Analysis Overview
SHA256
b84d0e2da061fe4351038a88a6baef71cd5743857eb5358d4396a3b5b3364a51
Threat Level: Known bad
The file c3d46ec2a43121addb63f888898a6c4c was found to be: Known bad.
Malicious Activity Summary
SmokeLoader
Deletes itself
Executes dropped EXE
Loads dropped DLL
Program crash
Unsigned PE
Suspicious use of WriteProcessMemory
Suspicious use of UnmapMainImage
Suspicious behavior: MapViewOfSection
Uses Task Scheduler COM API
Suspicious use of AdjustPrivilegeToken
Suspicious behavior: EnumeratesProcesses
Checks SCSI registry key(s)
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2023-12-28 04:36
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
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Analysis: behavioral2
Detonation Overview
Submitted
2023-12-28 04:36
Reported
2024-01-08 05:11
Platform
win10v2004-20231215-en
Max time kernel
155s
Max time network
164s
Command Line
Signatures
SmokeLoader
Deletes itself
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\tjiicat | N/A |
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\c3d46ec2a43121addb63f888898a6c4c.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\tjiicat | N/A |
Checks SCSI registry key(s)
| Description | Indicator | Process | Target |
| Key queried | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI | C:\Users\Admin\AppData\Roaming\tjiicat | N/A |
| Key enumerated | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI | C:\Users\Admin\AppData\Roaming\tjiicat | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI | C:\Users\Admin\AppData\Local\Temp\c3d46ec2a43121addb63f888898a6c4c.exe | N/A |
| Key queried | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI | C:\Users\Admin\AppData\Local\Temp\c3d46ec2a43121addb63f888898a6c4c.exe | N/A |
| Key enumerated | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI | C:\Users\Admin\AppData\Local\Temp\c3d46ec2a43121addb63f888898a6c4c.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI | C:\Users\Admin\AppData\Roaming\tjiicat | N/A |
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\c3d46ec2a43121addb63f888898a6c4c.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\c3d46ec2a43121addb63f888898a6c4c.exe | N/A |
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Suspicious behavior: MapViewOfSection
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\c3d46ec2a43121addb63f888898a6c4c.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\tjiicat | N/A |
Suspicious use of UnmapMainImage
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Uses Task Scheduler COM API
Processes
C:\Users\Admin\AppData\Local\Temp\c3d46ec2a43121addb63f888898a6c4c.exe
"C:\Users\Admin\AppData\Local\Temp\c3d46ec2a43121addb63f888898a6c4c.exe"
C:\Users\Admin\AppData\Roaming\tjiicat
C:\Users\Admin\AppData\Roaming\tjiicat
Network
| Country | Destination | Domain | Proto |
| US | 138.91.171.81:80 | tcp | |
| US | 8.8.8.8:53 | g.bing.com | udp |
| US | 8.8.8.8:53 | 2.136.104.51.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 194.178.17.96.in-addr.arpa | udp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 8.8.8.8:53 | 23.177.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 200.197.79.204.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 59.128.231.4.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 26.35.223.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 241.154.82.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 103.169.127.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 41.110.16.96.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 146.78.124.51.in-addr.arpa | udp |
| US | 8.8.8.8:53 | conceitosseg.com | udp |
| US | 8.8.8.8:53 | integrasidata.com | udp |
| SG | 172.104.187.4:80 | integrasidata.com | tcp |
| US | 8.8.8.8:53 | ozentekstil.com | udp |
| US | 8.8.8.8:53 | 4.187.104.172.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 171.39.242.20.in-addr.arpa | udp |
| TR | 89.19.30.75:80 | ozentekstil.com | tcp |
