nanocore | 72aa6b57a853c9e9c39833e16e5a2dca88847e27cfe10d57175990b20555a894

General

Target

PO-13916654658867654342003.exe
Size

574KB
MD5

7ae160bfca29e0c7c3fb4a98a29b32d7
SHA1

49d5ca7f388c754d7f8a2723f154cf04a849487c
SHA256

f18fe72903701dbb74e8c8baadac476f740cd30fb6643e79a2320d168e7835c6
SHA512

1f7fe7428879702e4cac93e0fbd7075dd6839835b877bf075f5538c2593fee51352ca15bec7e811b64a8349d03669b11b1ae38933a071d6fb6c9655b77452713

Score

10^/10

nanocore evasion keylogger spyware stealer trojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

185.157.160.229:60006

neoncorex.duckdns.org:60006

Mutex

1d5c6a3e-60c1-4684-aee7-fbdc0338bfa0

Attributes

activate_away_mode
true
backup_connection_host
neoncorex.duckdns.org
backup_dns_server
8.8.4.4
buffer_size
65535
build_time
2021-07-29T18:43:26.772131836Z
bypass_user_account_control
true
bypass_user_account_control_data
clear_access_control
true
clear_zone_identifier
true
connect_delay
4000
connection_port
60006
default_group
NANOSHIELD
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
1d5c6a3e-60c1-4684-aee7-fbdc0338bfa0
mutex_timeout
5000
prevent_system_sleep
true
primary_connection_host
185.157.160.229
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

Processes:

dwrninstall.exedwrninstall.exe

pid process

3828 dwrninstall.exe
876 dwrninstall.exe
Checks whether UAC is enabled 1 TTPs 1 IoCs
evasion trojan

System Information Discovery
T1082

Processes:

RegAsm.exe

description ioc process

Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA RegAsm.exe

pid	process
3828	dwrninstall.exe
876	dwrninstall.exe

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

Suspicious use of SetThreadContext 3 IoCs

Processes:

PO-13916654658867654342003.exedwrninstall.exedwrninstall.exe

description	pid	process	target process
PID 1556 set thread context of 3888	1556	PO-13916654658867654342003.exe	RegAsm.exe
PID 3828 set thread context of 2312	3828	dwrninstall.exe	RegAsm.exe
PID 876 set thread context of 2468	876	dwrninstall.exe	RegAsm.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

Processes:

schtasks.exeschtasks.exeschtasks.exe

pid process

2564 schtasks.exe
2728 schtasks.exe
2744 schtasks.exe
Suspicious behavior: EnumeratesProcesses 3 IoCs

Processes:

RegAsm.exe

pid process

3888 RegAsm.exe
3888 RegAsm.exe
3888 RegAsm.exe
Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

RegAsm.exe

pid process

3888 RegAsm.exe

pid	process
2564	schtasks.exe
2728	schtasks.exe
2744	schtasks.exe

pid	process
3888	RegAsm.exe
3888	RegAsm.exe
3888	RegAsm.exe

pid	process
3888	RegAsm.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

Processes:

PO-13916654658867654342003.exeRegAsm.exedwrninstall.exedwrninstall.exe

description	pid	process
Token: SeDebugPrivilege	1556	PO-13916654658867654342003.exe
Token: SeDebugPrivilege	3888	RegAsm.exe
Token: SeDebugPrivilege	3828	dwrninstall.exe
Token: SeDebugPrivilege	876	dwrninstall.exe

Suspicious use of WriteProcessMemory 51 IoCs

Processes:

PO-13916654658867654342003.execmd.exedwrninstall.execmd.exedwrninstall.execmd.exe

