Behavioral task
behavioral1
Sample
5eb26eb056480f6083f7565a572b2dd6ebc992a99d8220dbf0d736c7b4a12077.exe
Resource
win7-20240708-en
General
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Target
5eb26eb056480f6083f7565a572b2dd6ebc992a99d8220dbf0d736c7b4a12077.exe
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Size
348KB
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MD5
fd8ca662ec7eebf8c0433dd7a7aec732
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SHA1
a8c0a6e632000dc0ff0bc31643b26ed52616336a
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SHA256
5eb26eb056480f6083f7565a572b2dd6ebc992a99d8220dbf0d736c7b4a12077
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SHA512
9f13e18d77404d950794c3b3407e59aff92fa6647f7a9d59e18916fa7fc90783a1b0c81c46fd9baac989431712f8696bf22e3e921fd8942e8cf3a0946bc1e08b
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SSDEEP
6144:uzn4ccY0FdYnUGvjQxw3I0TbQzQOXG4yfAaM9oNgfdgMuZ:QSY0oUGv/G44yfzMKgfOMuZ
Malware Config
Extracted
quasar
1.3.0.0
CoDer
skypeprocesshost.ddns.com.br:4782
workwinrarhost.ddns.com.br:4782
office.minhaempresa.tv:4782
authy.winconnection.net:4782
QSR_MUTEX_waaDBjBTwvE4jQF1CY
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encryption_key
syxdBvDrFCjAln3AxGRZ
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install_name
0ffice.exe
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log_directory
Logs
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reconnect_delay
3000
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startup_key
msg
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subdirectory
Office
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 5eb26eb056480f6083f7565a572b2dd6ebc992a99d8220dbf0d736c7b4a12077.exe
Files
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5eb26eb056480f6083f7565a572b2dd6ebc992a99d8220dbf0d736c7b4a12077.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: 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