Behavioral task
behavioral1
Sample
bMO0.exe
Resource
win7-20230220-en
General
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Target
bMO0.exe
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Size
348KB
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MD5
a84e026ecca48ed97df640bb5b68e980
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SHA1
c7a8291fa7b7fd6ed7c633e95b6c48d646acfc6d
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SHA256
90c5baa1030eb91bb5f870eb75e48fe3187d41c938527695ae59bdc6fb6bd3ba
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SHA512
57c92c32df21dfc9346446ee4146da01e2fd52101f5fab1f24364addbc8bb3846b9f2fecc7b5f2c8fee5301be8b0af833a9d6b43f5ae73d55201167be4ef61c0
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SSDEEP
6144:P7qQ4i1FFiEKrmVxmg1TnE0DaGbdRly/9LxcGBFGbVzS:jpli8xx1Q9tLxdBERzS
Malware Config
Extracted
quasar
1.3.0.0
Office04
cryptersandtools.ddns.com.br:5552
QSR_MUTEX_PV7LCoiUmiwD1RBPCq
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encryption_key
Vw2ej5yeMh01Kv7liiDf
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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
Quasar Client Startup
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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 bMO0.exe
Files
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bMO0.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: 345KB - Virtual size: 344KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rsrc Size: 2KB - 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