description	pid	process	target process
PID 1556 wrote to memory of 3888	1556	PO-13916654658867654342003.exe	RegAsm.exe
PID 1556 wrote to memory of 3888	1556	PO-13916654658867654342003.exe	RegAsm.exe
PID 1556 wrote to memory of 3888	1556	PO-13916654658867654342003.exe	RegAsm.exe
PID 1556 wrote to memory of 3888	1556	PO-13916654658867654342003.exe	RegAsm.exe
PID 1556 wrote to memory of 3888	1556	PO-13916654658867654342003.exe	RegAsm.exe
PID 1556 wrote to memory of 3888	1556	PO-13916654658867654342003.exe	RegAsm.exe
PID 1556 wrote to memory of 3888	1556	PO-13916654658867654342003.exe	RegAsm.exe
PID 1556 wrote to memory of 3888	1556	PO-13916654658867654342003.exe	RegAsm.exe
PID 1556 wrote to memory of 4068	1556	PO-13916654658867654342003.exe	cmd.exe
PID 1556 wrote to memory of 4068	1556	PO-13916654658867654342003.exe	cmd.exe
PID 1556 wrote to memory of 4068	1556	PO-13916654658867654342003.exe	cmd.exe
PID 1556 wrote to memory of 64	1556	PO-13916654658867654342003.exe	cmd.exe
PID 1556 wrote to memory of 64	1556	PO-13916654658867654342003.exe	cmd.exe
PID 1556 wrote to memory of 64	1556	PO-13916654658867654342003.exe	cmd.exe
PID 4068 wrote to memory of 2564	4068	cmd.exe	schtasks.exe
PID 4068 wrote to memory of 2564	4068	cmd.exe	schtasks.exe
PID 4068 wrote to memory of 2564	4068	cmd.exe	schtasks.exe
PID 3828 wrote to memory of 2312	3828	dwrninstall.exe	RegAsm.exe
PID 3828 wrote to memory of 2312	3828	dwrninstall.exe	RegAsm.exe
PID 3828 wrote to memory of 2312	3828	dwrninstall.exe	RegAsm.exe
PID 3828 wrote to memory of 2312	3828	dwrninstall.exe	RegAsm.exe
PID 3828 wrote to memory of 2312	3828	dwrninstall.exe	RegAsm.exe
PID 3828 wrote to memory of 2312	3828	dwrninstall.exe	RegAsm.exe
PID 3828 wrote to memory of 2312	3828	dwrninstall.exe	RegAsm.exe
PID 3828 wrote to memory of 2312	3828	dwrninstall.exe	RegAsm.exe
PID 3828 wrote to memory of 3824	3828	dwrninstall.exe	cmd.exe
PID 3828 wrote to memory of 3824	3828	dwrninstall.exe	cmd.exe
PID 3828 wrote to memory of 3824	3828	dwrninstall.exe	cmd.exe
PID 3828 wrote to memory of 1644	3828	dwrninstall.exe	cmd.exe
PID 3828 wrote to memory of 1644	3828	dwrninstall.exe	cmd.exe
PID 3828 wrote to memory of 1644	3828	dwrninstall.exe	cmd.exe
PID 3824 wrote to memory of 2728	3824	cmd.exe	schtasks.exe
PID 3824 wrote to memory of 2728	3824	cmd.exe	schtasks.exe
PID 3824 wrote to memory of 2728	3824	cmd.exe	schtasks.exe
PID 876 wrote to memory of 2468	876	dwrninstall.exe	RegAsm.exe
PID 876 wrote to memory of 2468	876	dwrninstall.exe	RegAsm.exe
PID 876 wrote to memory of 2468	876	dwrninstall.exe	RegAsm.exe
PID 876 wrote to memory of 2468	876	dwrninstall.exe	RegAsm.exe
PID 876 wrote to memory of 2468	876	dwrninstall.exe	RegAsm.exe
PID 876 wrote to memory of 2468	876	dwrninstall.exe	RegAsm.exe
PID 876 wrote to memory of 2468	876	dwrninstall.exe	RegAsm.exe
PID 876 wrote to memory of 2468	876	dwrninstall.exe	RegAsm.exe
PID 876 wrote to memory of 2016	876	dwrninstall.exe	cmd.exe
PID 876 wrote to memory of 2016	876	dwrninstall.exe	cmd.exe
PID 876 wrote to memory of 2016	876	dwrninstall.exe	cmd.exe
PID 876 wrote to memory of 1060	876	dwrninstall.exe	cmd.exe
PID 876 wrote to memory of 1060	876	dwrninstall.exe	cmd.exe
PID 876 wrote to memory of 1060	876	dwrninstall.exe	cmd.exe
PID 2016 wrote to memory of 2744	2016	cmd.exe	schtasks.exe
PID 2016 wrote to memory of 2744	2016	cmd.exe	schtasks.exe
PID 2016 wrote to memory of 2744	2016	cmd.exe	schtasks.exe

