nanocore | 8de953938b8fb2d222892012da5758cefe50de064f61416c2bc2c6e6f019352c

Analysis

max time kernel
117s
max time network
154s
platform
windows7_x64
resource
win7-en-20211208
submitted
03/01/2022, 14:33

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General

Target
HSS.exe
Size 613KB
Sample220103-rxbkashhap
SHA256 8de953938b8fb2d222892012da5758cefe50de064f61416c2bc2c6e6f019352c
MD5 695a29876aca210fb29fee8a502c0fa3
SHA1 5d2470bf7491e64b805033a6c20843e893ec030c
SHA512 eac462c5becd7218b579e4954133c46ba37ce72b4a2c4f6ddcd558a8f4c19bdd229ed54abdd6f9f45683a2650acbc76572b0406b78938ca8e7aca6ed0584685d
MD5 SHA1 SHA512

Score

10^/10

nanocore evasion keylogger persistence spyware stealer suricata trojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

godisgood1.hopto.org:7712

Mutex

9ed8d108-2eb1-4e23-9679-783796e4baff

Attributes

activate_away_mode
true
backup_connection_host
backup_dns_server
8.8.4.4
buffer_size
65535
build_time
2021-04-23T17:16:53.813634136Z
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
7712
default_group
Default
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
9ed8d108-2eb1-4e23-9679-783796e4baff
mutex_timeout
5000
prevent_system_sleep
false
primary_connection_host
godisgood1.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
suricata: ET MALWARE Possible NanoCore C2 60B
suricata: ET MALWARE Possible NanoCore C2 60B
suricata

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\SAAS Monitor = "C:\\Program Files (x86)\\SAAS Monitor\\saasmon.exe"	HSS.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	HSS.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1576 set thread context of 436	1576	HSS.exe	27

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\SAAS Monitor\saasmon.exe	HSS.exe
File opened for modification	C:\Program Files (x86)\SAAS Monitor\saasmon.exe	HSS.exe

Creates scheduled task(s) 1 TTPs 2 IoCs

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

persistence

Scheduled Task

T1053

pid	Process
1844	schtasks.exe
396	schtasks.exe

Suspicious behavior: EnumeratesProcesses 5 IoCs

pid	Process
436	HSS.exe
436	HSS.exe
436	HSS.exe
436	HSS.exe
436	HSS.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
436	HSS.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	436	HSS.exe

Suspicious use of WriteProcessMemory 17 IoCs

description	pid	Process	procid_target
PID 1576 wrote to memory of 436	1576	HSS.exe	27
PID 1576 wrote to memory of 436	1576	HSS.exe	27
PID 1576 wrote to memory of 436	1576	HSS.exe	27
PID 1576 wrote to memory of 436	1576	HSS.exe	27
PID 1576 wrote to memory of 436	1576	HSS.exe	27
PID 1576 wrote to memory of 436	1576	HSS.exe	27
PID 1576 wrote to memory of 436	1576	HSS.exe	27
PID 1576 wrote to memory of 436	1576	HSS.exe	27
PID 1576 wrote to memory of 436	1576	HSS.exe	27
PID 436 wrote to memory of 1844	436	HSS.exe	28
PID 436 wrote to memory of 1844	436	HSS.exe	28
PID 436 wrote to memory of 1844	436	HSS.exe	28
PID 436 wrote to memory of 1844	436	HSS.exe	28
PID 436 wrote to memory of 396	436	HSS.exe	30
PID 436 wrote to memory of 396	436	HSS.exe	30
PID 436 wrote to memory of 396	436	HSS.exe	30
PID 436 wrote to memory of 396	436	HSS.exe	30

C:\Users\Admin\AppData\Local\Temp\HSS.exe
"C:\Users\Admin\AppData\Local\Temp\HSS.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1576
- C:\Users\Admin\AppData\Local\Temp\HSS.exe
  "C:\Users\Admin\AppData\Local\Temp\HSS.exe"
  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:436
- - C:\Windows\SysWOW64\schtasks.exe
    "schtasks.exe" /create /f /tn "SAAS Monitor" /xml "C:\Users\Admin\AppData\Local\Temp\tmp7A1F.tmp"
    3⤵
    - Creates scheduled task(s)
    PID:1844
- - C:\Windows\SysWOW64\schtasks.exe
    "schtasks.exe" /create /f /tn "SAAS Monitor Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmp7B78.tmp"
    3⤵
    - Creates scheduled task(s)
    PID:396

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

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/436-62-0x0000000000400000-0x0000000000438000-memory.dmp

Download

memory/436-73-0x0000000000880000-0x000000000088A000-memory.dmp

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memory/436-87-0x0000000004BC0000-0x0000000004BD4000-memory.dmp

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memory/436-60-0x0000000000400000-0x0000000000438000-memory.dmp

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memory/436-61-0x0000000000400000-0x0000000000438000-memory.dmp

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memory/436-86-0x0000000004D30000-0x0000000004D5E000-memory.dmp

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memory/436-63-0x0000000000400000-0x0000000000438000-memory.dmp

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memory/436-64-0x0000000000400000-0x0000000000438000-memory.dmp

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memory/436-66-0x0000000000400000-0x0000000000438000-memory.dmp

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memory/436-67-0x0000000000400000-0x0000000000438000-memory.dmp

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memory/436-85-0x0000000004B60000-0x0000000004B6E000-memory.dmp

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memory/436-84-0x0000000004240000-0x0000000004254000-memory.dmp

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memory/436-83-0x0000000004230000-0x0000000004240000-memory.dmp

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memory/436-82-0x0000000004220000-0x0000000004234000-memory.dmp

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memory/436-81-0x0000000004210000-0x000000000421E000-memory.dmp

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memory/436-75-0x0000000000890000-0x000000000089A000-memory.dmp

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memory/436-74-0x0000000000AA0000-0x0000000000ABE000-memory.dmp

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memory/436-72-0x0000000004BE0000-0x0000000004BE1000-memory.dmp

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memory/436-76-0x0000000000AC0000-0x0000000000AD2000-memory.dmp

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memory/436-77-0x0000000000B10000-0x0000000000B2A000-memory.dmp

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memory/436-78-0x0000000002050000-0x000000000205E000-memory.dmp

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memory/436-79-0x00000000020B0000-0x00000000020C2000-memory.dmp

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memory/436-80-0x00000000021C0000-0x00000000021CC000-memory.dmp

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memory/1576-55-0x0000000000B40000-0x0000000000BE0000-memory.dmp

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memory/1576-58-0x00000000004C0000-0x00000000004D2000-memory.dmp

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memory/1576-56-0x0000000076451000-0x0000000076453000-memory.dmp

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memory/1576-57-0x0000000004CF0000-0x0000000004CF1000-memory.dmp

Download

memory/1576-54-0x0000000000B40000-0x0000000000BE0000-memory.dmp

Download

memory/1576-59-0x0000000004E30000-0x0000000004E9E000-memory.dmp

Download