| US | 8.8.8.8:53 | finbelportal.com | udp |
| US | 8.8.8.8:53 | telanganadigital.com | udp |
| US | 8.8.8.8:53 | 75.30.19.89.in-addr.arpa | udp |
| US | 192.64.119.13:80 | telanganadigital.com | tcp |
| US | 8.8.8.8:53 | 240.221.184.93.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 13.119.64.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | www.telanganadigital.com | udp |
| DE | 91.195.240.19:80 | www.telanganadigital.com | tcp |
| US | 8.8.8.8:53 | 19.240.195.91.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 104.241.123.92.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 119.110.54.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 176.178.17.96.in-addr.arpa | udp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 8.8.8.8:53 | 0.204.248.87.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 209.178.17.96.in-addr.arpa | udp |
| US | 8.8.8.8:53 | udp | |
| US | 8.8.8.8:53 | 9.143.101.95.in-addr.arpa | udp |
Files
memory/4136-2-0x00000000006D0000-0x00000000006D9000-memory.dmp
memory/4136-3-0x0000000000400000-0x0000000000468000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\CC4F.tmp
| MD5 | 4f3387277ccbd6d1f21ac5c07fe4ca68 |
| SHA1 | e16506f662dc92023bf82def1d621497c8ab5890 |
| SHA256 | 767a3fc4a7a6818cdc3f0b99aaa95db694f6bcde719d2057a88b3d4df3d74fac |
| SHA512 | 9da199ac69e3c0d4e0c6307e0ab8178f12cc25cb2f14c3511f6b64e6e60a925c860f3263cb38353a97b55a71ef4d27f8cb7fa3cfc08e7c1a349fd8d209dfa219 |
memory/4136-1-0x00000000006E0000-0x00000000007E0000-memory.dmp
memory/3408-8-0x00000000030C0000-0x00000000030D5000-memory.dmp
memory/4136-9-0x0000000000400000-0x0000000000468000-memory.dmp
memory/4136-12-0x00000000006D0000-0x00000000006D9000-memory.dmp
C:\Users\Admin\AppData\Roaming\tjiicat
| MD5 | c3d46ec2a43121addb63f888898a6c4c |
| SHA1 | cef048818317c9fbc78aeb9a3616fa26b85adf9b |
| SHA256 | b84d0e2da061fe4351038a88a6baef71cd5743857eb5358d4396a3b5b3364a51 |
| SHA512 | fbaabd0854807a15233097869f39c2b91c61739db07c97af604e354a2e5592fac26bda46726f17b3eeb453fdabb568a93ff0e2b566f36fc2fc8c603c09d99317 |
C:\Users\Admin\AppData\Local\Temp\CC4F.tmp
| MD5 | ee33df995b961ad559b56a2df576a203 |
| SHA1 | f2e8b5b7051a651447d02065451c476b109072e6 |
| SHA256 | 8f5696ff5344ff60d67ac0c781897378ebbf336b9984bc9d0d4ae5fa5372bc22 |
| SHA512 | 9efa8e3d74312eaaabf5b68d092e6d461c703efd6c830fc7116882276e3fe17ed8a469372fe12e16cd70d96c5a13a322112d4c8f99c6e788fc12ac35d18cee6b |
memory/4752-21-0x0000000000400000-0x0000000000468000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\CC4F.tmp
| MD5 | c953939cb8623ccd1044e66f3b6a8048 |
| SHA1 | 8ca9d79b671fc088e05861096bddc1e29d5e9d75 |
| SHA256 | fc39c13b0463dc86750008f11f1a6f8f52b1abd1eae191e2afa8359ef9008d8c |
| SHA512 | 524b269faa6f14a56a70418e70f40ca9d98829a1561db5988980386e881a8f4f440bbd4e40b43bb39f27e4aad27dded86490fc8373dcc756ba549d27862d37dc |
C:\Users\Admin\AppData\Local\Temp\CC4F.tmp
| MD5 | 7032a184044b85768d5163f198addcc9 |
| SHA1 | b9aaac85b8ddeb8f9f6cab85e3e3ee7d131a01d8 |
| SHA256 | c12ae13ea4932025c1334d7eadb685e93e79320852a4d3f5e682c691860385c3 |
| SHA512 | a51adcb949b32b13e24d9026720b5ba123c48db917da87dd7fee2e841ea197ddfd29d83d4a6ad26c8ff0778c36b2d46a79b948cb954b4ed013e8e662f543444e |
memory/4752-20-0x0000000000650000-0x0000000000750000-memory.dmp
memory/4752-29-0x0000000000400000-0x0000000000468000-memory.dmp
memory/3408-26-0x0000000002770000-0x0000000002785000-memory.dmp
Analysis: behavioral1
Detonation Overview
Submitted
2023-12-28 04:36
Reported
2024-01-08 05:11
Platform
win7-20231215-en
Max time kernel
151s
Max time network
131s
Command Line
Signatures
SmokeLoader
Deletes itself
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\bjucvhe | N/A |
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\c3d46ec2a43121addb63f888898a6c4c.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\WerFault.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\WerFault.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\WerFault.exe | N/A |
Program crash
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\WerFault.exe | C:\Users\Admin\AppData\Roaming\bjucvhe |
Checks SCSI registry key(s)
| Description | Indicator | Process | Target |
| Key queried | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI | C:\Users\Admin\AppData\Local\Temp\c3d46ec2a43121addb63f888898a6c4c.exe | N/A |
| Key enumerated | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI | C:\Users\Admin\AppData\Local\Temp\c3d46ec2a43121addb63f888898a6c4c.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI | C:\Users\Admin\AppData\Local\Temp\c3d46ec2a43121addb63f888898a6c4c.exe | N/A |
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\c3d46ec2a43121addb63f888898a6c4c.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\c3d46ec2a43121addb63f888898a6c4c.exe | N/A |
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Suspicious behavior: MapViewOfSection
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\c3d46ec2a43121addb63f888898a6c4c.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeShutdownPrivilege | N/A | N/A | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 2560 wrote to memory of 2756 | N/A | C:\Windows\system32\taskeng.exe | C:\Users\Admin\AppData\Roaming\bjucvhe |
| PID 2560 wrote to memory of 2756 | N/A | C:\Windows\system32\taskeng.exe | C:\Users\Admin\AppData\Roaming\bjucvhe |
| PID 2560 wrote to memory of 2756 | N/A | C:\Windows\system32\taskeng.exe | C:\Users\Admin\AppData\Roaming\bjucvhe |
| PID 2560 wrote to memory of 2756 | N/A | C:\Windows\system32\taskeng.exe | C:\Users\Admin\AppData\Roaming\bjucvhe |
| PID 2756 wrote to memory of 2904 | N/A | C:\Users\Admin\AppData\Roaming\bjucvhe | C:\Windows\SysWOW64\WerFault.exe |
| PID 2756 wrote to memory of 2904 | N/A | C:\Users\Admin\AppData\Roaming\bjucvhe | C:\Windows\SysWOW64\WerFault.exe |
| PID 2756 wrote to memory of 2904 | N/A | C:\Users\Admin\AppData\Roaming\bjucvhe | C:\Windows\SysWOW64\WerFault.exe |
| PID 2756 wrote to memory of 2904 | N/A | C:\Users\Admin\AppData\Roaming\bjucvhe | C:\Windows\SysWOW64\WerFault.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\c3d46ec2a43121addb63f888898a6c4c.exe
"C:\Users\Admin\AppData\Local\Temp\c3d46ec2a43121addb63f888898a6c4c.exe"
C:\Windows\system32\taskeng.exe
taskeng.exe {D7F8D5FE-7E61-43A2-93E0-7E21C85006B0} S-1-5-21-1268429524-3929314613-1992311491-1000:XBTLDBHN\Admin:Interactive:[1]
C:\Users\Admin\AppData\Roaming\bjucvhe
C:\Users\Admin\AppData\Roaming\bjucvhe
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2756 -s 124
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | conceitosseg.com | udp |
| US | 8.8.8.8:53 | integrasidata.com | udp |
| SG | 172.104.187.4:80 | integrasidata.com | tcp |
| US | 8.8.8.8:53 | ozentekstil.com | udp |
| TR | 89.19.30.75:80 | ozentekstil.com | tcp |
| US | 8.8.8.8:53 | finbelportal.com | udp |
| US | 8.8.8.8:53 | telanganadigital.com | udp |
| US | 192.64.119.13:80 | telanganadigital.com | tcp |
| US | 8.8.8.8:53 | www.telanganadigital.com | udp |
| DE | 91.195.240.19:80 | www.telanganadigital.com | tcp |
Files
memory/2384-2-0x0000000000220000-0x0000000000229000-memory.dmp
\Users\Admin\AppData\Local\Temp\CC4F.tmp
| MD5 | 36ca5b2daa4e58c5615ac1a9a7a6b699 |
| SHA1 | 8f67423a5862010a80442cd5680bfe685cec6248 |
| SHA256 | 7c88ded1744ecd06994f0bf0301b62197bdd44be4367b9f7202c11c2f8e1c7c1 |
| SHA512 | 4a8d1f18ab11636817e3601674490fa5659b5fc0f01ef97251d53b21b780fdc0a49d1d540eca81859bd0d51a4d93b3c2f77e900313235f22f15cf23e00be4d39 |
memory/2384-4-0x0000000000400000-0x0000000000468000-memory.dmp
memory/2384-1-0x00000000005F0000-0x00000000006F0000-memory.dmp
memory/2384-9-0x0000000000220000-0x0000000000229000-memory.dmp
memory/2384-8-0x0000000000400000-0x0000000000468000-memory.dmp
memory/1256-7-0x00000000029F0000-0x0000000002A05000-memory.dmp
memory/2756-19-0x0000000000400000-0x0000000000468000-memory.dmp
memory/2756-18-0x0000000000630000-0x0000000000730000-memory.dmp
memory/2756-25-0x0000000000630000-0x0000000000730000-memory.dmp