Analysis
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max time kernel
126s -
max time network
136s -
platform
windows7_x64 -
resource
win7-20240903-en -
resource tags
arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system -
submitted
13-02-2025 04:01
Behavioral task
behavioral1
Sample
539da6b5b3b6974ab6003783ec1bee822e90f4732661818400239ffda7c62f91.exe
Resource
win7-20240903-en
General
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Target
539da6b5b3b6974ab6003783ec1bee822e90f4732661818400239ffda7c62f91.exe
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Size
348KB
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MD5
43d1f9e4fd0356376bda350486b75335
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SHA1
4f07cfcbfd3071d55f9098ba8905f97b2eb23b01
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SHA256
539da6b5b3b6974ab6003783ec1bee822e90f4732661818400239ffda7c62f91
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SHA512
22d0c8fb67af6360bc44ae740638f120c8eb02df1a831a541c411509b12b2e5af2dfcb8013e06b92540ddaa5e901f92489e504ef98f966a226de18de11addb13
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SSDEEP
6144:d2NHXf500MwdHFPmtH42bp5EGISxBDz4myHfi:kd50GHFPHU5ESxBDcmy/i
Malware Config
Extracted
quasar
1.3.0.0
Office04
217.195.197.192:1604
iG5Qu7mo7JWZRWS2JY
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encryption_key
f8ffk4jC3Ygnfr2GgGiB
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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 behavioral1/memory/2500-1-0x0000000001260000-0x00000000012BE000-memory.dmp family_quasar -
Looks up external IP address via web service 1 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
flow ioc 2 ip-api.com -
System Location Discovery: System Language Discovery 1 TTPs 1 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 539da6b5b3b6974ab6003783ec1bee822e90f4732661818400239ffda7c62f91.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 2500 539da6b5b3b6974ab6003783ec1bee822e90f4732661818400239ffda7c62f91.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 2500 539da6b5b3b6974ab6003783ec1bee822e90f4732661818400239ffda7c62f91.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\539da6b5b3b6974ab6003783ec1bee822e90f4732661818400239ffda7c62f91.exe"C:\Users\Admin\AppData\Local\Temp\539da6b5b3b6974ab6003783ec1bee822e90f4732661818400239ffda7c62f91.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:2500