nanocore | f2597b91433ba86188dd0e53cf04d2c43d97f5231bc3077df18e75447f15c77c

Analysis

max time kernel
17s
max time network
148s
platform
windows10_x64
resource
win10v20201028
submitted
12/04/2021, 03:06

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General

Target
SWIFTS.scr.exe
Size 996KB
Sample210412-3fq1b4v8dn
SHA256 f2597b91433ba86188dd0e53cf04d2c43d97f5231bc3077df18e75447f15c77c
MD5 0984d8481d809d2715214d220d5f3224
SHA1 be4bfdae28308590b04709935794109a77d5ecee
SHA512 6d3bc4b24ea6b426890310a9ddaa27047ae4dbe983790d367889a1c5452d964e11c7a3d0ead8ff96cc7f27067ffa5c9f5925e75e1d7d994c8504b01b662ff2f9
MD5 SHA1 SHA512

Score

10^/10

nanocore evasion keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

ekuro.hopto.org:1980
127.0.0.1:1980

Mutex

7f972ccd-f2c1-42af-a77f-74adb4b90c5d

Attributes

activate_away_mode
true
backup_connection_host
127.0.0.1
backup_dns_server
8.8.4.4
buffer_size
65535
build_time
2021-01-21T21:13:57.287003636Z
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
1980
default_group
EGO OKU
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
7f972ccd-f2c1-42af-a77f-74adb4b90c5d
mutex_timeout
5000
prevent_system_sleep
false
primary_connection_host
ekuro.hopto.org
primary_dns_server
8.8.8.8
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

Executes dropped EXE 2 IoCs

pid	Process
516	qtfarawjob.pif
3104	RegSvcs.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run	qtfarawjob.pif
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\WindowsUpdate = "C:\\Users\\Admin\\AppData\\Roaming\\89378384\\QTFARA~1.PIF C:\\Users\\Admin\\AppData\\Roaming\\89378384\\ODFUGP~1.ORG"	qtfarawjob.pif

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	RegSvcs.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 516 set thread context of 3104	516	qtfarawjob.pif	77

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
876	schtasks.exe

Suspicious behavior: EnumeratesProcesses 10 IoCs

pid	Process
3104	RegSvcs.exe
3104	RegSvcs.exe
3104	RegSvcs.exe
3104	RegSvcs.exe
3104	RegSvcs.exe
3104	RegSvcs.exe
3104	RegSvcs.exe
3104	RegSvcs.exe
3104	RegSvcs.exe
3104	RegSvcs.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
3104	RegSvcs.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3104	RegSvcs.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 4768 wrote to memory of 516	4768	SWIFTS.scr.exe	75
PID 4768 wrote to memory of 516	4768	SWIFTS.scr.exe	75
PID 4768 wrote to memory of 516	4768	SWIFTS.scr.exe	75
PID 516 wrote to memory of 3104	516	qtfarawjob.pif	77
PID 516 wrote to memory of 3104	516	qtfarawjob.pif	77
PID 516 wrote to memory of 3104	516	qtfarawjob.pif	77
PID 516 wrote to memory of 3104	516	qtfarawjob.pif	77
PID 516 wrote to memory of 3104	516	qtfarawjob.pif	77
PID 3104 wrote to memory of 876	3104	RegSvcs.exe	80
PID 3104 wrote to memory of 876	3104	RegSvcs.exe	80
PID 3104 wrote to memory of 876	3104	RegSvcs.exe	80

C:\Users\Admin\AppData\Local\Temp\SWIFTS.scr.exe
"C:\Users\Admin\AppData\Local\Temp\SWIFTS.scr.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:4768
- C:\Users\Admin\AppData\Roaming\89378384\qtfarawjob.pif
  "C:\Users\Admin\AppData\Roaming\89378384\qtfarawjob.pif" odfugpcmco.org
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - Suspicious use of SetThreadContext
  - Suspicious use of WriteProcessMemory
  PID:516
- - C:\Users\Admin\AppData\Local\Temp\RegSvcs.exe
    "C:\Users\Admin\AppData\Local\Temp\RegSvcs.exe"
    3⤵
    - Executes dropped EXE
    - Checks whether UAC is enabled
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:3104
  - - C:\Windows\SysWOW64\schtasks.exe
      "schtasks.exe" /create /f /tn "WAN Service" /xml "C:\Users\Admin\AppData\Local\Temp\tmp8737.tmp"
      4⤵
      Creates scheduled task(s)
      PID:876

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/3104-132-0x00000000059D0000-0x00000000059D5000-memory.dmp

Download

memory/3104-136-0x0000000006D10000-0x0000000006D25000-memory.dmp

Download

memory/3104-127-0x00000000057D0000-0x00000000057D1000-memory.dmp

Download

memory/3104-128-0x00000000056D0000-0x00000000056D1000-memory.dmp

Download

memory/3104-129-0x0000000005690000-0x0000000005B8E000-memory.dmp

Download

memory/3104-125-0x0000000005B90000-0x0000000005B91000-memory.dmp

Download

memory/3104-119-0x0000000000B00000-0x00000000010F6000-memory.dmp

Download

memory/3104-133-0x00000000059E0000-0x00000000059F9000-memory.dmp

Download

memory/3104-134-0x00000000066F0000-0x00000000066F3000-memory.dmp

Download

memory/3104-135-0x00000000066E0000-0x00000000066ED000-memory.dmp

Download

memory/3104-126-0x0000000005730000-0x0000000005731000-memory.dmp

Download

memory/3104-137-0x0000000006D50000-0x0000000006D56000-memory.dmp

Download

memory/3104-138-0x0000000006D60000-0x0000000006D6C000-memory.dmp

Download

memory/3104-139-0x0000000006D70000-0x0000000006D77000-memory.dmp

Download

memory/3104-140-0x0000000006D80000-0x0000000006D86000-memory.dmp

Download

memory/3104-141-0x0000000006D90000-0x0000000006D9D000-memory.dmp

Download

memory/3104-142-0x0000000006DA0000-0x0000000006DA9000-memory.dmp

Download

memory/3104-143-0x0000000006DB0000-0x0000000006DBF000-memory.dmp

Download

memory/3104-144-0x0000000006DD0000-0x0000000006DDA000-memory.dmp

Download

memory/3104-145-0x0000000006DE0000-0x0000000006E09000-memory.dmp

Download

memory/3104-146-0x0000000006E20000-0x0000000006E2F000-memory.dmp

Download

memory/3104-147-0x0000000006FF0000-0x0000000006FF1000-memory.dmp

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