nanocore | e4d193d060a99ffc9dfeeb843432b54ff639401982f596098497e52cc422b0db

Analysis

max time kernel
141s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20230915-en
resource tags

arch:x64arch:x86image:win10v2004-20230915-enlocale:en-usos:windows10-2004-x64system
submitted
18/09/2023, 07:16

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General

Target

Fatu6780000980.exe
Size

552KB
MD5

688e964feeb18ae69d6f9159e379a694
SHA1

fc97717ba926cd55e1dfff7a8e25036ba9f8785c
SHA256

e4d193d060a99ffc9dfeeb843432b54ff639401982f596098497e52cc422b0db
SHA512

31923d422662182e46070517295dfb006136e0d1e50c2ca054cc765f9f6901c926a46434a205cd1e7f9de1795a6032a47c7ac1d7fe53dd7bf19d1fcaea665e92
SSDEEP

12288:O7SMfMGuMFex9HNHfMGuMFexpBoh/9agvuDzyEJjFlPrjRZRf:CSMEGMSGMxetEJPrjR3

Score

10^/10

nanocore evasion keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

79.110.62.170:4445

Mutex

cb222388-60cd-45a6-86e9-345ab11492c9

Attributes

activate_away_mode
true
backup_connection_host
backup_dns_server
8.8.4.4
buffer_size
65535
build_time
2023-06-30T07:50:17.873975236Z
bypass_user_account_control
true
bypass_user_account_control_data
clear_access_control
true
clear_zone_identifier
false
connect_delay
4000
connection_port
4445
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
cb222388-60cd-45a6-86e9-345ab11492c9
mutex_timeout
5000
prevent_system_sleep
false
primary_connection_host
79.110.62.170
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

Drops startup file 2 IoCs

description	ioc	Process
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\.exe	Powershell.exe
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\.exe	Powershell.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\DHCP Subsystem = "C:\\Program Files (x86)\\DHCP Subsystem\\dhcpss.exe"	Fatu6780000980.exe

Checks whether UAC is enabled 1 TTPs 1 IoCs

evasion trojan

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	Fatu6780000980.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1612 set thread context of 4224	1612	Fatu6780000980.exe	88

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\DHCP Subsystem\dhcpss.exe	Fatu6780000980.exe
File opened for modification	C:\Program Files (x86)\DHCP Subsystem\dhcpss.exe	Fatu6780000980.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
1760	Powershell.exe
1760	Powershell.exe
4224	Fatu6780000980.exe
4224	Fatu6780000980.exe
4224	Fatu6780000980.exe
4224	Fatu6780000980.exe
4224	Fatu6780000980.exe
4224	Fatu6780000980.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
4224	Fatu6780000980.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1760	Powershell.exe
Token: SeDebugPrivilege	4224	Fatu6780000980.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 1612 wrote to memory of 1760	1612	Fatu6780000980.exe	86
PID 1612 wrote to memory of 1760	1612	Fatu6780000980.exe	86
PID 1612 wrote to memory of 1760	1612	Fatu6780000980.exe	86
PID 1612 wrote to memory of 4224	1612	Fatu6780000980.exe	88
PID 1612 wrote to memory of 4224	1612	Fatu6780000980.exe	88
PID 1612 wrote to memory of 4224	1612	Fatu6780000980.exe	88
PID 1612 wrote to memory of 4224	1612	Fatu6780000980.exe	88
PID 1612 wrote to memory of 4224	1612	Fatu6780000980.exe	88
PID 1612 wrote to memory of 4224	1612	Fatu6780000980.exe	88
PID 1612 wrote to memory of 4224	1612	Fatu6780000980.exe	88
PID 1612 wrote to memory of 4224	1612	Fatu6780000980.exe	88

C:\Users\Admin\AppData\Local\Temp\Fatu6780000980.exe
"C:\Users\Admin\AppData\Local\Temp\Fatu6780000980.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1612
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\Powershell.exe
  "Powershell.exe" -ExecutionPolicy Bypass -command Copy-Item 'C:\Users\Admin\AppData\Local\Temp\Fatu6780000980.exe' 'C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\.exe'
  2⤵
  - Drops startup file
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1760
- C:\Users\Admin\AppData\Local\Temp\Fatu6780000980.exe
  "C:\Users\Admin\AppData\Local\Temp\Fatu6780000980.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
  PID:4224

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\Fatu6780000980.exe.log

Filesize
706B

MD5
f8bcaf312de8591707436c1dcebba8e4

SHA1
a1269828e5f644601622f4a7a611aec8f2eda0b2

SHA256
f0f5a90777c70cdceea22bd66b33c1703a318acc45cb012d0b01585a1ac12b29

SHA512
3a714f5950584abbc94a27bbd4623bfc5acb1135c8c9fca4d74e70c8481b71ace7dbc1dfbf101dd07c76a050acfb4852f31dd57fc7ae196382336c5edc9e6413

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_3etypswa.kjr.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/1612-20-0x00000000051B0000-0x00000000051BA000-memory.dmp

Filesize
40KB

Download
memory/1612-1-0x0000000074B20000-0x00000000752D0000-memory.dmp

Filesize
7.7MB

Download
memory/1612-2-0x00000000050A0000-0x0000000005126000-memory.dmp

Filesize
536KB

Download
memory/1612-3-0x00000000057E0000-0x0000000005D84000-memory.dmp

Filesize
5.6MB

Download
memory/1612-4-0x0000000005230000-0x00000000052C2000-memory.dmp

Filesize
584KB

Download
memory/1612-5-0x0000000005370000-0x000000000540C000-memory.dmp

Filesize
624KB

Download
memory/1612-0-0x00000000006B0000-0x000000000073E000-memory.dmp

Filesize
568KB

Download
memory/1612-30-0x0000000074B20000-0x00000000752D0000-memory.dmp

Filesize
7.7MB

Download
memory/1612-19-0x0000000005220000-0x0000000005230000-memory.dmp

Filesize
64KB

Download
memory/1760-7-0x0000000074B20000-0x00000000752D0000-memory.dmp

Filesize
7.7MB

Download
memory/1760-9-0x0000000004A80000-0x0000000004A90000-memory.dmp

Filesize
64KB

Download
memory/1760-18-0x00000000059D0000-0x0000000005A36000-memory.dmp

Filesize
408KB

Download
memory/1760-11-0x0000000005070000-0x0000000005092000-memory.dmp

Filesize
136KB

Download
memory/1760-60-0x0000000074B20000-0x00000000752D0000-memory.dmp

Filesize
7.7MB

Download
memory/1760-10-0x0000000005100000-0x0000000005728000-memory.dmp

Filesize
6.2MB

Download
memory/1760-22-0x0000000005A40000-0x0000000005D94000-memory.dmp

Filesize
3.3MB

Download
memory/1760-12-0x0000000005960000-0x00000000059C6000-memory.dmp

Filesize
408KB

Download
memory/1760-56-0x00000000065A0000-0x00000000065C2000-memory.dmp

Filesize
136KB

Download
memory/1760-8-0x0000000004A80000-0x0000000004A90000-memory.dmp

Filesize
64KB

Download
memory/1760-6-0x0000000004A90000-0x0000000004AC6000-memory.dmp

Filesize
216KB

Download
memory/1760-54-0x00000000070E0000-0x0000000007176000-memory.dmp

Filesize
600KB

Download
memory/1760-32-0x0000000006060000-0x000000000607E000-memory.dmp

Filesize
120KB

Download
memory/1760-55-0x0000000006510000-0x000000000652A000-memory.dmp

Filesize
104KB

Download
memory/1760-34-0x0000000006180000-0x00000000061CC000-memory.dmp

Filesize
304KB

Download
memory/4224-31-0x00000000058B0000-0x00000000058C0000-memory.dmp

Filesize
64KB

Download
memory/4224-38-0x0000000005890000-0x00000000058AE000-memory.dmp

Filesize
120KB

Download
memory/4224-39-0x0000000006310000-0x000000000631A000-memory.dmp

Filesize
40KB

Download
memory/4224-42-0x0000000006B60000-0x0000000006B72000-memory.dmp

Filesize
72KB

Download
memory/4224-43-0x0000000006B70000-0x0000000006B8A000-memory.dmp

Filesize
104KB

Download
memory/4224-44-0x0000000006BA0000-0x0000000006BAE000-memory.dmp

Filesize
56KB

Download
memory/4224-45-0x0000000006BB0000-0x0000000006BC2000-memory.dmp

Filesize
72KB

Download
memory/4224-46-0x0000000006BC0000-0x0000000006BCC000-memory.dmp

Filesize
48KB

Download
memory/4224-47-0x0000000006BD0000-0x0000000006BDE000-memory.dmp

Filesize
56KB

Download
memory/4224-48-0x0000000006BE0000-0x0000000006BF4000-memory.dmp

Filesize
80KB

Download
memory/4224-49-0x0000000006BF0000-0x0000000006C00000-memory.dmp

Filesize
64KB

Download
memory/4224-53-0x0000000006C70000-0x0000000006C84000-memory.dmp

Filesize
80KB

Download
memory/4224-52-0x0000000006C40000-0x0000000006C6E000-memory.dmp

Filesize
184KB

Download
memory/4224-51-0x0000000006C30000-0x0000000006C3E000-memory.dmp

Filesize
56KB

Download
memory/4224-50-0x0000000006C10000-0x0000000006C24000-memory.dmp

Filesize
80KB

Download
memory/4224-37-0x0000000005880000-0x000000000588A000-memory.dmp

Filesize
40KB

Download
memory/4224-33-0x00000000055F0000-0x00000000055FA000-memory.dmp

Filesize
40KB

Download
memory/4224-29-0x0000000074B20000-0x00000000752D0000-memory.dmp

Filesize
7.7MB

Download
memory/4224-21-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/4224-62-0x0000000074B20000-0x00000000752D0000-memory.dmp

Filesize
7.7MB

Download
memory/4224-63-0x00000000058B0000-0x00000000058C0000-memory.dmp

Filesize
64KB

Download