nanocore | 35d212409544435a45ce577615da11f75cc4cf6dc56bce849651aede5c1ae437

General

Target

e0f6bbc12ebe2102cf3fcf74f9d690d9.exe
Size

697KB
MD5

e0f6bbc12ebe2102cf3fcf74f9d690d9
SHA1

203b28ec0fcb113bf1ac37ffba917b94cab9e85b
SHA256

35d212409544435a45ce577615da11f75cc4cf6dc56bce849651aede5c1ae437
SHA512

7e711a6a18d561244413b9ebcfba52ed353d8eea3ecd379a39038a172ed4a2b31e5ddead87d0a6d969a9edf7c3fe782852733a5a55862fd6ed2a164161fcadc6
SSDEEP

12288:ETy8p17iS/d348K13c//sqQonbTWPsUwmxEHr9b8GcH3uExo4Kiazs:EPpMS/d34S//LQonbTAsUwmWrV8GcHJe

Score

10^/10

nanocore keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

79.134.225.100:1985

127.0.0.1:1985

Mutex

b10f8b74-4448-4597-840b-1e44a5084bfc

Attributes

activate_away_mode
true
backup_connection_host
127.0.0.1
backup_dns_server
8.8.4.4
buffer_size
65535
build_time
2021-04-30T10:29:24.181451236Z
bypass_user_account_control
true
bypass_user_account_control_data
clear_access_control
false
clear_zone_identifier
false
connect_delay
4000
connection_port
1985
default_group
OBO
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
b10f8b74-4448-4597-840b-1e44a5084bfc
mutex_timeout
5000
prevent_system_sleep
true
primary_connection_host
79.134.225.100
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

CustAttr .NET packer 1 IoCs

Detects CustAttr .NET packer in memory.

Processes:

resource	yara_rule
behavioral2/memory/4936-7-0x0000000004FD0000-0x0000000004FE2000-memory.dmp	CustAttr

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

Processes:

e0f6bbc12ebe2102cf3fcf74f9d690d9.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-566096764-1992588923-1249862864-1000\Control Panel\International\Geo\Nation	e0f6bbc12ebe2102cf3fcf74f9d690d9.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

RegSvcs.exe

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

Suspicious use of SetThreadContext 1 IoCs

Processes:

e0f6bbc12ebe2102cf3fcf74f9d690d9.exe

description pid process target process

PID 4936 set thread context of 2460 4936 e0f6bbc12ebe2102cf3fcf74f9d690d9.exe RegSvcs.exe

description	pid	process	target process
PID 4936 set thread context of 2460	4936	e0f6bbc12ebe2102cf3fcf74f9d690d9.exe	RegSvcs.exe

Drops file in Program Files directory 2 IoCs

Processes:

RegSvcs.exe

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

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 9 IoCs

Processes:

e0f6bbc12ebe2102cf3fcf74f9d690d9.exepowershell.exeRegSvcs.exe

pid	process
4936	e0f6bbc12ebe2102cf3fcf74f9d690d9.exe
4936	e0f6bbc12ebe2102cf3fcf74f9d690d9.exe
4568	powershell.exe
4568	powershell.exe
2460	RegSvcs.exe
2460	RegSvcs.exe
2460	RegSvcs.exe
2460	RegSvcs.exe
4568	powershell.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

RegSvcs.exe

pid process

2460 RegSvcs.exe

pid	process
2460	RegSvcs.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

e0f6bbc12ebe2102cf3fcf74f9d690d9.exepowershell.exeRegSvcs.exe

description	pid	process
Token: SeDebugPrivilege	4936	e0f6bbc12ebe2102cf3fcf74f9d690d9.exe
Token: SeDebugPrivilege	4568	powershell.exe
Token: SeDebugPrivilege	2460	RegSvcs.exe

Suspicious use of WriteProcessMemory 11 IoCs

Processes:

e0f6bbc12ebe2102cf3fcf74f9d690d9.exe

description	pid	process	target process
PID 4936 wrote to memory of 4568	4936	e0f6bbc12ebe2102cf3fcf74f9d690d9.exe	powershell.exe
PID 4936 wrote to memory of 4568	4936	e0f6bbc12ebe2102cf3fcf74f9d690d9.exe	powershell.exe
PID 4936 wrote to memory of 4568	4936	e0f6bbc12ebe2102cf3fcf74f9d690d9.exe	powershell.exe
PID 4936 wrote to memory of 2460	4936	e0f6bbc12ebe2102cf3fcf74f9d690d9.exe	RegSvcs.exe
PID 4936 wrote to memory of 2460	4936	e0f6bbc12ebe2102cf3fcf74f9d690d9.exe	RegSvcs.exe
PID 4936 wrote to memory of 2460	4936	e0f6bbc12ebe2102cf3fcf74f9d690d9.exe	RegSvcs.exe
PID 4936 wrote to memory of 2460	4936	e0f6bbc12ebe2102cf3fcf74f9d690d9.exe	RegSvcs.exe
PID 4936 wrote to memory of 2460	4936	e0f6bbc12ebe2102cf3fcf74f9d690d9.exe	RegSvcs.exe
PID 4936 wrote to memory of 2460	4936	e0f6bbc12ebe2102cf3fcf74f9d690d9.exe	RegSvcs.exe
PID 4936 wrote to memory of 2460	4936	e0f6bbc12ebe2102cf3fcf74f9d690d9.exe	RegSvcs.exe
PID 4936 wrote to memory of 2460	4936	e0f6bbc12ebe2102cf3fcf74f9d690d9.exe	RegSvcs.exe

C:\Users\Admin\AppData\Local\Temp\e0f6bbc12ebe2102cf3fcf74f9d690d9.exe
"C:\Users\Admin\AppData\Local\Temp\e0f6bbc12ebe2102cf3fcf74f9d690d9.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4936

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\e0f6bbc12ebe2102cf3fcf74f9d690d9.exe"
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4568

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
PID:2460

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_b5rt2k5q.gka.ps1
Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/2460-12-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2460-68-0x0000000003330000-0x0000000003340000-memory.dmp

Filesize
64KB

Download
memory/2460-67-0x00000000750F0000-0x00000000758A0000-memory.dmp

Filesize
7.7MB

Download
memory/2460-25-0x0000000006450000-0x000000000645A000-memory.dmp

Filesize
40KB

Download
memory/2460-24-0x00000000063A0000-0x00000000063BE000-memory.dmp

Filesize
120KB

Download
memory/2460-23-0x0000000005C10000-0x0000000005C1A000-memory.dmp

Filesize
40KB

Download
memory/2460-17-0x0000000003330000-0x0000000003340000-memory.dmp

Filesize
64KB

Download
memory/2460-14-0x00000000750F0000-0x00000000758A0000-memory.dmp

Filesize
7.7MB

Download
memory/4568-53-0x0000000006420000-0x000000000643E000-memory.dmp

Filesize
120KB

Download
memory/4568-39-0x0000000005E70000-0x0000000005E8E000-memory.dmp

Filesize
120KB

Download
memory/4568-66-0x00000000750F0000-0x00000000758A0000-memory.dmp

Filesize
7.7MB

Download
memory/4568-63-0x00000000074D0000-0x00000000074D8000-memory.dmp

Filesize
32KB

Download
memory/4568-62-0x00000000074F0000-0x000000000750A000-memory.dmp

Filesize
104KB

Download
memory/4568-61-0x00000000073F0000-0x0000000007404000-memory.dmp

Filesize
80KB

Download
memory/4568-16-0x00000000048D0000-0x0000000004906000-memory.dmp

Filesize
216KB

Download
memory/4568-60-0x00000000073E0000-0x00000000073EE000-memory.dmp

Filesize
56KB

Download
memory/4568-18-0x0000000002560000-0x0000000002570000-memory.dmp

Filesize
64KB

Download
memory/4568-19-0x00000000750F0000-0x00000000758A0000-memory.dmp

Filesize
7.7MB

Download
memory/4568-22-0x0000000004F40000-0x0000000005568000-memory.dmp

Filesize
6.2MB

Download
memory/4568-59-0x00000000073B0000-0x00000000073C1000-memory.dmp

Filesize
68KB

Download
memory/4568-58-0x0000000007430000-0x00000000074C6000-memory.dmp

Filesize
600KB

Download
memory/4568-57-0x0000000007220000-0x000000000722A000-memory.dmp

Filesize
40KB

Download
memory/4568-26-0x0000000004EB0000-0x0000000004ED2000-memory.dmp

Filesize
136KB

Download
memory/4568-56-0x00000000071B0000-0x00000000071CA000-memory.dmp

Filesize
104KB

Download
memory/4568-27-0x00000000057A0000-0x0000000005806000-memory.dmp

Filesize
408KB

Download
memory/4568-33-0x0000000005880000-0x00000000058E6000-memory.dmp

Filesize
408KB

Download
memory/4568-38-0x00000000059F0000-0x0000000005D44000-memory.dmp

Filesize
3.3MB

Download
memory/4568-55-0x00000000077F0000-0x0000000007E6A000-memory.dmp

Filesize
6.5MB

Download
memory/4568-40-0x0000000005ED0000-0x0000000005F1C000-memory.dmp

Filesize
304KB

Download
memory/4568-41-0x000000007F600000-0x000000007F610000-memory.dmp

Filesize
64KB

Download
memory/4568-42-0x0000000006460000-0x0000000006492000-memory.dmp

Filesize
200KB

Download
memory/4568-43-0x0000000070CD0000-0x0000000070D1C000-memory.dmp

Filesize
304KB

Download
memory/4568-54-0x0000000007080000-0x0000000007123000-memory.dmp

Filesize
652KB

Download
memory/4936-7-0x0000000004FD0000-0x0000000004FE2000-memory.dmp

Filesize
72KB

Download
memory/4936-10-0x0000000006790000-0x0000000006812000-memory.dmp

Filesize
520KB

Download
memory/4936-3-0x0000000004BA0000-0x0000000004C32000-memory.dmp

Filesize
584KB

Download
memory/4936-4-0x0000000004B40000-0x0000000004B50000-memory.dmp

Filesize
64KB

Download
memory/4936-5-0x0000000004B60000-0x0000000004B6A000-memory.dmp

Filesize
40KB

Download
memory/4936-6-0x0000000004E30000-0x0000000004ECC000-memory.dmp

Filesize
624KB

Download
memory/4936-0-0x00000000000A0000-0x0000000000154000-memory.dmp

Filesize
720KB

Download
memory/4936-15-0x00000000750F0000-0x00000000758A0000-memory.dmp

Filesize
7.7MB

Download
memory/4936-8-0x00000000750F0000-0x00000000758A0000-memory.dmp

Filesize
7.7MB

Download
memory/4936-9-0x0000000004B40000-0x0000000004B50000-memory.dmp

Filesize
64KB

Download
memory/4936-11-0x0000000006810000-0x000000000684A000-memory.dmp

Filesize
232KB

Download
memory/4936-2-0x00000000050B0000-0x0000000005654000-memory.dmp

Filesize
5.6MB

Download
memory/4936-1-0x00000000750F0000-0x00000000758A0000-memory.dmp

Filesize
7.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads