Analysis
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max time kernel
123s -
max time network
141s -
platform
windows10-2004_x64 -
resource
win10v2004-20230831-en -
resource tags
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submitted
05-09-2023 18:21
General
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Target
JC_a945f87d013f6b70b25cf80ed405f0636d4d2c968079cfd542bd2eda37aba7d1.exe
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Size
1.6MB
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MD5
1bcddbf266ca5ead13f8fda22f798fd6
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SHA1
a416fc0d6616d02d9032c63e2f1dea351fc356d9
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SHA256
a945f87d013f6b70b25cf80ed405f0636d4d2c968079cfd542bd2eda37aba7d1
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SHA512
4bee8aa62248c7581349e308bd2861145a9c8a937f0c8a5bfb3c5d0a6952b7227a5d9328600e7349eb8c60f07ae75e695c9c5b0f0b1f56b2bd916417d6abe979
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SSDEEP
49152:fjPrzD4vARLDQNZw9vnQ1MSltub4RWfl7RVwO+6N:fDrzD4vA1DQ2gfI4e9VVT
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 1 IoCs
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Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 1 IoCs
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Downloads MZ/PE file
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Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
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Executes dropped EXE 4 IoCs
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Identifies Wine through registry keys 2 TTPs 1 IoCs
Wine is a compatibility layer capable of running Windows applications, which can be used as sandboxing environment.
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UPX packed file 9 IoCs
Detects executables packed with UPX/modified UPX open source packer.
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Adds Run key to start application 2 TTPs 2 IoCs
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Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
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Suspicious use of SetThreadContext 2 IoCs
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Drops file in Program Files directory 64 IoCs
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Drops file in Windows directory 3 IoCs
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Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Checks processor information in registry 2 TTPs 2 IoCs
Processor information is often read in order to detect sandboxing environments.
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Modifies registry class 1 IoCs
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Suspicious behavior: EnumeratesProcesses 64 IoCs
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Suspicious use of AdjustPrivilegeToken 1 IoCs
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Suspicious use of SetWindowsHookEx 6 IoCs
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Suspicious use of WriteProcessMemory 20 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\JC_a945f87d013f6b70b25cf80ed405f0636d4d2c968079cfd542bd2eda37aba7d1.exe"C:\Users\Admin\AppData\Local\Temp\JC_a945f87d013f6b70b25cf80ed405f0636d4d2c968079cfd542bd2eda37aba7d1.exe"1⤵
- Checks computer location settings
- Drops file in Program Files directory
- Suspicious use of WriteProcessMemory
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C:\Program Files (x86)\q1.exe"C:\Program Files (x86)\q1.exe"2⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Drops file in Windows directory
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
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C:\Windows\DNomb\spolsvt.exeC:\Windows\DNomb\spolsvt.exe3⤵
- Executes dropped EXE
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
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C:\Users\Public\Documents\t\spolsvt.exeC:\Users\Public\Documents\t\spolsvt.exe4⤵
- Executes dropped EXE
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\System32\rundll32.exeC:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding1⤵
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C:\Users\Public\Documents\123\PTvrst.exe"C:\Users\Public\Documents\123\PTvrst.exe"1⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Executes dropped EXE
- Identifies Wine through registry keys
- Adds Run key to start application
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of SetWindowsHookEx
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
395KB
MD532865e3033c398c38c8e1d29482ca61e
SHA16b6b220cda653101a0adcc1f027016f2262292a6
SHA256b58c30c03b5f0634918ca3e582e5835df073f0c93cde562a1651cd6ea4d4227c
