Static task
static1
Behavioral task
behavioral1
Sample
5b092b9eae4e57fab721a1e5b5a7cb92afe81fd1cc24d371cfa44c9cb0bb88fa.exe
Resource
win7-20220311-en
Behavioral task
behavioral2
Sample
5b092b9eae4e57fab721a1e5b5a7cb92afe81fd1cc24d371cfa44c9cb0bb88fa.exe
Resource
win10v2004-en-20220113
General
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Target
5b092b9eae4e57fab721a1e5b5a7cb92afe81fd1cc24d371cfa44c9cb0bb88fa
-
Size
593KB
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MD5
c43fe8c5ca00ddf821a56b2b6ccc8584
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SHA1
dc0424cf138ae4cd0d6c52d684fb1df3bd5af6f1
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SHA256
5b092b9eae4e57fab721a1e5b5a7cb92afe81fd1cc24d371cfa44c9cb0bb88fa
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SHA512
e29ebd1b452c1dae15ebb7b30f8955be74dec4d07c5a0f48dcf190f638a9bba79ca8fc02c9ad413c10af6081621576d3ebd1b4ffda2c9afb1b61a00cc064af86
Malware Config
Extracted
quasar
- encryption_key
- install_name
- log_directory
-
reconnect_delay
3000
- startup_key
- subdirectory
Signatures
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Contains code to disable Windows Defender 1 IoCs
A .NET executable tasked with disabling Windows Defender capabilities such as realtime monitoring, blocking at first seen, etc.
resource yara_rule sample disable_win_def -
Mercurialgrabber family
-
Quasar Payload 1 IoCs
resource yara_rule sample family_quasar -
Quasar family
Files
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5b092b9eae4e57fab721a1e5b5a7cb92afe81fd1cc24d371cfa44c9cb0bb88fa.exe windows x86
f34d5f2d4577ed6d9ceec516c1f5a744
Code Sign
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: 591KB - Virtual size: 590KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rsrc Size: 1KB - Virtual size: 1KB
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