nanocore | d09ed1437134f7e5c71ee4877e6d030c2750b6e1873fe6afb0f82b988c591b44

General

Target

Dintec Order PDF.exe
Size

628KB
MD5

98e3c2ac1efdd997b05a1fee872630ec
SHA1

d3ce076af7b45e1f11aac5e3a1c984951c7b92ba
SHA256

d09ed1437134f7e5c71ee4877e6d030c2750b6e1873fe6afb0f82b988c591b44
SHA512

f0c9cc82f29d547216672fc78c19caaa23d432c63760433a17c86a4d484a49b879733659cea68ae19feeb1841a803c8bee04cd96064c1cb3ae273e7299be7ea7

Score

10^/10

nanocore evasion keylogger persistence ransomware spyware stealer trojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

mnvh54254.ddns.net:6653

Mutex

ffdfcbd2-3989-4236-a47d-b9533fb19ad2

Attributes

activate_away_mode
true
backup_connection_host
mnvh54254.ddns.net
backup_dns_server
8.8.4.4
buffer_size
65535
build_time
2020-10-23T12:25:44.065726836Z
bypass_user_account_control
true
bypass_user_account_control_data
clear_access_control
false
clear_zone_identifier
true
connect_delay
4000
connection_port
6653
default_group
AMMAGEDOM001
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
ffdfcbd2-3989-4236-a47d-b9533fb19ad2
mutex_timeout
5000
prevent_system_sleep
true
primary_connection_host
mnvh54254.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
Executes dropped EXE 2 IoCs

Processes:

a.exeInstallUtil.exe

pid process

4040 a.exe
1764 InstallUtil.exe
Drops startup file 1 IoCs

Processes:

Dintec Order PDF.exe

description ioc process

File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\a.lnk Dintec Order PDF.exe

pid	process
4040	a.exe
1764	InstallUtil.exe

description	ioc	process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\a.lnk	Dintec Order PDF.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

InstallUtil.exe

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

Checks whether UAC is enabled 1 TTPs 1 IoCs
evasion trojan

System Information Discovery
T1082

Processes:

InstallUtil.exe

description ioc process

Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA InstallUtil.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
ransomware

System Information Discovery
T1082
Suspicious use of SetThreadContext 1 IoCs

Processes:

a.exe

description pid process target process

PID 4040 set thread context of 1764 4040 a.exe InstallUtil.exe

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

description	pid	process	target process
PID 4040 set thread context of 1764	4040	a.exe	InstallUtil.exe

Drops file in Program Files directory 2 IoCs

Processes:

InstallUtil.exe

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

Suspicious behavior: EnumeratesProcesses 22 IoCs

Processes:

Dintec Order PDF.exea.exeInstallUtil.exe

pid	process
4700	Dintec Order PDF.exe
4700	Dintec Order PDF.exe
4700	Dintec Order PDF.exe
4700	Dintec Order PDF.exe
4700	Dintec Order PDF.exe
4700	Dintec Order PDF.exe
4700	Dintec Order PDF.exe
4700	Dintec Order PDF.exe
4700	Dintec Order PDF.exe
4700	Dintec Order PDF.exe
4700	Dintec Order PDF.exe
4700	Dintec Order PDF.exe
4700	Dintec Order PDF.exe
4700	Dintec Order PDF.exe
4700	Dintec Order PDF.exe
4700	Dintec Order PDF.exe
4700	Dintec Order PDF.exe
4040	a.exe
4040	a.exe
1764	InstallUtil.exe
1764	InstallUtil.exe
1764	InstallUtil.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

InstallUtil.exe

pid process

1764 InstallUtil.exe
Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

Dintec Order PDF.exea.exeInstallUtil.exe

description pid process

Token: SeDebugPrivilege 4700 Dintec Order PDF.exe
Token: SeDebugPrivilege 4040 a.exe
Token: SeDebugPrivilege 1764 InstallUtil.exe

pid	process
1764	InstallUtil.exe

description	pid	process
Token: SeDebugPrivilege	4700	Dintec Order PDF.exe
Token: SeDebugPrivilege	4040	a.exe
Token: SeDebugPrivilege	1764	InstallUtil.exe

Suspicious use of WriteProcessMemory 11 IoCs

Processes:

Dintec Order PDF.exea.exe

description	pid	process	target process
PID 4700 wrote to memory of 4040	4700	Dintec Order PDF.exe	a.exe
PID 4700 wrote to memory of 4040	4700	Dintec Order PDF.exe	a.exe
PID 4700 wrote to memory of 4040	4700	Dintec Order PDF.exe	a.exe
PID 4040 wrote to memory of 1764	4040	a.exe	InstallUtil.exe
PID 4040 wrote to memory of 1764	4040	a.exe	InstallUtil.exe
PID 4040 wrote to memory of 1764	4040	a.exe	InstallUtil.exe
PID 4040 wrote to memory of 1764	4040	a.exe	InstallUtil.exe
PID 4040 wrote to memory of 1764	4040	a.exe	InstallUtil.exe
PID 4040 wrote to memory of 1764	4040	a.exe	InstallUtil.exe
PID 4040 wrote to memory of 1764	4040	a.exe	InstallUtil.exe
PID 4040 wrote to memory of 1764	4040	a.exe	InstallUtil.exe

C:\Users\Admin\AppData\Local\Temp\Dintec Order PDF.exe
"C:\Users\Admin\AppData\Local\Temp\Dintec Order PDF.exe"
1⤵
- Drops startup file
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4700

C:\Users\Admin\AppData\Roaming\a.exe
"C:\Users\Admin\AppData\Roaming\a.exe"
2⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4040

C:\Users\Admin\AppData\Local\Temp\InstallUtil.exe
"C:\Users\Admin\AppData\Local\Temp\InstallUtil.exe"
3⤵
- Executes dropped EXE
- 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
PID:1764

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

System Information Discovery

2

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\InstallUtil.exe
MD5
91c9ae9c9a17a9db5e08b120e668c74c

SHA1
50770954c1ceb0bb6f1d5d3f2de2a0a065773723

SHA256
e56a7e5d3ab9675555e2897fc3faa2dd9265008a4967a7d54030ab8184d2d38f

SHA512
ca504af192e3318359d4742a2ef26ae1b5d040a4f9942782e02549a310158d5d5dbf919b4c748c31ee609d2046bd23ee0c22712891c86ae4a1e3a58c6e67647e

Download Submit
C:\Users\Admin\AppData\Local\Temp\InstallUtil.exe
MD5
91c9ae9c9a17a9db5e08b120e668c74c

SHA1
50770954c1ceb0bb6f1d5d3f2de2a0a065773723

SHA256
e56a7e5d3ab9675555e2897fc3faa2dd9265008a4967a7d54030ab8184d2d38f

SHA512
ca504af192e3318359d4742a2ef26ae1b5d040a4f9942782e02549a310158d5d5dbf919b4c748c31ee609d2046bd23ee0c22712891c86ae4a1e3a58c6e67647e

Download Submit
C:\Users\Admin\AppData\Roaming\a.exe
MD5
98e3c2ac1efdd997b05a1fee872630ec

SHA1
d3ce076af7b45e1f11aac5e3a1c984951c7b92ba

SHA256
d09ed1437134f7e5c71ee4877e6d030c2750b6e1873fe6afb0f82b988c591b44

SHA512
f0c9cc82f29d547216672fc78c19caaa23d432c63760433a17c86a4d484a49b879733659cea68ae19feeb1841a803c8bee04cd96064c1cb3ae273e7299be7ea7

Download Submit
C:\Users\Admin\AppData\Roaming\a.exe
MD5
98e3c2ac1efdd997b05a1fee872630ec

SHA1
d3ce076af7b45e1f11aac5e3a1c984951c7b92ba

SHA256
d09ed1437134f7e5c71ee4877e6d030c2750b6e1873fe6afb0f82b988c591b44

SHA512
f0c9cc82f29d547216672fc78c19caaa23d432c63760433a17c86a4d484a49b879733659cea68ae19feeb1841a803c8bee04cd96064c1cb3ae273e7299be7ea7

Download Submit
memory/1764-39-0x0000000005130000-0x0000000005149000-memory.dmp

Filesize
100KB

Download
memory/1764-37-0x0000000004C00000-0x0000000004C01000-memory.dmp

Filesize
4KB

Download
memory/1764-34-0x0000000005150000-0x0000000005151000-memory.dmp

Filesize
4KB

Download
memory/1764-32-0x0000000000770000-0x00000000007A8000-memory.dmp

Filesize
224KB

Download
memory/1764-31-0x0000000073CE0000-0x00000000743CE000-memory.dmp

Filesize
6.9MB

Download
memory/1764-38-0x0000000005020000-0x0000000005025000-memory.dmp

Filesize
20KB

Download
memory/1764-40-0x00000000059E0000-0x00000000059E3000-memory.dmp

Filesize
12KB

Download
memory/1764-41-0x0000000004EA0000-0x0000000004EA1000-memory.dmp

Filesize
4KB

Download
memory/1764-28-0x000000000041E792-mapping.dmp

Download
memory/4040-23-0x0000000004CE0000-0x0000000004CE1000-memory.dmp

Filesize
4KB

Download
memory/4040-12-0x0000000000000000-mapping.dmp

Download
memory/4040-26-0x000000000BE70000-0x000000000BE71000-memory.dmp

Filesize
4KB

Download
memory/4040-24-0x0000000004CE1000-0x0000000004CE2000-memory.dmp

Filesize
4KB

Download
memory/4040-25-0x00000000089A0000-0x00000000089AB000-memory.dmp

Filesize
44KB

Download
memory/4040-15-0x0000000073CE0000-0x00000000743CE000-memory.dmp

Filesize
6.9MB

Download
memory/4700-11-0x0000000005081000-0x0000000005082000-memory.dmp

Filesize
4KB

Download
memory/4700-2-0x0000000073CE0000-0x00000000743CE000-memory.dmp

Filesize
6.9MB

Download
memory/4700-10-0x0000000005080000-0x0000000005081000-memory.dmp

Filesize
4KB

Download
memory/4700-9-0x00000000083F0000-0x00000000083F1000-memory.dmp

Filesize
4KB

Download
memory/4700-8-0x0000000002800000-0x0000000002801000-memory.dmp

Filesize
4KB

Download
memory/4700-7-0x0000000005AB0000-0x0000000005ACE000-memory.dmp

Filesize
120KB

Download
memory/4700-5-0x0000000004F00000-0x0000000004F01000-memory.dmp

Filesize
4KB

Download
memory/4700-3-0x0000000000500000-0x0000000000501000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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