Behavioral task
behavioral1
Sample
Payload.exe
Resource
win7-20240903-en
General
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Target
Payload.exe
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Size
3.1MB
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MD5
b0f4ccdba9627855a58b6f2f1673a3da
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SHA1
bb39bbd34084efdf4d0a994fba6419819d68c766
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SHA256
ef33af6a7f06d5dae8dd1da0412b795e1222bfd6ce447614c5cac912bcd3374d
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SHA512
7af9f641349e406b4d4079580247e72e566ee142028086225b0469ca545e064d365d4aad01d261711b7692a1c0130c7af9f875a56b026d39cb4ed86d2844c2b6
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SSDEEP
49152:WveI22SsaNYfdPBldt698dBcjHJLrhOmzmOoGdkTHHB72eh2NT:WvT22SsaNYfdPBldt6+dBcjHZrhp
Malware Config
Extracted
quasar
1.4.1
Office04
ukrainian.zapto.org:5552
951dc75d-80db-463e-bcd9-8d5e9db51950
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encryption_key
6DE9B098AFBC1DB6507E7CF9A6B32D44488DC3BF
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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 Payload.exe
Files
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Payload.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