nanocore | d83f045f37fee400914070cf4572a2d17cf739f0d46a747b1813afafbeae9add

General

Target

cb03dde105377fdbe68db2f8a2d8bc42.exe
Size

703KB
MD5

cb03dde105377fdbe68db2f8a2d8bc42
SHA1

029e7f2aa409149bc0c3afa0727c8b8ccf581469
SHA256

d83f045f37fee400914070cf4572a2d17cf739f0d46a747b1813afafbeae9add
SHA512

cdd04765039d6de4f57761a00b005fc610963629e38c5f7aba635e07660bbcf23d3cb2dac2ba6d72f1efc989221cea37b095fedbf459ce62100959e431c71ee5
SSDEEP

12288:vMxxqSwzVBJ7MOuHCHOYS8NxZ2OHTdMRG2VGuqbsbCr78DqEH4:0xDyJ7MOjY8zZ2ATdMR7VGZ+4

Score

10^/10

nanocore 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

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

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-1497073144-2389943819-3385106915-1000\Control Panel\International\Geo\Nation	cb03dde105377fdbe68db2f8a2d8bc42.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\NAT Subsystem = "C:\\Program Files (x86)\\NAT Subsystem\\natss.exe"	RegSvcs.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4600 set thread context of 4648	4600	cb03dde105377fdbe68db2f8a2d8bc42.exe	95

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\NAT Subsystem\natss.exe	RegSvcs.exe
File created	C:\Program Files (x86)\NAT Subsystem\natss.exe	RegSvcs.exe

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

System Information Discovery
T1082

Creates scheduled task(s) 1 TTPs 3 IoCs

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

persistence

Scheduled Task/Job

T1053

pid	Process
3088	schtasks.exe
3300	schtasks.exe
1344	schtasks.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
4600	cb03dde105377fdbe68db2f8a2d8bc42.exe
4648	RegSvcs.exe
4648	RegSvcs.exe
4648	RegSvcs.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
4648	RegSvcs.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4600	cb03dde105377fdbe68db2f8a2d8bc42.exe
Token: SeDebugPrivilege	4648	RegSvcs.exe

Suspicious use of WriteProcessMemory 17 IoCs

description	pid	Process	procid_target
PID 4600 wrote to memory of 3088	4600	cb03dde105377fdbe68db2f8a2d8bc42.exe	93
PID 4600 wrote to memory of 3088	4600	cb03dde105377fdbe68db2f8a2d8bc42.exe	93
PID 4600 wrote to memory of 3088	4600	cb03dde105377fdbe68db2f8a2d8bc42.exe	93
PID 4600 wrote to memory of 4648	4600	cb03dde105377fdbe68db2f8a2d8bc42.exe	95
PID 4600 wrote to memory of 4648	4600	cb03dde105377fdbe68db2f8a2d8bc42.exe	95
PID 4600 wrote to memory of 4648	4600	cb03dde105377fdbe68db2f8a2d8bc42.exe	95
PID 4600 wrote to memory of 4648	4600	cb03dde105377fdbe68db2f8a2d8bc42.exe	95
PID 4600 wrote to memory of 4648	4600	cb03dde105377fdbe68db2f8a2d8bc42.exe	95
PID 4600 wrote to memory of 4648	4600	cb03dde105377fdbe68db2f8a2d8bc42.exe	95
PID 4600 wrote to memory of 4648	4600	cb03dde105377fdbe68db2f8a2d8bc42.exe	95
PID 4600 wrote to memory of 4648	4600	cb03dde105377fdbe68db2f8a2d8bc42.exe	95
PID 4648 wrote to memory of 3300	4648	RegSvcs.exe	96
PID 4648 wrote to memory of 3300	4648	RegSvcs.exe	96
PID 4648 wrote to memory of 3300	4648	RegSvcs.exe	96
PID 4648 wrote to memory of 1344	4648	RegSvcs.exe	98
PID 4648 wrote to memory of 1344	4648	RegSvcs.exe	98
PID 4648 wrote to memory of 1344	4648	RegSvcs.exe	98

C:\Users\Admin\AppData\Local\Temp\cb03dde105377fdbe68db2f8a2d8bc42.exe
"C:\Users\Admin\AppData\Local\Temp\cb03dde105377fdbe68db2f8a2d8bc42.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4600
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\WswHPQS" /XML "C:\Users\Admin\AppData\Local\Temp\tmpE7B0.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:3088
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
  "{path}"
  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:4648
- - C:\Windows\SysWOW64\schtasks.exe
    "schtasks.exe" /create /f /tn "NAT Subsystem" /xml "C:\Users\Admin\AppData\Local\Temp\tmpEA6F.tmp"
    3⤵
    - Creates scheduled task(s)
    PID:3300
- - C:\Windows\SysWOW64\schtasks.exe
    "schtasks.exe" /create /f /tn "NAT Subsystem Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmpEA9F.tmp"
    3⤵
    - Creates scheduled task(s)
    PID:1344

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

1

T1053

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

Scheduled Task/Job

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

Scheduled Task/Job

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

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmpE7B0.tmp

Filesize
1KB

MD5
282dbede5d58d507646ad78c54285172

SHA1
529b11f58c1c6bd13eb4e1aa3e52423e1cb0b704

SHA256
73b0c8e6dde70602ffd91b97a7a54ab0dca9a1331d9225cf8b41ab5bcc1e287b

SHA512
94d66552fc55467a594fa5a9f20b789bf220ee5ca474e8ba7de06ade1c3887a28b7ba6edcb89907e5fc8e3ffd780a4f4eebbd883d3494b3b9d2271201ac0f7b4

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpEA6F.tmp

Filesize
1KB

MD5
8cad1b41587ced0f1e74396794f31d58

SHA1
11054bf74fcf5e8e412768035e4dae43aa7b710f

SHA256
3086d914f6b23268f8a12cb1a05516cd5465c2577e1d1e449f1b45c8e5e8f83c

SHA512
99c2ef89029de51a866df932841684b7fc912df21e10e2dd0d09e400203bbdc6cba6319a31780b7bf8b286d2cea8ea3fc7d084348bf2f002ab4f5a34218ccbef

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpEA9F.tmp

Filesize
1KB

MD5
c58d37cb49c18f1d7cece3c78ac2f407

SHA1
769ed0ea9d5269e1cec7234eaac77da129cc0463

SHA256
52cdb418384a912c5b7071c92d7761f0d12250f07dbbb31876eb2e8d65acbae7

SHA512
2efcb3eaf050d56ad3d483112303a1543f9fc457119fbca7d81b45d5619c0f1ba706ce96644d4e2055c1b5ada7af13f071495287a775ce234d9125633bf02775

Download Submit
memory/4600-1-0x0000000074D30000-0x00000000754E0000-memory.dmp

Filesize
7.7MB

Download
memory/4600-11-0x0000000005900000-0x000000000593A000-memory.dmp

Filesize
232KB

Download
memory/4600-5-0x0000000007EC0000-0x0000000007ECA000-memory.dmp

Filesize
40KB

Download
memory/4600-6-0x00000000031B0000-0x00000000031B8000-memory.dmp

Filesize
32KB

Download
memory/4600-7-0x0000000005AA0000-0x0000000005B3C000-memory.dmp

Filesize
624KB

Download
memory/4600-8-0x0000000074D30000-0x00000000754E0000-memory.dmp

Filesize
7.7MB

Download
memory/4600-9-0x0000000007FA0000-0x0000000007FB0000-memory.dmp

Filesize
64KB

Download
memory/4600-10-0x0000000005EC0000-0x0000000005F4C000-memory.dmp

Filesize
560KB

Download
memory/4600-17-0x0000000074D30000-0x00000000754E0000-memory.dmp

Filesize
7.7MB

Download
memory/4600-3-0x0000000007E20000-0x0000000007EB2000-memory.dmp

Filesize
584KB

Download
memory/4600-4-0x0000000007FA0000-0x0000000007FB0000-memory.dmp

Filesize
64KB

Download
memory/4600-2-0x0000000008330000-0x00000000088D4000-memory.dmp

Filesize
5.6MB

Download
memory/4600-0-0x0000000000E90000-0x0000000000F46000-memory.dmp

Filesize
728KB

Download
memory/4648-19-0x00000000058A0000-0x00000000058B0000-memory.dmp

Filesize
64KB

Download
memory/4648-15-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/4648-18-0x0000000074D30000-0x00000000754E0000-memory.dmp

Filesize
7.7MB

Download
memory/4648-27-0x0000000005710000-0x000000000571A000-memory.dmp

Filesize
40KB

Download
memory/4648-28-0x0000000005880000-0x000000000589E000-memory.dmp

Filesize
120KB

Download
memory/4648-29-0x0000000005B80000-0x0000000005B8A000-memory.dmp

Filesize
40KB

Download
memory/4648-30-0x0000000074D30000-0x00000000754E0000-memory.dmp

Filesize
7.7MB

Download
memory/4648-31-0x00000000058A0000-0x00000000058B0000-memory.dmp

Filesize
64KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads