nanocore | d47feda760c21df116a2fd8efebcd862604c8cbea8b2af2adb829e32762c8d71

General

Target

b9f29bfdedef84ef3c987240a6f16ea1.exe
Size

216KB
MD5

b9f29bfdedef84ef3c987240a6f16ea1
SHA1

b613154bd48067d186303b3bbfb5bdbcb8a0501a
SHA256

d47feda760c21df116a2fd8efebcd862604c8cbea8b2af2adb829e32762c8d71
SHA512

9435bb04fb08e2be0cdc124387ec74750f95c459d0b2e1dbfb1d507f07125a14ad60a07223c5bcf69a38d9a408d1485faf900f031214afcf58d7d27061257f43
SSDEEP

3072:lKIdcXBReITIQSU9IQDJR3/kAZvnYZ/HqLxm1KUz11R0OFdPovgaVyaTwL4pFuEn:lKIcXvFb99IQTcAUK8px1RpHoXxVFNn

Score

10^/10

nanocore keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

chinomso.duckdns.org:7688

Mutex

bee718f3-e47a-44f8-955e-2fe2c6c0351c

Attributes

activate_away_mode
true
backup_connection_host
chinomso.duckdns.org
backup_dns_server
chinomso.duckdns.org
buffer_size
65535
build_time
2021-01-17T14:27:22.436365536Z
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
7688
default_group
Default
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
bee718f3-e47a-44f8-955e-2fe2c6c0351c
mutex_timeout
5000
prevent_system_sleep
false
primary_connection_host
chinomso.duckdns.org
primary_dns_server
chinomso.duckdns.org
request_elevation
false
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

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\SMTP Subsystem = "C:\\Program Files (x86)\\SMTP Subsystem\\smtpss.exe"	MSBuild.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2172 set thread context of 368	2172	b9f29bfdedef84ef3c987240a6f16ea1.exe	98

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\SMTP Subsystem\smtpss.exe	MSBuild.exe
File opened for modification	C:\Program Files (x86)\SMTP Subsystem\smtpss.exe	MSBuild.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/Job

T1053

pid	Process
1412	schtasks.exe
4848	schtasks.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
368	MSBuild.exe
368	MSBuild.exe
368	MSBuild.exe
368	MSBuild.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
368	MSBuild.exe

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
2172	b9f29bfdedef84ef3c987240a6f16ea1.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	368	MSBuild.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 2172 wrote to memory of 368	2172	b9f29bfdedef84ef3c987240a6f16ea1.exe	98
PID 2172 wrote to memory of 368	2172	b9f29bfdedef84ef3c987240a6f16ea1.exe	98
PID 2172 wrote to memory of 368	2172	b9f29bfdedef84ef3c987240a6f16ea1.exe	98
PID 2172 wrote to memory of 368	2172	b9f29bfdedef84ef3c987240a6f16ea1.exe	98
PID 368 wrote to memory of 1412	368	MSBuild.exe	102
PID 368 wrote to memory of 1412	368	MSBuild.exe	102
PID 368 wrote to memory of 1412	368	MSBuild.exe	102
PID 368 wrote to memory of 4848	368	MSBuild.exe	104
PID 368 wrote to memory of 4848	368	MSBuild.exe	104
PID 368 wrote to memory of 4848	368	MSBuild.exe	104

C:\Users\Admin\AppData\Local\Temp\b9f29bfdedef84ef3c987240a6f16ea1.exe
"C:\Users\Admin\AppData\Local\Temp\b9f29bfdedef84ef3c987240a6f16ea1.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:2172
- C:\Windows\Microsoft.NET\Framework\v2.0.50727\MSBuild.exe
  "C:\Users\Admin\AppData\Local\Temp\b9f29bfdedef84ef3c987240a6f16ea1.exe"
  2⤵
  - Adds Run key to start application
  - Drops file in Program Files directory
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:368
- - C:\Windows\SysWOW64\schtasks.exe
    "schtasks.exe" /create /f /tn "SMTP Subsystem" /xml "C:\Users\Admin\AppData\Local\Temp\tmp3F3.tmp"
    3⤵
    - Creates scheduled task(s)
    PID:1412
- - C:\Windows\SysWOW64\schtasks.exe
    "schtasks.exe" /create /f /tn "SMTP Subsystem Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmp684.tmp"
    3⤵
    - Creates scheduled task(s)
    PID:4848

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=4212 --field-trial-handle=2276,i,5697607538120380977,9987005253899555344,262144 --variations-seed-version /prefetch:8
1⤵
PID:4956

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

1

T1053

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

Scheduled Task/Job

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

Scheduled Task/Job

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmp3F3.tmp

Filesize
1KB

MD5
ae766004c0d8792953bafffe8f6a2e3b

SHA1
14b12f27543a401e2fe0af8052e116cab0032426

SHA256
1abdd9b6a6b84e4ba1af1282dc84ce276c59ba253f4c4af05fea498a4fd99540

SHA512
e530da4a5d4336fc37838d0e93b5eb3804b9c489c71f6954a47fc81a4c655bb72ec493e109cf96e6e3617d7623ac80697ad3bbd5ffc6281bafc8b34dca5e6567

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp684.tmp

Filesize
1KB

MD5
0339b45ef206f4becc88be0d65e24b9e

SHA1
6503a1851f4ccd8c80a31f96bd7ae40d962c9fad

SHA256
3d568a47a8944a47f4aed6982755ac7ff7dda469cc1c81c213ecaa5d89de1f83

SHA512
c98f4513db34d50510dd986e0d812545c442bd5bef26932032b165759627fab4e00c95fe907ab3416a8a1042bfa77aa516c479f1ff7d1ec2f21ae66df8f72551

Download Submit
memory/368-3-0x0000000075270000-0x0000000075821000-memory.dmp

Filesize
5.7MB

Download
memory/368-4-0x0000000075270000-0x0000000075821000-memory.dmp

Filesize
5.7MB

Download
memory/368-5-0x0000000000F70000-0x0000000000F80000-memory.dmp

Filesize
64KB

Download
memory/368-2-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/368-13-0x0000000000F70000-0x0000000000F80000-memory.dmp

Filesize
64KB

Download
memory/368-14-0x0000000075270000-0x0000000075821000-memory.dmp

Filesize
5.7MB

Download
memory/368-15-0x0000000075270000-0x0000000075821000-memory.dmp

Filesize
5.7MB

Download
memory/368-16-0x0000000000F70000-0x0000000000F80000-memory.dmp

Filesize
64KB

Download
memory/368-17-0x0000000000F70000-0x0000000000F80000-memory.dmp

Filesize
64KB

Download
memory/2172-0-0x0000000000470000-0x0000000000476000-memory.dmp

Filesize
24KB

Download
memory/2172-1-0x0000000000AA0000-0x0000000000AA2000-memory.dmp

Filesize
8KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads