nanocore | 1e1b36b0fb31e3ddc268c578074db505486f9d60c85b4b1d0a78fcc7993e078f

General

Target

1e1b36b0fb31e3ddc268c578074db505486f9d60c85b4b1d0a78fcc7993e078f.exe
Size

391KB
MD5

2396b94677199da636e6ef20baaca0f8
SHA1

917c15f792ff7a49413e3e7ad3c6639afb31ea98
SHA256

1e1b36b0fb31e3ddc268c578074db505486f9d60c85b4b1d0a78fcc7993e078f
SHA512

9c20f07a6a95789607730f47c2155485610bc54fbfef39ebd6680d89aa12c8d33b4ba63ef710abd005cafe5f4861a70b28e21621ed843a4cf1a2ca0214b02c82
SSDEEP

6144:L+YMkhB3l6SfxWXxJWYStfxuUjZquttT80zLE6V1Rc/tosEq2MdJk5gcIQDUWTn2:qzSBVTxWXxpStBjS8E6SFDEqhPk5pYT

Score

10^/10

nanocore discovery evasion keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

1116.hopto.org:1116

185.140.53.9:1116

Mutex

909dcd33-e0d7-4bd0-87b2-b7fd2611b6b9

Attributes

activate_away_mode
true
backup_connection_host
185.140.53.9
backup_dns_server
8.8.4.4
buffer_size
65535
build_time
2021-02-16T08:43:19.524585136Z
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
1116
default_group
1116
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
909dcd33-e0d7-4bd0-87b2-b7fd2611b6b9
mutex_timeout
5000
prevent_system_sleep
false
primary_connection_host
1116.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
Nanocore family
nanocore

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:

1e1b36b0fb31e3ddc268c578074db505486f9d60c85b4b1d0a78fcc7993e078f.exe

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\Control Panel\International\Geo\Nation	1e1b36b0fb31e3ddc268c578074db505486f9d60c85b4b1d0a78fcc7993e078f.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

1e1b36b0fb31e3ddc268c578074db505486f9d60c85b4b1d0a78fcc7993e078f.exe

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\SMTP Subsystem = "C:\\Program Files (x86)\\SMTP Subsystem\\smtpss.exe"	1e1b36b0fb31e3ddc268c578074db505486f9d60c85b4b1d0a78fcc7993e078f.exe

Checks whether UAC is enabled 1 TTPs 1 IoCs

evasion trojan

System Information Discovery

T1082

Processes:

1e1b36b0fb31e3ddc268c578074db505486f9d60c85b4b1d0a78fcc7993e078f.exe

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	1e1b36b0fb31e3ddc268c578074db505486f9d60c85b4b1d0a78fcc7993e078f.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

1e1b36b0fb31e3ddc268c578074db505486f9d60c85b4b1d0a78fcc7993e078f.exe

description	pid	Process	procid_target
PID 4540 set thread context of 752	4540	1e1b36b0fb31e3ddc268c578074db505486f9d60c85b4b1d0a78fcc7993e078f.exe	102

Drops file in Program Files directory 2 IoCs

Processes:

1e1b36b0fb31e3ddc268c578074db505486f9d60c85b4b1d0a78fcc7993e078f.exe

description	ioc	Process
File created	C:\Program Files (x86)\SMTP Subsystem\smtpss.exe	1e1b36b0fb31e3ddc268c578074db505486f9d60c85b4b1d0a78fcc7993e078f.exe
File opened for modification	C:\Program Files (x86)\SMTP Subsystem\smtpss.exe	1e1b36b0fb31e3ddc268c578074db505486f9d60c85b4b1d0a78fcc7993e078f.exe

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

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 5 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

Processes:

schtasks.exeschtasks.exe1e1b36b0fb31e3ddc268c578074db505486f9d60c85b4b1d0a78fcc7993e078f.exe1e1b36b0fb31e3ddc268c578074db505486f9d60c85b4b1d0a78fcc7993e078f.exeschtasks.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	1e1b36b0fb31e3ddc268c578074db505486f9d60c85b4b1d0a78fcc7993e078f.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	1e1b36b0fb31e3ddc268c578074db505486f9d60c85b4b1d0a78fcc7993e078f.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 3 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence execution

Scheduled Task

T1053.005

Processes:

schtasks.exeschtasks.exeschtasks.exe

pid	Process
4148	schtasks.exe
1376	schtasks.exe
1620	schtasks.exe

Suspicious behavior: EnumeratesProcesses 10 IoCs

Processes:

1e1b36b0fb31e3ddc268c578074db505486f9d60c85b4b1d0a78fcc7993e078f.exe1e1b36b0fb31e3ddc268c578074db505486f9d60c85b4b1d0a78fcc7993e078f.exe

pid	Process
4540	1e1b36b0fb31e3ddc268c578074db505486f9d60c85b4b1d0a78fcc7993e078f.exe
4540	1e1b36b0fb31e3ddc268c578074db505486f9d60c85b4b1d0a78fcc7993e078f.exe
4540	1e1b36b0fb31e3ddc268c578074db505486f9d60c85b4b1d0a78fcc7993e078f.exe
4540	1e1b36b0fb31e3ddc268c578074db505486f9d60c85b4b1d0a78fcc7993e078f.exe
4540	1e1b36b0fb31e3ddc268c578074db505486f9d60c85b4b1d0a78fcc7993e078f.exe
4540	1e1b36b0fb31e3ddc268c578074db505486f9d60c85b4b1d0a78fcc7993e078f.exe
4540	1e1b36b0fb31e3ddc268c578074db505486f9d60c85b4b1d0a78fcc7993e078f.exe
752	1e1b36b0fb31e3ddc268c578074db505486f9d60c85b4b1d0a78fcc7993e078f.exe
752	1e1b36b0fb31e3ddc268c578074db505486f9d60c85b4b1d0a78fcc7993e078f.exe
752	1e1b36b0fb31e3ddc268c578074db505486f9d60c85b4b1d0a78fcc7993e078f.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

1e1b36b0fb31e3ddc268c578074db505486f9d60c85b4b1d0a78fcc7993e078f.exe

pid	Process
752	1e1b36b0fb31e3ddc268c578074db505486f9d60c85b4b1d0a78fcc7993e078f.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

1e1b36b0fb31e3ddc268c578074db505486f9d60c85b4b1d0a78fcc7993e078f.exe1e1b36b0fb31e3ddc268c578074db505486f9d60c85b4b1d0a78fcc7993e078f.exe

description	pid	Process
Token: SeDebugPrivilege	4540	1e1b36b0fb31e3ddc268c578074db505486f9d60c85b4b1d0a78fcc7993e078f.exe
Token: SeDebugPrivilege	752	1e1b36b0fb31e3ddc268c578074db505486f9d60c85b4b1d0a78fcc7993e078f.exe

Suspicious use of WriteProcessMemory 17 IoCs

Processes:

1e1b36b0fb31e3ddc268c578074db505486f9d60c85b4b1d0a78fcc7993e078f.exe1e1b36b0fb31e3ddc268c578074db505486f9d60c85b4b1d0a78fcc7993e078f.exe

description	pid	Process	procid_target
PID 4540 wrote to memory of 1376	4540	1e1b36b0fb31e3ddc268c578074db505486f9d60c85b4b1d0a78fcc7993e078f.exe	101
PID 4540 wrote to memory of 1376	4540	1e1b36b0fb31e3ddc268c578074db505486f9d60c85b4b1d0a78fcc7993e078f.exe	101
PID 4540 wrote to memory of 1376	4540	1e1b36b0fb31e3ddc268c578074db505486f9d60c85b4b1d0a78fcc7993e078f.exe	101
PID 4540 wrote to memory of 752	4540	1e1b36b0fb31e3ddc268c578074db505486f9d60c85b4b1d0a78fcc7993e078f.exe	102
PID 4540 wrote to memory of 752	4540	1e1b36b0fb31e3ddc268c578074db505486f9d60c85b4b1d0a78fcc7993e078f.exe	102
PID 4540 wrote to memory of 752	4540	1e1b36b0fb31e3ddc268c578074db505486f9d60c85b4b1d0a78fcc7993e078f.exe	102
PID 4540 wrote to memory of 752	4540	1e1b36b0fb31e3ddc268c578074db505486f9d60c85b4b1d0a78fcc7993e078f.exe	102
PID 4540 wrote to memory of 752	4540	1e1b36b0fb31e3ddc268c578074db505486f9d60c85b4b1d0a78fcc7993e078f.exe	102
PID 4540 wrote to memory of 752	4540	1e1b36b0fb31e3ddc268c578074db505486f9d60c85b4b1d0a78fcc7993e078f.exe	102
PID 4540 wrote to memory of 752	4540	1e1b36b0fb31e3ddc268c578074db505486f9d60c85b4b1d0a78fcc7993e078f.exe	102
PID 4540 wrote to memory of 752	4540	1e1b36b0fb31e3ddc268c578074db505486f9d60c85b4b1d0a78fcc7993e078f.exe	102
PID 752 wrote to memory of 1620	752	1e1b36b0fb31e3ddc268c578074db505486f9d60c85b4b1d0a78fcc7993e078f.exe	104
PID 752 wrote to memory of 1620	752	1e1b36b0fb31e3ddc268c578074db505486f9d60c85b4b1d0a78fcc7993e078f.exe	104
PID 752 wrote to memory of 1620	752	1e1b36b0fb31e3ddc268c578074db505486f9d60c85b4b1d0a78fcc7993e078f.exe	104
PID 752 wrote to memory of 4148	752	1e1b36b0fb31e3ddc268c578074db505486f9d60c85b4b1d0a78fcc7993e078f.exe	106
PID 752 wrote to memory of 4148	752	1e1b36b0fb31e3ddc268c578074db505486f9d60c85b4b1d0a78fcc7993e078f.exe	106
PID 752 wrote to memory of 4148	752	1e1b36b0fb31e3ddc268c578074db505486f9d60c85b4b1d0a78fcc7993e078f.exe	106

C:\Users\Admin\AppData\Local\Temp\1e1b36b0fb31e3ddc268c578074db505486f9d60c85b4b1d0a78fcc7993e078f.exe
"C:\Users\Admin\AppData\Local\Temp\1e1b36b0fb31e3ddc268c578074db505486f9d60c85b4b1d0a78fcc7993e078f.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4540
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\KuepDBljyJhFlD" /XML "C:\Users\Admin\AppData\Local\Temp\tmp8AD6.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:1376
- C:\Users\Admin\AppData\Local\Temp\1e1b36b0fb31e3ddc268c578074db505486f9d60c85b4b1d0a78fcc7993e078f.exe
  "C:\Users\Admin\AppData\Local\Temp\1e1b36b0fb31e3ddc268c578074db505486f9d60c85b4b1d0a78fcc7993e078f.exe"
  2⤵
  - Adds Run key to start application
  - Checks whether UAC is enabled
  - Drops file in Program Files directory
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:752
- - C:\Windows\SysWOW64\schtasks.exe
    "schtasks.exe" /create /f /tn "SMTP Subsystem" /xml "C:\Users\Admin\AppData\Local\Temp\tmp8D57.tmp"
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:1620
- - C:\Windows\SysWOW64\schtasks.exe
    "schtasks.exe" /create /f /tn "SMTP Subsystem Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmp8D86.tmp"
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:4148

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

3

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\tmp8D57.tmp

Filesize
1KB

MD5
898b2bc0bf617bbdc7b1323bc2a0a603

SHA1
b26ba0b5a7d92456791f249435dec6bfc3d98e57

SHA256
4927330c565524f77637e3e9a3f08922cbbc6a9e30d1a496d644d2c619e9d729

SHA512
2bd475b21ebcc19290ef49041e5c457b65100fa322379b556322c8facd0d7736fca60ee383094540e849ff18da37c9fe6f2231267167c077518d1fa4b7f57dd3

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp8D86.tmp

Filesize
1KB

MD5
0339b45ef206f4becc88be0d65e24b9e

SHA1
6503a1851f4ccd8c80a31f96bd7ae40d962c9fad

SHA256
3d568a47a8944a47f4aed6982755ac7ff7dda469cc1c81c213ecaa5d89de1f83

SHA512
c98f4513db34d50510dd986e0d812545c442bd5bef26932032b165759627fab4e00c95fe907ab3416a8a1042bfa77aa516c479f1ff7d1ec2f21ae66df8f72551

Download Submit
memory/752-16-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/752-32-0x0000000074C80000-0x0000000075430000-memory.dmp

Filesize
7.7MB

Download
memory/752-31-0x0000000074C80000-0x0000000075430000-memory.dmp

Filesize
7.7MB

Download
memory/752-30-0x0000000005E00000-0x0000000005E0A000-memory.dmp

Filesize
40KB

Download
memory/752-29-0x0000000005B70000-0x0000000005B8E000-memory.dmp

Filesize
120KB

Download
memory/752-28-0x00000000058F0000-0x00000000058FA000-memory.dmp

Filesize
40KB

Download
memory/752-20-0x0000000074C80000-0x0000000075430000-memory.dmp

Filesize
7.7MB

Download
memory/752-19-0x0000000074C80000-0x0000000075430000-memory.dmp

Filesize
7.7MB

Download
memory/4540-4-0x0000000074C80000-0x0000000075430000-memory.dmp

Filesize
7.7MB

Download
memory/4540-10-0x0000000005E70000-0x0000000005ECC000-memory.dmp

Filesize
368KB

Download
memory/4540-18-0x0000000074C80000-0x0000000075430000-memory.dmp

Filesize
7.7MB

Download
memory/4540-9-0x0000000005C20000-0x0000000005CBC000-memory.dmp

Filesize
624KB

Download
memory/4540-8-0x0000000074C80000-0x0000000075430000-memory.dmp

Filesize
7.7MB

Download
memory/4540-7-0x0000000074C8E000-0x0000000074C8F000-memory.dmp

Filesize
4KB

Download
memory/4540-6-0x0000000005300000-0x000000000530A000-memory.dmp

Filesize
40KB

Download
memory/4540-0-0x0000000074C8E000-0x0000000074C8F000-memory.dmp

Filesize
4KB

Download
memory/4540-5-0x0000000004EC0000-0x0000000004ECA000-memory.dmp

Filesize
40KB

Download
memory/4540-3-0x0000000004E10000-0x0000000004EA2000-memory.dmp

Filesize
584KB

Download
memory/4540-2-0x0000000005320000-0x00000000058C4000-memory.dmp

Filesize
5.6MB

Download
memory/4540-1-0x00000000003A0000-0x0000000000408000-memory.dmp

Filesize
416KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads