Behavioral task
behavioral1
Sample
1aaf91f4a94f5cb96e94eb98c46c028c4994484ab06956d8cb0d37bcb9fdc106.exe
Resource
win7-20220901-en
General
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Target
1aaf91f4a94f5cb96e94eb98c46c028c4994484ab06956d8cb0d37bcb9fdc106.exe
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Size
502KB
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MD5
4560f14a33be8d42f2353cbe04a767df
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SHA1
9cf76bef38e97eecd168990bf7c993af95b1e31c
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SHA256
1aaf91f4a94f5cb96e94eb98c46c028c4994484ab06956d8cb0d37bcb9fdc106
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SHA512
692661e407b80f7dc6325b23e304a0c5be8ae8e62fd9364b478c882d282541b0d2d4612927770aab03b1f0d643a8716bc7f80bb1176793a2b71f9682be44f8e1
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SSDEEP
6144:pTEgdc0Y5XAGbgiIN2RSBbuS87XGCsWOkeSsoLmJcE6Nb8F9Q5OglOHocTR31:pTEgdfYVbgyaCoaBCqyK5iIcd1
Malware Config
Extracted
quasar
1.4.0
Office04
91.192.100.36:8084
9ce44fed-2881-4998-80a9-a8059346d6d7
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encryption_key
F2F10A25F4D0D0543F5520C8C8BAC500DA1B1AC1
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install_name
ServiceUpdate.exe
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log_directory
Logs
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reconnect_delay
3000
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startup_key
Mirsoft Update
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subdirectory
Mirsoft
Signatures
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Quasar family
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Quasar payload 1 IoCs
resource yara_rule sample family_quasar
Files
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1aaf91f4a94f5cb96e94eb98c46c028c4994484ab06956d8cb0d37bcb9fdc106.exe.exe 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: 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