nanocore | b95f5f68948d08e06292fbda648e99b3d7d237e19cb4da03fc729fddd681d195

General

Target

33033d3ad58d7ea7014df1ed01f3a87d.exe
Size

1007KB
MD5

33033d3ad58d7ea7014df1ed01f3a87d
SHA1

b5d523117a452b857706ce9829aaddbb3b041863
SHA256

b95f5f68948d08e06292fbda648e99b3d7d237e19cb4da03fc729fddd681d195
SHA512

54ceda6e975ebddf704bc93600cb10e3f05358857908b8fa1eb742efddd2a206683782c87462c80f14210c0c4402de6321a117b2356bfdfd662f3aef1567e450
SSDEEP

24576:4sI90AUjkXY+mzo3FLevRJSHl+4NG8okyNR:xSlmzJvRs+qG3kyn

Score

10^/10

nanocore evasion keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

kasawulli845.ddns.net:5211

127.0.0.1:5211

Mutex

d4cfd040-7e1e-457d-bd2d-3dc785b0760c

Attributes

activate_away_mode
true
backup_connection_host
127.0.0.1
backup_dns_server
8.8.4.4
buffer_size
65535
build_time
2022-05-29T06:31:10.522487936Z
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
5211
default_group
AUGFILE
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
d4cfd040-7e1e-457d-bd2d-3dc785b0760c
mutex_timeout
5000
prevent_system_sleep
false
primary_connection_host
kasawulli845.ddns.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

Processes:

33033d3ad58d7ea7014df1ed01f3a87d.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\DOS Host = "C:\\Program Files (x86)\\DOS Host\\doshost.exe"	33033d3ad58d7ea7014df1ed01f3a87d.exe

Checks whether UAC is enabled 1 TTPs 1 IoCs

evasion trojan

System Information Discovery

T1082

Processes:

33033d3ad58d7ea7014df1ed01f3a87d.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	33033d3ad58d7ea7014df1ed01f3a87d.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

33033d3ad58d7ea7014df1ed01f3a87d.exe

description pid process target process

PID 4512 set thread context of 1632 4512 33033d3ad58d7ea7014df1ed01f3a87d.exe 33033d3ad58d7ea7014df1ed01f3a87d.exe

description	pid	process	target process
PID 4512 set thread context of 1632	4512	33033d3ad58d7ea7014df1ed01f3a87d.exe	33033d3ad58d7ea7014df1ed01f3a87d.exe

Drops file in Program Files directory 2 IoCs

Processes:

33033d3ad58d7ea7014df1ed01f3a87d.exe

description	ioc	process
File created	C:\Program Files (x86)\DOS Host\doshost.exe	33033d3ad58d7ea7014df1ed01f3a87d.exe
File opened for modification	C:\Program Files (x86)\DOS Host\doshost.exe	33033d3ad58d7ea7014df1ed01f3a87d.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

Processes:

schtasks.exeschtasks.exe

pid process

3576 schtasks.exe
3424 schtasks.exe

pid	process
3576	schtasks.exe
3424	schtasks.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

Processes:

33033d3ad58d7ea7014df1ed01f3a87d.exe33033d3ad58d7ea7014df1ed01f3a87d.exe

pid	process
4512	33033d3ad58d7ea7014df1ed01f3a87d.exe
4512	33033d3ad58d7ea7014df1ed01f3a87d.exe
1632	33033d3ad58d7ea7014df1ed01f3a87d.exe
1632	33033d3ad58d7ea7014df1ed01f3a87d.exe
1632	33033d3ad58d7ea7014df1ed01f3a87d.exe
1632	33033d3ad58d7ea7014df1ed01f3a87d.exe
1632	33033d3ad58d7ea7014df1ed01f3a87d.exe
1632	33033d3ad58d7ea7014df1ed01f3a87d.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

33033d3ad58d7ea7014df1ed01f3a87d.exe

pid process

1632 33033d3ad58d7ea7014df1ed01f3a87d.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

33033d3ad58d7ea7014df1ed01f3a87d.exe33033d3ad58d7ea7014df1ed01f3a87d.exe

description pid process

Token: SeDebugPrivilege 4512 33033d3ad58d7ea7014df1ed01f3a87d.exe
Token: SeDebugPrivilege 1632 33033d3ad58d7ea7014df1ed01f3a87d.exe

pid	process
1632	33033d3ad58d7ea7014df1ed01f3a87d.exe

description	pid	process
Token: SeDebugPrivilege	4512	33033d3ad58d7ea7014df1ed01f3a87d.exe
Token: SeDebugPrivilege	1632	33033d3ad58d7ea7014df1ed01f3a87d.exe

Suspicious use of WriteProcessMemory 17 IoCs

Processes:

33033d3ad58d7ea7014df1ed01f3a87d.exe33033d3ad58d7ea7014df1ed01f3a87d.exe

C:\Users\Admin\AppData\Local\Temp\33033d3ad58d7ea7014df1ed01f3a87d.exe
"C:\Users\Admin\AppData\Local\Temp\33033d3ad58d7ea7014df1ed01f3a87d.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4512
- C:\Users\Admin\AppData\Local\Temp\33033d3ad58d7ea7014df1ed01f3a87d.exe
  "C:\Users\Admin\AppData\Local\Temp\33033d3ad58d7ea7014df1ed01f3a87d.exe"
  2⤵
  PID:2312
- C:\Users\Admin\AppData\Local\Temp\33033d3ad58d7ea7014df1ed01f3a87d.exe
  "C:\Users\Admin\AppData\Local\Temp\33033d3ad58d7ea7014df1ed01f3a87d.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:1632
- - C:\Windows\SysWOW64\schtasks.exe
    "schtasks.exe" /create /f /tn "DOS Host" /xml "C:\Users\Admin\AppData\Local\Temp\tmp6215.tmp"
    3⤵
    - Creates scheduled task(s)
    PID:3576
- - C:\Windows\SysWOW64\schtasks.exe
    "schtasks.exe" /create /f /tn "DOS Host Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmp62D2.tmp"
    3⤵
    - Creates scheduled task(s)
    PID:3424

