Behavioral task
behavioral1
Sample
wf_4780.exe
Resource
win7-20230220-en
General
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Target
wf_4780.exe
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Size
2.8MB
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MD5
ec4951e9f2b1945815954fec161cf57a
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SHA1
8e9e6857a0251a89b9c43b650344fb4f1648fa76
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SHA256
d969fc2e15743d6d44f477907368f2ebc96cefba20a232861fc7337bfa938d75
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SHA512
596e28d3529be33483589973ac34410f574cd888bda74e1e24afb2a2de107af4e788e2a27648da3c4fe4db4f49184244ce6ccf50f480c95c8d252d541587ad15
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SSDEEP
49152:y/Cbs48/vm/XpRDVHFZuAzG5LfvUza32ehyfT36:y/Ob8/vm/XnDVHbs
Malware Config
Extracted
quasar
1.4.0
X
45.141.27.208:4780
127.0.0.1:4780
d6e77ea9-bff7-4566-b4dd-f1be3c293c5e
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encryption_key
57F667877C1FCDA6663E2FDAC6FB8CFDE3CEA957
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install_name
winx.exe
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log_directory
Logs
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reconnect_delay
3000
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startup_key
winx
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subdirectory
sys
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 wf_4780.exe
Files
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wf_4780.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: 2.8MB - Virtual size: 2.8MB
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