nanocore | 52c280a9e1df79b39d176d673ebda000c46d89eab1477eae5b1a62f4ab8373bb

Analysis

max time kernel
122s
max time network
152s
platform
windows10_x64
resource
win10-en-20211208
submitted
14-01-2022 13:03

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General

Target

ozT6Kif37P9Trrb.exe
Size

561KB
MD5

0e66d7d3cea736262ae210aaaa00eeb5
SHA1

94393bb0ad4eeb3f818e34f57395642920920bb8
SHA256

52c280a9e1df79b39d176d673ebda000c46d89eab1477eae5b1a62f4ab8373bb
SHA512

1374f58fff67abef6c7f36bc023fc5bb7f19de5dae5c4d59601e31ba583be99deefc6846100f2de9283b002138c7d3c38c11cda30bdf6f7653da7e81bb108e67

Score

10^/10

nanocore keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

obeyice4rm392.bounceme.net:8951

127.0.0.1:8951

Mutex

fea2b910-0578-480b-a4fe-76b7fc47c575

Attributes

activate_away_mode
true
backup_connection_host
127.0.0.1
backup_dns_server
8.8.4.4
buffer_size
65535
build_time
2021-10-21T16:01:45.030500436Z
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
8951
default_group
Phaddy
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
fea2b910-0578-480b-a4fe-76b7fc47c575
mutex_timeout
5000
prevent_system_sleep
false
primary_connection_host
obeyice4rm392.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:

RegSvcs.exe

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

Suspicious use of SetThreadContext 1 IoCs

Processes:

ozT6Kif37P9Trrb.exe

description pid process target process

PID 2764 set thread context of 1212 2764 ozT6Kif37P9Trrb.exe RegSvcs.exe

description	pid	process	target process
PID 2764 set thread context of 1212	2764	ozT6Kif37P9Trrb.exe	RegSvcs.exe

Drops file in Program Files directory 2 IoCs

Processes:

RegSvcs.exe

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

3048 schtasks.exe
3068 schtasks.exe
872 schtasks.exe

pid	process
3048	schtasks.exe
3068	schtasks.exe
872	schtasks.exe

Suspicious behavior: EnumeratesProcesses 11 IoCs

Processes:

ozT6Kif37P9Trrb.exepowershell.exeRegSvcs.exe

pid	process
2764	ozT6Kif37P9Trrb.exe
2764	ozT6Kif37P9Trrb.exe
4052	powershell.exe
4052	powershell.exe
1212	RegSvcs.exe
1212	RegSvcs.exe
1212	RegSvcs.exe
4052	powershell.exe
1212	RegSvcs.exe
1212	RegSvcs.exe
1212	RegSvcs.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

RegSvcs.exe

pid process

1212 RegSvcs.exe
Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

ozT6Kif37P9Trrb.exepowershell.exeRegSvcs.exe

description pid process

Token: SeDebugPrivilege 2764 ozT6Kif37P9Trrb.exe
Token: SeDebugPrivilege 4052 powershell.exe
Token: SeDebugPrivilege 1212 RegSvcs.exe

pid	process
1212	RegSvcs.exe

description	pid	process
Token: SeDebugPrivilege	2764	ozT6Kif37P9Trrb.exe
Token: SeDebugPrivilege	4052	powershell.exe
Token: SeDebugPrivilege	1212	RegSvcs.exe

Suspicious use of WriteProcessMemory 20 IoCs

Processes:

ozT6Kif37P9Trrb.exeRegSvcs.exe

description	pid	process	target process
PID 2764 wrote to memory of 4052	2764	ozT6Kif37P9Trrb.exe	powershell.exe
PID 2764 wrote to memory of 4052	2764	ozT6Kif37P9Trrb.exe	powershell.exe
PID 2764 wrote to memory of 4052	2764	ozT6Kif37P9Trrb.exe	powershell.exe
PID 2764 wrote to memory of 3048	2764	ozT6Kif37P9Trrb.exe	schtasks.exe
PID 2764 wrote to memory of 3048	2764	ozT6Kif37P9Trrb.exe	schtasks.exe
PID 2764 wrote to memory of 3048	2764	ozT6Kif37P9Trrb.exe	schtasks.exe
PID 2764 wrote to memory of 1212	2764	ozT6Kif37P9Trrb.exe	RegSvcs.exe
PID 2764 wrote to memory of 1212	2764	ozT6Kif37P9Trrb.exe	RegSvcs.exe
PID 2764 wrote to memory of 1212	2764	ozT6Kif37P9Trrb.exe	RegSvcs.exe
PID 2764 wrote to memory of 1212	2764	ozT6Kif37P9Trrb.exe	RegSvcs.exe
PID 2764 wrote to memory of 1212	2764	ozT6Kif37P9Trrb.exe	RegSvcs.exe
PID 2764 wrote to memory of 1212	2764	ozT6Kif37P9Trrb.exe	RegSvcs.exe
PID 2764 wrote to memory of 1212	2764	ozT6Kif37P9Trrb.exe	RegSvcs.exe
PID 2764 wrote to memory of 1212	2764	ozT6Kif37P9Trrb.exe	RegSvcs.exe
PID 1212 wrote to memory of 3068	1212	RegSvcs.exe	schtasks.exe
PID 1212 wrote to memory of 3068	1212	RegSvcs.exe	schtasks.exe
PID 1212 wrote to memory of 3068	1212	RegSvcs.exe	schtasks.exe
PID 1212 wrote to memory of 872	1212	RegSvcs.exe	schtasks.exe
PID 1212 wrote to memory of 872	1212	RegSvcs.exe	schtasks.exe
PID 1212 wrote to memory of 872	1212	RegSvcs.exe	schtasks.exe

C:\Users\Admin\AppData\Local\Temp\ozT6Kif37P9Trrb.exe
"C:\Users\Admin\AppData\Local\Temp\ozT6Kif37P9Trrb.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2764

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\cVaRnofAle.exe"
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4052

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\cVaRnofAle" /XML "C:\Users\Admin\AppData\Local\Temp\tmp41A8.tmp"
2⤵
- Creates scheduled task(s)
PID:3048

C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\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:1212

C:\Windows\SysWOW64\schtasks.exe
"schtasks.exe" /create /f /tn "WAN Service" /xml "C:\Users\Admin\AppData\Local\Temp\tmp4581.tmp"
3⤵
- Creates scheduled task(s)
PID:3068

C:\Windows\SysWOW64\schtasks.exe
"schtasks.exe" /create /f /tn "WAN Service Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmp461E.tmp"
3⤵
- Creates scheduled task(s)
PID:872

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scheduled Task

T1053

Persistence

Registry Run Keys / Startup Folder

T1060

Scheduled Task

T1053

Privilege Escalation

Scheduled Task

T1053

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmp41A8.tmp
MD5
694ae12db9e04973f7d05b2b6c7eb0b8

SHA1
e41883b026d705d72d1fd2d529fe94cee3e3c058

SHA256
74ad24905beb0dee54b4bcd028d20a516edae8bb8a1fab2e7ff3368165fa818f

SHA512
c156473d83823f998e976ef87697f8b71f7540ff0aadfc0e3be3ae22ca5f3fd07983c31dec52f3d54c7763f52470dc7f70f87916169c1f4aee5b907a483393d0

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp4581.tmp
MD5
8cad1b41587ced0f1e74396794f31d58

SHA1
11054bf74fcf5e8e412768035e4dae43aa7b710f

SHA256
3086d914f6b23268f8a12cb1a05516cd5465c2577e1d1e449f1b45c8e5e8f83c

SHA512
99c2ef89029de51a866df932841684b7fc912df21e10e2dd0d09e400203bbdc6cba6319a31780b7bf8b286d2cea8ea3fc7d084348bf2f002ab4f5a34218ccbef

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp461E.tmp
MD5
9f0deb7cf87b4ae4efde9cc98ff481db

SHA1
760265641ce176e555c64bedb494f6f75fd0bd27

SHA256
a57110ccf892c8ca9c9b28b2608f4d37a8b5df1bfcf1411e7c62b500e82fabda

SHA512
6517829d9a09df437a340485bb87183c7a80135a76296308120e0ab385f5ffa7369a2ace9655ffaf1c594869cc6a20015520b6b0c681217b641b3c58127a29de

Download Submit
memory/872-148-0x0000000000000000-mapping.dmp

Download
memory/1212-151-0x00000000056E0000-0x00000000056EA000-memory.dmp

Filesize
40KB

Download
memory/1212-154-0x0000000006410000-0x000000000642E000-memory.dmp

Filesize
120KB

Download
memory/1212-408-0x0000000006E40000-0x0000000006EA6000-memory.dmp

Filesize
408KB

Download
memory/1212-263-0x0000000006C30000-0x0000000006C5E000-memory.dmp

Filesize
184KB

Download
memory/1212-264-0x0000000006C70000-0x0000000006C84000-memory.dmp

Filesize
80KB

Download
memory/1212-262-0x0000000006C20000-0x0000000006C2E000-memory.dmp

Filesize
56KB

Download
memory/1212-261-0x0000000006C00000-0x0000000006C14000-memory.dmp

Filesize
80KB

Download
memory/1212-257-0x0000000006BE0000-0x0000000006BF4000-memory.dmp

Filesize
80KB

Download
memory/1212-260-0x0000000006BF0000-0x0000000006C00000-memory.dmp

Filesize
64KB

Download
memory/1212-256-0x0000000006BD0000-0x0000000006BDC000-memory.dmp

Filesize
48KB

Download
memory/1212-155-0x0000000006530000-0x000000000653A000-memory.dmp

Filesize
40KB

Download
memory/1212-255-0x0000000006BC0000-0x0000000006BCE000-memory.dmp

Filesize
56KB

Download
memory/1212-254-0x0000000006BB0000-0x0000000006BC2000-memory.dmp

Filesize
72KB

Download
memory/1212-253-0x0000000006BA0000-0x0000000006BAE000-memory.dmp

Filesize
56KB

Download
memory/1212-133-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1212-134-0x000000000041E792-mapping.dmp

Download
memory/1212-136-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1212-135-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1212-252-0x0000000006650000-0x000000000666A000-memory.dmp

Filesize
104KB

Download
memory/1212-139-0x0000000005400000-0x0000000005492000-memory.dmp

Filesize
584KB

Download
memory/1212-137-0x0000000005860000-0x0000000005D5E000-memory.dmp

Filesize
5.0MB

Download
memory/1212-140-0x00000000054A0000-0x000000000553C000-memory.dmp

Filesize
624KB

Download
memory/1212-251-0x0000000006640000-0x0000000006652000-memory.dmp

Filesize
72KB

Download
memory/1212-142-0x0000000005390000-0x000000000539A000-memory.dmp

Filesize
40KB

Download
memory/1212-156-0x0000000005360000-0x000000000585E000-memory.dmp

Filesize
5.0MB

Download
memory/1212-149-0x0000000005360000-0x000000000585E000-memory.dmp

Filesize
5.0MB

Download
memory/2764-124-0x0000000008AF0000-0x0000000008B5C000-memory.dmp

Filesize
432KB

Download
memory/2764-118-0x00000000050A0000-0x0000000005132000-memory.dmp

Filesize
584KB

Download
memory/2764-121-0x0000000005000000-0x0000000005092000-memory.dmp

Filesize
584KB

Download
memory/2764-116-0x00000000007B0000-0x0000000000842000-memory.dmp

Filesize
584KB

Download
memory/2764-122-0x0000000008690000-0x000000000869E000-memory.dmp

Filesize
56KB

Download
memory/2764-115-0x00000000007B0000-0x0000000000842000-memory.dmp

Filesize
584KB

Download
memory/2764-117-0x00000000056C0000-0x0000000005BBE000-memory.dmp

Filesize
5.0MB

Download
memory/2764-120-0x0000000005360000-0x00000000053FC000-memory.dmp

Filesize
624KB

Download
memory/2764-119-0x0000000005090000-0x000000000509A000-memory.dmp

Filesize
40KB

Download
memory/2764-123-0x00000000086B0000-0x00000000086FB000-memory.dmp

Filesize
300KB

Download
memory/3048-126-0x0000000000000000-mapping.dmp

Download
memory/3068-146-0x0000000000000000-mapping.dmp

Download
memory/4052-173-0x00000000087B0000-0x0000000008826000-memory.dmp

Filesize
472KB

Download
memory/4052-141-0x0000000007470000-0x0000000007492000-memory.dmp

Filesize
136KB

Download
memory/4052-166-0x0000000007800000-0x0000000007E28000-memory.dmp

Filesize
6.2MB

Download
memory/4052-167-0x0000000009800000-0x0000000009833000-memory.dmp

Filesize
204KB

Download
memory/4052-168-0x0000000009800000-0x0000000009833000-memory.dmp

Filesize
204KB

Download
memory/4052-170-0x0000000007710000-0x0000000007776000-memory.dmp

Filesize
408KB

Download
memory/4052-171-0x0000000008010000-0x0000000008076000-memory.dmp

Filesize
408KB

Download
memory/4052-169-0x0000000007470000-0x0000000007492000-memory.dmp

Filesize
136KB

Download
memory/4052-172-0x0000000008490000-0x00000000084DB000-memory.dmp

Filesize
300KB

Download
memory/4052-145-0x0000000008080000-0x00000000083D0000-memory.dmp

Filesize
3.3MB

Download
memory/4052-174-0x00000000097C0000-0x00000000097DE000-memory.dmp

Filesize
120KB

Download
memory/4052-175-0x000000007F140000-0x000000007F141000-memory.dmp

Filesize
4KB

Download
memory/4052-180-0x0000000009930000-0x00000000099D5000-memory.dmp

Filesize
660KB

Download
memory/4052-181-0x0000000009B00000-0x0000000009B94000-memory.dmp

Filesize
592KB

Download
memory/4052-250-0x00000000071C3000-0x00000000071C4000-memory.dmp

Filesize
4KB

Download
memory/4052-158-0x00000000031D0000-0x00000000031D1000-memory.dmp

Filesize
4KB

Download
memory/4052-138-0x0000000007800000-0x0000000007E28000-memory.dmp

Filesize
6.2MB

Download
memory/4052-132-0x00000000071C2000-0x00000000071C3000-memory.dmp

Filesize
4KB

Download
memory/4052-131-0x00000000071C0000-0x00000000071C1000-memory.dmp

Filesize
4KB

Download
memory/4052-130-0x0000000004C50000-0x0000000004C86000-memory.dmp

Filesize
216KB

Download
memory/4052-128-0x00000000031D0000-0x00000000031D1000-memory.dmp

Filesize
4KB

Download
memory/4052-127-0x00000000031D0000-0x00000000031D1000-memory.dmp

Filesize
4KB

Download
memory/4052-157-0x00000000087B0000-0x0000000008826000-memory.dmp

Filesize
472KB

Download
memory/4052-125-0x0000000000000000-mapping.dmp

Download
memory/4052-153-0x0000000008490000-0x00000000084DB000-memory.dmp

Filesize
300KB

Download
memory/4052-143-0x0000000007710000-0x0000000007776000-memory.dmp

Filesize
408KB

Download
memory/4052-152-0x0000000007E50000-0x0000000007E6C000-memory.dmp

Filesize
112KB

Download
memory/4052-387-0x0000000009A90000-0x0000000009AAA000-memory.dmp

Filesize
104KB

Download
memory/4052-392-0x0000000009A90000-0x0000000009AAA000-memory.dmp

Filesize
104KB

Download
memory/4052-393-0x0000000009A80000-0x0000000009A88000-memory.dmp

Filesize
32KB

Download
memory/4052-398-0x0000000009A80000-0x0000000009A88000-memory.dmp

Filesize
32KB

Download
memory/4052-144-0x0000000008010000-0x0000000008076000-memory.dmp

Filesize
408KB

Download