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

Registry Run Keys / Startup Folder

Scheduled Task

Privilege Escalation

Scheduled Task

1

T1053

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\33033d3ad58d7ea7014df1ed01f3a87d.exe.log

Filesize
1KB

MD5
8ec831f3e3a3f77e4a7b9cd32b48384c

SHA1
d83f09fd87c5bd86e045873c231c14836e76a05c

SHA256
7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982

SHA512
26bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp6215.tmp

Filesize
1KB

MD5
821793d40de0973690ab1a011467bfd4

SHA1
d76ebeadd3688c6edc48bf07c3a34a961b57ae92

SHA256
d5685a775bab834f449da1d0ab79e51c1d084a593ce23eeb082bf9e1ebb0adff

SHA512
108b991e027ec6799e18fcdf34961ac121e024d62ab96973e9b5465801951cac25a3706e0de811e391992ef4ea6505705fb71412954c3789c82c194842fac54f

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp62D2.tmp

Filesize
1KB

MD5
e380299eb53398115b7125b2b75c4798

SHA1
ee59b86ea0abf4097ff94bd940521c583803b036

SHA256
edb658b6577a80126eaacdf2a566755b63d7b2438fe0bcf3aea83930036811f3

SHA512
d9e3f3b1370fe4fce4a631a5d0669cef34bfe83dec146b606eff562c7cc450639304a732104f425a7ccfdded58064f28a98434a59ed8d93b595d64d1e1a2dde1

Download Submit
memory/1632-145-0x0000000006EE0000-0x0000000006F46000-memory.dmp

Filesize
408KB

Download
memory/1632-138-0x0000000000000000-mapping.dmp

Download
memory/1632-139-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2312-137-0x0000000000000000-mapping.dmp

Download
memory/3424-143-0x0000000000000000-mapping.dmp

Download
memory/3576-141-0x0000000000000000-mapping.dmp

Download
memory/4512-132-0x0000000000500000-0x0000000000602000-memory.dmp

Filesize
1.0MB

Download
memory/4512-136-0x00000000077A0000-0x000000000783C000-memory.dmp

Filesize
624KB

Download
memory/4512-135-0x0000000005130000-0x000000000513A000-memory.dmp

Filesize
40KB

Download
memory/4512-134-0x0000000004FA0000-0x0000000005032000-memory.dmp

Filesize
584KB

Download
memory/4512-133-0x00000000054B0000-0x0000000005A54000-memory.dmp

Filesize
5.6MB

Download

description	pid	process	target process
PID 4512 wrote to memory of 2312	4512	33033d3ad58d7ea7014df1ed01f3a87d.exe	33033d3ad58d7ea7014df1ed01f3a87d.exe
PID 4512 wrote to memory of 2312	4512	33033d3ad58d7ea7014df1ed01f3a87d.exe	33033d3ad58d7ea7014df1ed01f3a87d.exe
PID 4512 wrote to memory of 2312	4512	33033d3ad58d7ea7014df1ed01f3a87d.exe	33033d3ad58d7ea7014df1ed01f3a87d.exe
PID 4512 wrote to memory of 1632	4512	33033d3ad58d7ea7014df1ed01f3a87d.exe	33033d3ad58d7ea7014df1ed01f3a87d.exe
PID 4512 wrote to memory of 1632	4512	33033d3ad58d7ea7014df1ed01f3a87d.exe	33033d3ad58d7ea7014df1ed01f3a87d.exe
PID 4512 wrote to memory of 1632	4512	33033d3ad58d7ea7014df1ed01f3a87d.exe	33033d3ad58d7ea7014df1ed01f3a87d.exe
PID 4512 wrote to memory of 1632	4512	33033d3ad58d7ea7014df1ed01f3a87d.exe	33033d3ad58d7ea7014df1ed01f3a87d.exe
PID 4512 wrote to memory of 1632	4512	33033d3ad58d7ea7014df1ed01f3a87d.exe	33033d3ad58d7ea7014df1ed01f3a87d.exe
PID 4512 wrote to memory of 1632	4512	33033d3ad58d7ea7014df1ed01f3a87d.exe	33033d3ad58d7ea7014df1ed01f3a87d.exe
PID 4512 wrote to memory of 1632	4512	33033d3ad58d7ea7014df1ed01f3a87d.exe	33033d3ad58d7ea7014df1ed01f3a87d.exe
PID 4512 wrote to memory of 1632	4512	33033d3ad58d7ea7014df1ed01f3a87d.exe	33033d3ad58d7ea7014df1ed01f3a87d.exe
PID 1632 wrote to memory of 3576	1632	33033d3ad58d7ea7014df1ed01f3a87d.exe	schtasks.exe
PID 1632 wrote to memory of 3576	1632	33033d3ad58d7ea7014df1ed01f3a87d.exe	schtasks.exe
PID 1632 wrote to memory of 3576	1632	33033d3ad58d7ea7014df1ed01f3a87d.exe	schtasks.exe
PID 1632 wrote to memory of 3424	1632	33033d3ad58d7ea7014df1ed01f3a87d.exe	schtasks.exe
PID 1632 wrote to memory of 3424	1632	33033d3ad58d7ea7014df1ed01f3a87d.exe	schtasks.exe
PID 1632 wrote to memory of 3424	1632	33033d3ad58d7ea7014df1ed01f3a87d.exe	schtasks.exe

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads