Behavioral task
behavioral1
Sample
built.exe
Resource
win7-20240903-en
General
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Target
built.exe
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Size
348KB
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MD5
fb1057eee229c44ceea060397b9f8ff1
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SHA1
0528f64effa73492a54a97535ee1a4e65d0ad023
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SHA256
97a83514d72fdb32ff49a7c8526c4a180a5affefc1af9f2abd9c799aa3ac0548
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SHA512
899c3e467379c04e32e4ca9868640c3e4a282c40780ebb5be63677d4c2155e5970e37f6e490e45796b7964a8736d24aa50936861236b29e7dfc71b9cc43dd892
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SSDEEP
6144:1mSiPqU23zkkEUcadASlBx+bS7VqlvfbbOA30DbJi:coU2fIS11EtbOu0DbJi
Malware Config
Extracted
quasar
1.3.0.0
Test
100.115.92.196:8080
100.115.92.196:22
100.115.92.196:3389
QSR_MUTEX_B6Q8duJmC3tqQvImXE
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encryption_key
Fv3xsfvJChgh6yTF3T1x
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install_name
win.exe
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log_directory
Logs
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reconnect_delay
3000
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startup_key
Windows Runtime
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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 built.exe
Files
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built.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: 344KB - 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