Behavioral task
behavioral1
Sample
client2.exe
Resource
win7-20240220-en
General
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Target
client2.exe
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Size
3.1MB
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MD5
bf2ca3b55e94adb3f3bc2f88599fafb9
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SHA1
0b350cb542c831b5e93aaaffdf40ad9423a1f7b5
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SHA256
338ef3e915cb19fb76ee6480a534e32053ef189057300c826f133cfd924de34f
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SHA512
be3bc6a111136a4b5e8cac9fe62c2e0f61628846f6804f704d4d946a1c4c1dc44dd75729406fedf1a42b4e8f454bab5b6a2170c0e6b8f38f17755629616ceabe
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SSDEEP
49152:ev0t62XlaSFNWPjljiFa2RoUYIZ814wDMR3aoGdZdTHHB72eh2NT:evo62XlaSFNWPjljiFXRoUYIZI42J
Malware Config
Extracted
quasar
1.4.1
Office04
212.192.31.211:4782
8cff6bf4-0204-41b6-9e13-a2edafea559f
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encryption_key
8297B625B7067758953DBD6939F74AE8EE2234C3
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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
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 client2.exe
Files
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client2.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