nanocore | 78c2b0924dd6cad3cb012cf22f0f41fe0ad17f18d3c40dbcc419016d9aaee1af

Analysis

max time kernel
150s
max time network
152s
platform
windows10_x64
resource
win10v20210410
submitted
06/06/2021, 06:56

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General

Target
954cc03b14e57c24ad3762ed72b81755.exe
Size 949KB
Sample210606-k485zgr85a
SHA256 78c2b0924dd6cad3cb012cf22f0f41fe0ad17f18d3c40dbcc419016d9aaee1af
MD5 954cc03b14e57c24ad3762ed72b81755
SHA1 9447d03c0a76999e73867254bfaa9c5f038f8a33
SHA512 bc5891c6860490d3b4909e550c11a3249ebd1101475bf37f980a8dc7922e9535126010f456e3eb3b7e356d504f5ccea03e1fcb51610e4aaacf647522b97f5d2d
MD5 SHA1 SHA512

Score

10^/10

nanocore evasion keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

ararat.mangospot.net:7747
185.140.53.216:7747

Mutex

47ef45f5-c3cd-4adc-a596-91dff13978e9

Attributes

activate_away_mode
true
backup_connection_host
185.140.53.216
backup_dns_server
8.8.4.4
buffer_size
65535
build_time
2021-03-12T19:06:58.915943136Z
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
7747
default_group
ArArAt
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
47ef45f5-c3cd-4adc-a596-91dff13978e9
mutex_timeout
5000
prevent_system_sleep
false
primary_connection_host
ararat.mangospot.net
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

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\ISS Manager = "C:\\Program Files (x86)\\ISS Manager\\issmgr.exe"	954cc03b14e57c24ad3762ed72b81755.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	954cc03b14e57c24ad3762ed72b81755.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1496 set thread context of 780	1496	954cc03b14e57c24ad3762ed72b81755.exe	81

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\ISS Manager\issmgr.exe	954cc03b14e57c24ad3762ed72b81755.exe
File opened for modification	C:\Program Files (x86)\ISS Manager\issmgr.exe	954cc03b14e57c24ad3762ed72b81755.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
2088	schtasks.exe
1516	schtasks.exe
2544	schtasks.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
780	954cc03b14e57c24ad3762ed72b81755.exe
780	954cc03b14e57c24ad3762ed72b81755.exe
780	954cc03b14e57c24ad3762ed72b81755.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
780	954cc03b14e57c24ad3762ed72b81755.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	780	954cc03b14e57c24ad3762ed72b81755.exe

Suspicious use of WriteProcessMemory 17 IoCs

description	pid	Process	procid_target
PID 1496 wrote to memory of 2088	1496	954cc03b14e57c24ad3762ed72b81755.exe	79
PID 1496 wrote to memory of 2088	1496	954cc03b14e57c24ad3762ed72b81755.exe	79
PID 1496 wrote to memory of 2088	1496	954cc03b14e57c24ad3762ed72b81755.exe	79
PID 1496 wrote to memory of 780	1496	954cc03b14e57c24ad3762ed72b81755.exe	81
PID 1496 wrote to memory of 780	1496	954cc03b14e57c24ad3762ed72b81755.exe	81
PID 1496 wrote to memory of 780	1496	954cc03b14e57c24ad3762ed72b81755.exe	81
PID 1496 wrote to memory of 780	1496	954cc03b14e57c24ad3762ed72b81755.exe	81
PID 1496 wrote to memory of 780	1496	954cc03b14e57c24ad3762ed72b81755.exe	81
PID 1496 wrote to memory of 780	1496	954cc03b14e57c24ad3762ed72b81755.exe	81
PID 1496 wrote to memory of 780	1496	954cc03b14e57c24ad3762ed72b81755.exe	81
PID 1496 wrote to memory of 780	1496	954cc03b14e57c24ad3762ed72b81755.exe	81
PID 780 wrote to memory of 1516	780	954cc03b14e57c24ad3762ed72b81755.exe	82
PID 780 wrote to memory of 1516	780	954cc03b14e57c24ad3762ed72b81755.exe	82
PID 780 wrote to memory of 1516	780	954cc03b14e57c24ad3762ed72b81755.exe	82
PID 780 wrote to memory of 2544	780	954cc03b14e57c24ad3762ed72b81755.exe	84
PID 780 wrote to memory of 2544	780	954cc03b14e57c24ad3762ed72b81755.exe	84
PID 780 wrote to memory of 2544	780	954cc03b14e57c24ad3762ed72b81755.exe	84

C:\Users\Admin\AppData\Local\Temp\954cc03b14e57c24ad3762ed72b81755.exe
"C:\Users\Admin\AppData\Local\Temp\954cc03b14e57c24ad3762ed72b81755.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1496
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\xSdioh" /XML "C:\Users\Admin\AppData\Local\Temp\tmpA1CF.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:2088
- C:\Users\Admin\AppData\Local\Temp\954cc03b14e57c24ad3762ed72b81755.exe
  "C:\Users\Admin\AppData\Local\Temp\954cc03b14e57c24ad3762ed72b81755.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:780
- - C:\Windows\SysWOW64\schtasks.exe
    "schtasks.exe" /create /f /tn "ISS Manager" /xml "C:\Users\Admin\AppData\Local\Temp\tmpA51A.tmp"
    3⤵
    - Creates scheduled task(s)
    PID:1516
- - C:\Windows\SysWOW64\schtasks.exe
    "schtasks.exe" /create /f /tn "ISS Manager Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmpA579.tmp"
    3⤵
    - Creates scheduled task(s)
    PID:2544

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/780-143-0x0000000005020000-0x00000000050B2000-memory.dmp

Download

memory/780-140-0x0000000005450000-0x0000000005455000-memory.dmp

Download

memory/780-142-0x0000000006250000-0x0000000006253000-memory.dmp

Download

memory/780-141-0x00000000056B0000-0x00000000056C9000-memory.dmp

Download

memory/780-127-0x0000000000400000-0x0000000000438000-memory.dmp

Download

memory/1496-120-0x0000000005520000-0x0000000005521000-memory.dmp

Download

memory/1496-124-0x0000000005F40000-0x0000000005F7D000-memory.dmp

Download

memory/1496-123-0x0000000006090000-0x0000000006111000-memory.dmp

Download

memory/1496-122-0x00000000053B0000-0x00000000058AE000-memory.dmp

Download

memory/1496-121-0x0000000005590000-0x00000000055A4000-memory.dmp

Download

memory/1496-114-0x0000000000940000-0x0000000000941000-memory.dmp

Download

memory/1496-119-0x0000000005240000-0x0000000005241000-memory.dmp

Download

memory/1496-118-0x00000000053B0000-0x00000000053B1000-memory.dmp

Download

memory/1496-117-0x00000000058B0000-0x00000000058B1000-memory.dmp

Download

memory/1496-116-0x0000000005310000-0x0000000005311000-memory.dmp

Download