nanocore | 5212f4c6202482808c308a1e70b913a6b25d84136b87dfc5a25e94d44fd19c50

General

Target

rfq.exe
Size

1.3MB
MD5

d111f91326f17b3c438f112ef37f61c4
SHA1

1571a7e954f971c956fcdd9c2e5547f7305e7359
SHA256

1064f65ca25e0759b7cebcd985a6243c98ccd08317df9f87dd1c8b88c29e2a9a
SHA512

1ebbda0af40d55da7375a5ec698c0aaa330e04be7727a76e2a68f19328a66e2d89fc743722c4740e2401c0918e78bbce7aebf8233916d78a340334322ff57d24

Score

10^/10

nanocore keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

185.244.29.132:1985

127.0.0.1:1985

Mutex

f61bbd75-d4b8-4ea7-be06-9084282264d7

Attributes

activate_away_mode
true
backup_connection_host
127.0.0.1
backup_dns_server
8.8.4.4
buffer_size
65535
build_time
2020-02-21T01:06:21.461976936Z
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
1985
default_group
Scarface
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
f61bbd75-d4b8-4ea7-be06-9084282264d7
mutex_timeout
5000
prevent_system_sleep
false
primary_connection_host
185.244.29.132
primary_dns_server
8.8.8.8
request_elevation
true
restart_delay
5000
run_delay
0
run_on_startup
false
set_critical_process
false
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
Drops startup file 1 IoCs

Processes:

rfq.exe

description ioc process

File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\odbcconf.url rfq.exe

description	ioc	process
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\odbcconf.url	rfq.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

MSBuild.exe

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

Suspicious use of SetThreadContext 1 IoCs

Processes:

rfq.exe

description pid process target process

PID 992 set thread context of 4192 992 rfq.exe MSBuild.exe

description	pid	process	target process
PID 992 set thread context of 4192	992	rfq.exe	MSBuild.exe

Drops file in Program Files directory 2 IoCs

Processes:

MSBuild.exe

description	ioc	process
File created	C:\Program Files (x86)\TCP Service\tcpsvc.exe	MSBuild.exe
File opened for modification	C:\Program Files (x86)\TCP Service\tcpsvc.exe	MSBuild.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

4252 schtasks.exe
4320 schtasks.exe

pid	process
4252	schtasks.exe
4320	schtasks.exe

Suspicious behavior: EnumeratesProcesses 31 IoCs

Processes:

MSBuild.exerfq.exe

pid	process
4192	MSBuild.exe
4192	MSBuild.exe
4192	MSBuild.exe
992	rfq.exe
992	rfq.exe
992	rfq.exe
992	rfq.exe
992	rfq.exe
992	rfq.exe
992	rfq.exe
992	rfq.exe
992	rfq.exe
992	rfq.exe
992	rfq.exe
992	rfq.exe
992	rfq.exe
992	rfq.exe
992	rfq.exe
992	rfq.exe
992	rfq.exe
992	rfq.exe
992	rfq.exe
992	rfq.exe
992	rfq.exe
992	rfq.exe
992	rfq.exe
992	rfq.exe
992	rfq.exe
992	rfq.exe
992	rfq.exe
992	rfq.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

MSBuild.exe

pid process

4192 MSBuild.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

MSBuild.exe

description pid process

Token: SeDebugPrivilege 4192 MSBuild.exe
Token: SeDebugPrivilege 4192 MSBuild.exe
Suspicious use of FindShellTrayWindow 3 IoCs

Processes:

rfq.exe

pid process

992 rfq.exe
992 rfq.exe
992 rfq.exe
Suspicious use of SendNotifyMessage 3 IoCs

Processes:

rfq.exe

pid process

992 rfq.exe
992 rfq.exe
992 rfq.exe

description	pid	process
Token: SeDebugPrivilege	4192	MSBuild.exe
Token: SeDebugPrivilege	4192	MSBuild.exe

pid	process
992	rfq.exe
992	rfq.exe
992	rfq.exe

pid	process
992	rfq.exe
992	rfq.exe
992	rfq.exe

Suspicious use of WriteProcessMemory 11 IoCs

Processes:

rfq.exeMSBuild.exe

description	pid	process	target process
PID 992 wrote to memory of 4192	992	rfq.exe	MSBuild.exe
PID 992 wrote to memory of 4192	992	rfq.exe	MSBuild.exe
PID 992 wrote to memory of 4192	992	rfq.exe	MSBuild.exe
PID 992 wrote to memory of 4192	992	rfq.exe	MSBuild.exe
PID 992 wrote to memory of 4192	992	rfq.exe	MSBuild.exe
PID 4192 wrote to memory of 4252	4192	MSBuild.exe	schtasks.exe
PID 4192 wrote to memory of 4252	4192	MSBuild.exe	schtasks.exe
PID 4192 wrote to memory of 4252	4192	MSBuild.exe	schtasks.exe
PID 4192 wrote to memory of 4320	4192	MSBuild.exe	schtasks.exe
PID 4192 wrote to memory of 4320	4192	MSBuild.exe	schtasks.exe
PID 4192 wrote to memory of 4320	4192	MSBuild.exe	schtasks.exe

C:\Users\Admin\AppData\Local\Temp\rfq.exe
"C:\Users\Admin\AppData\Local\Temp\rfq.exe"
1⤵
- Drops startup file
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:992

C:\Windows\Microsoft.NET\Framework\v2.0.50727\MSBuild.exe
"C:\\\\Windows\\\\Microsoft.NET\\\\Framework\\\\v2.0.50727\\\\MSBuild.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:4192

C:\Windows\SysWOW64\schtasks.exe
"schtasks.exe" /create /f /tn "TCP Service" /xml "C:\Users\Admin\AppData\Local\Temp\tmp9138.tmp"
3⤵
- Creates scheduled task(s)
PID:4252

C:\Windows\SysWOW64\schtasks.exe
"schtasks.exe" /create /f /tn "TCP Service Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmp92DF.tmp"
3⤵
- Creates scheduled task(s)
PID:4320

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

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmp9138.tmp
Filesize
1KB

MD5
ae766004c0d8792953bafffe8f6a2e3b

SHA1
14b12f27543a401e2fe0af8052e116cab0032426

SHA256
1abdd9b6a6b84e4ba1af1282dc84ce276c59ba253f4c4af05fea498a4fd99540

SHA512
e530da4a5d4336fc37838d0e93b5eb3804b9c489c71f6954a47fc81a4c655bb72ec493e109cf96e6e3617d7623ac80697ad3bbd5ffc6281bafc8b34dca5e6567

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp92DF.tmp
Filesize
1KB

MD5
9db6095f31f8b4ae8173fe11424a8dfe

SHA1
4b0655ae95def24a41710ca137649d93bfa49407

SHA256
9911b4513e44521c90c020ddcddea1ddc58095055a72ec638b593bf9ee23aa72

SHA512
5bee977264545a30a2d53e674f54a4066d4529dc9162d46911b9cac957052cdc1ea7c8d60f9c57d3f33db6cb964b1e6bb2347d0e0e2af0a32ac98938c02ffc1c

Download Submit
memory/992-136-0x0000000001630000-0x0000000001696000-memory.dmp

Filesize
408KB

Download
memory/992-137-0x0000000004570000-0x00000000045D6000-memory.dmp

Filesize
408KB

Download
memory/4192-130-0x0000000000000000-mapping.dmp

Download
memory/4192-131-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/4192-139-0x00000000745C0000-0x0000000074B71000-memory.dmp

Filesize
5.7MB

Download
memory/4252-138-0x0000000000000000-mapping.dmp

Download
memory/4320-141-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads