nanocore | 40318ceb6df45ff27cc97a5e63ef066c297cb91d3c9d9c6ed69c3bfb7a7052ac

General

Target

SecuriteInfo.com.Trojan.PWS.Steam.33549.12619.23276.exe
Size

934KB
MD5

63719163fb47ba4668aa8b7677c86702
SHA1

aee9cd41b3aa4cf05f70f8b54b90cd29ac2e3af7
SHA256

40318ceb6df45ff27cc97a5e63ef066c297cb91d3c9d9c6ed69c3bfb7a7052ac
SHA512

447d0c0c71dc49856bdb849677fc4bc448f21260f0cb269945086b8204800d8ec84c43778770ef7bcaf95f4319917f7616f10d9739158ed32793155fa8a4d6b1
SSDEEP

12288:xf7HuMUjpIA7DM8deM2Nec4e/Yq/Keas1/gR+3jLJ0BINZ:hH3cpnvJe/l/Taw/goLiB6

Score

10^/10

nanocore evasion keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

brightnano1.ddns.net:1989

171.22.30.97:1989

Mutex

fba1bbc6-2cc8-4c94-b6c0-dda5a12fd7fe

Attributes

activate_away_mode
true
backup_connection_host
171.22.30.97
backup_dns_server
8.8.4.4
buffer_size
65535
build_time
2022-06-10T14:34:05.030247036Z
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
1989
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
fba1bbc6-2cc8-4c94-b6c0-dda5a12fd7fe
mutex_timeout
5000
prevent_system_sleep
false
primary_connection_host
brightnano1.ddns.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:

SecuriteInfo.com.Trojan.PWS.Steam.33549.12619.23276.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\UDP Service = "C:\\Program Files (x86)\\UDP Service\\udpsv.exe"	SecuriteInfo.com.Trojan.PWS.Steam.33549.12619.23276.exe

Checks whether UAC is enabled 1 TTPs 1 IoCs

evasion trojan

System Information Discovery

T1082

Processes:

SecuriteInfo.com.Trojan.PWS.Steam.33549.12619.23276.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	SecuriteInfo.com.Trojan.PWS.Steam.33549.12619.23276.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

SecuriteInfo.com.Trojan.PWS.Steam.33549.12619.23276.exe

description	pid	process	target process
PID 1764 set thread context of 1328	1764	SecuriteInfo.com.Trojan.PWS.Steam.33549.12619.23276.exe	SecuriteInfo.com.Trojan.PWS.Steam.33549.12619.23276.exe

Drops file in Program Files directory 2 IoCs

Processes:

SecuriteInfo.com.Trojan.PWS.Steam.33549.12619.23276.exe

description	ioc	process
File created	C:\Program Files (x86)\UDP Service\udpsv.exe	SecuriteInfo.com.Trojan.PWS.Steam.33549.12619.23276.exe
File opened for modification	C:\Program Files (x86)\UDP Service\udpsv.exe	SecuriteInfo.com.Trojan.PWS.Steam.33549.12619.23276.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

1876 schtasks.exe
936 schtasks.exe
1380 schtasks.exe

pid	process
1876	schtasks.exe
936	schtasks.exe
1380	schtasks.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

SecuriteInfo.com.Trojan.PWS.Steam.33549.12619.23276.exe

pid	process
1328	SecuriteInfo.com.Trojan.PWS.Steam.33549.12619.23276.exe
1328	SecuriteInfo.com.Trojan.PWS.Steam.33549.12619.23276.exe
1328	SecuriteInfo.com.Trojan.PWS.Steam.33549.12619.23276.exe
1328	SecuriteInfo.com.Trojan.PWS.Steam.33549.12619.23276.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

SecuriteInfo.com.Trojan.PWS.Steam.33549.12619.23276.exe

pid process

1328 SecuriteInfo.com.Trojan.PWS.Steam.33549.12619.23276.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

SecuriteInfo.com.Trojan.PWS.Steam.33549.12619.23276.exe

description pid process

Token: SeDebugPrivilege 1328 SecuriteInfo.com.Trojan.PWS.Steam.33549.12619.23276.exe

description	pid	process
Token: SeDebugPrivilege	1328	SecuriteInfo.com.Trojan.PWS.Steam.33549.12619.23276.exe

Suspicious use of WriteProcessMemory 21 IoCs

Processes:

SecuriteInfo.com.Trojan.PWS.Steam.33549.12619.23276.exeSecuriteInfo.com.Trojan.PWS.Steam.33549.12619.23276.exe

description	pid	process	target process
PID 1764 wrote to memory of 936	1764	SecuriteInfo.com.Trojan.PWS.Steam.33549.12619.23276.exe	schtasks.exe
PID 1764 wrote to memory of 936	1764	SecuriteInfo.com.Trojan.PWS.Steam.33549.12619.23276.exe	schtasks.exe
PID 1764 wrote to memory of 936	1764	SecuriteInfo.com.Trojan.PWS.Steam.33549.12619.23276.exe	schtasks.exe
PID 1764 wrote to memory of 936	1764	SecuriteInfo.com.Trojan.PWS.Steam.33549.12619.23276.exe	schtasks.exe
PID 1764 wrote to memory of 1328	1764	SecuriteInfo.com.Trojan.PWS.Steam.33549.12619.23276.exe	SecuriteInfo.com.Trojan.PWS.Steam.33549.12619.23276.exe
PID 1764 wrote to memory of 1328	1764	SecuriteInfo.com.Trojan.PWS.Steam.33549.12619.23276.exe	SecuriteInfo.com.Trojan.PWS.Steam.33549.12619.23276.exe
PID 1764 wrote to memory of 1328	1764	SecuriteInfo.com.Trojan.PWS.Steam.33549.12619.23276.exe	SecuriteInfo.com.Trojan.PWS.Steam.33549.12619.23276.exe
PID 1764 wrote to memory of 1328	1764	SecuriteInfo.com.Trojan.PWS.Steam.33549.12619.23276.exe	SecuriteInfo.com.Trojan.PWS.Steam.33549.12619.23276.exe
PID 1764 wrote to memory of 1328	1764	SecuriteInfo.com.Trojan.PWS.Steam.33549.12619.23276.exe	SecuriteInfo.com.Trojan.PWS.Steam.33549.12619.23276.exe
PID 1764 wrote to memory of 1328	1764	SecuriteInfo.com.Trojan.PWS.Steam.33549.12619.23276.exe	SecuriteInfo.com.Trojan.PWS.Steam.33549.12619.23276.exe
PID 1764 wrote to memory of 1328	1764	SecuriteInfo.com.Trojan.PWS.Steam.33549.12619.23276.exe	SecuriteInfo.com.Trojan.PWS.Steam.33549.12619.23276.exe
PID 1764 wrote to memory of 1328	1764	SecuriteInfo.com.Trojan.PWS.Steam.33549.12619.23276.exe	SecuriteInfo.com.Trojan.PWS.Steam.33549.12619.23276.exe
PID 1764 wrote to memory of 1328	1764	SecuriteInfo.com.Trojan.PWS.Steam.33549.12619.23276.exe	SecuriteInfo.com.Trojan.PWS.Steam.33549.12619.23276.exe
PID 1328 wrote to memory of 1380	1328	SecuriteInfo.com.Trojan.PWS.Steam.33549.12619.23276.exe	schtasks.exe
PID 1328 wrote to memory of 1380	1328	SecuriteInfo.com.Trojan.PWS.Steam.33549.12619.23276.exe	schtasks.exe
PID 1328 wrote to memory of 1380	1328	SecuriteInfo.com.Trojan.PWS.Steam.33549.12619.23276.exe	schtasks.exe
PID 1328 wrote to memory of 1380	1328	SecuriteInfo.com.Trojan.PWS.Steam.33549.12619.23276.exe	schtasks.exe
PID 1328 wrote to memory of 1876	1328	SecuriteInfo.com.Trojan.PWS.Steam.33549.12619.23276.exe	schtasks.exe
PID 1328 wrote to memory of 1876	1328	SecuriteInfo.com.Trojan.PWS.Steam.33549.12619.23276.exe	schtasks.exe
PID 1328 wrote to memory of 1876	1328	SecuriteInfo.com.Trojan.PWS.Steam.33549.12619.23276.exe	schtasks.exe
PID 1328 wrote to memory of 1876	1328	SecuriteInfo.com.Trojan.PWS.Steam.33549.12619.23276.exe	schtasks.exe

C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Trojan.PWS.Steam.33549.12619.23276.exe
"C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Trojan.PWS.Steam.33549.12619.23276.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1764

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\jcCEfuc" /XML "C:\Users\Admin\AppData\Local\Temp\tmp8B8.tmp"
2⤵
- Creates scheduled task(s)
PID:936

C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Trojan.PWS.Steam.33549.12619.23276.exe
"{path}"
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:1328

C:\Windows\SysWOW64\schtasks.exe
"schtasks.exe" /create /f /tn "UDP Service" /xml "C:\Users\Admin\AppData\Local\Temp\tmpE25.tmp"
3⤵
- Creates scheduled task(s)
PID:1380

C:\Windows\SysWOW64\schtasks.exe
"schtasks.exe" /create /f /tn "UDP Service Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmpED2.tmp"
3⤵
- Creates scheduled task(s)
PID:1876

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

2

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmp8B8.tmp
Filesize
1KB

MD5
2a5690b616329ba766dcc009578d2388

SHA1
5ce61c49d9c9ac678991a4b76a9c50466060b69b

SHA256
3c543fc4614fde4d80a709eee0459fdf71af5c8708cc2a6ef5b94c58c3fe82cb

SHA512
872749d491731d71b0f51e2e21108214ee641cce732f44fb4e3b61faca4a7b9c38650cd0d8bb175ef72a8dd355b7ba247514aa470978f34155bcc58d77bdde86

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpE25.tmp
Filesize
1KB

MD5
4da23c94bdd75b22b4d9266ef9601a9c

SHA1
f49e75355030949854d6bd12a7043b6d708d3300

SHA256
0da10dcefbf768243c4884737a387a55b8b8815529ed1599448dfc06bceea280

SHA512
556ce3ecb4524528e4ea898ad4c8794a08c5062b480105a2a7dd06d02735e2379ac8bd35b03465b1b735fc8953db36dfb33af844acac7ec71be0abb9ea29846c

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpED2.tmp
Filesize
1KB

MD5
0a24db62cb5b84309c4803346caaa25d

SHA1
67660778f61bb44168c33ed3fe56ed86cf9583e8

SHA256
38d38647af394a04ee6add9f05c43244f04e64a6b96257f4b241a5038efa82df

SHA512
d25d9df063f44595d5e0bf890755bd387655131ff369eeedf3d11ffcc6202ca4455bbb33a8a926dd06839cbd1ddec3d06809b3c66a82c6518aa14beaa469a548

Download Submit
memory/936-60-0x0000000000000000-mapping.dmp

Download
memory/1328-63-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1328-85-0x00000000008B0000-0x00000000008BE000-memory.dmp

Filesize
56KB

Download
memory/1328-94-0x0000000002230000-0x0000000002244000-memory.dmp

Filesize
80KB

Download
memory/1328-93-0x0000000002280000-0x00000000022AE000-memory.dmp

Filesize
184KB

Download
memory/1328-62-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1328-92-0x0000000002190000-0x000000000219E000-memory.dmp

Filesize
56KB

Download
memory/1328-65-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1328-66-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1328-68-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1328-69-0x000000000041E792-mapping.dmp

Download
memory/1328-71-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1328-91-0x0000000002060000-0x0000000002074000-memory.dmp

Filesize
80KB

Download
memory/1328-74-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1328-90-0x0000000002050000-0x0000000002060000-memory.dmp

Filesize
64KB

Download
memory/1328-89-0x0000000002040000-0x0000000002054000-memory.dmp

Filesize
80KB

Download
memory/1328-88-0x00000000009B0000-0x00000000009BC000-memory.dmp

Filesize
48KB

Download
memory/1328-87-0x0000000000920000-0x000000000092E000-memory.dmp

Filesize
56KB

Download
memory/1328-80-0x0000000000550000-0x000000000055A000-memory.dmp

Filesize
40KB

Download
memory/1328-81-0x0000000000560000-0x000000000057E000-memory.dmp

Filesize
120KB

Download
memory/1328-82-0x0000000000580000-0x000000000058A000-memory.dmp

Filesize
40KB

Download
memory/1328-83-0x0000000000830000-0x0000000000842000-memory.dmp

Filesize
72KB

Download
memory/1328-84-0x0000000000840000-0x000000000085A000-memory.dmp

Filesize
104KB

Download
memory/1328-86-0x0000000000910000-0x0000000000922000-memory.dmp

Filesize
72KB

Download
memory/1380-76-0x0000000000000000-mapping.dmp

Download
memory/1764-59-0x0000000000510000-0x000000000054A000-memory.dmp

Filesize
232KB

Download
memory/1764-55-0x0000000075FC1000-0x0000000075FC3000-memory.dmp

Filesize
8KB

Download
memory/1764-56-0x0000000000420000-0x0000000000440000-memory.dmp

Filesize
128KB

Download
memory/1764-72-0x0000000004EF5000-0x0000000004F06000-memory.dmp

Filesize
68KB

Download
memory/1764-54-0x00000000009C0000-0x0000000000AB0000-memory.dmp

Filesize
960KB

Download
memory/1764-57-0x0000000004EF5000-0x0000000004F06000-memory.dmp

Filesize
68KB

Download
memory/1764-58-0x0000000005E20000-0x0000000005EAA000-memory.dmp

Filesize
552KB

Download
memory/1876-78-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads