nanocore | 54bf1a46ebdcca78b7dd2ef7a497aacf0cb6ed2745d64b296e98859f11c80154

General

Target

54bf1a46ebdcca78b7dd2ef7a497aacf0cb6ed2745d64b296e98859f11c80154N.exe
Size

210KB
MD5

18323bd9db3060c3ec9230d324c3b2c0
SHA1

7589b3a69d0e0e5ed00189b023933824c60cdf3c
SHA256

54bf1a46ebdcca78b7dd2ef7a497aacf0cb6ed2745d64b296e98859f11c80154
SHA512

9dc90a029531b76df44192d0788973266a3a38aae93f8a7f12b0d7dc6383d3496bef6b8f08d45cb51316c3457e880dd2d30a216675025cb13459f6362298e8fc
SSDEEP

3072:yzEqV6B1jHa6dtJ10jgvzcgi+oG/j9iaMP2s/HISv2X6ecnziHRCWuzu/gBuFAUG:yLV6Bta6dtJmakIM572GnWaQgyhMd

Score

10^/10

nanocore evasion keylogger persistence spyware stealer trojan

Malware Config

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

Processes:

54bf1a46ebdcca78b7dd2ef7a497aacf0cb6ed2745d64b296e98859f11c80154N.exe

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\WPA Subsystem = "C:\\Program Files\\WPA Subsystem\\wpass.exe"	54bf1a46ebdcca78b7dd2ef7a497aacf0cb6ed2745d64b296e98859f11c80154N.exe

Checks whether UAC is enabled 1 TTPs 1 IoCs

evasion trojan

System Information Discovery

T1082

Processes:

54bf1a46ebdcca78b7dd2ef7a497aacf0cb6ed2745d64b296e98859f11c80154N.exe

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	54bf1a46ebdcca78b7dd2ef7a497aacf0cb6ed2745d64b296e98859f11c80154N.exe

Drops file in Program Files directory 2 IoCs

Processes:

54bf1a46ebdcca78b7dd2ef7a497aacf0cb6ed2745d64b296e98859f11c80154N.exe

description	ioc	Process
File created	C:\Program Files\WPA Subsystem\wpass.exe	54bf1a46ebdcca78b7dd2ef7a497aacf0cb6ed2745d64b296e98859f11c80154N.exe
File opened for modification	C:\Program Files\WPA Subsystem\wpass.exe	54bf1a46ebdcca78b7dd2ef7a497aacf0cb6ed2745d64b296e98859f11c80154N.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 2 IoCs

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

persistence execution

Scheduled Task

T1053.005

Processes:

schtasks.exeschtasks.exe

pid	Process
4312	schtasks.exe
4132	schtasks.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

Processes:

54bf1a46ebdcca78b7dd2ef7a497aacf0cb6ed2745d64b296e98859f11c80154N.exe

pid	Process
4844	54bf1a46ebdcca78b7dd2ef7a497aacf0cb6ed2745d64b296e98859f11c80154N.exe
4844	54bf1a46ebdcca78b7dd2ef7a497aacf0cb6ed2745d64b296e98859f11c80154N.exe
4844	54bf1a46ebdcca78b7dd2ef7a497aacf0cb6ed2745d64b296e98859f11c80154N.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

54bf1a46ebdcca78b7dd2ef7a497aacf0cb6ed2745d64b296e98859f11c80154N.exe

pid	Process
4844	54bf1a46ebdcca78b7dd2ef7a497aacf0cb6ed2745d64b296e98859f11c80154N.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

54bf1a46ebdcca78b7dd2ef7a497aacf0cb6ed2745d64b296e98859f11c80154N.exe

description	pid	Process
Token: SeDebugPrivilege	4844	54bf1a46ebdcca78b7dd2ef7a497aacf0cb6ed2745d64b296e98859f11c80154N.exe
Token: SeDebugPrivilege	4844	54bf1a46ebdcca78b7dd2ef7a497aacf0cb6ed2745d64b296e98859f11c80154N.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

54bf1a46ebdcca78b7dd2ef7a497aacf0cb6ed2745d64b296e98859f11c80154N.exe

description	pid	Process	procid_target
PID 4844 wrote to memory of 4132	4844	54bf1a46ebdcca78b7dd2ef7a497aacf0cb6ed2745d64b296e98859f11c80154N.exe	82
PID 4844 wrote to memory of 4132	4844	54bf1a46ebdcca78b7dd2ef7a497aacf0cb6ed2745d64b296e98859f11c80154N.exe	82
PID 4844 wrote to memory of 4312	4844	54bf1a46ebdcca78b7dd2ef7a497aacf0cb6ed2745d64b296e98859f11c80154N.exe	84
PID 4844 wrote to memory of 4312	4844	54bf1a46ebdcca78b7dd2ef7a497aacf0cb6ed2745d64b296e98859f11c80154N.exe	84

Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
persistence

Query Registry
T1012

C:\Users\Admin\AppData\Local\Temp\54bf1a46ebdcca78b7dd2ef7a497aacf0cb6ed2745d64b296e98859f11c80154N.exe
"C:\Users\Admin\AppData\Local\Temp\54bf1a46ebdcca78b7dd2ef7a497aacf0cb6ed2745d64b296e98859f11c80154N.exe"
1⤵
- 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:4844
- C:\Windows\SYSTEM32\schtasks.exe
  "schtasks.exe" /create /f /tn "WPA Subsystem" /xml "C:\Users\Admin\AppData\Local\Temp\tmp60AE.tmp"
  2⤵
  - Scheduled Task/Job: Scheduled Task
  PID:4132
- C:\Windows\SYSTEM32\schtasks.exe
  "schtasks.exe" /create /f /tn "WPA Subsystem Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmp611C.tmp"
  2⤵
  - Scheduled Task/Job: Scheduled Task
  PID:4312

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmp60AE.tmp

Filesize
1KB

MD5
78b7deea88b4d507bf724df7785d21df

SHA1
4f9441ad9ff2f13b5da89498e9bb47b18a09b98c

SHA256
1595b43755bdbcefb7aeb79cf16b426fa98d3021dc986a501603dad3156f5c7d

SHA512
707ac62117261c411cdfc21c7fc7c8d3f2fa2e20a2dfd9008e18830229f6745fb41c86416b29fdfcb5dac7214a19e9e5926e215c940142020c19ac08ae146654

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp611C.tmp

Filesize
1KB

MD5
f8b4a088f8a23af5ab665d558da13b51

SHA1
d092ef34db6223767f42b180d3d4a01bc71d9116

SHA256
cdf22dfcbfbc3f203f91dd9b6746f3c7802e5b914105c27ea4f1e63a82bc4ca7

SHA512
b4a6aabb63c8f444082d7c1daf2698319293c79e94c90f8c3d7cd25ecba92f03497a68d3f7415d5f1a0f7b5c1f8dd2147da33ce782e6e71bd209470e540f1fdb

Download Submit
memory/4844-17-0x000000001D370000-0x000000001D38E000-memory.dmp

Filesize
120KB

Download
memory/4844-28-0x00007FFFFF640000-0x00007FFFFFFE1000-memory.dmp

Filesize
9.6MB

Download
memory/4844-4-0x000000001C860000-0x000000001C906000-memory.dmp

Filesize
664KB

Download
memory/4844-5-0x000000001C7A0000-0x000000001C7A8000-memory.dmp

Filesize
32KB

Download
memory/4844-6-0x00007FFFFF640000-0x00007FFFFFFE1000-memory.dmp

Filesize
9.6MB

Download
memory/4844-7-0x00007FFFFF640000-0x00007FFFFFFE1000-memory.dmp

Filesize
9.6MB

Download
memory/4844-2-0x00007FFFFF640000-0x00007FFFFFFE1000-memory.dmp

Filesize
9.6MB

Download
memory/4844-1-0x000000001C080000-0x000000001C54E000-memory.dmp

Filesize
4.8MB

Download
memory/4844-15-0x000000001D160000-0x000000001D16A000-memory.dmp

Filesize
40KB

Download
memory/4844-16-0x000000001C920000-0x000000001C92C000-memory.dmp

Filesize
48KB

Download
memory/4844-30-0x00007FFFFF640000-0x00007FFFFFFE1000-memory.dmp

Filesize
9.6MB

Download
memory/4844-3-0x000000001C5F0000-0x000000001C68C000-memory.dmp

Filesize
624KB

Download
memory/4844-21-0x00007FFFFF640000-0x00007FFFFFFE1000-memory.dmp

Filesize
9.6MB

Download
memory/4844-20-0x00007FFFFF640000-0x00007FFFFFFE1000-memory.dmp

Filesize
9.6MB

Download
memory/4844-19-0x000000001D4E0000-0x000000001D4EA000-memory.dmp

Filesize
40KB

Download
memory/4844-22-0x00007FFFFF640000-0x00007FFFFFFE1000-memory.dmp

Filesize
9.6MB

Download
memory/4844-23-0x00007FFFFF8F5000-0x00007FFFFF8F6000-memory.dmp

Filesize
4KB

Download
memory/4844-24-0x00007FFFFF640000-0x00007FFFFFFE1000-memory.dmp

Filesize
9.6MB

Download
memory/4844-25-0x00007FFFFF640000-0x00007FFFFFFE1000-memory.dmp

Filesize
9.6MB

Download
memory/4844-26-0x00007FFFFF640000-0x00007FFFFFFE1000-memory.dmp

Filesize
9.6MB

Download
memory/4844-27-0x00007FFFFF640000-0x00007FFFFFFE1000-memory.dmp

Filesize
9.6MB

Download
memory/4844-18-0x00007FFFFF640000-0x00007FFFFFFE1000-memory.dmp

Filesize
9.6MB

Download
memory/4844-29-0x00007FFFFF640000-0x00007FFFFFFE1000-memory.dmp

Filesize
9.6MB

Download
memory/4844-0-0x00007FFFFF8F5000-0x00007FFFFF8F6000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads