Analysis
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max time kernel
112s -
max time network
155s -
platform
windows10-2004_x64 -
resource
win10v2004-20221111-en -
resource tags
arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system -
submitted
17-01-2023 14:37
Behavioral task
behavioral1
Sample
654a5edfc6d36d1d475c50a8c852f2fc.exe
Resource
win7-20220812-en
General
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Target
654a5edfc6d36d1d475c50a8c852f2fc.exe
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Size
2.7MB
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MD5
654a5edfc6d36d1d475c50a8c852f2fc
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SHA1
48c4da32b00cfcaed25486b9494ec515a1773b40
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SHA256
14df5d1e4b0be12a769c1c8ba950c4c2a192cc4f145dbe9decec59bf2706788b
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SHA512
9ade8e74584193ddc1f853201b87fb86ba160bf3cc197d17e51109d3b6b46ba1ea658b0a161b2fc321fa12b6ff5466747cc2c0ec71f9fabdacbb356f510752ab
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SSDEEP
49152:c0xDDQQGj33SmdY5sKfLeG2QRaLaOUaO1kcQu79tlTXCyza32ehyfTAm:c0RQQGj33SGmsKfLeG2QRaGOUaO1kcQ6
Malware Config
Extracted
quasar
1.4.0
Office04
161.97.148.204:1604
dabdfe29-55de-460b-9c36-9570f2b03a88
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encryption_key
4795EB97A05AE5F4E669D4B7FFF6608D94FC9027
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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 1 IoCs
Processes:
resource yara_rule behavioral2/memory/2632-132-0x0000000000D00000-0x0000000000FC0000-memory.dmp family_quasar -
Looks up external IP address via web service 2 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
Processes:
flow ioc 10 api.ipify.org 11 api.ipify.org -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
654a5edfc6d36d1d475c50a8c852f2fc.exedescription pid process Token: SeDebugPrivilege 2632 654a5edfc6d36d1d475c50a8c852f2fc.exe
Processes
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
Loading Replay Monitor...
Downloads
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memory/2632-132-0x0000000000D00000-0x0000000000FC0000-memory.dmpFilesize
2.8MB
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memory/2632-133-0x00007FFBADDB0000-0x00007FFBAE871000-memory.dmpFilesize
10.8MB
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memory/2632-134-0x000000001D690000-0x000000001D6E0000-memory.dmpFilesize
320KB
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memory/2632-135-0x000000001D7A0000-0x000000001D852000-memory.dmpFilesize
712KB
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memory/2632-136-0x00007FFBADDB0000-0x00007FFBAE871000-memory.dmpFilesize
10.8MB