Behavioral task
behavioral1
Sample
dwdwdwdw.exe
Resource
win7-20240704-en
Behavioral task
behavioral2
Sample
dwdwdwdw.exe
Resource
win10-20240404-en
Behavioral task
behavioral3
Sample
dwdwdwdw.exe
Resource
win10v2004-20240802-en
Behavioral task
behavioral4
Sample
dwdwdwdw.exe
Resource
win11-20240802-en
General
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Target
dwdwdwdw.exe
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Size
3.1MB
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MD5
aa54500044199f154468d955d20f55b3
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SHA1
8c538038df54cc9a4038a5f9dd6d8aced957d22f
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SHA256
134e8019332019800fa99d96404449fc0fa1953060bf95309cc0e3f3382c89dd
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SHA512
3a15aa037d70b21c4a8a88fd43a99cbab93b64fbb743d4dd552555dcb7d52baaa66632762e3f75a2808470ac950b3688f7e0c4642db200a56f98c16afb29fb74
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SSDEEP
49152:hHobtR1o2PmNXo7WCr5qait+XrYdyTHHB72eh2NT:hHmRvmNXo7WCr5qaia
Malware Config
Extracted
quasar
1.4.1
IrisLoader
147.185.221.18:42996
147.185.221.18:1770
9ddbf7fe-160a-423f-af8b-9cc2c3be4fa1
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encryption_key
9E968F05BD874BA1BE086FD1774A027473823F49
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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 dwdwdwdw.exe
Files
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dwdwdwdw.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