nanocore | bb08e42bfb63552a1af7ab0e24bb040c9f2854f2521fda176e80c80dd17beec7

General

Target

DRAFT BL-DOCS-20211510-VP-KMC022021.scr
Size

382KB
MD5

bc87c171c5e5c075ebcb336ca4518452
SHA1

29854b8268bb99a6f26df87229107fcfbf815d87
SHA256

bb08e42bfb63552a1af7ab0e24bb040c9f2854f2521fda176e80c80dd17beec7
SHA512

85509f5e3eebbecd909da16102a9183484d1c88d269cf541bd20cca6dd6fd9ffddda27f84f441f2ec07dd91b3db600524dedd59886d8f4543d5ccb6f2f68dbae

Score

10^/10

nanocore keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

185.140.53.75:97

Mutex

75237636-ccfc-402a-827d-5ad01371659e

Attributes

activate_away_mode
true
backup_connection_host
backup_dns_server
8.8.4.4
buffer_size
65535
build_time
2021-07-24T01:53:34.394429836Z
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
97
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
75237636-ccfc-402a-827d-5ad01371659e
mutex_timeout
5000
prevent_system_sleep
false
primary_connection_host
185.140.53.75
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:

RegSvcs.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\SMTP Service = "C:\\Program Files (x86)\\SMTP Service\\smtpsvc.exe"	RegSvcs.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

DRAFT BL-DOCS-20211510-VP-KMC022021.scr

description pid process target process

PID 956 set thread context of 1840 956 DRAFT BL-DOCS-20211510-VP-KMC022021.scr RegSvcs.exe

description	pid	process	target process
PID 956 set thread context of 1840	956	DRAFT BL-DOCS-20211510-VP-KMC022021.scr	RegSvcs.exe

Drops file in Program Files directory 2 IoCs

Processes:

RegSvcs.exe

description	ioc	process
File opened for modification	C:\Program Files (x86)\SMTP Service\smtpsvc.exe	RegSvcs.exe
File created	C:\Program Files (x86)\SMTP Service\smtpsvc.exe	RegSvcs.exe

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

System Information Discovery
T1082
Creates scheduled task(s) 1 TTPs 3 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
persistence

Scheduled Task
T1053

Processes:

schtasks.exeschtasks.exeschtasks.exe

pid process

1740 schtasks.exe
1936 schtasks.exe
1172 schtasks.exe

pid	process
1740	schtasks.exe
1936	schtasks.exe
1172	schtasks.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

Processes:

DRAFT BL-DOCS-20211510-VP-KMC022021.scrpowershell.exeRegSvcs.exe

pid	process
956	DRAFT BL-DOCS-20211510-VP-KMC022021.scr
956	DRAFT BL-DOCS-20211510-VP-KMC022021.scr
1416	powershell.exe
1840	RegSvcs.exe
1840	RegSvcs.exe
1840	RegSvcs.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

RegSvcs.exe

pid process

1840 RegSvcs.exe

pid	process
1840	RegSvcs.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

DRAFT BL-DOCS-20211510-VP-KMC022021.scrpowershell.exeRegSvcs.exe

description	pid	process
Token: SeDebugPrivilege	956	DRAFT BL-DOCS-20211510-VP-KMC022021.scr
Token: SeDebugPrivilege	1416	powershell.exe
Token: SeDebugPrivilege	1840	RegSvcs.exe

Suspicious use of WriteProcessMemory 28 IoCs

Processes:

DRAFT BL-DOCS-20211510-VP-KMC022021.scrRegSvcs.exe

description	pid	process	target process
PID 956 wrote to memory of 1416	956	DRAFT BL-DOCS-20211510-VP-KMC022021.scr	powershell.exe
PID 956 wrote to memory of 1416	956	DRAFT BL-DOCS-20211510-VP-KMC022021.scr	powershell.exe
PID 956 wrote to memory of 1416	956	DRAFT BL-DOCS-20211510-VP-KMC022021.scr	powershell.exe
PID 956 wrote to memory of 1416	956	DRAFT BL-DOCS-20211510-VP-KMC022021.scr	powershell.exe
PID 956 wrote to memory of 1740	956	DRAFT BL-DOCS-20211510-VP-KMC022021.scr	schtasks.exe
PID 956 wrote to memory of 1740	956	DRAFT BL-DOCS-20211510-VP-KMC022021.scr	schtasks.exe
PID 956 wrote to memory of 1740	956	DRAFT BL-DOCS-20211510-VP-KMC022021.scr	schtasks.exe
PID 956 wrote to memory of 1740	956	DRAFT BL-DOCS-20211510-VP-KMC022021.scr	schtasks.exe
PID 956 wrote to memory of 1840	956	DRAFT BL-DOCS-20211510-VP-KMC022021.scr	RegSvcs.exe
PID 956 wrote to memory of 1840	956	DRAFT BL-DOCS-20211510-VP-KMC022021.scr	RegSvcs.exe
PID 956 wrote to memory of 1840	956	DRAFT BL-DOCS-20211510-VP-KMC022021.scr	RegSvcs.exe
PID 956 wrote to memory of 1840	956	DRAFT BL-DOCS-20211510-VP-KMC022021.scr	RegSvcs.exe
PID 956 wrote to memory of 1840	956	DRAFT BL-DOCS-20211510-VP-KMC022021.scr	RegSvcs.exe
PID 956 wrote to memory of 1840	956	DRAFT BL-DOCS-20211510-VP-KMC022021.scr	RegSvcs.exe
PID 956 wrote to memory of 1840	956	DRAFT BL-DOCS-20211510-VP-KMC022021.scr	RegSvcs.exe
PID 956 wrote to memory of 1840	956	DRAFT BL-DOCS-20211510-VP-KMC022021.scr	RegSvcs.exe
PID 956 wrote to memory of 1840	956	DRAFT BL-DOCS-20211510-VP-KMC022021.scr	RegSvcs.exe
PID 956 wrote to memory of 1840	956	DRAFT BL-DOCS-20211510-VP-KMC022021.scr	RegSvcs.exe
PID 956 wrote to memory of 1840	956	DRAFT BL-DOCS-20211510-VP-KMC022021.scr	RegSvcs.exe
PID 956 wrote to memory of 1840	956	DRAFT BL-DOCS-20211510-VP-KMC022021.scr	RegSvcs.exe
PID 1840 wrote to memory of 1936	1840	RegSvcs.exe	schtasks.exe
PID 1840 wrote to memory of 1936	1840	RegSvcs.exe	schtasks.exe
PID 1840 wrote to memory of 1936	1840	RegSvcs.exe	schtasks.exe
PID 1840 wrote to memory of 1936	1840	RegSvcs.exe	schtasks.exe
PID 1840 wrote to memory of 1172	1840	RegSvcs.exe	schtasks.exe
PID 1840 wrote to memory of 1172	1840	RegSvcs.exe	schtasks.exe
PID 1840 wrote to memory of 1172	1840	RegSvcs.exe	schtasks.exe
PID 1840 wrote to memory of 1172	1840	RegSvcs.exe	schtasks.exe

C:\Users\Admin\AppData\Local\Temp\DRAFT BL-DOCS-20211510-VP-KMC022021.scr
"C:\Users\Admin\AppData\Local\Temp\DRAFT BL-DOCS-20211510-VP-KMC022021.scr" /S
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:956

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\DRAFT BL-DOCS-20211510-VP-KMC022021.scr"
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1416

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\vlzcRkmDiOmdD" /XML "C:\Users\Admin\AppData\Local\Temp\tmp82D6.tmp"
2⤵
- Creates scheduled task(s)
PID:1740

C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegSvcs.exe
"C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegSvcs.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:1840

C:\Windows\SysWOW64\schtasks.exe
"schtasks.exe" /create /f /tn "SMTP Service" /xml "C:\Users\Admin\AppData\Local\Temp\tmp86CC.tmp"
3⤵
- Creates scheduled task(s)
PID:1936

C:\Windows\SysWOW64\schtasks.exe
"schtasks.exe" /create /f /tn "SMTP Service Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmp8BCC.tmp"
3⤵
- Creates scheduled task(s)
PID:1172

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

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmp86CC.tmp
MD5
40b11ef601fb28f9b2e69d36857bf2ec

SHA1
b6454020ad2ceed193f4792b77001d0bd741b370

SHA256
c51e12d18cc664425f6711d8ae2507068884c7057092cfa11884100e1e9d49e1

SHA512
e3c5bcc714cbfca4b8058ddcddf231dcefa69c15881ce3f8123e59ed45cfb5da052b56e1945dcf8dc7f800d62f9a4eecb82bca69a66a1530787aeffeb15e2bd5

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp8BCC.tmp
MD5
cfae5a3b7d8aa9653fe2512578a0d23a

SHA1
a91a2f8daef114f89038925ada6784646a0a5b12

SHA256
2ab741415f193a2a9134eac48a2310899d18efb5e61c3e81c35140a7efea30fa

SHA512
9dfd7eca6924ae2785ce826a447b6ce6d043c552fbd3b8a804ce6722b07a74900e703dc56cd4443cae9ab9601f21a6068e29771e48497a9ae434096a11814e84

Download Submit
memory/956-56-0x0000000001FC0000-0x0000000001FC1000-memory.dmp

Filesize
4KB

Download
memory/956-57-0x0000000001FC1000-0x0000000001FC2000-memory.dmp

Filesize
4KB

Download
memory/956-55-0x0000000075F41000-0x0000000075F43000-memory.dmp

Filesize
8KB

Download
memory/1172-74-0x0000000000000000-mapping.dmp

Download
memory/1416-69-0x0000000002560000-0x00000000031AA000-memory.dmp

Filesize
12.3MB

Download
memory/1416-58-0x0000000000000000-mapping.dmp

Download
memory/1416-71-0x0000000002560000-0x00000000031AA000-memory.dmp

Filesize
12.3MB

Download
memory/1416-70-0x0000000002560000-0x00000000031AA000-memory.dmp

Filesize
12.3MB

Download
memory/1740-60-0x0000000000000000-mapping.dmp

Download
memory/1840-66-0x000000000041E792-mapping.dmp

Download
memory/1840-65-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1840-64-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1840-68-0x00000000004E0000-0x00000000004E1000-memory.dmp

Filesize
4KB

Download
memory/1840-63-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1840-62-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1840-61-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1840-76-0x00000000004E1000-0x00000000004E2000-memory.dmp

Filesize
4KB

Download
memory/1936-72-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads