Behavioral task
behavioral1
Sample
jerniuiopu.exe
Resource
win7-20240708-en
General
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Target
jerniuiopu.exe
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Size
288KB
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MD5
d0d7ce7681200387de77c7ab2e2841cd
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SHA1
8b6c4315e260954b6c33f450ad3baa9f79fe72e2
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SHA256
b64b141eb3b3fa67f6605eb99b0e6f78eb5df7d483a2a0889821ccfac71a7a96
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SHA512
bc3cfac3450cbc17ce8c9758f10c7e4034764f40a6797edd4a8eb6e95d6db9c5f46a46487a6e483ef0eed23243e9f92c0ea391a0416ebbc6854e2b9914ad9788
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SSDEEP
6144:w7zO0LSclT6FOwEP5Kq+SMv0VGb7bDcllbk9n:OlJtTF9zVGkllbkh
Malware Config
Extracted
quasar
1.4.0.0
Office
82.117.243.110:5173
yfsS9ida0wX8mgpdJC
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encryption_key
KDNBgA8jiBeGX1rj1dDt
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install_name
csrss.exe
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log_directory
Logs
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reconnect_delay
3000
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startup_key
NET framework
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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 jerniuiopu.exe
Files
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jerniuiopu.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: 285KB - Virtual size: 285KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rsrc Size: 2KB - 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