Behavioral task
behavioral1
Sample
1792-77-0x0000000000400000-0x0000000000724000-memory.exe
Resource
win7-20230220-en
Behavioral task
behavioral2
Sample
1792-77-0x0000000000400000-0x0000000000724000-memory.exe
Resource
win10v2004-20230220-en
General
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Target
1792-77-0x0000000000400000-0x0000000000724000-memory.dmp
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Size
3.1MB
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MD5
46676daf837efe5311a2f51a70567285
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SHA1
83cb8bafe29869de89f34b3dc385b7bb0d79a332
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SHA256
283817c55521afd1f819213be756dd54d71a25e824c06d9a4365042c1d43af02
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SHA512
59d4c323bd433b70f2450d9c4ea54529fa01d01041b25081ad2ccba0bfc877e9890d69fbb3459f23bf0a80179ae215c10978335c46d6985971c0ccef359ff716
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SSDEEP
49152:rvGlL26AaNeWgPhlmVqvMQ7XSKJ19GSh3ar6joGd5HHTHHB72eh2NT:rvGL26AaNeWgPhlmVqkQ7XSKP9fhBJ
Malware Config
Extracted
quasar
1.4.1
Office04
microsoftbackup.duckdns.org:47600
b97303a2-a8f5-4170-91c1-56adceee5081
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encryption_key
A31E078A7CC45D3676D5AE3FB460C3E365219397
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install_name
Client.exe
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log_directory
Log
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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 1792-77-0x0000000000400000-0x0000000000724000-memory.dmp
Files
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1792-77-0x0000000000400000-0x0000000000724000-memory.dmp.exe windows x86
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
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