Behavioral task
behavioral1
Sample
Client-built.exe
Resource
win7-20241010-en
General
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Target
Client-built.exe
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Size
3.1MB
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MD5
33bb52dbc13cd018fbe3737e8893e8a1
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SHA1
c5c01d977a107c50952dc0ae442e02d60e093cd5
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SHA256
e79f1f7a293b811cf4de8077a3988c22a726204abdfb2866ba67500e53442f82
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SHA512
12db6746fd74242cfd5c894b1ff4696b6504ee9af6afd1e0330f8f36228914fbe8b7d1aa4df2648fea37d2c879ab3e6972ae7fa2ea6120f8f0b29ea7132aee3b
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SSDEEP
49152:3vbI22SsaNYfdPBldt698dBcjHIGynXvoGdafTHHB72eh2NT:3vk22SsaNYfdPBldt6+dBcjHIGyn/
Malware Config
Extracted
quasar
1.4.1
Office04
Waix-40247.portmap.host:40247
9d84e220-c4b7-4f5c-b179-163c03154a8f
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encryption_key
B963B2000CDCB4E83B2966F1E1C703720463EE18
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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 Client-built.exe
Files
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Client-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: 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