C:\Users\Admin\AppData\Local\Temp\PO-13916654658867654342003.exe
"C:\Users\Admin\AppData\Local\Temp\PO-13916654658867654342003.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1556
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
  2⤵
  - Checks whether UAC is enabled
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of AdjustPrivilegeToken
  PID:3888
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c schtasks /create /sc minute /mo 1 /tn "Nano" /tr "'C:\Users\Admin\AppData\Roaming\dwrninstall\dwrninstall.exe'" /f
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:4068
- - C:\Windows\SysWOW64\schtasks.exe
    schtasks /create /sc minute /mo 1 /tn "Nano" /tr "'C:\Users\Admin\AppData\Roaming\dwrninstall\dwrninstall.exe'" /f
    3⤵
    - Creates scheduled task(s)
    PID:2564
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c copy "C:\Users\Admin\AppData\Local\Temp\PO-13916654658867654342003.exe" "C:\Users\Admin\AppData\Roaming\dwrninstall\dwrninstall.exe"
  2⤵
  PID:64

C:\Users\Admin\AppData\Roaming\dwrninstall\dwrninstall.exe
C:\Users\Admin\AppData\Roaming\dwrninstall\dwrninstall.exe
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3828
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
  2⤵
  PID:2312
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c schtasks /create /sc minute /mo 1 /tn "Nano" /tr "'C:\Users\Admin\AppData\Roaming\dwrninstall\dwrninstall.exe'" /f
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:3824
- - C:\Windows\SysWOW64\schtasks.exe
    schtasks /create /sc minute /mo 1 /tn "Nano" /tr "'C:\Users\Admin\AppData\Roaming\dwrninstall\dwrninstall.exe'" /f
    3⤵
    - Creates scheduled task(s)
    PID:2728
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c copy "C:\Users\Admin\AppData\Roaming\dwrninstall\dwrninstall.exe" "C:\Users\Admin\AppData\Roaming\dwrninstall\dwrninstall.exe"
  2⤵
  PID:1644

C:\Users\Admin\AppData\Roaming\dwrninstall\dwrninstall.exe
C:\Users\Admin\AppData\Roaming\dwrninstall\dwrninstall.exe
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:876
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
  2⤵
  PID:2468
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c schtasks /create /sc minute /mo 1 /tn "Nano" /tr "'C:\Users\Admin\AppData\Roaming\dwrninstall\dwrninstall.exe'" /f
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2016
- - C:\Windows\SysWOW64\schtasks.exe
    schtasks /create /sc minute /mo 1 /tn "Nano" /tr "'C:\Users\Admin\AppData\Roaming\dwrninstall\dwrninstall.exe'" /f
    3⤵
    - Creates scheduled task(s)
    PID:2744
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c copy "C:\Users\Admin\AppData\Roaming\dwrninstall\dwrninstall.exe" "C:\Users\Admin\AppData\Roaming\dwrninstall\dwrninstall.exe"
  2⤵
  PID:1060

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

Scheduled Task

1

T1053

Privilege Escalation

Scheduled Task

1

T1053

Defense Evasion

Credential Access

Discovery

System Information Discovery

2

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\RegAsm.exe.log

MD5
c3cc52ccca9ff2b6fa8d267fc350ca6b

SHA1
a68d4028333296d222e4afd75dea36fdc98d05f3

SHA256
3125b6071e2d78f575a06ed7ac32a83d9262ae64d1fa81ac43e8bfc1ef157c0e

SHA512
b0c7b2501b1a2c559795a9d178c0bbda0e03cbdbaaa2c4330ac1202a55373fe1b742078adcfa915bd6e805565a2daa6d35d64ef7a14ffcd09069f9ea6a691cc7

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\dwrninstall.exe.log

MD5
00885ae78269880b3e010fa6609b30b0

SHA1
988845c14adbd5cacfad623db58c24fd4cbb407d

SHA256
e3a913514aa7a48a5f2f70bb93f34a3cf136fbd0be52a893cc1aa1e249bdfad9

SHA512
ebd3af521ce449873822e17836e2416adecdfa5b1d8f19a32ccbc0a4e57c034c74b10465dec97fc14f578c928524eabd01b3a7a7ef85a2d93e83036048920f5d

