Analysis
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max time kernel
4294181s -
max time network
124s -
platform
windows7_x64 -
resource
win7-20220223-en -
submitted
04-03-2022 16:53
Static task
static1
Behavioral task
behavioral1
Sample
Epludok.exe
Resource
win7-20220223-en
General
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Target
Epludok.exe
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Size
760KB
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MD5
44d3e3a2192ac3389703aa8dd76cc2a4
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SHA1
c804473e0d109785e6684190406657322e14b79b
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SHA256
4f227641cdcdea06d222012087bfc21a3eb4bf62ffaac2990e2f01bf0ec62809
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SHA512
ba31417ea20644ab29a62723db058ef2a3f3f2ddc340b69505e73beed1b2c26234ffd3175f1b70882e95b072523747ffad0daeb4c34eb3400df99e09d8910f3f
Malware Config
Signatures
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Adds Run key to start application 2 TTPs 1 IoCs
Processes:
Epludok.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-1405931862-909307831-4085185274-1000\Software\Microsoft\Windows\CurrentVersion\Run\Epludok = "C:\\Users\\Public\\kodulpE.url" Epludok.exe -
Program crash 1 IoCs
Processes:
WerFault.exepid pid_target process target process 972 1548 WerFault.exe logagent.exe -
Runs net.exe
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Suspicious behavior: EnumeratesProcesses 1 IoCs
Processes:
powershell.exepid process 924 powershell.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
powershell.exedescription pid process Token: SeDebugPrivilege 924 powershell.exe -
Suspicious use of WriteProcessMemory 31 IoCs
Processes:
Epludok.exelogagent.execmd.execmd.exenet.exedescription pid process target process PID 2040 wrote to memory of 1548 2040 Epludok.exe logagent.exe PID 2040 wrote to memory of 1548 2040 Epludok.exe logagent.exe PID 2040 wrote to memory of 1548 2040 Epludok.exe logagent.exe PID 2040 wrote to memory of 1548 2040 Epludok.exe logagent.exe PID 2040 wrote to memory of 1548 2040 Epludok.exe logagent.exe PID 2040 wrote to memory of 1548 2040 Epludok.exe logagent.exe PID 2040 wrote to memory of 1548 2040 Epludok.exe logagent.exe PID 2040 wrote to memory of 1348 2040 Epludok.exe cmd.exe PID 2040 wrote to memory of 1348 2040 Epludok.exe cmd.exe PID 2040 wrote to memory of 1348 2040 Epludok.exe cmd.exe PID 2040 wrote to memory of 1348 2040 Epludok.exe cmd.exe PID 1548 wrote to memory of 972 1548 logagent.exe WerFault.exe PID 1548 wrote to memory of 972 1548 logagent.exe WerFault.exe PID 1548 wrote to memory of 972 1548 logagent.exe WerFault.exe PID 1548 wrote to memory of 972 1548 logagent.exe WerFault.exe PID 1348 wrote to memory of 1800 1348 cmd.exe cmd.exe PID 1348 wrote to memory of 1800 1348 cmd.exe cmd.exe PID 1348 wrote to memory of 1800 1348 cmd.exe cmd.exe PID 1348 wrote to memory of 1800 1348 cmd.exe cmd.exe PID 1800 wrote to memory of 1696 1800 cmd.exe net.exe PID 1800 wrote to memory of 1696 1800 cmd.exe net.exe PID 1800 wrote to memory of 1696 1800 cmd.exe net.exe PID 1800 wrote to memory of 1696 1800 cmd.exe net.exe PID 1696 wrote to memory of 1500 1696 net.exe net1.exe PID 1696 wrote to memory of 1500 1696 net.exe net1.exe PID 1696 wrote to memory of 1500 1696 net.exe net1.exe PID 1696 wrote to memory of 1500 1696 net.exe net1.exe PID 1800 wrote to memory of 924 1800 cmd.exe powershell.exe PID 1800 wrote to memory of 924 1800 cmd.exe powershell.exe PID 1800 wrote to memory of 924 1800 cmd.exe powershell.exe PID 1800 wrote to memory of 924 1800 cmd.exe powershell.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\Epludok.exe"C:\Users\Admin\AppData\Local\Temp\Epludok.exe"1⤵
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\logagent.exeC:\Windows\System32\logagent.exe2⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 1548 -s 1403⤵
- Program crash
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C:\Windows\SysWOW64\cmd.execmd /c ""C:\Users\Public\Epludokt.bat" "2⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\cmd.exeC:\Windows\system32\cmd.exe /K C:\Users\Public\EpludokO.bat3⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\net.exenet session4⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\net1.exeC:\Windows\system32\net1 session5⤵
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -WindowStyle Hidden -inputformat none -outputformat none -NonInteractive -Command "Add-MpPreference -ExclusionPath 'C:\Users'"4⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
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Downloads
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C:\Users\Public\Cdex.batMD5
213c60adf1c9ef88dc3c9b2d579959d2
SHA1e4d2ad7b22b1a8b5b1f7a702b303c7364b0ee021
SHA25637c59c8398279916cfce45f8c5e3431058248f5e3bef4d9f5c0f44a7d564f82e
SHA512fe897d9caa306b0e761b2fd61bb5dc32a53bfaad1ce767c6860af4e3ad59c8f3257228a6e1072dab0f990cb51c59c648084ba419ac6bc5c0a99bdffa569217b7
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C:\Users\Public\EpludokO.batMD5
df48c09f243ebcc8a165f77a1c2bf889
SHA1455f7db0adcc2a58d006f1630fb0bd55cd868c07
SHA2564ef9821678da07138c19405387f3fb95e409fbd461c7b8d847c05075facd63ca
SHA512735838c7cca953697ded48adfcd037b7f198072a8962f5940ce12e1bb1c7dd8c1f257a829276f5f5456f776f5bd13342222dd6e0dfc8f18a23f464f2c8d8f1cc
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C:\Users\Public\Epludokt.batMD5
f229d960a7904ac2ec6065f25ca9333b
SHA17702e067ec3edc567bb29f8da56723d2740f9939
SHA25675bc1cd2ea27a701ff672aa9d3f28630bc079c8df41ba17ea9331c55261b3c25
SHA5123d980b3d7153385acda0732e9eda29f34aeb4105415d8effb3f4fbd5309828d511bb22d8c406a3375586391cf6a4bfd0d25964f755918c1bf91959c03ec38b84
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memory/924-70-0x0000000073710000-0x0000000073CBB000-memory.dmpFilesize
5.7MB
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memory/924-71-0x00000000024F0000-0x000000000313A000-memory.dmpFilesize
12.3MB
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memory/924-72-0x0000000073710000-0x0000000073CBB000-memory.dmpFilesize
5.7MB
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memory/924-73-0x00000000024F0000-0x000000000313A000-memory.dmpFilesize
12.3MB
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memory/924-74-0x00000000024F0000-0x000000000313A000-memory.dmpFilesize
12.3MB
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memory/1548-61-0x0000000000080000-0x0000000000081000-memory.dmpFilesize
4KB
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memory/1548-59-0x0000000072480000-0x00000000724AE000-memory.dmpFilesize
184KB
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memory/2040-57-0x0000000000400000-0x00000000004C4000-memory.dmpFilesize
784KB
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memory/2040-56-0x0000000000230000-0x0000000000231000-memory.dmpFilesize
4KB
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memory/2040-69-0x0000000004886000-0x0000000004887000-memory.dmpFilesize
4KB
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memory/2040-54-0x0000000075751000-0x0000000075753000-memory.dmpFilesize
8KB