Analysis
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max time kernel
146s -
max time network
148s -
platform
windows7_x64 -
resource
win7-20240903-en -
resource tags
arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system -
submitted
13-09-2024 19:55
Behavioral task
behavioral1
Sample
42d3f739021157d43f5608db253455463b6d8cc1150d2a7baf81f038a31650c3.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
42d3f739021157d43f5608db253455463b6d8cc1150d2a7baf81f038a31650c3.exe
Resource
win10v2004-20240802-en
General
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Target
42d3f739021157d43f5608db253455463b6d8cc1150d2a7baf81f038a31650c3.exe
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Size
11.0MB
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MD5
f3912f8a1495fc0372931b6bb77d0906
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SHA1
5371fd9aa587ef833b152b895870d346c5113d3f
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SHA256
42d3f739021157d43f5608db253455463b6d8cc1150d2a7baf81f038a31650c3
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SHA512
31ea2a07fa16beba63702237a07603eeda122d2f85fc7197e875c954204f510bd7a9f70978424c56d1ef4f7ac14d764d850c7a1504b5985f2154a12169373b90
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SSDEEP
196608:wtkBOgSWQdTEsAVwwBpMXF9xxAZle/7GpCFb58bKBe2dsltmvlCxqWPzlbVB0Qef:wtKORTDAnM3U8/+CFbKGB5KtmvlCxlP6
Malware Config
Signatures
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FatalRat
FatalRat is a modular infostealer family written in C++ first appearing in June 2021.
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Fatal Rat payload 3 IoCs
resource yara_rule behavioral1/memory/2744-16519-0x0000000000400000-0x00000000004F8000-memory.dmp fatalrat behavioral1/memory/18084-25229-0x0000000000400000-0x00000000004F8000-memory.dmp fatalrat behavioral1/memory/2504-25237-0x0000000000400000-0x00000000004F8000-memory.dmp fatalrat -
Executes dropped EXE 3 IoCs
pid Process 2744 sevchost.exe 2504 sevchost.exe 18084 sevchost.exe -
Loads dropped DLL 7 IoCs
pid Process 2552 42d3f739021157d43f5608db253455463b6d8cc1150d2a7baf81f038a31650c3.exe 2552 42d3f739021157d43f5608db253455463b6d8cc1150d2a7baf81f038a31650c3.exe 2552 42d3f739021157d43f5608db253455463b6d8cc1150d2a7baf81f038a31650c3.exe 2552 42d3f739021157d43f5608db253455463b6d8cc1150d2a7baf81f038a31650c3.exe 2552 42d3f739021157d43f5608db253455463b6d8cc1150d2a7baf81f038a31650c3.exe 2744 sevchost.exe 2744 sevchost.exe -
resource yara_rule behavioral1/memory/2552-45-0x00000000036A0000-0x00000000036C6000-memory.dmp upx -
resource yara_rule behavioral1/memory/2552-35-0x0000000000400000-0x0000000001DEA000-memory.dmp vmprotect behavioral1/memory/2552-39-0x0000000000400000-0x0000000001DEA000-memory.dmp vmprotect behavioral1/memory/2552-40-0x0000000000400000-0x0000000001DEA000-memory.dmp vmprotect behavioral1/memory/2552-58-0x0000000000400000-0x0000000001DEA000-memory.dmp vmprotect behavioral1/memory/2552-16524-0x0000000000400000-0x0000000001DEA000-memory.dmp vmprotect behavioral1/memory/2552-16510-0x0000000000400000-0x0000000001DEA000-memory.dmp vmprotect -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-1846800975-3917212583-2893086201-1000\Software\Microsoft\Windows\CurrentVersion\Run\SVP7 = "C:\\Users\\Admin\\AppData\\Local\\sevchost.exe" sevchost.exe -
Enumerates connected drives 3 TTPs 1 IoCs
Attempts to read the root path of hard drives other than the default C: drive.
description ioc Process File opened (read-only) \??\E: 42d3f739021157d43f5608db253455463b6d8cc1150d2a7baf81f038a31650c3.exe -
Suspicious use of NtSetInformationThreadHideFromDebugger 41 IoCs
pid Process 2744 sevchost.exe 2744 sevchost.exe 2504 sevchost.exe 2504 sevchost.exe 2504 sevchost.exe 18084 sevchost.exe 18084 sevchost.exe 2504 sevchost.exe 2504 sevchost.exe 2504 sevchost.exe 2504 sevchost.exe 2504 sevchost.exe 2504 sevchost.exe 2504 sevchost.exe 2504 sevchost.exe 2504 sevchost.exe 2504 sevchost.exe 2504 sevchost.exe 2504 sevchost.exe 2504 sevchost.exe 2504 sevchost.exe 2504 sevchost.exe 2504 sevchost.exe 2504 sevchost.exe 2504 sevchost.exe 2504 sevchost.exe 2504 sevchost.exe 2504 sevchost.exe 2504 sevchost.exe 2504 sevchost.exe 2504 sevchost.exe 2504 sevchost.exe 2504 sevchost.exe 2504 sevchost.exe 2504 sevchost.exe 2504 sevchost.exe 2504 sevchost.exe 2504 sevchost.exe 2504 sevchost.exe 2504 sevchost.exe 2504 sevchost.exe -
System Location Discovery: System Language Discovery 1 TTPs 4 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 42d3f739021157d43f5608db253455463b6d8cc1150d2a7baf81f038a31650c3.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language sevchost.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language sevchost.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language sevchost.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 2552 42d3f739021157d43f5608db253455463b6d8cc1150d2a7baf81f038a31650c3.exe 2552 42d3f739021157d43f5608db253455463b6d8cc1150d2a7baf81f038a31650c3.exe 2552 42d3f739021157d43f5608db253455463b6d8cc1150d2a7baf81f038a31650c3.exe 2552 42d3f739021157d43f5608db253455463b6d8cc1150d2a7baf81f038a31650c3.exe 2552 42d3f739021157d43f5608db253455463b6d8cc1150d2a7baf81f038a31650c3.exe 2552 42d3f739021157d43f5608db253455463b6d8cc1150d2a7baf81f038a31650c3.exe 2552 42d3f739021157d43f5608db253455463b6d8cc1150d2a7baf81f038a31650c3.exe 2552 42d3f739021157d43f5608db253455463b6d8cc1150d2a7baf81f038a31650c3.exe 2552 42d3f739021157d43f5608db253455463b6d8cc1150d2a7baf81f038a31650c3.exe 2552 42d3f739021157d43f5608db253455463b6d8cc1150d2a7baf81f038a31650c3.exe 2552 42d3f739021157d43f5608db253455463b6d8cc1150d2a7baf81f038a31650c3.exe 2552 42d3f739021157d43f5608db253455463b6d8cc1150d2a7baf81f038a31650c3.exe 2552 42d3f739021157d43f5608db253455463b6d8cc1150d2a7baf81f038a31650c3.exe 2552 42d3f739021157d43f5608db253455463b6d8cc1150d2a7baf81f038a31650c3.exe 2552 42d3f739021157d43f5608db253455463b6d8cc1150d2a7baf81f038a31650c3.exe 2552 42d3f739021157d43f5608db253455463b6d8cc1150d2a7baf81f038a31650c3.exe 2552 42d3f739021157d43f5608db253455463b6d8cc1150d2a7baf81f038a31650c3.exe 2552 42d3f739021157d43f5608db253455463b6d8cc1150d2a7baf81f038a31650c3.exe 2552 42d3f739021157d43f5608db253455463b6d8cc1150d2a7baf81f038a31650c3.exe 2552 42d3f739021157d43f5608db253455463b6d8cc1150d2a7baf81f038a31650c3.exe 2552 42d3f739021157d43f5608db253455463b6d8cc1150d2a7baf81f038a31650c3.exe 2552 42d3f739021157d43f5608db253455463b6d8cc1150d2a7baf81f038a31650c3.exe 2552 42d3f739021157d43f5608db253455463b6d8cc1150d2a7baf81f038a31650c3.exe 2552 42d3f739021157d43f5608db253455463b6d8cc1150d2a7baf81f038a31650c3.exe 2552 42d3f739021157d43f5608db253455463b6d8cc1150d2a7baf81f038a31650c3.exe 2552 42d3f739021157d43f5608db253455463b6d8cc1150d2a7baf81f038a31650c3.exe 2552 42d3f739021157d43f5608db253455463b6d8cc1150d2a7baf81f038a31650c3.exe 2552 42d3f739021157d43f5608db253455463b6d8cc1150d2a7baf81f038a31650c3.exe 2552 42d3f739021157d43f5608db253455463b6d8cc1150d2a7baf81f038a31650c3.exe 2552 42d3f739021157d43f5608db253455463b6d8cc1150d2a7baf81f038a31650c3.exe 2552 42d3f739021157d43f5608db253455463b6d8cc1150d2a7baf81f038a31650c3.exe 2552 42d3f739021157d43f5608db253455463b6d8cc1150d2a7baf81f038a31650c3.exe 2552 42d3f739021157d43f5608db253455463b6d8cc1150d2a7baf81f038a31650c3.exe 2552 42d3f739021157d43f5608db253455463b6d8cc1150d2a7baf81f038a31650c3.exe 2552 42d3f739021157d43f5608db253455463b6d8cc1150d2a7baf81f038a31650c3.exe 2552 42d3f739021157d43f5608db253455463b6d8cc1150d2a7baf81f038a31650c3.exe 2552 42d3f739021157d43f5608db253455463b6d8cc1150d2a7baf81f038a31650c3.exe 2552 42d3f739021157d43f5608db253455463b6d8cc1150d2a7baf81f038a31650c3.exe 2552 42d3f739021157d43f5608db253455463b6d8cc1150d2a7baf81f038a31650c3.exe 2552 42d3f739021157d43f5608db253455463b6d8cc1150d2a7baf81f038a31650c3.exe 2552 42d3f739021157d43f5608db253455463b6d8cc1150d2a7baf81f038a31650c3.exe 2552 42d3f739021157d43f5608db253455463b6d8cc1150d2a7baf81f038a31650c3.exe 2552 42d3f739021157d43f5608db253455463b6d8cc1150d2a7baf81f038a31650c3.exe 2552 42d3f739021157d43f5608db253455463b6d8cc1150d2a7baf81f038a31650c3.exe 2552 42d3f739021157d43f5608db253455463b6d8cc1150d2a7baf81f038a31650c3.exe 2552 42d3f739021157d43f5608db253455463b6d8cc1150d2a7baf81f038a31650c3.exe 2552 42d3f739021157d43f5608db253455463b6d8cc1150d2a7baf81f038a31650c3.exe 2552 42d3f739021157d43f5608db253455463b6d8cc1150d2a7baf81f038a31650c3.exe 2552 42d3f739021157d43f5608db253455463b6d8cc1150d2a7baf81f038a31650c3.exe 2552 42d3f739021157d43f5608db253455463b6d8cc1150d2a7baf81f038a31650c3.exe 2552 42d3f739021157d43f5608db253455463b6d8cc1150d2a7baf81f038a31650c3.exe 2552 42d3f739021157d43f5608db253455463b6d8cc1150d2a7baf81f038a31650c3.exe 2552 42d3f739021157d43f5608db253455463b6d8cc1150d2a7baf81f038a31650c3.exe 2552 42d3f739021157d43f5608db253455463b6d8cc1150d2a7baf81f038a31650c3.exe 2552 42d3f739021157d43f5608db253455463b6d8cc1150d2a7baf81f038a31650c3.exe 2552 42d3f739021157d43f5608db253455463b6d8cc1150d2a7baf81f038a31650c3.exe 2552 42d3f739021157d43f5608db253455463b6d8cc1150d2a7baf81f038a31650c3.exe 2552 42d3f739021157d43f5608db253455463b6d8cc1150d2a7baf81f038a31650c3.exe 2552 42d3f739021157d43f5608db253455463b6d8cc1150d2a7baf81f038a31650c3.exe 2552 42d3f739021157d43f5608db253455463b6d8cc1150d2a7baf81f038a31650c3.exe 2552 42d3f739021157d43f5608db253455463b6d8cc1150d2a7baf81f038a31650c3.exe 2552 42d3f739021157d43f5608db253455463b6d8cc1150d2a7baf81f038a31650c3.exe 2552 42d3f739021157d43f5608db253455463b6d8cc1150d2a7baf81f038a31650c3.exe 2552 42d3f739021157d43f5608db253455463b6d8cc1150d2a7baf81f038a31650c3.exe -
Suspicious use of AdjustPrivilegeToken 3 IoCs
description pid Process Token: SeDebugPrivilege 2744 sevchost.exe Token: SeDebugPrivilege 2504 sevchost.exe Token: SeDebugPrivilege 18084 sevchost.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 2552 42d3f739021157d43f5608db253455463b6d8cc1150d2a7baf81f038a31650c3.exe 2552 42d3f739021157d43f5608db253455463b6d8cc1150d2a7baf81f038a31650c3.exe -
