General
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Target
TPM tools.exe
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Size
3.1MB
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MD5
96b2bd92ca8b0905d6808651598b9ba2
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SHA1
6829193429761255b2c56b25b0a25dc641310b11
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SHA256
101e3d6e8d2128e72df1070b04033c2ffed72f0464dd3f6e7575f7ad966e0aa6
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SHA512
7fdc86267110bab8ff592b48735cc7452266fa9b9fcc380e0993c34f8435b03773cd7ee548a7d4461770691bd5135d6713a60bb2278c4c55ec085718d7b7a291
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SSDEEP
49152:Kvht62XlaSFNWPjljiFa2RoUYI7CU1JkLoGdUTHHB72eh2NT:KvL62XlaSFNWPjljiFXRoUYI7CF
Malware Config
Extracted
quasar
1.4.1
Office04
192.168.1.117:4782
a7074e5e-ed13-4240-b2bd-3139cf111cf4
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encryption_key
B1A93851F2B7AB11E1C412D6A94DD30CC9FC53BD
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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
java update
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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 TPM tools.exe
Files
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TPM tools.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