Behavioral task
behavioral1
Sample
7dfbc57a805e7eaa34652af8d62b3b5673518834c6cd04d9e92ab8240daffbd2.exe
Resource
win7-20230831-en
General
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Target
7dfbc57a805e7eaa34652af8d62b3b5673518834c6cd04d9e92ab8240daffbd2
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Size
3.1MB
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MD5
d8dfca8f9764f8e3c11ae8c97de406e1
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SHA1
dcff579895740aa0be13a5b168e0103d34fde86c
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SHA256
7dfbc57a805e7eaa34652af8d62b3b5673518834c6cd04d9e92ab8240daffbd2
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SHA512
55dc4190f7df08a3bcdad59c7c90ffa35943a1786c315cfd919f19a8051b9b0fe69d32532e176d81723c2578e1b17321f86ef913cc31f1309cc40a266f79d5c8
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SSDEEP
49152:Zvft62XlaSFNWPjljiFa2RoUYI/4mImzbJoGdeEuJTHHB72eh2NT:Zv162XlaSFNWPjljiFXRoUYI/4mTuR
Malware Config
Extracted
quasar
1.4.1
Office04
127.0.0.1:7777
f9d96e52-a318-4957-8a2a-f5c28dc30d4d
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encryption_key
701AC1B06521646F02DA408E467374203AC09A44
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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 7dfbc57a805e7eaa34652af8d62b3b5673518834c6cd04d9e92ab8240daffbd2
Files
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7dfbc57a805e7eaa34652af8d62b3b5673518834c6cd04d9e92ab8240daffbd2.exe windows:4 windows 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