nanocore | 8fdfc8e04add1bbef6890ef7deb26d1ec3794d604ee6edc0e98822dcdad752d4

General

Target

Payment.exe
Size

579KB
MD5

93d766e31ea830782d463f15f95b2fd8
SHA1

5a26a4c104852c0e7d512477fe09cbab71689a72
SHA256

8fdfc8e04add1bbef6890ef7deb26d1ec3794d604ee6edc0e98822dcdad752d4
SHA512

159de675ebb705848a7e49c0867286429d4f52180239979c4e3b3552407d1074f1a096a5c37cf6ecc6ecc624fda68c83319119a05013658a8c4869e7a6cae769

Score

10^/10

nanocore evasion keylogger persistence spyware stealer suricata trojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

brewsterchristophe.hopto.org:5899

Mutex

fa27134d-a29d-45ea-b9f2-05cdb2457ef3

Attributes

activate_away_mode
true
backup_connection_host
brewsterchristophe.hopto.org
backup_dns_server
8.8.4.4
buffer_size
65535
build_time
2022-04-12T01:55:03.778267936Z
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
5899
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
fa27134d-a29d-45ea-b9f2-05cdb2457ef3
mutex_timeout
5000
prevent_system_sleep
false
primary_connection_host
brewsterchristophe.hopto.org
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
suricata: ET MALWARE Possible NanoCore C2 60B
suricata: ET MALWARE Possible NanoCore C2 60B
suricata

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

Payment.exe

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

Checks whether UAC is enabled 1 TTPs 1 IoCs
evasion trojan

System Information Discovery
T1082

Processes:

Payment.exe

description ioc process

Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA Payment.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

Payment.exe

description pid process target process

PID 1972 set thread context of 336 1972 Payment.exe Payment.exe

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

description	pid	process	target process
PID 1972 set thread context of 336	1972	Payment.exe	Payment.exe

Drops file in Program Files directory 2 IoCs

Processes:

Payment.exe

description	ioc	process
File created	C:\Program Files (x86)\DSL Service\dslsv.exe	Payment.exe
File opened for modification	C:\Program Files (x86)\DSL Service\dslsv.exe	Payment.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

752 schtasks.exe
1724 schtasks.exe
Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

Payment.exe

pid process

336 Payment.exe
336 Payment.exe
336 Payment.exe
336 Payment.exe
Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

Payment.exe

pid process

336 Payment.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

Payment.exe

description pid process

Token: SeDebugPrivilege 336 Payment.exe

pid	process
752	schtasks.exe
1724	schtasks.exe

pid	process
336	Payment.exe
336	Payment.exe
336	Payment.exe
336	Payment.exe

pid	process
336	Payment.exe

description	pid	process
Token: SeDebugPrivilege	336	Payment.exe

Suspicious use of WriteProcessMemory 17 IoCs

Processes:

Payment.exePayment.exe

description	pid	process	target process
PID 1972 wrote to memory of 336	1972	Payment.exe	Payment.exe
PID 1972 wrote to memory of 336	1972	Payment.exe	Payment.exe
PID 1972 wrote to memory of 336	1972	Payment.exe	Payment.exe
PID 1972 wrote to memory of 336	1972	Payment.exe	Payment.exe
PID 1972 wrote to memory of 336	1972	Payment.exe	Payment.exe
PID 1972 wrote to memory of 336	1972	Payment.exe	Payment.exe
PID 1972 wrote to memory of 336	1972	Payment.exe	Payment.exe
PID 1972 wrote to memory of 336	1972	Payment.exe	Payment.exe
PID 1972 wrote to memory of 336	1972	Payment.exe	Payment.exe
PID 336 wrote to memory of 752	336	Payment.exe	schtasks.exe
PID 336 wrote to memory of 752	336	Payment.exe	schtasks.exe
PID 336 wrote to memory of 752	336	Payment.exe	schtasks.exe
PID 336 wrote to memory of 752	336	Payment.exe	schtasks.exe
PID 336 wrote to memory of 1724	336	Payment.exe	schtasks.exe
PID 336 wrote to memory of 1724	336	Payment.exe	schtasks.exe
PID 336 wrote to memory of 1724	336	Payment.exe	schtasks.exe
PID 336 wrote to memory of 1724	336	Payment.exe	schtasks.exe

C:\Users\Admin\AppData\Local\Temp\Payment.exe
"C:\Users\Admin\AppData\Local\Temp\Payment.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1972

C:\Users\Admin\AppData\Local\Temp\Payment.exe
"C:\Users\Admin\AppData\Local\Temp\Payment.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:336

C:\Windows\SysWOW64\schtasks.exe
"schtasks.exe" /create /f /tn "DSL Service" /xml "C:\Users\Admin\AppData\Local\Temp\tmp513D.tmp"
3⤵
- Creates scheduled task(s)
PID:752

C:\Windows\SysWOW64\schtasks.exe
"schtasks.exe" /create /f /tn "DSL Service Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmp5582.tmp"
3⤵
- Creates scheduled task(s)
PID:1724

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

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmp513D.tmp
Filesize
1KB

MD5
5905de8dea2b27439bbd2530628ec36b

SHA1
cef4f6ffc6cfd72ccb626561fd398b84bff244f8

SHA256
a8df7ee1260fb3ab056ff2a64c3158ac751a523fe761f398a07ba063c1bb9368

SHA512
4e4ebb9537e72c8a09f2bcf3e67a6f5970c54d2982c325437763c9ba0edaf163d8d4657e740925b8f9df1c65cb266818e323a2c5a69e505c629ad15036c7726b

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp5582.tmp
Filesize
1KB

MD5
afb71a33ece3758f782f052bbe5da94f

SHA1
e69b9070ff52f81fdf01a40f775d021e4b4e71e4

SHA256
abd73bfca8458750ee751d4c6c106d54dcf0969592f476acc64ab0d7f2bb1978

SHA512
22c45992ca358ca9d4605ac426b65903b11b27db1b9c608739245dc412aa256d0908566626b3cfdafb32fca0809bf46c8824ab98cea7b7662216c915e6ef013f

Download Submit
memory/336-62-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/336-90-0x0000000000CE0000-0x0000000000CEE000-memory.dmp

Filesize
56KB

Download
memory/336-91-0x0000000004710000-0x000000000473E000-memory.dmp

Filesize
184KB

Download
memory/336-89-0x0000000000CD0000-0x0000000000CE4000-memory.dmp

Filesize
80KB

Download
memory/336-88-0x0000000000CC0000-0x0000000000CD0000-memory.dmp

Filesize
64KB

Download
memory/336-61-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/336-87-0x0000000000B90000-0x0000000000BA4000-memory.dmp

Filesize
80KB

Download
memory/336-64-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/336-65-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/336-67-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/336-68-0x000000000041E792-mapping.dmp

Download
memory/336-70-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/336-72-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/336-86-0x0000000000B80000-0x0000000000B8C000-memory.dmp

Filesize
48KB

Download
memory/336-92-0x0000000000E00000-0x0000000000E14000-memory.dmp

Filesize
80KB

Download
memory/336-85-0x0000000000B70000-0x0000000000B7E000-memory.dmp

Filesize
56KB

Download
memory/336-84-0x0000000000B20000-0x0000000000B32000-memory.dmp

Filesize
72KB

Download
memory/336-78-0x0000000000440000-0x000000000044A000-memory.dmp

Filesize
40KB

Download
memory/336-79-0x0000000000590000-0x00000000005AE000-memory.dmp

Filesize
120KB

Download
memory/336-80-0x00000000005B0000-0x00000000005BA000-memory.dmp

Filesize
40KB

Download
memory/336-81-0x0000000000620000-0x0000000000632000-memory.dmp

Filesize
72KB

Download
memory/336-82-0x0000000000830000-0x000000000084A000-memory.dmp

Filesize
104KB

Download
memory/336-83-0x0000000000680000-0x000000000068E000-memory.dmp

Filesize
56KB

Download
memory/752-74-0x0000000000000000-mapping.dmp

Download
memory/1724-76-0x0000000000000000-mapping.dmp

Download
memory/1972-54-0x0000000000E50000-0x0000000000EE8000-memory.dmp

Filesize
608KB

Download
memory/1972-57-0x0000000000490000-0x00000000004A6000-memory.dmp

Filesize
88KB

Download
memory/1972-55-0x0000000075F21000-0x0000000075F23000-memory.dmp

Filesize
8KB

Download
memory/1972-60-0x0000000000BE0000-0x0000000000C1A000-memory.dmp

Filesize
232KB

Download
memory/1972-59-0x0000000005CC0000-0x0000000005D42000-memory.dmp

Filesize
520KB

Download
memory/1972-58-0x00000000004F0000-0x00000000004FA000-memory.dmp

Filesize
40KB

Download
memory/1972-56-0x0000000000470000-0x0000000000486000-memory.dmp

Filesize
88KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads