Behavioral task
behavioral1
Sample
c5cb97fbe4243df1a99a9c82f44ad555f283fad9f4b15b791faebe5048c8fc99.exe
Resource
win7-20240704-en
General
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Target
c5cb97fbe4243df1a99a9c82f44ad555f283fad9f4b15b791faebe5048c8fc99.exe
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Size
3.1MB
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MD5
3e8b57c2be9df63483a368b71ccb938b
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SHA1
deb26a1b7f616c8d392ae55dd279140b034a4060
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SHA256
c5cb97fbe4243df1a99a9c82f44ad555f283fad9f4b15b791faebe5048c8fc99
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SHA512
c7d646c84531b6f182820a3cebc1779ef87bd0c92aeabccb922b685f040371d251b0da15fd5ecaa54dfe315560bba807a87aed2f44dbc0fce9703b5c0f4ee7e5
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SSDEEP
49152:Dvwt62XlaSFNWPjljiFa2RoUYIMIW+sWvoGdBNZTHHB72eh2NT:Dv862XlaSFNWPjljiFXRoUYIjW+s6
Malware Config
Extracted
quasar
1.4.1
Long Leg
twart.myfirewall.org:9792
0235e291-5d04-4fa3-932c-869aeec51499
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encryption_key
3145298725BA5E0DD56E87FFE3F8898EA81E6EDA
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install_name
workbook.exe
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log_directory
Logs
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reconnect_delay
6000
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startup_key
workbook
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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 c5cb97fbe4243df1a99a9c82f44ad555f283fad9f4b15b791faebe5048c8fc99.exe
Files
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c5cb97fbe4243df1a99a9c82f44ad555f283fad9f4b15b791faebe5048c8fc99.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