Analysis
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max time kernel
87s -
max time network
154s -
platform
windows7_x64 -
resource
win7-20220812-en -
resource tags
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submitted
14-10-2022 23:47
General
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Target
SecuriteInfo.com.Trojan.PWS.Steam.33549.12619.23276.exe
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Size
934KB
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MD5
63719163fb47ba4668aa8b7677c86702
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SHA1
aee9cd41b3aa4cf05f70f8b54b90cd29ac2e3af7
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SHA256
40318ceb6df45ff27cc97a5e63ef066c297cb91d3c9d9c6ed69c3bfb7a7052ac
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SHA512
447d0c0c71dc49856bdb849677fc4bc448f21260f0cb269945086b8204800d8ec84c43778770ef7bcaf95f4319917f7616f10d9739158ed32793155fa8a4d6b1
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SSDEEP
12288:xf7HuMUjpIA7DM8deM2Nec4e/Yq/Keas1/gR+3jLJ0BINZ:hH3cpnvJe/l/Taw/goLiB6
Malware Config
Extracted
nanocore
1.2.2.0
brightnano1.ddns.net:1989
171.22.30.97:1989
fba1bbc6-2cc8-4c94-b6c0-dda5a12fd7fe
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activate_away_mode
true
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backup_connection_host
171.22.30.97
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backup_dns_server
8.8.4.4
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buffer_size
65535
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build_time
2022-06-10T14:34:05.030247036Z
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bypass_user_account_control
false
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bypass_user_account_control_data
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clear_access_control
true
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clear_zone_identifier
false
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connect_delay
4000
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connection_port
1989
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default_group
Default
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enable_debug_mode
true
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gc_threshold
1.048576e+07
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keep_alive_timeout
30000
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keyboard_logging
false
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lan_timeout
2500
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max_packet_size
1.048576e+07
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mutex
fba1bbc6-2cc8-4c94-b6c0-dda5a12fd7fe
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mutex_timeout
5000
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prevent_system_sleep
false
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primary_connection_host
brightnano1.ddns.net
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primary_dns_server
8.8.8.8
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request_elevation
true
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restart_delay
5000
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run_delay
0
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run_on_startup
false
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set_critical_process
true
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timeout_interval
5000
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use_custom_dns_server
false
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version
1.2.2.0
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wan_timeout
8000
Signatures
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NanoCore
NanoCore is a remote access tool (RAT) with a variety of capabilities.
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Adds Run key to start application 2 TTPs 1 IoCs
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Checks whether UAC is enabled 1 TTPs 1 IoCs
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Suspicious use of SetThreadContext 1 IoCs
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Drops file in Program Files directory 2 IoCs
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Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Creates scheduled task(s) 1 TTPs 3 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
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Suspicious behavior: EnumeratesProcesses 4 IoCs
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Suspicious behavior: GetForegroundWindowSpam 1 IoCs
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Suspicious use of AdjustPrivilegeToken 1 IoCs
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Suspicious use of WriteProcessMemory 21 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Trojan.PWS.Steam.33549.12619.23276.exe"C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Trojan.PWS.Steam.33549.12619.23276.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\jcCEfuc" /XML "C:\Users\Admin\AppData\Local\Temp\tmp8B8.tmp"2⤵
- Creates scheduled task(s)
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C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Trojan.PWS.Steam.33549.12619.23276.exe"{path}"2⤵
- Adds Run key to start application
- Checks whether UAC is enabled
- Drops file in Program Files directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\schtasks.exe"schtasks.exe" /create /f /tn "UDP Service" /xml "C:\Users\Admin\AppData\Local\Temp\tmpE25.tmp"3⤵
- Creates scheduled task(s)
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C:\Windows\SysWOW64\schtasks.exe"schtasks.exe" /create /f /tn "UDP Service Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmpED2.tmp"3⤵
- Creates scheduled task(s)
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
1KB
MD52a5690b616329ba766dcc009578d2388
SHA15ce61c49d9c9ac678991a4b76a9c50466060b69b
SHA2563c543fc4614fde4d80a709eee0459fdf71af5c8708cc2a6ef5b94c58c3fe82cb
SHA512872749d491731d71b0f51e2e21108214ee641cce732f44fb4e3b61faca4a7b9c38650cd0d8bb175ef72a8dd355b7ba247514aa470978f34155bcc58d77bdde86
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Filesize
1KB
MD54da23c94bdd75b22b4d9266ef9601a9c
SHA1f49e75355030949854d6bd12a7043b6d708d3300
SHA2560da10dcefbf768243c4884737a387a55b8b8815529ed1599448dfc06bceea280
SHA512556ce3ecb4524528e4ea898ad4c8794a08c5062b480105a2a7dd06d02735e2379ac8bd35b03465b1b735fc8953db36dfb33af844acac7ec71be0abb9ea29846c
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Filesize
1KB
MD50a24db62cb5b84309c4803346caaa25d
SHA167660778f61bb44168c33ed3fe56ed86cf9583e8
SHA25638d38647af394a04ee6add9f05c43244f04e64a6b96257f4b241a5038efa82df
SHA512d25d9df063f44595d5e0bf890755bd387655131ff369eeedf3d11ffcc6202ca4455bbb33a8a926dd06839cbd1ddec3d06809b3c66a82c6518aa14beaa469a548
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Filesize
224KB
-
Filesize
56KB
-
Filesize
80KB
-
Filesize
184KB
-
Filesize
224KB
-
Filesize
56KB
-
Filesize
224KB
-
Filesize
224KB
-
Filesize
224KB
-
-
Filesize
224KB
-
Filesize
80KB
-
Filesize
224KB
-
Filesize
64KB
-
Filesize
80KB
-
Filesize
48KB
-
Filesize
56KB
-
Filesize
40KB
-
Filesize
120KB
-
Filesize
40KB
-
Filesize
72KB
-
Filesize
104KB
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Filesize
72KB
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-
Filesize
232KB
-
Filesize
8KB
-
Filesize
128KB
-
Filesize
68KB
-
Filesize
960KB
-
Filesize
68KB
-
Filesize
552KB
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