nanocore | cc5f03883d2ef8ebbce7bbb4889577d87007332c78701184ddae5768edf2d517

Analysis

max time kernel
135s
max time network
149s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
submitted
23/08/2022, 14:06

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General

Target
GiroSwift.exe
Size 1.0MB
Sample220823-red8gagbe5
SHA256 cc5f03883d2ef8ebbce7bbb4889577d87007332c78701184ddae5768edf2d517
MD5 056365c74e40381e7f291eb4d5a9a243
SHA1 01bb8aa5dc4a4b59e2523bae86c2d9b479abcf6a
SHA512 28edd61d3983a51dec09c3d8ea063fbc0d83ada88d2d354e4b94d8b8712ee87cd76d278a3d6f44e2091f7f9b911fe66bc17e033771b61ccff5d5d308e316fd31
SSDEEP 12288:ffi0b8u3XDG264KC5AhM3Ages8rR7euN21u83ccdUhDNPV3y2SYwXlLqH5Ln4H4B:/nG2VAhE8Nzz7uaNFy2SO5Ln4H444h
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

nanocore evasion keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

79.134.225.30:1717

Mutex

a2c82c99-2ba7-4d46-80e6-925316775df2

Attributes

activate_away_mode
true
backup_connection_host
79.134.225.30
backup_dns_server
8.8.4.4
buffer_size
65535
build_time
2022-06-03T10:08:02.402597736Z
bypass_user_account_control
true
bypass_user_account_control_data
clear_access_control
true
clear_zone_identifier
false
connect_delay
4000
connection_port
1717
default_group
Giro
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
a2c82c99-2ba7-4d46-80e6-925316775df2
mutex_timeout
5000
prevent_system_sleep
false
primary_connection_host
79.134.225.30
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\TCP Service = "C:\\Program Files (x86)\\TCP Service\\tcpsvc.exe"	GiroSwift.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	GiroSwift.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2044 set thread context of 880	2044	GiroSwift.exe	33

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\TCP Service\tcpsvc.exe	GiroSwift.exe
File opened for modification	C:\Program Files (x86)\TCP Service\tcpsvc.exe	GiroSwift.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 1 IoCs

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

persistence

Scheduled Task

T1053

pid	Process
1376	schtasks.exe

Suspicious behavior: EnumeratesProcesses 7 IoCs

pid	Process
2044	GiroSwift.exe
2044	GiroSwift.exe
1344	powershell.exe
1556	powershell.exe
880	GiroSwift.exe
880	GiroSwift.exe
880	GiroSwift.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
880	GiroSwift.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeDebugPrivilege	2044	GiroSwift.exe
Token: SeDebugPrivilege	1556	powershell.exe
Token: SeDebugPrivilege	1344	powershell.exe
Token: SeDebugPrivilege	880	GiroSwift.exe

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 2044 wrote to memory of 1344	2044	GiroSwift.exe	27
PID 2044 wrote to memory of 1344	2044	GiroSwift.exe	27
PID 2044 wrote to memory of 1344	2044	GiroSwift.exe	27
PID 2044 wrote to memory of 1344	2044	GiroSwift.exe	27
PID 2044 wrote to memory of 1556	2044	GiroSwift.exe	29
PID 2044 wrote to memory of 1556	2044	GiroSwift.exe	29
PID 2044 wrote to memory of 1556	2044	GiroSwift.exe	29
PID 2044 wrote to memory of 1556	2044	GiroSwift.exe	29
PID 2044 wrote to memory of 1376	2044	GiroSwift.exe	31
PID 2044 wrote to memory of 1376	2044	GiroSwift.exe	31
PID 2044 wrote to memory of 1376	2044	GiroSwift.exe	31
PID 2044 wrote to memory of 1376	2044	GiroSwift.exe	31
PID 2044 wrote to memory of 880	2044	GiroSwift.exe	33
PID 2044 wrote to memory of 880	2044	GiroSwift.exe	33
PID 2044 wrote to memory of 880	2044	GiroSwift.exe	33
PID 2044 wrote to memory of 880	2044	GiroSwift.exe	33
PID 2044 wrote to memory of 880	2044	GiroSwift.exe	33
PID 2044 wrote to memory of 880	2044	GiroSwift.exe	33
PID 2044 wrote to memory of 880	2044	GiroSwift.exe	33
PID 2044 wrote to memory of 880	2044	GiroSwift.exe	33
PID 2044 wrote to memory of 880	2044	GiroSwift.exe	33

C:\Users\Admin\AppData\Local\Temp\GiroSwift.exe
"C:\Users\Admin\AppData\Local\Temp\GiroSwift.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2044
- 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\GiroSwift.exe"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1344
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\qsoqyg.exe"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1556
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\qsoqyg" /XML "C:\Users\Admin\AppData\Local\Temp\tmpE38C.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:1376
- C:\Users\Admin\AppData\Local\Temp\GiroSwift.exe
  "C:\Users\Admin\AppData\Local\Temp\GiroSwift.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
  PID:880

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

tmpE38C.tmp

Path C:\Users\Admin\AppData\Local\Temp\tmpE38C.tmp
Size 1KB
SHA256 66faf42145a8ca163a3a94694367f047b674fbbcab1cbe54a22d9ce59f9ab093
MD5 1ce4fc5a4d5f9f1cd7f34c416a5447d1
SHA1 557d571849b2134b999271a254dcb0d813eec43d
SHA512 83ffa4ccbbaf3a747402022d368d77793c0bbb4f5b6dd107da61a93b77947149d7dced109c8ca2076a1b08e7349ab0d4253552af7bede77d5424f95b4f386f35
MD5 SHA1 SHA512

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memory/880-79-0x0000000000390000-0x000000000039A000-memory.dmp

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memory/880-80-0x00000000004E0000-0x00000000004FE000-memory.dmp

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memory/880-72-0x0000000000400000-0x0000000000438000-memory.dmp

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memory/880-75-0x0000000000400000-0x0000000000438000-memory.dmp

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memory/880-77-0x0000000000400000-0x0000000000438000-memory.dmp

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memory/880-81-0x00000000003A0000-0x00000000003AA000-memory.dmp

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memory/880-67-0x0000000000400000-0x0000000000438000-memory.dmp

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memory/880-70-0x0000000000400000-0x0000000000438000-memory.dmp

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memory/880-69-0x0000000000400000-0x0000000000438000-memory.dmp

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memory/880-66-0x0000000000400000-0x0000000000438000-memory.dmp

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memory/1344-84-0x000000006FAB0000-0x000000007005B000-memory.dmp

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memory/1344-82-0x000000006FAB0000-0x000000007005B000-memory.dmp

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memory/1556-83-0x000000006FAB0000-0x000000007005B000-memory.dmp

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memory/2044-55-0x0000000076761000-0x0000000076763000-memory.dmp

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memory/2044-65-0x00000000050B0000-0x00000000050EA000-memory.dmp

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memory/2044-54-0x0000000000E20000-0x0000000000F2A000-memory.dmp

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memory/2044-56-0x00000000003A0000-0x00000000003BA000-memory.dmp

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memory/2044-58-0x0000000004EF0000-0x0000000004F78000-memory.dmp

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memory/2044-57-0x00000000004A0000-0x00000000004AC000-memory.dmp

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