Behavioral task
behavioral1
Sample
BootstrapperV1.11.exe
Resource
win7-20240705-en
General
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Target
BootstrapperV1.11.exe
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Size
3.1MB
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MD5
f9da53f4f072c15dbf78b015a10575a2
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SHA1
96ea78662e9f44d6b4dcbbdc05bb4026188697ff
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SHA256
dd37983f893fe6aec0c2721e910896122de0549306fbc60277c3adf8a991bd0c
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SHA512
be39c735e3aa3a361b3ad2fd766182df0fa2dabbb50c3793f8d92d3c5ee1243d0111e2b40f47a2a68ab0a4e107bb50e411281b6d91fb4a17d0dfb8dd761dfa6f
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SSDEEP
49152:2vHY52fyaSZOrPWluWBuGG5g5hYPV8mC9QoGErqTHHB72eh2NT:2v452fyaSZOrPWluWBDG5g5hYPVBq
Malware Config
Extracted
quasar
1.4.1
Office04
10.2.0.2:4782
cc6f57e2-b224-4b7b-bfae-0b1e6f95f22f
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encryption_key
48E15FD52A3A24CE1F767DA2AD76CB0B862CC879
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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
Solara
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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 BootstrapperV1.11.exe
Files
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BootstrapperV1.11.exe.exe windows:4 windows x86 arch:x86
Password: yes
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