Analysis
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max time kernel
151s -
max time network
125s -
platform
windows7_x64 -
resource
win7-20240221-en -
resource tags
arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system -
submitted
18/03/2024, 23:41
Behavioral task
behavioral1
Sample
d4a9a0f90082268ebe5b0ecb8c0d8844.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
d4a9a0f90082268ebe5b0ecb8c0d8844.exe
Resource
win10v2004-20240226-en
General
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Target
d4a9a0f90082268ebe5b0ecb8c0d8844.exe
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Size
139KB
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MD5
d4a9a0f90082268ebe5b0ecb8c0d8844
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SHA1
f75c068a1849b43ad7aa78a908ddc6b5fc14285f
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SHA256
8f7074c17844d70b1da84771256367d3d088f0d039ee7758475d9bba09b461c5
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SHA512
23be1c3265ed8d4d6c95bdda1c7114ffc0fd1a5501c4d7691c3a420cc2c09fd06b142430ebb3eef7688112c7e2000ca79c54b4ab73424ea6349478975f87987a
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SSDEEP
3072:SwzbCYMaEMBgDwrQhkAaPuJDhjawpyip0T7Ku/VxE1qF9hl7GXB:DC1XzeAaPqdawIq0T7zTRo
Malware Config
Signatures
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Executes dropped EXE 1 IoCs
pid Process 2100 ydos.exe -
Loads dropped DLL 1 IoCs
pid Process 1224 d4a9a0f90082268ebe5b0ecb8c0d8844.exe -
resource yara_rule behavioral1/memory/1224-0-0x0000000000400000-0x0000000000455000-memory.dmp upx behavioral1/files/0x0009000000012265-6.dat upx behavioral1/memory/1224-8-0x00000000002A0000-0x00000000002F5000-memory.dmp upx -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2461186416-2307104501-1787948496-1000\Software\Microsoft\Windows\CurrentVersion\Run\{974FDE92-3EC7-7A1D-934F-D6A726919145} = "C:\\Users\\Admin\\AppData\\Roaming\\Fova\\ydos.exe" ydos.exe -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 1224 set thread context of 1212 1224 d4a9a0f90082268ebe5b0ecb8c0d8844.exe 29 -
description ioc Process Key created \REGISTRY\USER\S-1-5-21-2461186416-2307104501-1787948496-1000\Software\Microsoft\Internet Explorer\Privacy d4a9a0f90082268ebe5b0ecb8c0d8844.exe Set value (int) \REGISTRY\USER\S-1-5-21-2461186416-2307104501-1787948496-1000\Software\Microsoft\Internet Explorer\Privacy\CleanCookies = "0" d4a9a0f90082268ebe5b0ecb8c0d8844.exe -
Suspicious behavior: EnumeratesProcesses 33 IoCs
pid Process 2100 ydos.exe 2100 ydos.exe 2100 ydos.exe 2100 ydos.exe 2100 ydos.exe 2100 ydos.exe 2100 ydos.exe 2100 ydos.exe 2100 ydos.exe 2100 ydos.exe 2100 ydos.exe 2100 ydos.exe 2100 ydos.exe 2100 ydos.exe 2100 ydos.exe 2100 ydos.exe 2100 ydos.exe 2100 ydos.exe 2100 ydos.exe 2100 ydos.exe 2100 ydos.exe 2100 ydos.exe 2100 ydos.exe 2100 ydos.exe 2100 ydos.exe 2100 ydos.exe 2100 ydos.exe 2100 ydos.exe 2100 ydos.exe 2100 ydos.exe 2100 ydos.exe 2100 ydos.exe 2100 ydos.exe -
Suspicious use of AdjustPrivilegeToken 3 IoCs
description pid Process Token: SeSecurityPrivilege 1224 d4a9a0f90082268ebe5b0ecb8c0d8844.exe Token: SeSecurityPrivilege 1224 d4a9a0f90082268ebe5b0ecb8c0d8844.exe Token: SeSecurityPrivilege 1224 d4a9a0f90082268ebe5b0ecb8c0d8844.exe -
Suspicious use of WriteProcessMemory 53 IoCs
description pid Process procid_target PID 1224 wrote to memory of 2100 1224 d4a9a0f90082268ebe5b0ecb8c0d8844.exe 28 PID 1224 wrote to memory of 2100 1224 d4a9a0f90082268ebe5b0ecb8c0d8844.exe 28 PID 1224 wrote to memory of 2100 1224 d4a9a0f90082268ebe5b0ecb8c0d8844.exe 28 PID 1224 wrote to memory of 2100 1224 d4a9a0f90082268ebe5b0ecb8c0d8844.exe 28 PID 2100 wrote to memory of 1272 2100 ydos.exe 19 PID 2100 wrote to memory of 1272 2100 ydos.exe 19 PID 2100 wrote to memory of 1272 2100 ydos.exe 19 PID 2100 wrote to memory of 1272 2100 ydos.exe 19 PID 2100 wrote to memory of 1272 2100 ydos.exe 19 PID 2100 wrote to memory of 1380 2100 ydos.exe 20 PID 2100 wrote to memory of 1380 2100 ydos.exe 20 PID 2100 wrote to memory of 1380 2100 ydos.exe 20 PID 2100 wrote to memory of 1380 2100 ydos.exe 20 PID 2100 wrote to memory of 1380 2100 ydos.exe 20 PID 2100 wrote to memory of 1416 2100 ydos.exe 21 PID 2100 wrote to memory of 1416 2100 ydos.exe 21 PID 2100 wrote to memory of 1416 2100 ydos.exe 21 PID 2100 wrote to memory of 1416 2100 ydos.exe 21 PID 2100 wrote to memory of 1416 2100 