nanocore | 10134e60c95416adb64713eef31fb396c0f2ecf97cb3162e4f01d40c851a8e8f

General

Target

DOC20200602FACEMASK.exe
Size

1.2MB
MD5

3fca62fe4fdde607ad0a4ebcfeffe3ce
SHA1

6374aaa5263ab37bbd59939febd9e94f2f5c1b0a
SHA256

ca05f7a026f3e7fe6cdb73437a37629a528a7a62564c4a1866bc00442a2f2750
SHA512

c5dcbcb222453829c451aacc2ff0d32cb2d43f29aaeef7ce471e286dad8d196cc2f15cf2b9c119418aedb8494357e312de5b5a1e95c4f02ec856521f606bb578

Score

10^/10

nanocore keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

185.19.85.186:40510

Mutex

413937f8-0b4a-417f-a2dd-7581a42c5078

Attributes

activate_away_mode
true
backup_connection_host
185.19.85.186
backup_dns_server
8.8.4.4
buffer_size
65535
build_time
2020-03-14T02:56:31.129410036Z
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
40510
default_group
JUNE
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
413937f8-0b4a-417f-a2dd-7581a42c5078
mutex_timeout
5000
prevent_system_sleep
false
primary_connection_host
185.19.85.186
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

Drops startup file 1 IoCs

Processes:

DOC20200602FACEMASK.exe

description	ioc	process
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\logman.url	DOC20200602FACEMASK.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

MSBuild.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\SCSI Subsystem = "C:\\Program Files (x86)\\SCSI Subsystem\\scsiss.exe"	MSBuild.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

DOC20200602FACEMASK.exe

description pid process target process

PID 1196 set thread context of 2028 1196 DOC20200602FACEMASK.exe MSBuild.exe

description	pid	process	target process
PID 1196 set thread context of 2028	1196	DOC20200602FACEMASK.exe	MSBuild.exe

Drops file in Program Files directory 2 IoCs

Processes:

MSBuild.exe

description	ioc	process
File created	C:\Program Files (x86)\SCSI Subsystem\scsiss.exe	MSBuild.exe
File opened for modification	C:\Program Files (x86)\SCSI Subsystem\scsiss.exe	MSBuild.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

3048 schtasks.exe
2676 schtasks.exe

pid	process
3048	schtasks.exe
2676	schtasks.exe

Suspicious behavior: EnumeratesProcesses 31 IoCs

Processes:

MSBuild.exeDOC20200602FACEMASK.exe

pid	process
2028	MSBuild.exe
2028	MSBuild.exe
2028	MSBuild.exe
1196	DOC20200602FACEMASK.exe
1196	DOC20200602FACEMASK.exe
1196	DOC20200602FACEMASK.exe
1196	DOC20200602FACEMASK.exe
1196	DOC20200602FACEMASK.exe
1196	DOC20200602FACEMASK.exe
1196	DOC20200602FACEMASK.exe
1196	DOC20200602FACEMASK.exe
1196	DOC20200602FACEMASK.exe
1196	DOC20200602FACEMASK.exe
1196	DOC20200602FACEMASK.exe
1196	DOC20200602FACEMASK.exe
1196	DOC20200602FACEMASK.exe
1196	DOC20200602FACEMASK.exe
1196	DOC20200602FACEMASK.exe
1196	DOC20200602FACEMASK.exe
1196	DOC20200602FACEMASK.exe
1196	DOC20200602FACEMASK.exe
1196	DOC20200602FACEMASK.exe
1196	DOC20200602FACEMASK.exe
1196	DOC20200602FACEMASK.exe
1196	DOC20200602FACEMASK.exe
1196	DOC20200602FACEMASK.exe
1196	DOC20200602FACEMASK.exe
1196	DOC20200602FACEMASK.exe
1196	DOC20200602FACEMASK.exe
1196	DOC20200602FACEMASK.exe
1196	DOC20200602FACEMASK.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

MSBuild.exe

pid process

2028 MSBuild.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

MSBuild.exe

description pid process

Token: SeDebugPrivilege 2028 MSBuild.exe
Suspicious use of FindShellTrayWindow 3 IoCs

Processes:

DOC20200602FACEMASK.exe

pid process

1196 DOC20200602FACEMASK.exe
1196 DOC20200602FACEMASK.exe
1196 DOC20200602FACEMASK.exe
Suspicious use of SendNotifyMessage 3 IoCs

Processes:

DOC20200602FACEMASK.exe

pid process

1196 DOC20200602FACEMASK.exe
1196 DOC20200602FACEMASK.exe
1196 DOC20200602FACEMASK.exe

description	pid	process
Token: SeDebugPrivilege	2028	MSBuild.exe

pid	process
1196	DOC20200602FACEMASK.exe
1196	DOC20200602FACEMASK.exe
1196	DOC20200602FACEMASK.exe

pid	process
1196	DOC20200602FACEMASK.exe
1196	DOC20200602FACEMASK.exe
1196	DOC20200602FACEMASK.exe

Suspicious use of WriteProcessMemory 11 IoCs

Processes:

DOC20200602FACEMASK.exeMSBuild.exe

description	pid	process	target process
PID 1196 wrote to memory of 2028	1196	DOC20200602FACEMASK.exe	MSBuild.exe
PID 1196 wrote to memory of 2028	1196	DOC20200602FACEMASK.exe	MSBuild.exe
PID 1196 wrote to memory of 2028	1196	DOC20200602FACEMASK.exe	MSBuild.exe
PID 1196 wrote to memory of 2028	1196	DOC20200602FACEMASK.exe	MSBuild.exe
PID 1196 wrote to memory of 2028	1196	DOC20200602FACEMASK.exe	MSBuild.exe
PID 2028 wrote to memory of 3048	2028	MSBuild.exe	schtasks.exe
PID 2028 wrote to memory of 3048	2028	MSBuild.exe	schtasks.exe
PID 2028 wrote to memory of 3048	2028	MSBuild.exe	schtasks.exe
PID 2028 wrote to memory of 2676	2028	MSBuild.exe	schtasks.exe
PID 2028 wrote to memory of 2676	2028	MSBuild.exe	schtasks.exe
PID 2028 wrote to memory of 2676	2028	MSBuild.exe	schtasks.exe

C:\Users\Admin\AppData\Local\Temp\DOC20200602FACEMASK.exe
"C:\Users\Admin\AppData\Local\Temp\DOC20200602FACEMASK.exe"
1⤵
- Drops startup file
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:1196

C:\Windows\Microsoft.NET\Framework\v2.0.50727\MSBuild.exe
"C:\\\\Windows\\\\Microsoft.NET\\\\Framework\\\\v2.0.50727\\\\MSBuild.exe"
2⤵
- Adds Run key to start application
- Drops file in Program Files directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2028

C:\Windows\SysWOW64\schtasks.exe
"schtasks.exe" /create /f /tn "SCSI Subsystem" /xml "C:\Users\Admin\AppData\Local\Temp\tmp86C9.tmp"
3⤵
- Creates scheduled task(s)
PID:3048

C:\Windows\SysWOW64\schtasks.exe
"schtasks.exe" /create /f /tn "SCSI Subsystem Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmp87B4.tmp"
3⤵
- Creates scheduled task(s)
PID:2676

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

Registry Run Keys / Startup Folder

1

T1060

Scheduled Task

1

T1053

Privilege Escalation

Scheduled Task

1

T1053

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmp86C9.tmp
Filesize
1KB

MD5
ae766004c0d8792953bafffe8f6a2e3b

SHA1
14b12f27543a401e2fe0af8052e116cab0032426

SHA256
1abdd9b6a6b84e4ba1af1282dc84ce276c59ba253f4c4af05fea498a4fd99540

SHA512
e530da4a5d4336fc37838d0e93b5eb3804b9c489c71f6954a47fc81a4c655bb72ec493e109cf96e6e3617d7623ac80697ad3bbd5ffc6281bafc8b34dca5e6567

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp87B4.tmp
Filesize
1KB

MD5
bd110f9fc6c1a842f1d9b269010b0611

SHA1
ef71c062902602faef9b66dcd1cfc9fe5baaf389

SHA256
8135c4e4eeaa741f752c0ab8f4ee33e3bb8a0cac5923812234f2e5177d50eb5b

SHA512
b8a7943a3126880b26407800bbdad5402c5b0e2aa106e7dbbb35d0cb145ca9de114401573a6aa66042a2e13674cfbcc2981d66b813f9b923fff5302210afba1f

Download Submit
memory/1196-136-0x0000000003FF0000-0x0000000004056000-memory.dmp

Filesize
408KB

Download
memory/1196-137-0x0000000003F10000-0x0000000003F76000-memory.dmp

Filesize
408KB

Download
memory/2028-130-0x0000000000000000-mapping.dmp

Download
memory/2028-131-0x0000000000780000-0x00000000007B8000-memory.dmp

Filesize
224KB

Download
memory/2028-138-0x00000000742C0000-0x0000000074871000-memory.dmp

Filesize
5.7MB

Download
memory/2676-141-0x0000000000000000-mapping.dmp

Download
memory/3048-139-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads