Behavioral task
behavioral1
Sample
Client.exe
Resource
win7-20240319-en
General
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Target
Client.exe
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Size
3.1MB
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MD5
8eec6e82f824e964f6a6ae25f97c2b26
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SHA1
dd746bd25682356e5a73d0f447e3d0de6907d33d
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SHA256
78e61085e07c0c08e8127b12da6c923a5d2e42929d86d84c82826ea43e2a1128
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SHA512
f3d6b88f449ff1532b0177f1cd5e940163101a834f8faba1cd4131c72b56c2c75b98aac6568addc933852e0e59decdf999266dc15b86a330daf74acdeb53774d
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SSDEEP
49152:yvht62XlaSFNWPjljiFa2RoUYIU+qXBxHeoGdzTHHB72eh2NT:yvL62XlaSFNWPjljiFXRoUYIJqK
Malware Config
Extracted
quasar
1.4.1
Slave
140.238.91.110:45359
f8ed2643-0827-4252-bfbe-ca79f67643cb
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encryption_key
52BB87E2CC96F5243DED8FFD41978ED5C07DF11C
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install_name
Steam.exe
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log_directory
Error Logs
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reconnect_delay
3000
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startup_key
svchost
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subdirectory
SubDir
Signatures
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Quasar family
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Quasar payload 1 IoCs
Processes:
resource yara_rule sample family_quasar -
Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
Processes:
resource Client.exe
Files
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Client.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