Behavioral task
behavioral1
Sample
4bfb85af6e2eef6cd57d28ab22cc963ab27af48c4b8e55553f2cd11ef735bdc9.exe
Resource
win7-20240903-en
General
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Target
4bfb85af6e2eef6cd57d28ab22cc963ab27af48c4b8e55553f2cd11ef735bdc9
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Size
502KB
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MD5
4a1a83a32839b83f5b740f3880b02f96
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SHA1
889eade4f72e5a7f59b271c834966c63fae88eea
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SHA256
4bfb85af6e2eef6cd57d28ab22cc963ab27af48c4b8e55553f2cd11ef735bdc9
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SHA512
8545d981ce9f07a639abc9f8ea87d13d8a2547fc1f674cf5f85894465bc78c9ad2a6fd521f0d8c876006a89719ed4a4648c99985c3b54b7ee420c773f927fdea
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SSDEEP
6144:pTEgdc0YtX7IxUpGREW+ngEymrd8Mi5Etqd+yw4UUcEKOb8F9sbB0Uac0cTR3K:pTEgdfY2xUbgEyCT4wywKapz00cdK
Malware Config
Extracted
quasar
1.4.0
Office64
87.121.52.241:4000
398f3d5d-fcb0-4abf-8107-9e4548750c76
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encryption_key
1868814443133CA4A17ED63DA213FAB2B29A7853
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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
Cryptic0 Client
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subdirectory
SubDir
Signatures
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Quasar family
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Quasar payload 1 IoCs
Processes:
resource yara_rule sample family_quasar -
Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
Processes:
resource 4bfb85af6e2eef6cd57d28ab22cc963ab27af48c4b8e55553f2cd11ef735bdc9
Files
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4bfb85af6e2eef6cd57d28ab22cc963ab27af48c4b8e55553f2cd11ef735bdc9.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: 498KB - Virtual size: 497KB
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