nanocore | e32ddbc4af4d7cdb032b3493f73acd346db0f356befd8029b867860fcaa26e25

Analysis

max time kernel
149s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20220414-en
submitted
06/05/2022, 16:15

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General

Target
7617294dae18fa4921118522d9ff72b6.exe
Size 558KB
Sample220506-tp8aeachap
SHA256 e32ddbc4af4d7cdb032b3493f73acd346db0f356befd8029b867860fcaa26e25
MD5 7617294dae18fa4921118522d9ff72b6
SHA1 e2ffa4ff386a665a5a6bf912b5d200d3ea2a5e6b
SHA512 757efee366d35151a1814ea80f76ce64f909c6816797504d33880dc086dd6bb6c24b414e42413725afafbde14794379cfc161aa1f9f60c2d7c0de13062719c15
MD5 SHA1 SHA512

Score

10^/10

nanocore evasion keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

surya.ddns.net:50421
185.19.85.175:50421

Mutex

db859f8f-dd41-4cc6-82a2-616a59f8108c

Attributes

activate_away_mode
false
backup_connection_host
185.19.85.175
backup_dns_server
buffer_size
65538
build_time
2022-02-13T19:42:33.329888736Z
bypass_user_account_control
false
bypass_user_account_control_data
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
clear_access_control
false
clear_zone_identifier
false
connect_delay
4000
connection_port
50421
default_group
0SPEED
enable_debug_mode
true
gc_threshold
1.0485772e+07
keep_alive_timeout
30000
keyboard_logging
false
lan_timeout
2500
max_packet_size
1.0485772e+07
mutex
db859f8f-dd41-4cc6-82a2-616a59f8108c
mutex_timeout
5000
prevent_system_sleep
false
primary_connection_host
surya.ddns.net
primary_dns_server
request_elevation
true
restart_delay
5000
run_delay
0
run_on_startup
false
set_critical_process
false
timeout_interval
5000
use_custom_dns_server
false
version
1.2.2.0
wan_timeout
8009

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-1-5-21-3751123196-3323558407-1869646069-1000\Control Panel\International\Geo\Nation	7617294dae18fa4921118522d9ff72b6.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\SCSI Subsystem = "C:\\Program Files (x86)\\SCSI Subsystem\\scsiss.exe"	7617294dae18fa4921118522d9ff72b6.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	7617294dae18fa4921118522d9ff72b6.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 964 set thread context of 3888	964	7617294dae18fa4921118522d9ff72b6.exe	88

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\SCSI Subsystem\scsiss.exe	7617294dae18fa4921118522d9ff72b6.exe
File opened for modification	C:\Program Files (x86)\SCSI Subsystem\scsiss.exe	7617294dae18fa4921118522d9ff72b6.exe

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

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

T1053

pid	Process
3464	schtasks.exe
4844	schtasks.exe
2932	schtasks.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
964	7617294dae18fa4921118522d9ff72b6.exe
964	7617294dae18fa4921118522d9ff72b6.exe
964	7617294dae18fa4921118522d9ff72b6.exe
3888	7617294dae18fa4921118522d9ff72b6.exe
3888	7617294dae18fa4921118522d9ff72b6.exe
3888	7617294dae18fa4921118522d9ff72b6.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
3888	7617294dae18fa4921118522d9ff72b6.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	964	7617294dae18fa4921118522d9ff72b6.exe
Token: SeDebugPrivilege	3888	7617294dae18fa4921118522d9ff72b6.exe
Token: SeDebugPrivilege	3888	7617294dae18fa4921118522d9ff72b6.exe

Suspicious use of WriteProcessMemory 20 IoCs

description	pid	Process	procid_target
PID 964 wrote to memory of 3464	964	7617294dae18fa4921118522d9ff72b6.exe	85
PID 964 wrote to memory of 3464	964	7617294dae18fa4921118522d9ff72b6.exe	85
PID 964 wrote to memory of 3464	964	7617294dae18fa4921118522d9ff72b6.exe	85
PID 964 wrote to memory of 3576	964	7617294dae18fa4921118522d9ff72b6.exe	87
PID 964 wrote to memory of 3576	964	7617294dae18fa4921118522d9ff72b6.exe	87
PID 964 wrote to memory of 3576	964	7617294dae18fa4921118522d9ff72b6.exe	87
PID 964 wrote to memory of 3888	964	7617294dae18fa4921118522d9ff72b6.exe	88
PID 964 wrote to memory of 3888	964	7617294dae18fa4921118522d9ff72b6.exe	88
PID 964 wrote to memory of 3888	964	7617294dae18fa4921118522d9ff72b6.exe	88
PID 964 wrote to memory of 3888	964	7617294dae18fa4921118522d9ff72b6.exe	88
PID 964 wrote to memory of 3888	964	7617294dae18fa4921118522d9ff72b6.exe	88
PID 964 wrote to memory of 3888	964	7617294dae18fa4921118522d9ff72b6.exe	88
PID 964 wrote to memory of 3888	964	7617294dae18fa4921118522d9ff72b6.exe	88
PID 964 wrote to memory of 3888	964	7617294dae18fa4921118522d9ff72b6.exe	88
PID 3888 wrote to memory of 4844	3888	7617294dae18fa4921118522d9ff72b6.exe	89
PID 3888 wrote to memory of 4844	3888	7617294dae18fa4921118522d9ff72b6.exe	89
PID 3888 wrote to memory of 4844	3888	7617294dae18fa4921118522d9ff72b6.exe	89
PID 3888 wrote to memory of 2932	3888	7617294dae18fa4921118522d9ff72b6.exe	91
PID 3888 wrote to memory of 2932	3888	7617294dae18fa4921118522d9ff72b6.exe	91
PID 3888 wrote to memory of 2932	3888	7617294dae18fa4921118522d9ff72b6.exe	91

C:\Users\Admin\AppData\Local\Temp\7617294dae18fa4921118522d9ff72b6.exe
"C:\Users\Admin\AppData\Local\Temp\7617294dae18fa4921118522d9ff72b6.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:964
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\rgOHbB" /XML "C:\Users\Admin\AppData\Local\Temp\tmpEB5.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:3464
- C:\Users\Admin\AppData\Local\Temp\7617294dae18fa4921118522d9ff72b6.exe
  "{path}"
  2⤵
  PID:3576
- C:\Users\Admin\AppData\Local\Temp\7617294dae18fa4921118522d9ff72b6.exe
  "{path}"
  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
  - Suspicious use of WriteProcessMemory
  PID:3888
- - C:\Windows\SysWOW64\schtasks.exe
    "schtasks.exe" /create /f /tn "SCSI Subsystem" /xml "C:\Users\Admin\AppData\Local\Temp\tmp132A.tmp"
    3⤵
    - Creates scheduled task(s)
    PID:4844
- - C:\Windows\SysWOW64\schtasks.exe
    "schtasks.exe" /create /f /tn "SCSI Subsystem Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmp1379.tmp"
    3⤵
    - Creates scheduled task(s)
    PID:2932

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

T1053

Persistence

Registry Run Keys / Startup Folder

T1060

Scheduled Task

T1053

Privilege Escalation

Scheduled Task

T1053

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

tmp132A.tmp

Path C:\Users\Admin\AppData\Local\Temp\tmp132A.tmp
Size 1KB
SHA256 3bb88fe8d0406aebc0b2bca55793d881c59d6fe583daaac4dc1de9758fa7c829
MD5 bfff1dbc040d5d8a39164d90de0a20af
SHA1 d21ff0ec88971db343557ae26c2f59a6d419850a
SHA512 e75f5c6e570995771cd06effa1edeb4a0d1fd8d16afb4064c4b642a7dc6e1126419bb88da3e671a567272e96b431fb97614e0babc333c74c2cd7e64aa8b919fb
MD5 SHA1 SHA512

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tmp1379.tmp

Path C:\Users\Admin\AppData\Local\Temp\tmp1379.tmp
Size 1KB
SHA256 8135c4e4eeaa741f752c0ab8f4ee33e3bb8a0cac5923812234f2e5177d50eb5b
MD5 bd110f9fc6c1a842f1d9b269010b0611
SHA1 ef71c062902602faef9b66dcd1cfc9fe5baaf389
SHA512 b8a7943a3126880b26407800bbdad5402c5b0e2aa106e7dbbb35d0cb145ca9de114401573a6aa66042a2e13674cfbcc2981d66b813f9b923fff5302210afba1f
MD5 SHA1 SHA512

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tmpEB5.tmp

Path C:\Users\Admin\AppData\Local\Temp\tmpEB5.tmp
Size 1KB
SHA256 660f3bd3672085bff79e784d89e995ba7123d767866b17ca9e4cb5f9fc906aff
MD5 985d62c2dda159b53c95554a3ab8423b
SHA1 53cd9f37dcf801b993c590b369a805e78bb1be59
SHA512 8c382cb468d27208dd7fccb3d33fddbdba3f3608c882c28e5b92511a07b85bfc0118dd48a858bfa0bf2f77b904a2c76121187e686a08d6956bdc4bbf3cd26f32
MD5 SHA1 SHA512

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memory/964-131-0x0000000005630000-0x00000000056CC000-memory.dmp

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memory/964-132-0x0000000005C80000-0x0000000006224000-memory.dmp

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memory/964-133-0x00000000056D0000-0x0000000005762000-memory.dmp

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memory/964-134-0x00000000055C0000-0x00000000055CA000-memory.dmp

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memory/964-135-0x00000000058C0000-0x0000000005916000-memory.dmp

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memory/964-130-0x0000000000CD0000-0x0000000000D62000-memory.dmp

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memory/3888-140-0x0000000000400000-0x000000000043A000-memory.dmp

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