Analysis
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max time kernel
127s -
max time network
129s -
platform
windows7_x64 -
resource
win7-20240215-en -
resource tags
arch:x64arch:x86image:win7-20240215-enlocale:en-usos:windows7-x64system -
submitted
10-04-2024 02:50
Behavioral task
behavioral1
Sample
a681774e83e773eff9e6c4070a78b7fdb2839301ce1955cade51bd95af25abd3.exe
Resource
win7-20240215-en
General
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Target
a681774e83e773eff9e6c4070a78b7fdb2839301ce1955cade51bd95af25abd3.exe
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Size
348KB
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MD5
32f3cadcabd40f0b821adba034ac8fb1
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SHA1
75ec24a7b088756120b9c380c6a13d88dbab5bd6
-
SHA256
a681774e83e773eff9e6c4070a78b7fdb2839301ce1955cade51bd95af25abd3
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SHA512
a59aae78bf7729881925fdea3f0c2370a26f3bc3ea665df3eca1278c3599d37369aaf1e5c3bc5dcf08acb02a80ba1e1f4883b855ce934908a95d1d3d4c448c40
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SSDEEP
6144:TzNHXf500Mb31d61sQqboCixEkZeg5kEvfmG:Hd50vd0IixDp1vfmG
Malware Config
Extracted
quasar
1.3.0.0
Office04
ppprosyl.con-ip.com:4001
QSR_MUTEX_l1M93VuqIyiH8hEQ4I
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encryption_key
ucnCWAxHFqrqDWqAvywj
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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 payload 2 IoCs
Processes:
resource yara_rule behavioral1/memory/1764-0-0x0000000001190000-0x00000000011EE000-memory.dmp family_quasar behavioral1/memory/1764-2-0x00000000010C0000-0x0000000001100000-memory.dmp family_quasar -
Detects Windows executables referencing non-Windows User-Agents 1 IoCs
Processes:
resource yara_rule behavioral1/memory/1764-0-0x0000000001190000-0x00000000011EE000-memory.dmp INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA -
Detects executables containing common artifacts observed in infostealers 1 IoCs
Processes:
resource yara_rule behavioral1/memory/1764-0-0x0000000001190000-0x00000000011EE000-memory.dmp INDICATOR_SUSPICIOUS_GENInfoStealer -
Looks up external IP address via web service 1 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
Processes:
flow ioc 2 ip-api.com -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
a681774e83e773eff9e6c4070a78b7fdb2839301ce1955cade51bd95af25abd3.exedescription pid process Token: SeDebugPrivilege 1764 a681774e83e773eff9e6c4070a78b7fdb2839301ce1955cade51bd95af25abd3.exe