f54e3f1852d063bde5f9 is a pdf sample analyzed by MalwareAnalyzer by Cyble with a malicious verdict (99/100). 5 of 54 detection engines flagged it, exhibiting 1 ATT&CK technique.
Identification
- SHA-256:
c81c8680d98f512405b76cd2d94c564a3145c6b367f3f54e3f1852d063bde5f9 - SHA-1:
9d4d51b760c668ba14042ac6423b9b23e808985b - MD5:
05f09509905f5cc5811edd5ae2b06ac5 - ssdeep:
1536:syD2PeWcVwVCYyLjjYwCvqOGTtauX3lT2Nc1oaKqBeUJpT8t:X2PXcqVCNLCvLo3xL1oaK0JpC - TLSH:
T11438C0F320E7ED5C7A874B676CF719A9F499C3C8B025EAA01488671CD17C6AE6F10910 - Submitted as: c81c8680d98f512405b76cd2d94c564a3145c6b367f3f54e3f1852d063bde5f9
- File type: pdf · Size: 79428 bytes
- Verdict: malicious (99/100)
Detections (5 of 54 engines)
- MalwareAnalyser heuristics (entropy/packer): high-entropy-blob
- ClamAV (daily): Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
- Emsisoft (Emergency Kit): PDF.Spam.Heur.1
- Trellix Stinger (McAfee): PDF/Phish-FAB!05F09509905F
- Kaspersky (KVRT): HEUR:Hoax.PDF.Phish.gen
MITRE ATT&CK
Why this verdict
The malicious score of 99/100 is the fusion of 10 weighted signals:
- ClamAV (daily) flagged Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 (rule
Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0) - engine signal, weight 0.90, confidence 0.95 - Emsisoft (Emergency Kit) flagged PDF.Spam.Heur.1 (rule
PDF.Spam.Heur.1) - engine signal, weight 0.55, confidence 0.85 - Trellix Stinger (McAfee) flagged PDF/Phish-FAB!05F09509905F (rule
PDF/Phish-FAB!05F09509905F) - engine signal, weight 0.55, confidence 0.85 - Kaspersky (KVRT) flagged HEUR:Hoax.PDF.Phish.gen (rule
HEUR:Hoax.PDF.Phish.gen) - engine signal, weight 0.55, confidence 0.85 - MalwareAnalyser heuristics (entropy/packer) flagged high-entropy-blob (rule
high-entropy-blob) - engine signal, weight 0.35, confidence 0.70 - Embedded network infrastructure: https://mezovuduw.ru/123?utm_term=academic+reading+passages+with+answers+pdf, https://bajiwiga.weebly.com/uploads/1/3/1/3/131379875/771420.pdf, https://cdn-cms.f-static.net/uploads/4427781/normal_5fe6550403eef.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
- Contacted 12 external host(s) at runtime - network signal, weight 0.12, confidence 0.55
- Extracted generic config (16 C2) (generic/advisory) - engine signal, weight 0.15, confidence 0.30
Dynamic analysis (windows)
992 behavior events · 0 ATT&CK techniques · 1 dropped files.
Runtime network
- www.msftconnecttest.com
- rb.symcd.com
- rb.symcb.com
- inference.location.live.net
- desktop-hsgcbep._dosvc._tcp.local
- desktop-hsgcbep(1)._dosvc._tcp.local
- desktop-hsgcbep(2)._dosvc._tcp.local
- ntp.ubuntu.com
- 250.255.255.239.in-addr.arpa
- _dosvc._tcp.local
- http://www.msftconnecttest.com/connecttest.txt
- http://rb.symcd.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBTDRSYViRCZTxmZjLENmnwVjLly9QQU1MAGIknrOUvdk%2BJcobhHdglyA1gCEF0QyxjrOnkAh4OrdHf50xk%3D
- http://rb.symcb.com/rb.crl
- 23.40.52.85
- 162.159.142.9 US · San Francisco · AS13335 Cloudflare, Inc.
- 23.11.37.157
- 20.190.167.149
- 20.247.184.197 SG · Singapore · AS8075 Microsoft Corporation
- 52.123.252.225 AU · Sydney · AS8075 Microsoft Corporation
- 23.198.40.44
Dropped files
- root_.cache_dconf_user -
96a296d224f285c67bee93c30f8a309157f0daa35dc5b87e410b78630a09cfc7
Embedded URLs
- https://mezovuduw.ru/123?utm_term=academic+reading+passages+with+answers+pdf
- https://bajiwiga.weebly.com/uploads/1/3/1/3/131379875/771420.pdf
- https://cdn-cms.f-static.net/uploads/4427781/normal_5fe6550403eef.pdf
- http://rivezetufizi.iblogger.org/ejemplos_de_monografias_cortas_sobre_el_alcoholismo.pdf
- https://cdn-cms.f-static.net/uploads/4451025/normal_60541aee22182.pdf
- https://static.s123-cdn-static.com/uploads/4490754/normal_5fe11ef91893a.pdf
- https://static.s123-cdn-static.com/uploads/4418558/normal_5fe22ad973af4.pdf
- https://static.s123-cdn-static.com/uploads/4378845/normal_5fcc1a2378ff8.pdf
- https://1b6fbac1-9b66-4609-9151-81f5d4c316f7.filesusr.com/ugd/5e81b9_693304d09ad2461ca020c6d5a0eaeb08.pdf?index=true
- https://pamukisap.weebly.com/uploads/1/3/4/7/134761215/d39cc85ce318a.pdf
- https://fe426b01-1dd0-498a-b08e-7ec37e320b94.filesusr.com/ugd/6b45f0_9373ea00b4df403fb9fba5fd09f8e0f5.pdf?index=true
- https://static.s123-cdn-static.com/uploads/4392862/normal_5ffb9776b5866.pdf
- https://cdn-cms.f-static.net/uploads/4445864/normal_6030a378d8694.pdf
- http://lefavapexusa.iblogger.org/nuruvosipikapojuzodewip.pdf
- https://lisewaduw.weebly.com/uploads/1/3/4/3/134358893/6740434.pdf
- https://cdn-cms.f-static.net/uploads/4458615/normal_5fe85948d590f.pdf
- https://012a8781-80b6-4d33-8f63-56d56ef93f15.filesusr.com/ugd/6d3794_ed04283cbb1745fcb11222e6f9a31551.pdf?index=true
- https://rejileju.weebly.com/uploads/1/3/4/3/134335231/kewosozalamiderusixe.pdf
- https://cdn-cms.f-static.net/uploads/4413583/normal_6054603179b31.pdf
- https://cdn-cms.f-static.net/uploads/4488315/normal_603e5b101b2c3.pdf
- http://mumidiw.22web.org/dojinotefukeru.pdf
- https://cdn-cms.f-static.net/uploads/4460461/normal_601aa5c70e5a0.pdf
- https://static.s123-cdn-static.com/uploads/4484365/normal_5feb62680d310.pdf
- https://1094d5c0-a920-47c7-a1de-7e2d56a92d84.filesusr.com/ugd/47b1e8_1a5effccdb624c14b4d8b5bc76c397e1.pdf?index=true
- https://cdn-cms.f-static.net/uploads/4449771/normal_60418be77536c.pdf
Embedded domains
- mezovuduw.ru
- bajiwiga.weebly.com
- cdn-cms.f-static.net
- rivezetufizi.iblogger.org
- static.s123-cdn-static.com
- 1b6fbac1-9b66-4609-9151-81f5d4c316f7.filesusr.com
- pamukisap.weebly.com
- fe426b01-1dd0-498a-b08e-7ec37e320b94.filesusr.com
- lefavapexusa.iblogger.org
- lisewaduw.weebly.com
- 012a8781-80b6-4d33-8f63-56d56ef93f15.filesusr.com
- rejileju.weebly.com
- mumidiw.22web.org
- 1094d5c0-a920-47c7-a1de-7e2d56a92d84.filesusr.com
- www.w3.org
- purl.org
- ns.adobe.com
Embedded IP addresses
- 135.232.92.34
- 72.154.7.111
- 13.89.179.15
- 20.42.65.88
- 72.145.35.97
- 20.42.73.28
- 162.159.142.9
- 20.247.184.197
- 52.123.252.225
- 52.110.12.55
- 4.230.171.124
- 20.42.179.204
Latest analyzed threats · ATT&CK coverage
Analyzed on MalwareAnalyzer by Cyble · Open interactive report