nanocore | f1e9fd8dc15cf4c038828e3e9e39c7b70c79c676ca8ca025fc93fca7da1602a2

Analysis

max time kernel
72s
max time network
152s
platform
windows7_x64
resource
win7v20210410
submitted
07/07/2021, 10:34

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General

Target
payment slip.exe
Size 1.2MB
Sample210707-4fc9s95b76
SHA256 f1e9fd8dc15cf4c038828e3e9e39c7b70c79c676ca8ca025fc93fca7da1602a2
MD5 b229a36fe4c6961995d60d7eb0cd0ede
SHA1 8613cca2bd693cd028581c6c12ce8209179c69e2
SHA512 ed046c0f2a02f9c4a1361928c0118e8e6c60c37c98e0e4f01c93139451e78f7aab250472d0b76348033cda2720103af85247860447baac07c05869460ca3ba14
MD5 SHA1 SHA512

Score

10^/10

nanocore evasion keylogger spyware stealer trojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

erunski.duckdns.org:1515
eleks.ddns.net:1515

Mutex

653f4857-4eb9-49d8-a84b-e61ab4af9c17

Attributes

activate_away_mode
true
backup_connection_host
eleks.ddns.net
backup_dns_server
eleks.ddns.net
buffer_size
65535
build_time
2021-02-09T13:03:24.957608836Z
bypass_user_account_control
true
bypass_user_account_control_data
clear_access_control
true
clear_zone_identifier
false
connect_delay
4000
connection_port
1515
default_group
GOLD
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
653f4857-4eb9-49d8-a84b-e61ab4af9c17
mutex_timeout
5000
prevent_system_sleep
false
primary_connection_host
erunski.duckdns.org
primary_dns_server
erunski.duckdns.org
request_elevation
true
restart_delay
5000
run_delay
0
run_on_startup
true
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 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	payment slip.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1200 set thread context of 1836	1200	payment slip.exe	37

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 1 IoCs

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

persistence

Scheduled Task

T1053

pid	Process
1164	schtasks.exe

Suspicious behavior: EnumeratesProcesses 12 IoCs

pid	Process
800	powershell.exe
656	powershell.exe
1476	powershell.exe
1836	payment slip.exe
1836	payment slip.exe
1836	payment slip.exe
656	powershell.exe
800	powershell.exe
1476	powershell.exe
1836	payment slip.exe
1836	payment slip.exe
1836	payment slip.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
1836	payment slip.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeDebugPrivilege	800	powershell.exe
Token: SeDebugPrivilege	656	powershell.exe
Token: SeDebugPrivilege	1476	powershell.exe
Token: SeDebugPrivilege	1836	payment slip.exe

Suspicious use of WriteProcessMemory 25 IoCs

description	pid	Process	procid_target
PID 1200 wrote to memory of 800	1200	payment slip.exe	29
PID 1200 wrote to memory of 800	1200	payment slip.exe	29
PID 1200 wrote to memory of 800	1200	payment slip.exe	29
PID 1200 wrote to memory of 800	1200	payment slip.exe	29
PID 1200 wrote to memory of 1476	1200	payment slip.exe	31
PID 1200 wrote to memory of 1476	1200	payment slip.exe	31
PID 1200 wrote to memory of 1476	1200	payment slip.exe	31
PID 1200 wrote to memory of 1476	1200	payment slip.exe	31
PID 1200 wrote to memory of 1164	1200	payment slip.exe	33
PID 1200 wrote to memory of 1164	1200	payment slip.exe	33
PID 1200 wrote to memory of 1164	1200	payment slip.exe	33
PID 1200 wrote to memory of 1164	1200	payment slip.exe	33
PID 1200 wrote to memory of 656	1200	payment slip.exe	35
PID 1200 wrote to memory of 656	1200	payment slip.exe	35
PID 1200 wrote to memory of 656	1200	payment slip.exe	35
PID 1200 wrote to memory of 656	1200	payment slip.exe	35
PID 1200 wrote to memory of 1836	1200	payment slip.exe	37
PID 1200 wrote to memory of 1836	1200	payment slip.exe	37
PID 1200 wrote to memory of 1836	1200	payment slip.exe	37
PID 1200 wrote to memory of 1836	1200	payment slip.exe	37
PID 1200 wrote to memory of 1836	1200	payment slip.exe	37
PID 1200 wrote to memory of 1836	1200	payment slip.exe	37
PID 1200 wrote to memory of 1836	1200	payment slip.exe	37
PID 1200 wrote to memory of 1836	1200	payment slip.exe	37
PID 1200 wrote to memory of 1836	1200	payment slip.exe	37

C:\Users\Admin\AppData\Local\Temp\payment slip.exe
"C:\Users\Admin\AppData\Local\Temp\payment slip.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1200
- 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\payment slip.exe"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:800
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\UbBSjyGybpB.exe"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1476
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\UbBSjyGybpB" /XML "C:\Users\Admin\AppData\Local\Temp\tmpE88B.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:1164
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\UbBSjyGybpB.exe"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:656
- C:\Users\Admin\AppData\Local\Temp\payment slip.exe
  "C:\Users\Admin\AppData\Local\Temp\payment slip.exe"
  2⤵
  - Checks whether UAC is enabled
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of AdjustPrivilegeToken
  PID:1836

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

T1053

Persistence

Scheduled Task

T1053

Privilege Escalation

Scheduled Task

T1053

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/656-95-0x00000000020B0000-0x0000000002CFA000-memory.dmp

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memory/656-97-0x00000000020B0000-0x0000000002CFA000-memory.dmp

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memory/800-90-0x0000000002290000-0x0000000002291000-memory.dmp

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memory/800-80-0x0000000004BB0000-0x0000000004BB1000-memory.dmp

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memory/800-81-0x0000000004BB2000-0x0000000004BB3000-memory.dmp

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memory/800-67-0x00000000768B1000-0x00000000768B3000-memory.dmp

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memory/800-99-0x0000000002520000-0x0000000002521000-memory.dmp

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memory/800-74-0x0000000004BF0000-0x0000000004BF1000-memory.dmp

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memory/800-73-0x00000000020F0000-0x00000000020F1000-memory.dmp

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memory/1200-65-0x0000000005580000-0x00000000055FC000-memory.dmp

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memory/1200-60-0x0000000000010000-0x0000000000011000-memory.dmp

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memory/1200-64-0x00000000054D0000-0x000000000557F000-memory.dmp

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memory/1200-63-0x00000000006C0000-0x00000000006CF000-memory.dmp

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memory/1200-62-0x0000000004D50000-0x0000000004D51000-memory.dmp

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memory/1476-144-0x000000007EF30000-0x000000007EF31000-memory.dmp

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memory/1476-136-0x00000000055D0000-0x00000000055D1000-memory.dmp

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memory/1476-98-0x00000000020B0000-0x0000000002CFA000-memory.dmp

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memory/1476-111-0x0000000005610000-0x0000000005611000-memory.dmp

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memory/1476-129-0x0000000006250000-0x0000000006251000-memory.dmp

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memory/1476-121-0x0000000005670000-0x0000000005671000-memory.dmp

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memory/1476-122-0x00000000061C0000-0x00000000061C1000-memory.dmp

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memory/1836-120-0x0000000000880000-0x000000000088F000-memory.dmp

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memory/1836-119-0x0000000004CB0000-0x0000000004CD9000-memory.dmp

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memory/1836-117-0x0000000000860000-0x000000000086A000-memory.dmp

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memory/1836-114-0x0000000000850000-0x000000000085F000-memory.dmp

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memory/1836-112-0x0000000000800000-0x0000000000809000-memory.dmp

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memory/1836-109-0x00000000007F0000-0x00000000007FD000-memory.dmp

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memory/1836-107-0x00000000007E0000-0x00000000007E6000-memory.dmp

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memory/1836-106-0x00000000006B0000-0x00000000006B7000-memory.dmp

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memory/1836-105-0x00000000006A0000-0x00000000006AC000-memory.dmp

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memory/1836-104-0x0000000000680000-0x0000000000686000-memory.dmp

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memory/1836-103-0x0000000000620000-0x0000000000635000-memory.dmp

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memory/1836-102-0x0000000000450000-0x000000000045D000-memory.dmp

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memory/1836-94-0x0000000004D60000-0x0000000004D61000-memory.dmp

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memory/1836-93-0x00000000003E0000-0x00000000003E3000-memory.dmp

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memory/1836-89-0x00000000003C0000-0x00000000003D9000-memory.dmp

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memory/1836-88-0x0000000000370000-0x0000000000375000-memory.dmp

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memory/1836-79-0x0000000000400000-0x0000000000438000-memory.dmp

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memory/1836-76-0x0000000000400000-0x0000000000438000-memory.dmp

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