Suspicious use of WriteProcessMemory 12 IoCs
description pid Process procid_target PID 2552 wrote to memory of 2744 2552 42d3f739021157d43f5608db253455463b6d8cc1150d2a7baf81f038a31650c3.exe 31 PID 2552 wrote to memory of 2744 2552 42d3f739021157d43f5608db253455463b6d8cc1150d2a7baf81f038a31650c3.exe 31 PID 2552 wrote to memory of 2744 2552 42d3f739021157d43f5608db253455463b6d8cc1150d2a7baf81f038a31650c3.exe 31 PID 2552 wrote to memory of 2744 2552 42d3f739021157d43f5608db253455463b6d8cc1150d2a7baf81f038a31650c3.exe 31 PID 2552 wrote to memory of 2504 2552 42d3f739021157d43f5608db253455463b6d8cc1150d2a7baf81f038a31650c3.exe 32 PID 2552 wrote to memory of 2504 2552 42d3f739021157d43f5608db253455463b6d8cc1150d2a7baf81f038a31650c3.exe 32 PID 2552 wrote to memory of 2504 2552 42d3f739021157d43f5608db253455463b6d8cc1150d2a7baf81f038a31650c3.exe 32 PID 2552 wrote to memory of 2504 2552 42d3f739021157d43f5608db253455463b6d8cc1150d2a7baf81f038a31650c3.exe 32 PID 2744 wrote to memory of 18084 2744 sevchost.exe 33 PID 2744 wrote to memory of 18084 2744 sevchost.exe 33 PID 2744 wrote to memory of 18084 2744 sevchost.exe 33 PID 2744 wrote to memory of 18084 2744 sevchost.exe 33
Processes
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C:\Users\Admin\AppData\Local\Temp\42d3f739021157d43f5608db253455463b6d8cc1150d2a7baf81f038a31650c3.exe"C:\Users\Admin\AppData\Local\Temp\42d3f739021157d43f5608db253455463b6d8cc1150d2a7baf81f038a31650c3.exe"1⤵
- Loads dropped DLL
- Enumerates connected drives
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2552 -
C:\Users\Admin\AppData\Local\Temp\sevchost.exeC:\Users\Admin\AppData\Local\Temp\\sevchost.exe2⤵
- Executes dropped EXE
- Loads dropped DLL
- Adds Run key to start application
- Suspicious use of NtSetInformationThreadHideFromDebugger
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2744 -
C:\Users\Admin\AppData\Local\sevchost.exe"C:\Users\Admin\AppData\Local\sevchost.exe"3⤵
- Executes dropped EXE
- Suspicious use of NtSetInformationThreadHideFromDebugger
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
PID:18084
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C:\Users\Admin\Documents\sevchost.exeC:\Users\Admin\Documents\\sevchost.exe2⤵
- Executes dropped EXE
- Suspicious use of NtSetInformationThreadHideFromDebugger
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
PID:2504
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
908KB
MD58390ee2fd97cde38668ab3cf59efa7eb
SHA1596911c48f40c00e494abc04f603f2a3244b25e7
SHA2565bbab49b432fc0fb0e4874116b896e4aaae495bb35bad16424e2ac7c67ba1159
SHA5125c4cd607203f9028b3bc1b0c69dd8e2dc4e52c989fb5a764f6d43364bd055644a1c19b106d8bb207d76b2dd287e9564df63cd9ea0d29c4f9ea51d96dfa3df1c8
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Filesize
2.8MB
MD54bc970a97300b1a725d44bba23d8697a
SHA16f1eb181153692814e038e2f851d0734646f78f8
SHA256c9d8fb5311ae6018dc1ca72774cb7efeba5c115c827a5cfb795b3580499e323d
SHA51203968ca876b7e584de0a1418cca1dd2036fd0b4744f86d69aee5691a42061e284f8d9577293ef3f656be332f7da5ca276f85c6393bd6d8eb7de181baec0285f8