ydos.exe 21 PID 2100 wrote to memory of 2156 2100 ydos.exe 23 PID 2100 wrote to memory of 2156 2100 ydos.exe 23 PID 2100 wrote to memory of 2156 2100 ydos.exe 23 PID 2100 wrote to memory of 2156 2100 ydos.exe 23 PID 2100 wrote to memory of 2156 2100 ydos.exe 23 PID 2100 wrote to memory of 1224 2100 ydos.exe 27 PID 2100 wrote to memory of 1224 2100 ydos.exe 27 PID 2100 wrote to memory of 1224 2100 ydos.exe 27 PID 2100 wrote to memory of 1224 2100 ydos.exe 27 PID 2100 wrote to memory of 1224 2100 ydos.exe 27 PID 1224 wrote to memory of 1212 1224 d4a9a0f90082268ebe5b0ecb8c0d8844.exe 29 PID 1224 wrote to memory of 1212 1224 d4a9a0f90082268ebe5b0ecb8c0d8844.exe 29 PID 1224 wrote to memory of 1212 1224 d4a9a0f90082268ebe5b0ecb8c0d8844.exe 29 PID 1224 wrote to memory of 1212 1224 d4a9a0f90082268ebe5b0ecb8c0d8844.exe 29 PID 1224 wrote to memory of 1212 1224 d4a9a0f90082268ebe5b0ecb8c0d8844.exe 29 PID 1224 wrote to memory of 1212 1224 d4a9a0f90082268ebe5b0ecb8c0d8844.exe 29 PID 1224 wrote to memory of 1212 1224 d4a9a0f90082268ebe5b0ecb8c0d8844.exe 29 PID 1224 wrote to memory of 1212 1224 d4a9a0f90082268ebe5b0ecb8c0d8844.exe 29 PID 1224 wrote to memory of 1212 1224 d4a9a0f90082268ebe5b0ecb8c0d8844.exe 29 PID 2100 wrote to memory of 2688 2100 ydos.exe 30 PID 2100 wrote to memory of 2688 2100 ydos.exe 30 PID 2100 wrote to memory of 2688 2100 ydos.exe 30 PID 2100 wrote to memory of 2688 2100 ydos.exe 30 PID 2100 wrote to memory of 2688 2100 ydos.exe 30 PID 2100 wrote to memory of 2836 2100 ydos.exe 31 PID 2100 wrote to memory of 2836 2100 ydos.exe 31 PID 2100 wrote to memory of 2836 2100 ydos.exe 31 PID 2100 wrote to memory of 2836 2100 ydos.exe 31 PID 2100 wrote to memory of 2836 2100 ydos.exe 31 PID 2100 wrote to memory of 1340 2100 ydos.exe 32 PID 2100 wrote to memory of 1340 2100 ydos.exe 32 PID 2100 wrote to memory of 1340 2100 ydos.exe 32 PID 2100 wrote to memory of 1340 2100 ydos.exe 32 PID 2100 wrote to memory of 1340 2100 ydos.exe 32
Processes
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C:\Windows\system32\taskhost.exe"taskhost.exe"1⤵PID:1272
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C:\Windows\system32\Dwm.exe"C:\Windows\system32\Dwm.exe"1⤵PID:1380
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C:\Windows\Explorer.EXEC:\Windows\Explorer.EXE1⤵PID:1416
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C:\Users\Admin\AppData\Local\Temp\d4a9a0f90082268ebe5b0ecb8c0d8844.exe"C:\Users\Admin\AppData\Local\Temp\d4a9a0f90082268ebe5b0ecb8c0d8844.exe"2⤵
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Modifies Internet Explorer settings
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1224 -
C:\Users\Admin\AppData\Roaming\Fova\ydos.exe"C:\Users\Admin\AppData\Roaming\Fova\ydos.exe"3⤵
- Executes dropped EXE
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:2100
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\system32\cmd.exe" /c "C:\Users\Admin\AppData\Local\Temp\tmp8331d49c.bat"3⤵PID:1212
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C:\Windows\system32\DllHost.exeC:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}1⤵PID:2156
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C:\Windows\system32\conhost.exe\??\C:\Windows\system32\conhost.exe "18757031982147370148-17337496101242346351961955892-204793670512716135342027449854"1⤵PID:2688
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C:\Windows\system32\DllHost.exeC:\Windows\system32\DllHost.exe /Processid:{F9717507-6651-4EDB-BFF7-AE615179BCCF}1⤵PID:2836
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C:\Windows\system32\DllHost.exeC:\Windows\system32\DllHost.exe /Processid:{F9717507-6651-4EDB-BFF7-AE615179BCCF}1⤵PID:1340
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
366B
MD531b5a4876c491bfebf5a3d2576644076
SHA11f2295f6c40a5ddb7694122f9b028a98d399f944
SHA256aae4c246d87b1d80162602d6a33f3dbdf155ff2cdcd035dc8b989e3cb9ac43fd
SHA512b8b6a8593553a752a8673371f578459c4b847e4f7516dd3da54472eae883dec2ea4e0b91a32289f527ceba4d5c5ff78555fb0239de5574a1a005b523cbe19611
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Filesize
139KB
MD58160024fe2e12ee2c644bd1696189f53
SHA10e598b5393aff7f6d2aed1d975976e154e298ff0
SHA25630c73e7b491a9a8aaf61a3bdd3f122de4ab7364365ac08e1ad03d5cff109fa10
SHA51277dc1f495c6f6f3864037e0eb0f73a4c91fcd27f5c9054631df78a75e745ab77103d37da91179fb57804e9d8c502c78f6ce77d11d74c1cb3d3d0a13bf9b9ec8b