General
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Target
Client-built.exe
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Size
3.2MB
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MD5
0c1ec7f96d7075a604abe1f8b2725464
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SHA1
0cba36b0af29f8bd62cbd5734f59db80f1ad5b71
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SHA256
c1f6dc96c484bc241b7693aed4b5350ac4bb04c573bc61479849141b8707254c
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SHA512
84b84129ad26b1d0e3e3fc452797339b77ae7b2a6787fd7a5179b1d4849887c3f35ec0376ba127facf96c7ae828a2481f0eb813366327295050ec9a77d1f18fe
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SSDEEP
49152:mvIt62XlaSFNWPjljiFa2RoUYIYNxNESE+k/iQLoGdiOjPTHHB72eh2NT:mvE62XlaSFNWPjljiFXRoUYI6xtub
Malware Config
Extracted
quasar
1.4.1
Opera
6.tcp.eu.ngrok.io:19271
feb69ae7-695d-40ed-89a2-04ef8bd51b77
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encryption_key
BE406BCA39FA7E9CE29EAD78E1350B24413E24BF
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install_name
launcher.exe
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log_directory
Opera Logs
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reconnect_delay
3000
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startup_key
Opera Launcher
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subdirectory
Opera Software
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 Client-built.exe
Files
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Client-built.exe.exe windows 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: 117KB - Virtual size: 116KB
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