Behavioral task
behavioral1
Sample
f57957e46a34721d4e1ac24e7a688ef5ac468e670da8aeed3df5588cd2ff9b2eN.exe
Resource
win7-20240903-en
General
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Target
f57957e46a34721d4e1ac24e7a688ef5ac468e670da8aeed3df5588cd2ff9b2eN.exe
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Size
3.1MB
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MD5
72194b4da4b58d78e3c766af20a0b5a0
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SHA1
c7e14ffaa30aa186babbfab5de102efd4a676a21
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SHA256
f57957e46a34721d4e1ac24e7a688ef5ac468e670da8aeed3df5588cd2ff9b2e
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SHA512
6f70cd60703420cafd1fa8d3197dd7ee382d94f991b141ae30042ba70afc15a97fb522797625074449c1648f2d5532cc84023c088e5fd17b53a8059769486d71
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SSDEEP
49152:rvyI22SsaNYfdPBldt698dBcjH2QRJ6WbR3LoGdgcTHHB72eh2NT:rvf22SsaNYfdPBldt6+dBcjH2QRJ6QQ
Malware Config
Extracted
quasar
1.4.1
Office04
50.114.115.135:4782
1e0c60c5-a4af-4c26-a7f1-5ee890a8321a
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encryption_key
26CBB40F2457EA2E776A5BB10B783B74E5FD47D3
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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 f57957e46a34721d4e1ac24e7a688ef5ac468e670da8aeed3df5588cd2ff9b2eN.exe
Files
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f57957e46a34721d4e1ac24e7a688ef5ac468e670da8aeed3df5588cd2ff9b2eN.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: 3.1MB - Virtual size: 3.1MB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rsrc Size: 3KB - 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