Download Submit
C:\Users\Admin\AppData\Roaming\dwrninstall\dwrninstall.exe

MD5
7ae160bfca29e0c7c3fb4a98a29b32d7

SHA1
49d5ca7f388c754d7f8a2723f154cf04a849487c

SHA256
f18fe72903701dbb74e8c8baadac476f740cd30fb6643e79a2320d168e7835c6

SHA512
1f7fe7428879702e4cac93e0fbd7075dd6839835b877bf075f5538c2593fee51352ca15bec7e811b64a8349d03669b11b1ae38933a071d6fb6c9655b77452713

Download Submit
C:\Users\Admin\AppData\Roaming\dwrninstall\dwrninstall.exe

MD5
7ae160bfca29e0c7c3fb4a98a29b32d7

SHA1
49d5ca7f388c754d7f8a2723f154cf04a849487c

SHA256
f18fe72903701dbb74e8c8baadac476f740cd30fb6643e79a2320d168e7835c6

SHA512
1f7fe7428879702e4cac93e0fbd7075dd6839835b877bf075f5538c2593fee51352ca15bec7e811b64a8349d03669b11b1ae38933a071d6fb6c9655b77452713

Download Submit
C:\Users\Admin\AppData\Roaming\dwrninstall\dwrninstall.exe

MD5
7ae160bfca29e0c7c3fb4a98a29b32d7

SHA1
49d5ca7f388c754d7f8a2723f154cf04a849487c

SHA256
f18fe72903701dbb74e8c8baadac476f740cd30fb6643e79a2320d168e7835c6

SHA512
1f7fe7428879702e4cac93e0fbd7075dd6839835b877bf075f5538c2593fee51352ca15bec7e811b64a8349d03669b11b1ae38933a071d6fb6c9655b77452713

Download Submit
memory/64-132-0x0000000000000000-mapping.dmp

Download
memory/876-167-0x0000000004DE0000-0x0000000004DE1000-memory.dmp

Filesize
4KB

Download
memory/1060-177-0x0000000000000000-mapping.dmp

Download
memory/1556-121-0x00000000057B0000-0x00000000057B1000-memory.dmp

Filesize
4KB

Download
memory/1556-117-0x0000000005990000-0x0000000005991000-memory.dmp

Filesize
4KB

Download
memory/1556-115-0x0000000000BC0000-0x0000000000BC1000-memory.dmp

Filesize
4KB

Download
memory/1556-119-0x00000000053E0000-0x00000000053E1000-memory.dmp

Filesize
4KB

Download
memory/1556-118-0x0000000005490000-0x0000000005491000-memory.dmp

Filesize
4KB

Download
memory/1556-120-0x00000000053D0000-0x00000000053D1000-memory.dmp

Filesize
4KB

Download
memory/1644-155-0x0000000000000000-mapping.dmp

Download
memory/2016-176-0x0000000000000000-mapping.dmp

Download
memory/2312-148-0x000000000041E792-mapping.dmp

Download
memory/2312-158-0x0000000005550000-0x0000000005A4E000-memory.dmp

Filesize
5.0MB

Download
memory/2468-169-0x000000000041E792-mapping.dmp

Download
memory/2468-180-0x0000000005120000-0x000000000561E000-memory.dmp

Filesize
5.0MB

Download
memory/2564-133-0x0000000000000000-mapping.dmp

Download
memory/2728-156-0x0000000000000000-mapping.dmp

Download
memory/2744-178-0x0000000000000000-mapping.dmp

Download
memory/3824-154-0x0000000000000000-mapping.dmp

Download
memory/3828-140-0x0000000000FA0000-0x0000000000FA1000-memory.dmp

Filesize
4KB

Download
memory/3828-145-0x00000000049E0000-0x00000000049E1000-memory.dmp

Filesize
4KB

Download
memory/3888-128-0x0000000005600000-0x0000000005601000-memory.dmp

Filesize
4KB

Download
memory/3888-137-0x0000000005420000-0x00000000054B2000-memory.dmp

Filesize
584KB

Download
memory/3888-136-0x00000000063A0000-0x00000000063A3000-memory.dmp

Filesize
12KB

Download
memory/3888-135-0x0000000005A30000-0x0000000005A49000-memory.dmp

Filesize
100KB

Download
memory/3888-134-0x00000000057C0000-0x00000000057C5000-memory.dmp

Filesize
20KB

Download
memory/3888-129-0x0000000005420000-0x00000000054B2000-memory.dmp

Filesize
584KB

Download
memory/3888-123-0x000000000041E792-mapping.dmp

Download
memory/3888-122-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/4068-131-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads