nanocore | b555dbdcad4c6b11b68bfe29c05f4c46f026f3c8f648f83ca8856dd3b3a9f82c

Analysis

max time kernel
98s
max time network
167s
platform
windows7_x64
resource
win7-20220718-en
resource tags

arch:x64arch:x86image:win7-20220718-enlocale:en-usos:windows7-x64system
submitted
25/07/2022, 06:03

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General

Target
426db7c232d53e522642de3508374f51.exe
Size 626KB
Sample220725-gr2jeshhdl
SHA256 b555dbdcad4c6b11b68bfe29c05f4c46f026f3c8f648f83ca8856dd3b3a9f82c
MD5 426db7c232d53e522642de3508374f51
SHA1 dc6e2fc69ae16aabf57634fdf3d470ff986b0952
SHA512 37ce82dee76b29d6d309d3097d721ad97d6fd96f8280ff8254c419ac10285208e0ef85586ea5d74d65c3e94edce437ba62bf3fbcb37dd4a5b73a2fdf2ff26769
MD5 SHA1 SHA512

Score

10^/10

nanocore evasion keylogger persistence spyware stealer suricata trojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

jasonbourne.bounceme.net:6754
127.0.0.1:6754

Mutex

e9d74429-3eb4-4129-af20-2014507cbb2b

Attributes

activate_away_mode
true
backup_connection_host
127.0.0.1
backup_dns_server
8.8.4.4
buffer_size
65535
build_time
2022-04-29T14:02:59.809548536Z
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
6754
default_group
jasonX
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
e9d74429-3eb4-4129-af20-2014507cbb2b
mutex_timeout
5000
prevent_system_sleep
false
primary_connection_host
jasonbourne.bounceme.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
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\DNS Manager = "C:\\Program Files (x86)\\DNS Manager\\dnsmgr.exe"	426db7c232d53e522642de3508374f51.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	426db7c232d53e522642de3508374f51.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2032 set thread context of 1744	2032	426db7c232d53e522642de3508374f51.exe	29

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\DNS Manager\dnsmgr.exe	426db7c232d53e522642de3508374f51.exe
File opened for modification	C:\Program Files (x86)\DNS Manager\dnsmgr.exe	426db7c232d53e522642de3508374f51.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
908	schtasks.exe
676	schtasks.exe

Suspicious behavior: EnumeratesProcesses 5 IoCs

pid	Process
2032	426db7c232d53e522642de3508374f51.exe
1744	426db7c232d53e522642de3508374f51.exe
1744	426db7c232d53e522642de3508374f51.exe
1744	426db7c232d53e522642de3508374f51.exe
1744	426db7c232d53e522642de3508374f51.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
1744	426db7c232d53e522642de3508374f51.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2032	426db7c232d53e522642de3508374f51.exe
Token: SeDebugPrivilege	1744	426db7c232d53e522642de3508374f51.exe

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 2032 wrote to memory of 1612	2032	426db7c232d53e522642de3508374f51.exe	28
PID 2032 wrote to memory of 1612	2032	426db7c232d53e522642de3508374f51.exe	28
PID 2032 wrote to memory of 1612	2032	426db7c232d53e522642de3508374f51.exe	28
PID 2032 wrote to memory of 1612	2032	426db7c232d53e522642de3508374f51.exe	28
PID 2032 wrote to memory of 1744	2032	426db7c232d53e522642de3508374f51.exe	29
PID 2032 wrote to memory of 1744	2032	426db7c232d53e522642de3508374f51.exe	29
PID 2032 wrote to memory of 1744	2032	426db7c232d53e522642de3508374f51.exe	29
PID 2032 wrote to memory of 1744	2032	426db7c232d53e522642de3508374f51.exe	29
PID 2032 wrote to memory of 1744	2032	426db7c232d53e522642de3508374f51.exe	29
PID 2032 wrote to memory of 1744	2032	426db7c232d53e522642de3508374f51.exe	29
PID 2032 wrote to memory of 1744	2032	426db7c232d53e522642de3508374f51.exe	29
PID 2032 wrote to memory of 1744	2032	426db7c232d53e522642de3508374f51.exe	29
PID 2032 wrote to memory of 1744	2032	426db7c232d53e522642de3508374f51.exe	29
PID 1744 wrote to memory of 908	1744	426db7c232d53e522642de3508374f51.exe	30
PID 1744 wrote to memory of 908	1744	426db7c232d53e522642de3508374f51.exe	30
PID 1744 wrote to memory of 908	1744	426db7c232d53e522642de3508374f51.exe	30
PID 1744 wrote to memory of 908	1744	426db7c232d53e522642de3508374f51.exe	30
PID 1744 wrote to memory of 676	1744	426db7c232d53e522642de3508374f51.exe	32
PID 1744 wrote to memory of 676	1744	426db7c232d53e522642de3508374f51.exe	32
PID 1744 wrote to memory of 676	1744	426db7c232d53e522642de3508374f51.exe	32
PID 1744 wrote to memory of 676	1744	426db7c232d53e522642de3508374f51.exe	32

C:\Users\Admin\AppData\Local\Temp\426db7c232d53e522642de3508374f51.exe
"C:\Users\Admin\AppData\Local\Temp\426db7c232d53e522642de3508374f51.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2032
- C:\Users\Admin\AppData\Local\Temp\426db7c232d53e522642de3508374f51.exe
  "C:\Users\Admin\AppData\Local\Temp\426db7c232d53e522642de3508374f51.exe"
  2⤵
  PID:1612
- C:\Users\Admin\AppData\Local\Temp\426db7c232d53e522642de3508374f51.exe
  "C:\Users\Admin\AppData\Local\Temp\426db7c232d53e522642de3508374f51.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:1744
- - C:\Windows\SysWOW64\schtasks.exe
    "schtasks.exe" /create /f /tn "DNS Manager" /xml "C:\Users\Admin\AppData\Local\Temp\tmpE985.tmp"
    3⤵
    - Creates scheduled task(s)
    PID:908
- - C:\Windows\SysWOW64\schtasks.exe
    "schtasks.exe" /create /f /tn "DNS Manager Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmpEC15.tmp"
    3⤵
    - Creates scheduled task(s)
    PID:676

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

tmpE985.tmp

Path C:\Users\Admin\AppData\Local\Temp\tmpE985.tmp
Size 1KB
SHA256 8d7ddb840579ad6f324c01877e8a7883f2a156242f6c5e277a298d5bb7ab3603
MD5 1a5af8f08bd02a36bb86a080a7bfe4a8
SHA1 02acac250fdc227a2056886a3d1f8ed87422d1fc
SHA512 839d706be9c86124045b0990b9917b3aba64e402555d8664c06488b18ee7731858e756cea5d1543c3590c4bb50160334b397868d99b47e3394fedbc9c8d15352
MD5 SHA1 SHA512

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tmpEC15.tmp

Path C:\Users\Admin\AppData\Local\Temp\tmpEC15.tmp
Size 1KB
SHA256 ef704c92466ea7f43c33880380c3fbc8bee8d8ce7a041abefb23fd610baff13c
MD5 bf0287a4e4ec6b543e5f2c020d4f88b2
SHA1 da151b3e3f382ec107053e487b08035616db2694
SHA512 94c9b8f53120a0024031996a91ee54de0a791e49e45a9e2c6e56c51a363b3b3cac206f19b84861a21054bcd3ee8031ab684596502a126fea47352474a4ecd8be
MD5 SHA1 SHA512

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memory/1744-63-0x0000000000400000-0x0000000000438000-memory.dmp

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memory/1744-78-0x0000000000650000-0x000000000066E000-memory.dmp

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memory/1744-60-0x0000000000400000-0x0000000000438000-memory.dmp

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memory/1744-61-0x0000000000400000-0x0000000000438000-memory.dmp

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memory/1744-91-0x0000000000F60000-0x0000000000F74000-memory.dmp

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memory/1744-64-0x0000000000400000-0x0000000000438000-memory.dmp

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memory/1744-71-0x0000000000400000-0x0000000000438000-memory.dmp

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memory/1744-69-0x0000000000400000-0x0000000000438000-memory.dmp

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memory/1744-66-0x0000000000400000-0x0000000000438000-memory.dmp

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memory/1744-90-0x0000000002580000-0x00000000025AE000-memory.dmp

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memory/1744-89-0x0000000000E50000-0x0000000000E5E000-memory.dmp

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memory/1744-88-0x00000000009D0000-0x00000000009E4000-memory.dmp

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memory/1744-87-0x00000000009C0000-0x00000000009D0000-memory.dmp

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memory/1744-77-0x00000000005B0000-0x00000000005BA000-memory.dmp

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memory/1744-86-0x00000000009B0000-0x00000000009C4000-memory.dmp

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memory/1744-79-0x0000000000600000-0x000000000060A000-memory.dmp

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memory/1744-80-0x00000000007D0000-0x00000000007E2000-memory.dmp

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memory/1744-81-0x00000000007E0000-0x00000000007FA000-memory.dmp

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memory/1744-82-0x0000000000850000-0x000000000085E000-memory.dmp

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memory/1744-83-0x0000000000860000-0x0000000000872000-memory.dmp

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memory/1744-84-0x0000000000880000-0x000000000088E000-memory.dmp

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memory/1744-85-0x00000000008A0000-0x00000000008AC000-memory.dmp

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memory/2032-59-0x0000000004560000-0x000000000459A000-memory.dmp

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memory/2032-55-0x0000000076071000-0x0000000076073000-memory.dmp

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memory/2032-56-0x0000000000520000-0x0000000000536000-memory.dmp

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memory/2032-57-0x0000000000750000-0x000000000075A000-memory.dmp

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memory/2032-58-0x0000000005D60000-0x0000000005DE8000-memory.dmp

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memory/2032-54-0x0000000000FD0000-0x0000000001072000-memory.dmp

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