Analysis
- max time kernel
195s - max time network
205s - platform
windows10-2004_x64 - resource
win10v2004-20240226-en - resource tags
arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system - submitted
15/03/2024, 22:22
Static task
static1
1 signatures
Behavioral task
behavioral1
Sample
cc67adca18aa492545571dd5c02ec4e9.exe
Resource
win7-20240221-en
9 signatures
150 seconds
General
- Target cc67adca18aa492545571dd5c02ec4e9.exe
- Size 613KB
- Sample240315-2ablwscd8s
- SHA256 28184c88216897491c60fc75dbd6bd99a2f436a5cf8c7f4322f10d2245b4dba5
- MD5 cc67adca18aa492545571dd5c02ec4e9
- SHA1 9ce92445b1f619b3b1c0df31eb2c5e6321f90a16
- SHA512 f29b3ba70740a91ea130c1e472b4e0e5af9120ecfbf4b80f4b5140871d15213a1035967ac9ac677e0be2029074c01c62c06a82b516fab85056bb51622736cd6f
- SSDEEP 12288:1hyQhcrYiNgKHUB9FS5j/DShuhjWzJgGs:1wYEnHUNSFD2ijiJgG
- MD5 SHA1 SHA512 SSDEEP
Malware Config
Extracted
Family
-
nanocore
Version
-
1.2.2.0
C2
-
bohemiabenz.ddns.net:6060
-
127.0.0.1:6060
Mutex
-
f21340ca-f3ab-4839-83a8-c9e6c48024b3
Attributes
-
activate_away_mode
true
-
backup_connection_host
127.0.0.1
-
backup_dns_server
37.235.1.177
-
buffer_size
65535
-
build_time
2021-06-01T10:13:43.746606036Z
-
bypass_user_account_control
true
- bypass_user_account_control_data
-
clear_access_control
true
-
clear_zone_identifier
false
-
connect_delay
4000
-
connection_port
6060
-
default_group
HYDROGEN
-
enable_debug_mode
true
-
gc_threshold
1.048576e+07
-
keep_alive_timeout
30000
-
keyboard_logging
false
-
lan_timeout
2500
-
max_packet_size
1.048576e+07
-
mutex
f21340ca-f3ab-4839-83a8-c9e6c48024b3
-
mutex_timeout
5000
-
prevent_system_sleep
false
-
primary_connection_host
bohemiabenz.ddns.net
-
primary_dns_server
37.235.1.174
-
request_elevation
true
-
restart_delay
5000
-
run_delay
0
-
run_on_startup
false
-
set_critical_process
true
-
timeout_interval
5000
-
use_custom_dns_server
false
-
version
1.2.2.0
-
wan_timeout
8000
Signatures
- Detect ZGRat V1 34 IoCs
resource yara_rule behavioral2/memory/4300-10-0x00000000065C0000-0x000000000663C000-memory.dmp family_zgrat_v1 behavioral2/memory/4300-11-0x00000000065C0000-0x0000000006636000-memory.dmp family_zgrat_v1 behavioral2/memory/4300-12-0x00000000065C0000-0x0000000006636000-memory.dmp family_zgrat_v1 behavioral2/memory/4300-14-0x00000000065C0000-0x0000000006636000-memory.dmp family_zgrat_v1 behavioral2/memory/4300-16-0x00000000065C0000-0x0000000006636000-memory.dmp family_zgrat_v1 behavioral2/memory/4300-18-0x00000000065C0000-0x0000000006636000-memory.dmp family_zgrat_v1 behavioral2/memory/4300-20-0x00000000065C0000-0x0000000006636000-memory.dmp family_zgrat_v1 behavioral2/memory/4300-22-0x00000000065C0000-0x0000000006636000-memory.dmp family_zgrat_v1 behavioral2/memory/4300-24-0x00000000065C0000-0x0000000006636000-memory.dmp family_zgrat_v1 behavioral2/memory/4300-26-0x00000000065C0000-0x0000000006636000-memory.dmp family_zgrat_v1 behavioral2/memory/4300-28-0x00000000065C0000-0x0000000006636000-memory.dmp family_zgrat_v1 behavioral2/memory/4300-30-0x00000000065C0000-0x0000000006636000-memory.dmp family_zgrat_v1 behavioral2/memory/4300-32-0x00000000065C0000-0x0000000006636000-memory.dmp family_zgrat_v1 behavioral2/memory/4300-34-0x00000000065C0000-0x0000000006636000-memory.dmp family_zgrat_v1 behavioral2/memory/4300-36-0x00000000065C0000-0x0000000006636000-memory.dmp family_zgrat_v1 behavioral2/memory/4300-38-0x00000000065C0000-0x0000000006636000-memory.dmp family_zgrat_v1 behavioral2/memory/4300-40-0x00000000065C0000-0x0000000006636000-memory.dmp family_zgrat_v1 behavioral2/memory/4300-42-0x00000000065C0000-0x0000000006636000-memory.dmp family_zgrat_v1 behavioral2/memory/4300-44-0x00000000065C0000-0x0000000006636000-memory.dmp family_zgrat_v1 behavioral2/memory/4300-46-0x00000000065C0000-0x0000000006636000-memory.dmp family_zgrat_v1 behavioral2/memory/4300-48-0x00000000065C0000-0x0000000006636000-memory.dmp family_zgrat_v1 behavioral2/memory/4300-52-0x00000000065C0000-0x0000000006636000-memory.dmp family_zgrat_v1 behavioral2/memory/4300-50-0x00000000065C0000-0x0000000006636000-memory.dmp family_zgrat_v1 behavioral2/memory/4300-54-0x00000000065C0000-0x0000000006636000-memory.dmp family_zgrat_v1 behavioral2/memory/4300-56-0x00000000065C0000-0x0000000006636000-memory.dmp family_zgrat_v1 behavioral2/memory/4300-58-0x00000000065C0000-0x0000000006636000-memory.dmp family_zgrat_v1 behavioral2/memory/4300-60-0x00000000065C0000-0x0000000006636000-memory.dmp family_zgrat_v1 behavioral2/memory/4300-62-0x00000000065C0000-0x0000000006636000-memory.dmp family_zgrat_v1 behavioral2/memory/4300-64-0x00000000065C0000-0x0000000006636000-memory.dmp family_zgrat_v1 behavioral2/memory/4300-66-0x00000000065C0000-0x0000000006636000-memory.dmp family_zgrat_v1 behavioral2/memory/4300-68-0x00000000065C0000-0x0000000006636000-memory.dmp family_zgrat_v1 behavioral2/memory/4300-70-0x00000000065C0000-0x0000000006636000-memory.dmp family_zgrat_v1 behavioral2/memory/4300-72-0x00000000065C0000-0x0000000006636000-memory.dmp family_zgrat_v1 behavioral2/memory/4300-74-0x00000000065C0000-0x0000000006636000-memory.dmp family_zgrat_v1 - Checks computer location settings 2 TTPs 2 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-609813121-2907144057-1731107329-1000\Control Panel\International\Geo\Nation cc67adca18aa492545571dd5c02ec4e9.exe Key value queried \REGISTRY\USER\S-1-5-21-609813121-2907144057-1731107329-1000\Control Panel\International\Geo\Nation WScript.exe - Executes dropped EXE 2 IoCs
pid Process 2936 RegAsm.exe 956 RegAsm.exe - Unexpected DNS network traffic destination 4 IoCs
Network traffic to other servers than the configured DNS servers was detected on the DNS port.
description ioc Destination IP 37.235.1.177 Destination IP 37.235.1.174 Destination IP 37.235.1.177 Destination IP 37.235.1.174 - Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\ARP Manager = "C:\\Program Files (x86)\\ARP Manager\\arpmgr.exe" RegAsm.exe -
description ioc Process Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA RegAsm.exe - Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 4300 set thread context of 956 4300 cc67adca18aa492545571dd5c02ec4e9.exe 110 - Drops file in Program Files directory 2 IoCs
description ioc Process File created C:\Program Files (x86)\ARP Manager\arpmgr.exe RegAsm.exe File opened for modification C:\Program Files (x86)\ARP Manager\arpmgr.exe RegAsm.exe - Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Modifies registry class 1 IoCs
description ioc Process Key created \REGISTRY\USER\S-1-5-21-609813121-2907144057-1731107329-1000_Classes\Local Settings cc67adca18aa492545571dd5c02ec4e9.exe - Suspicious behavior: EnumeratesProcesses 11 IoCs
pid Process 4300 cc67adca18aa492545571dd5c02ec4e9.exe 4300 cc67adca18aa492545571dd5c02ec4e9.exe 4300 cc67adca18aa492545571dd5c02ec4e9.exe 4300 cc67adca18aa492545571dd5c02ec4e9.exe 4300 cc67adca18aa492545571dd5c02ec4e9.exe 4300 cc67adca18aa492545571dd5c02ec4e9.exe 956 RegAsm.exe 956 RegAsm.exe 956 RegAsm.exe 2840 powershell.exe 2840 powershell.exe - Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 956 RegAsm.exe - Suspicious use of AdjustPrivilegeToken 3 IoCs
description pid Process Token: SeDebugPrivilege 4300 cc67adca18aa492545571dd5c02ec4e9.exe Token: SeDebugPrivilege 2840 powershell.exe Token: SeDebugPrivilege 956 RegAsm.exe - Suspicious use of WriteProcessMemory 17 IoCs
description pid Process procid_target PID 4300 wrote to memory of 4944 4300 cc67adca18aa492545571dd5c02ec4e9.exe 108 PID 4300 wrote to memory of 4944 4300 cc67adca18aa492545571dd5c02ec4e9.exe 108 PID 4300 wrote to memory of 4944 4300 cc67adca18aa492545571dd5c02ec4e9.exe 108 PID 4300 wrote to memory of 2936 4300 cc67adca18aa492545571dd5c02ec4e9.exe 109 PID 4300 wrote to memory of 2936 4300 cc67adca18aa492545571dd5c02ec4e9.exe 109 PID 4300 wrote to memory of 2936 4300 cc67adca18aa492545571dd5c02ec4e9.exe 109 PID 4300 wrote to memory of 956 4300 cc67adca18aa492545571dd5c02ec4e9.exe 110 PID 4300 wrote to memory of 956 4300 cc67adca18aa492545571dd5c02ec4e9.exe 110 PID 4300 wrote to memory of 956 4300 cc67adca18aa492545571dd5c02ec4e9.exe 110 PID 4300 wrote to memory of 956 4300 cc67adca18aa492545571dd5c02ec4e9.exe 110 PID 4300 wrote to memory of 956 4300 cc67adca18aa492545571dd5c02ec4e9.exe 110 PID 4300 wrote to memory of 956 4300 cc67adca18aa492545571dd5c02ec4e9.exe 110 PID 4300 wrote to memory of 956 4300 cc67adca18aa492545571dd5c02ec4e9.exe 110 PID 4300 wrote to memory of 956 4300 cc67adca18aa492545571dd5c02ec4e9.exe 110 PID 4944 wrote to memory of 2840 4944 WScript.exe 112 PID 4944 wrote to memory of 2840 4944 WScript.exe 112 PID 4944 wrote to memory of 2840 4944 WScript.exe 112
Processes
-
C:\Users\Admin\AppData\Local\Temp\cc67adca18aa492545571dd5c02ec4e9.exe"C:\Users\Admin\AppData\Local\Temp\cc67adca18aa492545571dd5c02ec4e9.exe"1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4300 -
C:\Windows\SysWOW64\WScript.exe"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\_Oulukktmhwezyrksfvt.vbs"2⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4944 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Set-MpPreference -ExclusionPath C:\,'C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\200chrome.exe'3⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2840
-
-
-
C:\Users\Admin\AppData\Local\Temp\RegAsm.exeC:\Users\Admin\AppData\Local\Temp\RegAsm.exe2⤵
- Executes dropped EXE
PID:2936
-
-
C:\Users\Admin\AppData\Local\Temp\RegAsm.exeC:\Users\Admin\AppData\Local\Temp\RegAsm.exe2⤵
- Executes dropped EXE
- 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
PID:956
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
- Path C:\Users\Admin\AppData\Local\Temp\RegAsm.exe
- Size 63KB
- SHA256 c066aee7aa3aa83f763ebc5541daa266ed6c648fbffcde0d836a13b221bb2adc
- MD5 0d5df43af2916f47d00c1573797c1a13
- SHA1 230ab5559e806574d26b4c20847c368ed55483b0
- SHA512 f96cf9e1890746b12daf839a6d0f16f062b72c1b8a40439f96583f242980f10f867720232a6fa0f7d4d7ac0a7a6143981a5a130d6417ea98b181447134c7cfe2
- SSDEEP 768:X8XcJiMjm2ieHlPyCsSuJbn8dBhFwlSMF6Iq8KSYDKbQ22qWqO8w1R:rYMaNylPYSAb8dBnsHsPDKbQBqTY
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Local\Temp\_Oulukktmhwezyrksfvt.vbs
- Size 177B
- SHA256 57aa202b554994ab30f3a59b47e7b8044f716eb4a9d1c7ced6b9f79d26de7ad8
- MD5 bcc3b867bb0c9c09b3fd8ae278b884b6
- SHA1 b5fe9dad81f92ee435ca9c7c4b9e9072e2849190
- SHA512 f30f88b89e505f02529b645f5df7e7c77a540115229c93b42b9e87e3189c3d999f0ad7bc4661c5d487bc6e72650f5e06be1223e8092a9afd0d5482a16e554985
- MD5 SHA1 SHA512
- Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_3peh3msa.isn.ps1
- Size 60B
- SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
- MD5 d17fe0a3f47be24a6453e9ef58c94641
- SHA1 6ab83620379fc69f80c0242105ddffd7d98d5d9d
- SHA512 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
- MD5 SHA1 SHA512