Behavioral task
behavioral1
Sample
Client-built.exe
Resource
win7-20230220-en
General
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Target
Client-built.exe
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Size
3.1MB
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MD5
c6d399a07c8fab0e46fd52404a2b1a09
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SHA1
1b12798f9d4ee123c82f52b200ae69ca6ac030c8
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SHA256
674a544366dcc6694c3cb88ca64f5f14e0355af1a0e4026021aad1b6c24ef362
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SHA512
a8585d8d0062540f8040cb52c4e3f59716b4d53cd04735a62d67e777f2be237b02402dd4f6fee1ebb549eab46c53d02432e9e13f748421ec65dc533ed8aa3f25
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SSDEEP
49152:avFt62XlaSFNWPjljiFa2RoUYI1VOueLruoGdjTTHHB72eh2NT:av362XlaSFNWPjljiFXRoUYI1VOueLy
Malware Config
Extracted
quasar
1.4.1
Office04
192.168.230.129:4782
2d8348e4-19a3-42e6-af3f-0b34f75b5e71
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encryption_key
ABAB95A4252906634E708CA4D154F69994B566C5
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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
Updater
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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 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