Overview
overview
10Static
static
10Malcat_v0....en.exe
windows7-x64
7Malcat_v0....en.exe
windows10-2004-x64
7out.exe
windows7-x64
out.exe
windows10-2004-x64
Malcat_v0....er.exe
windows7-x64
10Malcat_v0....er.exe
windows10-2004-x64
10Malcat_v0....64.zip
windows7-x64
1Malcat_v0....64.zip
windows10-2004-x64
1Behavioral task
behavioral1
Sample
Malcat_v0.9.1_Win_&_Ubuntu/Malcat_Keygen.exe
Resource
win7-20230712-en
Behavioral task
behavioral2
Sample
Malcat_v0.9.1_Win_&_Ubuntu/Malcat_Keygen.exe
Resource
win10v2004-20230831-en
Behavioral task
behavioral3
Sample
out.exe
Resource
win7-20230831-en
Behavioral task
behavioral4
Sample
out.exe
Resource
win10v2004-20230831-en
Behavioral task
behavioral5
Sample
Malcat_v0.9.1_Win_&_Ubuntu/cracker.exe
Resource
win7-20230712-en
Behavioral task
behavioral6
Sample
Malcat_v0.9.1_Win_&_Ubuntu/cracker.exe
Resource
win10v2004-20230831-en
Behavioral task
behavioral7
Sample
Malcat_v0.9.1_Win_&_Ubuntu/malcat_win64.zip
Resource
win7-20230831-en
Behavioral task
behavioral8
Sample
Malcat_v0.9.1_Win_&_Ubuntu/malcat_win64.zip
Resource
win10v2004-20230831-en
General
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Target
Malcat_v0.9.2_Win_&_Ubuntu (Malcat (0.9.2-2023) binary analysis software Windows & Ubuntu).zip
-
Size
104.1MB
-
MD5
b2f05e49e64afabebe2b350c2b6409aa
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SHA1
b8c2aed95263fcccd590caa50526e9127a6d52f9
-
SHA256
e667ca84d761eb07f72f4cb423a3ab9e8b55e958288be848d385b27621195949
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SHA512
c7243d1ab6b1ce3e2d91c775fce8d7e9b0cd7a1bbe87fe6cd35cff1ebf2dd3302467093898208e311eadac039d7f2f92049499b1c74a5c38c29fbedfb2949d32
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SSDEEP
1572864:gb6Ca88xyH/NOeh8KivL0eN/uu7r69LpPp075sJbz2Dc48ykiB9jh94WBIy/+7QO:s6BFw/N9+bL79Gpm7cP2DDxP9NP8ZXpx
Malware Config
Extracted
asyncrat
Default
127.0.0.1:6606
127.0.0.1:7707
127.0.0.1:8808
https://api.telegram.org/bot5344934242:AAF3rLeFDCGd-IVKJG_PU99MSQjdKyNgeR0/sendMessage?chat_id=1619136628
AsyncMutex_6SI8OkPnk
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delay
3
-
install
false
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install_folder
%AppData%
Signatures
-
Async RAT payload 1 IoCs
resource yara_rule static1/unpack001/Malcat_v0.9.1_Win_&_Ubuntu/cracker.exe asyncrat -
Asyncrat family
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StormKitty payload 1 IoCs
resource yara_rule static1/unpack001/Malcat_v0.9.1_Win_&_Ubuntu/cracker.exe family_stormkitty -
Stormkitty family
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resource yara_rule static1/unpack001/Malcat_v0.9.1_Win_&_Ubuntu/Malcat_Keygen.exe upx -
Unsigned PE 3 IoCs
Checks for missing Authenticode signature.
resource unpack001/Malcat_v0.9.1_Win_&_Ubuntu/Malcat_Keygen.exe unpack002/out.upx unpack001/Malcat_v0.9.1_Win_&_Ubuntu/cracker.exe
Files
-
Malcat_v0.9.2_Win_&_Ubuntu (Malcat (0.9.2-2023) binary analysis software Windows & Ubuntu).zip.zip
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Malcat_v0.9.1_Win_&_Ubuntu/Malcat_Keygen.exe.exe windows x64
Headers
DLL Characteristics
IMAGE_DLLCHARACTERISTICS_HIGH_ENTROPY_VA
IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_NX_COMPAT
IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE
File Characteristics
IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_LARGE_ADDRESS_AWARE
Sections
UPX0 Size: - Virtual size: 220KB
IMAGE_SCN_CNT_UNINITIALIZED_DATA
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
UPX1 Size: 12KB - Virtual size: 16KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.rsrc Size: 2KB - Virtual size: 4KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
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out.upx.exe windows x64
Headers
DLL Characteristics
IMAGE_DLLCHARACTERISTICS_HIGH_ENTROPY_VA
IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_NX_COMPAT
IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE
File Characteristics
IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_LARGE_ADDRESS_AWARE
Sections
.text Size: 7KB - Virtual size: 6KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rdata Size: 7KB - Virtual size: 7KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.data Size: 512B - Virtual size: 1KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.pdata Size: 1024B - Virtual size: 684B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.rsrc Size: 194KB - Virtual size: 194KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.reloc Size: 512B - Virtual size: 88B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ
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Malcat_v0.9.1_Win_&_Ubuntu/anonymousdevilsec.txt
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Malcat_v0.9.1_Win_&_Ubuntu/cracker.exe.exe windows x86
f34d5f2d4577ed6d9ceec516c1f5a744
Headers
DLL Characteristics
IMAGE_DLLCHARACTERISTICS_HIGH_ENTROPY_VA
IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_NX_COMPAT
IMAGE_DLLCHARACTERISTICS_NO_SEH
IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE
File Characteristics
IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_LARGE_ADDRESS_AWARE
Imports
mscoree
_CorExeMain
Sections
.text Size: 167KB - Virtual size: 167KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rsrc Size: 1KB - Virtual size: 1KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.reloc Size: 512B - Virtual size: 12B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ
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Malcat_v0.9.1_Win_&_Ubuntu/malcat_ubuntu22.zip.zip
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Malcat_v0.9.1_Win_&_Ubuntu/malcat_win64.zip.zip