Analysis
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max time kernel
140s -
max time network
159s -
platform
windows10-2004_x64 -
resource
win10v2004-20240226-en -
resource tags
arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system -
submitted
09-04-2024 16:52
Behavioral task
behavioral1
Sample
xRmat80DlHcR.exe
Resource
win7-20240221-en
4 signatures
150 seconds
General
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Target
xRmat80DlHcR.exe
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Size
348KB
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MD5
32f3cadcabd40f0b821adba034ac8fb1
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SHA1
75ec24a7b088756120b9c380c6a13d88dbab5bd6
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SHA256
a681774e83e773eff9e6c4070a78b7fdb2839301ce1955cade51bd95af25abd3
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SHA512
a59aae78bf7729881925fdea3f0c2370a26f3bc3ea665df3eca1278c3599d37369aaf1e5c3bc5dcf08acb02a80ba1e1f4883b855ce934908a95d1d3d4c448c40
-
SSDEEP
6144:TzNHXf500Mb31d61sQqboCixEkZeg5kEvfmG:Hd50vd0IixDp1vfmG
Malware Config
Extracted
Family
quasar
Version
1.3.0.0
Botnet
Office04
C2
ppprosyl.con-ip.com:4001
Mutex
QSR_MUTEX_l1M93VuqIyiH8hEQ4I
Attributes
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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 1 IoCs
Processes:
resource yara_rule behavioral2/memory/1036-1-0x00000000001C0000-0x000000000021E000-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.
Processes:
flow ioc 44 ip-api.com -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
xRmat80DlHcR.exedescription pid process Token: SeDebugPrivilege 1036 xRmat80DlHcR.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\xRmat80DlHcR.exe"C:\Users\Admin\AppData\Local\Temp\xRmat80DlHcR.exe"1⤵
- Suspicious use of AdjustPrivilegeToken
PID:1036
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C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=4080 --field-trial-handle=2252,i,16504368816373493055,9578615028378602855,262144 --variations-seed-version /prefetch:81⤵PID:1712