General
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Target
jjj.exe
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Size
3.1MB
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MD5
46a0117d88b86c9a22fbf95eca7beeda
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SHA1
4d9b07e1005de0c1abf8986db74fcb52c65aabad
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SHA256
ceab150dd90624e2ed3d43dfec159fa42c0e1edd0fe32cd14f4e90e74377e254
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SHA512
81027befa7a2b44e1282c8a073ff22da943c1c4797db8fa3999d847c5247d1e4548f14efebaff60f30ab3e7f53782e4b13e4135dfb925fdc1c98a3ec413ef901
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SSDEEP
49152:KvEt62XlaSFNWPjljiFa2RoUYIwCI1JLLoGdqTHHB72eh2NT:KvY62XlaSFNWPjljiFXRoUYIwC0
Malware Config
Extracted
quasar
1.4.1
Office04
192.168.0.58:4782
c83167dc-52af-41b4-a8e9-67cd1ff75afc
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encryption_key
D761E0DD225D1BC0781EBC9AEB6C3EAA8989E228
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install_name
Java.exe
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log_directory
Logs
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reconnect_delay
3000
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startup_key
Java 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 jjj.exe
Files
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jjj.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