Behavioral task
behavioral1
Sample
B.exe
Resource
win7-20240903-en
General
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Target
B.exe
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Size
348KB
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MD5
a7062afc04eb9faba65626cc931c8a02
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SHA1
6e9e65253cb693a786b43ae863c8294e09af189b
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SHA256
04819d6129cf70696bb6c402127ea66208dbf2d6996ab9faca205b0ecfe33ca7
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SHA512
17135b9f02f8cc5fe281c77ed618461cce97acf9aa6aa9741ed0e9bee61e01343830d86c498892855e7000c93d1997a8ebc3f62cbb655ba79e672344587b5b36
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SSDEEP
6144:wmqQ4i1FFiEKkWAOrEdbJpjYYTLQn6LK2EM8O:Pplikm+UYPQn6LKnM8O
Malware Config
Extracted
quasar
1.3.0.0
Test
4.tcp.eu.ngrok.io:8080
4.tcp.eu.ngrok.io:16210
QSR_MUTEX_Nf297179RoX9PEGnGN
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encryption_key
6GgXmwACZXvigXZxSjrr
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install_name
Client.exe
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log_directory
Logs
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reconnect_delay
3000
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startup_key
Quasar Client Startup
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subdirectory
SubDir
Signatures
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Quasar family
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Quasar payload 1 IoCs
resource yara_rule sample family_quasar -
Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
resource B.exe
Files
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B.exe.exe windows:4 windows x86 arch:x86
f34d5f2d4577ed6d9ceec516c1f5a744
Headers
DLL Characteristics
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_32BIT_MACHINE
Imports
mscoree
_CorExeMain
Sections
.text Size: 345KB - Virtual size: 344KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rsrc Size: 2KB - Virtual size: 2KB
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