SHA51254795c14d468e31b964156e67156d11a08dd7ad2b2673969bc5044932c00c2dbfb69eb7d08aa72672818e56b7cbd3970ba620ffe8aabafe98e343f2b00e28631
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Filesize
395KB
MD532865e3033c398c38c8e1d29482ca61e
SHA16b6b220cda653101a0adcc1f027016f2262292a6
SHA256b58c30c03b5f0634918ca3e582e5835df073f0c93cde562a1651cd6ea4d4227c
SHA51254795c14d468e31b964156e67156d11a08dd7ad2b2673969bc5044932c00c2dbfb69eb7d08aa72672818e56b7cbd3970ba620ffe8aabafe98e343f2b00e28631
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Filesize
395KB
MD532865e3033c398c38c8e1d29482ca61e
SHA16b6b220cda653101a0adcc1f027016f2262292a6
SHA256b58c30c03b5f0634918ca3e582e5835df073f0c93cde562a1651cd6ea4d4227c
SHA51254795c14d468e31b964156e67156d11a08dd7ad2b2673969bc5044932c00c2dbfb69eb7d08aa72672818e56b7cbd3970ba620ffe8aabafe98e343f2b00e28631
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Filesize
1.2MB
MD5d22cfb5bfaeb1503b12b07e53ef0a149
SHA18ea2c85e363f551a159fabd65377affed4e417a1
SHA256260464fb05210cfb30ef7a12d568f75eb781634b251d958cae8911948f6ca360
SHA512151024cb2960b1ee485ded7ccbb753fe368a93fda5699af72e568667fa54bfb0d1732444e7b60efaab6d372204157cdb6abbf8862d0e89d612dd963342215e45
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Filesize
1.2MB
MD5d22cfb5bfaeb1503b12b07e53ef0a149
SHA18ea2c85e363f551a159fabd65377affed4e417a1
SHA256260464fb05210cfb30ef7a12d568f75eb781634b251d958cae8911948f6ca360
SHA512151024cb2960b1ee485ded7ccbb753fe368a93fda5699af72e568667fa54bfb0d1732444e7b60efaab6d372204157cdb6abbf8862d0e89d612dd963342215e45
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Filesize
16KB
MD5cdce4713e784ae069d73723034a957ff
SHA19a393a6bab6568f1a774fb753353223f11367e09
SHA256b29e48102ecb3d3614e8980a8b8cc63dd2b993c6346f466479244ec2b47b69d8
SHA5120a3a59a305cc2a6fad4e1315b0bcc5a4129595dfe1e8b703363fa02528d2d7c48d3fd22d365708be84a5557cf1916873df9563c454732f93f94a66e7e3b9fb0f
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Filesize
16KB
MD5cdce4713e784ae069d73723034a957ff
SHA19a393a6bab6568f1a774fb753353223f11367e09
SHA256b29e48102ecb3d3614e8980a8b8cc63dd2b993c6346f466479244ec2b47b69d8
SHA5120a3a59a305cc2a6fad4e1315b0bcc5a4129595dfe1e8b703363fa02528d2d7c48d3fd22d365708be84a5557cf1916873df9563c454732f93f94a66e7e3b9fb0f
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Filesize
9KB
MD5523d5c39f9d8d2375c3df68251fa2249
SHA1d4ed365c44bec9246fc1a65a32a7791792647a10
SHA25620e3dc90a3e83b6202e2a7f4603b60e5e859639cb68693426c400b13aaeabd78
SHA512526e1bba30d03f1ac177c6ab7409187a730969c429cebef15da68ffcf44b3b93227781eebc827b2f7a0fa17c391e00a0e532263fd0167aeaeb0456f96cfe3ae4
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Filesize
9KB
MD5523d5c39f9d8d2375c3df68251fa2249
SHA1d4ed365c44bec9246fc1a65a32a7791792647a10
SHA25620e3dc90a3e83b6202e2a7f4603b60e5e859639cb68693426c400b13aaeabd78
SHA512526e1bba30d03f1ac177c6ab7409187a730969c429cebef15da68ffcf44b3b93227781eebc827b2f7a0fa17c391e00a0e532263fd0167aeaeb0456f96cfe3ae4
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Filesize
180KB
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Filesize
180KB
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Filesize
180KB
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Filesize
1.3MB
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Filesize
1.3MB
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Filesize
1.3MB
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Filesize
1.1MB
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Filesize
1.1MB
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Filesize
1.1MB
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Filesize
1.1MB
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Filesize
1.1MB
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Filesize
1.1MB
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Filesize
2.6MB
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Filesize
4KB
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Filesize
4KB
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Filesize
4KB
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Filesize
2.6MB
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Filesize
8KB
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Filesize
4KB
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Filesize
2.6MB
-
Filesize
4KB
-
Filesize
4KB
-
Filesize
4KB
-
Filesize
4KB
-
Filesize
4KB
-
Filesize
4KB
-
Filesize
4KB
-
Filesize
8KB
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Filesize
4KB
-
Filesize
4KB
-
Filesize
8KB
-
Filesize
4KB
-
Filesize
4KB
-
Filesize
4KB
-
Filesize
4KB
-
Filesize
168KB
-
Filesize
192KB
-
Filesize
192KB
-
Filesize
192KB
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Filesize
192KB