nanocore | 13f409b60b9a72911c24840af2823a357783ac42298b323c098263d99e03efaa

General

Target

tmp.exe
Size

507KB
MD5

d7e3c43afd6736d96b99719ddd98aa44
SHA1

568b671264b38c3a04adbe345694d24a98048d91
SHA256

13f409b60b9a72911c24840af2823a357783ac42298b323c098263d99e03efaa
SHA512

6bfad217c196fe17756b1bab27ced20a37b299d34e5c9a84c4f4cde7af7bebbd89dd0b5ca86fe1f820b46cf8a7d9b9c02453e30f2fdf78ebc51a68d8747ff658

Score

10^/10

nanocore evasion keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

chochoinc07.bounceme.net:7650

127.0.0.1:7650

Mutex

751dbebb-3fd4-4ed7-9938-6ad470902777

Attributes

activate_away_mode
true
backup_connection_host
127.0.0.1
backup_dns_server
8.8.4.4
buffer_size
65535
build_time
2022-04-03T02:43:06.495130836Z
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
7650
default_group
GasGas
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
751dbebb-3fd4-4ed7-9938-6ad470902777
mutex_timeout
5000
prevent_system_sleep
false
primary_connection_host
chochoinc07.bounceme.net
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:

tmp.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\WPA Service = "C:\\Program Files (x86)\\WPA Service\\wpasv.exe"	tmp.exe

Checks whether UAC is enabled 1 TTPs 1 IoCs
evasion trojan

System Information Discovery
T1082

Processes:

tmp.exe

description ioc process

Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA tmp.exe

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

Drops file in System32 directory 2 IoCs

Processes:

svchost.exe

description	ioc	process
File created	C:\Windows\system32\config\systemprofile\AppData\Local\Microsoft\InstallService\{140747D1-0066-4DEF-BDDC-44CD1DA3DC37}.catalogItem	svchost.exe
File created	C:\Windows\system32\config\systemprofile\AppData\Local\Microsoft\InstallService\{DA6BD733-633C-4A28-9930-9FDA7B56C30C}.catalogItem	svchost.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

tmp.exe

description pid process target process

PID 4492 set thread context of 2036 4492 tmp.exe tmp.exe

description	pid	process	target process
PID 4492 set thread context of 2036	4492	tmp.exe	tmp.exe

Drops file in Program Files directory 2 IoCs

Processes:

tmp.exe

description	ioc	process
File created	C:\Program Files (x86)\WPA Service\wpasv.exe	tmp.exe
File opened for modification	C:\Program Files (x86)\WPA Service\wpasv.exe	tmp.exe

Checks processor information in registry 2 TTPs 3 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

Processes:

svchost.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	svchost.exe
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0	svchost.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	svchost.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

3824 schtasks.exe
3540 schtasks.exe

pid	process
3824	schtasks.exe
3540	schtasks.exe

Enumerates system info in registry 2 TTPs 2 IoCs

Query Registry

T1012

System Information Discovery

T1082

Processes:

svchost.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\BIOS	svchost.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU	svchost.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

Processes:

tmp.exe

pid process

2036 tmp.exe
2036 tmp.exe
2036 tmp.exe
Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

tmp.exe

pid process

2036 tmp.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

tmp.exe

description pid process

Token: SeDebugPrivilege 2036 tmp.exe

pid	process
2036	tmp.exe
2036	tmp.exe
2036	tmp.exe

pid	process
2036	tmp.exe

description	pid	process
Token: SeDebugPrivilege	2036	tmp.exe

Suspicious use of WriteProcessMemory 14 IoCs

Processes:

tmp.exetmp.exe

description	pid	process	target process
PID 4492 wrote to memory of 2036	4492	tmp.exe	tmp.exe
PID 4492 wrote to memory of 2036	4492	tmp.exe	tmp.exe
PID 4492 wrote to memory of 2036	4492	tmp.exe	tmp.exe
PID 4492 wrote to memory of 2036	4492	tmp.exe	tmp.exe
PID 4492 wrote to memory of 2036	4492	tmp.exe	tmp.exe
PID 4492 wrote to memory of 2036	4492	tmp.exe	tmp.exe
PID 4492 wrote to memory of 2036	4492	tmp.exe	tmp.exe
PID 4492 wrote to memory of 2036	4492	tmp.exe	tmp.exe
PID 2036 wrote to memory of 3540	2036	tmp.exe	schtasks.exe
PID 2036 wrote to memory of 3540	2036	tmp.exe	schtasks.exe
PID 2036 wrote to memory of 3540	2036	tmp.exe	schtasks.exe
PID 2036 wrote to memory of 3824	2036	tmp.exe	schtasks.exe
PID 2036 wrote to memory of 3824	2036	tmp.exe	schtasks.exe
PID 2036 wrote to memory of 3824	2036	tmp.exe	schtasks.exe

C:\Users\Admin\AppData\Local\Temp\tmp.exe
"C:\Users\Admin\AppData\Local\Temp\tmp.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4492

C:\Users\Admin\AppData\Local\Temp\tmp.exe
"C:\Users\Admin\AppData\Local\Temp\tmp.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:2036

C:\Windows\SysWOW64\schtasks.exe
"schtasks.exe" /create /f /tn "WPA Service" /xml "C:\Users\Admin\AppData\Local\Temp\tmp5E9B.tmp"
3⤵
- Creates scheduled task(s)
PID:3540

C:\Windows\SysWOW64\schtasks.exe
"schtasks.exe" /create /f /tn "WPA Service Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmp60FD.tmp"
3⤵
- Creates scheduled task(s)
PID:3824

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k netsvcs -p
1⤵
- Drops file in System32 directory
- Checks processor information in registry
- Enumerates system info in registry
PID:1372

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

3

T1082

Query Registry

2

T1012

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmp5E9B.tmp
Filesize
1KB

MD5
3f4dcafa44c36f23e4db2b2315fd09da

SHA1
8c83089d6f6c887a77af9b42ca09969f3b2f83f6

SHA256
b8475eb97200b8a15eaf07e0a2cddc5c95e5bc3e7a98685364c9796480de57dc

SHA512
e0624dd6cf0d5e014e96a323d2f7ebe13b683af71bd6ddafa3005cdc2f3c764cfca509262d442fc844b4b390d241ccf3eb36d30043d3d6f6e955a2ee9f792678

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp60FD.tmp
Filesize
1KB

MD5
21de6c3a6440d917bdbb4b491191d9b2

SHA1
c63c300affe7147910dc4544d2d5f3029bf321a6

SHA256
23af17733a3882cdd82a5bbc321d896b2430dc1bb4b4ac034d129cde5027afc4

SHA512
dcd1c464ed36593b990e072940ab415804ef8076743015fff4939211e30e436beb7ce6af3072769abe0214f737cedb210d2b45e6e90da20dac54c3945b11575f

Download Submit
memory/2036-134-0x0000000000000000-mapping.dmp

Download
memory/2036-135-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2036-136-0x0000000002AA0000-0x0000000002AAA000-memory.dmp

Filesize
40KB

Download
memory/3540-137-0x0000000000000000-mapping.dmp

Download
memory/3824-139-0x0000000000000000-mapping.dmp

Download
memory/4492-130-0x0000000000DC0000-0x0000000000E44000-memory.dmp

Filesize
528KB

Download
memory/4492-131-0x0000000005EB0000-0x0000000006454000-memory.dmp

Filesize
5.6MB

Download
memory/4492-132-0x00000000059B0000-0x0000000005A42000-memory.dmp

Filesize
584KB

Download
memory/4492-133-0x0000000009250000-0x00000000092EC000-memory.dmp

Filesize
624KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads