nanocore | 208caf830ee7e21732543dd4440d9908de1354ffc57e246339a9660c7609ce6f

General

Target

75fc4bd3b1f1d99b1f6ed722a1336296.exe
Size

1.8MB
MD5

75fc4bd3b1f1d99b1f6ed722a1336296
SHA1

0a37747013749af59be5767ecbffd1bf4a683b65
SHA256

208caf830ee7e21732543dd4440d9908de1354ffc57e246339a9660c7609ce6f
SHA512

351601b675388977066fac3f8cd790fa64fd6d29922a49a76431a08d5ac82c5590e8b3417633942ee36a37986ad99b9836d4ebeb7c09a4bfe9f7942c025c1722

Score

10^/10

nanocore evasion keylogger persistence ransomware spyware stealer trojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

dmjncbzvayuywqalponmcbvzcxhyuesgfhdnautwm.ydns.eu:2420

Mutex

9a83c6a0-5b64-416c-b0dc-d47048e32edf

Attributes

activate_away_mode
true
backup_connection_host
backup_dns_server
8.8.4.4
buffer_size
65535
build_time
2020-11-08T01:17:30.860776436Z
bypass_user_account_control
false
bypass_user_account_control_data
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
clear_access_control
true
clear_zone_identifier
false
connect_delay
4000
connection_port
2420
default_group
Default
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
9a83c6a0-5b64-416c-b0dc-d47048e32edf
mutex_timeout
5000
prevent_system_sleep
false
primary_connection_host
dmjncbzvayuywqalponmcbvzcxhyuesgfhdnautwm.ydns.eu
primary_dns_server
8.8.8.8
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

NanoCore
NanoCore is a remote access tool (RAT) with a variety of capabilities.
keylogger trojan stealer spyware nanocore

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

75fc4bd3b1f1d99b1f6ed722a1336296.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\WPA Host = "C:\\Program Files (x86)\\WPA Host\\wpahost.exe"	75fc4bd3b1f1d99b1f6ed722a1336296.exe

Checks whether UAC is enabled 1 TTPs 1 IoCs

evasion trojan

System Information Discovery

T1082

Processes:

75fc4bd3b1f1d99b1f6ed722a1336296.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	75fc4bd3b1f1d99b1f6ed722a1336296.exe

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

System Information Discovery
T1082

Suspicious use of NtSetInformationThreadHideFromDebugger 7 IoCs

Processes:

75fc4bd3b1f1d99b1f6ed722a1336296.exe

pid	process
2028	75fc4bd3b1f1d99b1f6ed722a1336296.exe
2028	75fc4bd3b1f1d99b1f6ed722a1336296.exe
2028	75fc4bd3b1f1d99b1f6ed722a1336296.exe
2028	75fc4bd3b1f1d99b1f6ed722a1336296.exe
2028	75fc4bd3b1f1d99b1f6ed722a1336296.exe
2028	75fc4bd3b1f1d99b1f6ed722a1336296.exe
2028	75fc4bd3b1f1d99b1f6ed722a1336296.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

75fc4bd3b1f1d99b1f6ed722a1336296.exe

description pid process target process

PID 2028 set thread context of 1656 2028 75fc4bd3b1f1d99b1f6ed722a1336296.exe 75fc4bd3b1f1d99b1f6ed722a1336296.exe

description	pid	process	target process
PID 2028 set thread context of 1656	2028	75fc4bd3b1f1d99b1f6ed722a1336296.exe	75fc4bd3b1f1d99b1f6ed722a1336296.exe

Drops file in Program Files directory 2 IoCs

Processes:

75fc4bd3b1f1d99b1f6ed722a1336296.exe

description	ioc	process
File created	C:\Program Files (x86)\WPA Host\wpahost.exe	75fc4bd3b1f1d99b1f6ed722a1336296.exe
File opened for modification	C:\Program Files (x86)\WPA Host\wpahost.exe	75fc4bd3b1f1d99b1f6ed722a1336296.exe

Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

1076 2028 WerFault.exe 75fc4bd3b1f1d99b1f6ed722a1336296.exe
Creates scheduled task(s) 1 TTPs 2 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
persistence

Scheduled Task
T1053

Processes:

schtasks.exeschtasks.exe

pid process

1120 schtasks.exe
1148 schtasks.exe
Delays execution with timeout.exe 1 IoCs
evasion

Processes:

timeout.exe

pid process

1108 timeout.exe

pid	pid_target	process	target process
1076	2028	WerFault.exe	75fc4bd3b1f1d99b1f6ed722a1336296.exe

pid	process
1120	schtasks.exe
1148	schtasks.exe

pid	process
1108	timeout.exe

Suspicious behavior: EnumeratesProcesses 11 IoCs

Processes:

75fc4bd3b1f1d99b1f6ed722a1336296.exeWerFault.exe75fc4bd3b1f1d99b1f6ed722a1336296.exe

pid	process
2028	75fc4bd3b1f1d99b1f6ed722a1336296.exe
2028	75fc4bd3b1f1d99b1f6ed722a1336296.exe
2028	75fc4bd3b1f1d99b1f6ed722a1336296.exe
1076	WerFault.exe
1076	WerFault.exe
1076	WerFault.exe
1076	WerFault.exe
1076	WerFault.exe
1656	75fc4bd3b1f1d99b1f6ed722a1336296.exe
1656	75fc4bd3b1f1d99b1f6ed722a1336296.exe
1656	75fc4bd3b1f1d99b1f6ed722a1336296.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

75fc4bd3b1f1d99b1f6ed722a1336296.exe

pid process

1656 75fc4bd3b1f1d99b1f6ed722a1336296.exe

pid	process
1656	75fc4bd3b1f1d99b1f6ed722a1336296.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

75fc4bd3b1f1d99b1f6ed722a1336296.exeWerFault.exe75fc4bd3b1f1d99b1f6ed722a1336296.exe

description	pid	process
Token: SeDebugPrivilege	2028	75fc4bd3b1f1d99b1f6ed722a1336296.exe
Token: SeDebugPrivilege	1076	WerFault.exe
Token: SeDebugPrivilege	1656	75fc4bd3b1f1d99b1f6ed722a1336296.exe

Suspicious use of WriteProcessMemory 29 IoCs

Processes:

75fc4bd3b1f1d99b1f6ed722a1336296.execmd.exe75fc4bd3b1f1d99b1f6ed722a1336296.exe

description	pid	process	target process
PID 2028 wrote to memory of 800	2028	75fc4bd3b1f1d99b1f6ed722a1336296.exe	cmd.exe
PID 2028 wrote to memory of 800	2028	75fc4bd3b1f1d99b1f6ed722a1336296.exe	cmd.exe
PID 2028 wrote to memory of 800	2028	75fc4bd3b1f1d99b1f6ed722a1336296.exe	cmd.exe
PID 2028 wrote to memory of 800	2028	75fc4bd3b1f1d99b1f6ed722a1336296.exe	cmd.exe
PID 800 wrote to memory of 1108	800	cmd.exe	timeout.exe
PID 800 wrote to memory of 1108	800	cmd.exe	timeout.exe
PID 800 wrote to memory of 1108	800	cmd.exe	timeout.exe
PID 800 wrote to memory of 1108	800	cmd.exe	timeout.exe
PID 2028 wrote to memory of 1656	2028	75fc4bd3b1f1d99b1f6ed722a1336296.exe	75fc4bd3b1f1d99b1f6ed722a1336296.exe
PID 2028 wrote to memory of 1656	2028	75fc4bd3b1f1d99b1f6ed722a1336296.exe	75fc4bd3b1f1d99b1f6ed722a1336296.exe
PID 2028 wrote to memory of 1656	2028	75fc4bd3b1f1d99b1f6ed722a1336296.exe	75fc4bd3b1f1d99b1f6ed722a1336296.exe
PID 2028 wrote to memory of 1656	2028	75fc4bd3b1f1d99b1f6ed722a1336296.exe	75fc4bd3b1f1d99b1f6ed722a1336296.exe
PID 2028 wrote to memory of 1656	2028	75fc4bd3b1f1d99b1f6ed722a1336296.exe	75fc4bd3b1f1d99b1f6ed722a1336296.exe
PID 2028 wrote to memory of 1656	2028	75fc4bd3b1f1d99b1f6ed722a1336296.exe	75fc4bd3b1f1d99b1f6ed722a1336296.exe
PID 2028 wrote to memory of 1656	2028	75fc4bd3b1f1d99b1f6ed722a1336296.exe	75fc4bd3b1f1d99b1f6ed722a1336296.exe
PID 2028 wrote to memory of 1656	2028	75fc4bd3b1f1d99b1f6ed722a1336296.exe	75fc4bd3b1f1d99b1f6ed722a1336296.exe
PID 2028 wrote to memory of 1656	2028	75fc4bd3b1f1d99b1f6ed722a1336296.exe	75fc4bd3b1f1d99b1f6ed722a1336296.exe
PID 2028 wrote to memory of 1076	2028	75fc4bd3b1f1d99b1f6ed722a1336296.exe	WerFault.exe
PID 2028 wrote to memory of 1076	2028	75fc4bd3b1f1d99b1f6ed722a1336296.exe	WerFault.exe
PID 2028 wrote to memory of 1076	2028	75fc4bd3b1f1d99b1f6ed722a1336296.exe	WerFault.exe
PID 2028 wrote to memory of 1076	2028	75fc4bd3b1f1d99b1f6ed722a1336296.exe	WerFault.exe
PID 1656 wrote to memory of 1120	1656	75fc4bd3b1f1d99b1f6ed722a1336296.exe	schtasks.exe
PID 1656 wrote to memory of 1120	1656	75fc4bd3b1f1d99b1f6ed722a1336296.exe	schtasks.exe
PID 1656 wrote to memory of 1120	1656	75fc4bd3b1f1d99b1f6ed722a1336296.exe	schtasks.exe
PID 1656 wrote to memory of 1120	1656	75fc4bd3b1f1d99b1f6ed722a1336296.exe	schtasks.exe
PID 1656 wrote to memory of 1148	1656	75fc4bd3b1f1d99b1f6ed722a1336296.exe	schtasks.exe
PID 1656 wrote to memory of 1148	1656	75fc4bd3b1f1d99b1f6ed722a1336296.exe	schtasks.exe
PID 1656 wrote to memory of 1148	1656	75fc4bd3b1f1d99b1f6ed722a1336296.exe	schtasks.exe
PID 1656 wrote to memory of 1148	1656	75fc4bd3b1f1d99b1f6ed722a1336296.exe	schtasks.exe

C:\Users\Admin\AppData\Local\Temp\75fc4bd3b1f1d99b1f6ed722a1336296.exe
"C:\Users\Admin\AppData\Local\Temp\75fc4bd3b1f1d99b1f6ed722a1336296.exe"
1⤵
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2028

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c timeout 1
2⤵
- Suspicious use of WriteProcessMemory
PID:800

C:\Windows\SysWOW64\timeout.exe
timeout 1
3⤵
- Delays execution with timeout.exe
PID:1108

C:\Users\Admin\AppData\Local\Temp\75fc4bd3b1f1d99b1f6ed722a1336296.exe
"C:\Users\Admin\AppData\Local\Temp\75fc4bd3b1f1d99b1f6ed722a1336296.exe"
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
PID:1656

C:\Windows\SysWOW64\schtasks.exe
"schtasks.exe" /create /f /tn "WPA Host" /xml "C:\Users\Admin\AppData\Local\Temp\tmp1832.tmp"
3⤵
- Creates scheduled task(s)
PID:1120

C:\Windows\SysWOW64\schtasks.exe
"schtasks.exe" /create /f /tn "WPA Host Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmp19C9.tmp"
3⤵
- Creates scheduled task(s)
PID:1148

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2028 -s 880
2⤵
- Program crash
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1076

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

Registry Run Keys / Startup Folder

Scheduled Task

Privilege Escalation

Scheduled Task

1

T1053

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmp1832.tmp

MD5
fa0614745927cd8150c9645f22e497cd

SHA1
fc50c9353fede1fb1aeb4ddd04b21ec6c5768702

SHA256
ec63f19d01724a3ee4c3550f7d82d3be5449f95191ddee342146d2d28c57b6c1

SHA512
72a260fa7a2993dbec57da6a1c4c40764411382aa6cf288dd3f970910d3ad45842250a8f6fbd5bcdc8d4f2057d810573dbd4c232af9a92afe922c9278e2ec472

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp19C9.tmp

MD5
819bdbdac3be050783d203020e6c4c30

SHA1
a373521fceb21cac8b93e55ee48578e40a6e740b

SHA256
0e5dedca6d0d3c50ebcedb5bbf51ef3d434eb6b43da46764205de7636131f053

SHA512
cece1c4d8b4db79fc6e3cd225efaccdf9d2493f28991b1d48439944af38aaa61a215bd00a0beedcbdecc4f1ec5be0843774375a483f3d4a573a3980c54798cbd

Download Submit
memory/800-6-0x0000000000000000-mapping.dmp

Download
memory/1076-14-0x0000000001E80000-0x0000000001E91000-memory.dmp

Filesize
68KB

Download
memory/1076-18-0x0000000000260000-0x0000000000261000-memory.dmp

Filesize
4KB

Download
memory/1076-11-0x0000000000000000-mapping.dmp

Download
memory/1108-7-0x0000000000000000-mapping.dmp

Download
memory/1120-20-0x0000000000000000-mapping.dmp

Download
memory/1148-22-0x0000000000000000-mapping.dmp

Download
memory/1656-12-0x0000000000400000-0x000000000043A000-memory.dmp

Filesize
232KB

Download
memory/1656-8-0x0000000000400000-0x000000000043A000-memory.dmp

Filesize
232KB

Download
memory/1656-19-0x0000000002320000-0x0000000002321000-memory.dmp

Filesize
4KB

Download
memory/1656-9-0x000000000041E792-mapping.dmp

Download
memory/1656-10-0x0000000074EE0000-0x00000000755CE000-memory.dmp

Filesize
6.9MB

Download
memory/1656-24-0x0000000000560000-0x0000000000565000-memory.dmp

Filesize
20KB

Download
memory/1656-25-0x00000000005C0000-0x00000000005D9000-memory.dmp

Filesize
100KB

Download
memory/1656-26-0x00000000005E0000-0x00000000005E3000-memory.dmp

Filesize
12KB

Download
memory/2028-2-0x0000000074EE0000-0x00000000755CE000-memory.dmp

Filesize
6.9MB

Download
memory/2028-17-0x0000000006180000-0x0000000006181000-memory.dmp

Filesize
4KB

Download
memory/2028-5-0x0000000000310000-0x0000000000352000-memory.dmp

Filesize
264KB

Download
memory/2028-3-0x0000000000A50000-0x0000000000A51000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads