nanocore | 86016f9f3443fd0a79162579f2d359b1150e84182f9e3c162a2fb4932ccc2e23

Analysis

max time kernel
147s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20230221-en
resource tags

arch:x64arch:x86image:win10v2004-20230221-enlocale:en-usos:windows10-2004-x64system
submitted
29/05/2023, 11:46

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General

Target
adb719d2a3c51a77ab1ed355f91d3ca2.exe
Size 210KB
Sample230529-nw95pacb2s
SHA256 86016f9f3443fd0a79162579f2d359b1150e84182f9e3c162a2fb4932ccc2e23
MD5 adb719d2a3c51a77ab1ed355f91d3ca2
SHA1 488faf72df7a8fd8e47e71b98d1149b0f4e6950b
SHA512 e4969ecc71b1f364780eef72bc3d86641188af916ac06697aa03037b0d923e907ec94ea25bbfe3681da91985604f64d2da9f4155ee1b24bb054aadee2b4906e7
SSDEEP 6144:gLV6Bta6dtJmakIM5sx/r1+Fw1VRQRnuDoPvEPWNSnswy:gLV6BtpmkHVYFSgRnrvEuNSW
MD5 SHA1 SHA512 SSDEEP

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

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\NAT Service = "C:\\Program Files (x86)\\NAT Service\\natsvc.exe"	adb719d2a3c51a77ab1ed355f91d3ca2.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	adb719d2a3c51a77ab1ed355f91d3ca2.exe

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\NAT Service\natsvc.exe	adb719d2a3c51a77ab1ed355f91d3ca2.exe
File opened for modification	C:\Program Files (x86)\NAT Service\natsvc.exe	adb719d2a3c51a77ab1ed355f91d3ca2.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
4856	schtasks.exe
4260	schtasks.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
2580	adb719d2a3c51a77ab1ed355f91d3ca2.exe
2580	adb719d2a3c51a77ab1ed355f91d3ca2.exe
2580	adb719d2a3c51a77ab1ed355f91d3ca2.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2580	adb719d2a3c51a77ab1ed355f91d3ca2.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2580	adb719d2a3c51a77ab1ed355f91d3ca2.exe
Token: SeDebugPrivilege	2580	adb719d2a3c51a77ab1ed355f91d3ca2.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2580 wrote to memory of 4856	2580	adb719d2a3c51a77ab1ed355f91d3ca2.exe	84
PID 2580 wrote to memory of 4856	2580	adb719d2a3c51a77ab1ed355f91d3ca2.exe	84
PID 2580 wrote to memory of 4856	2580	adb719d2a3c51a77ab1ed355f91d3ca2.exe	84
PID 2580 wrote to memory of 4260	2580	adb719d2a3c51a77ab1ed355f91d3ca2.exe	86
PID 2580 wrote to memory of 4260	2580	adb719d2a3c51a77ab1ed355f91d3ca2.exe	86
PID 2580 wrote to memory of 4260	2580	adb719d2a3c51a77ab1ed355f91d3ca2.exe	86

C:\Users\Admin\AppData\Local\Temp\adb719d2a3c51a77ab1ed355f91d3ca2.exe
"C:\Users\Admin\AppData\Local\Temp\adb719d2a3c51a77ab1ed355f91d3ca2.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:2580
- C:\Windows\SysWOW64\schtasks.exe
  "schtasks.exe" /create /f /tn "NAT Service" /xml "C:\Users\Admin\AppData\Local\Temp\tmp70D0.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:4856
- C:\Windows\SysWOW64\schtasks.exe
  "schtasks.exe" /create /f /tn "NAT Service Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmp71AB.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:4260

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

tmp70D0.tmp

Path C:\Users\Admin\AppData\Local\Temp\tmp70D0.tmp
Size 1KB
SHA256 ff901aa86cdc480d5939901e19b537fc1bdb38e666d77cea7a01f1e38dbacdb5
MD5 2e28a7122081c48b97d60d86ba0ccfb7
SHA1 b8137c6ae738579203e9d8c60e00c7c197cdbcb9
SHA512 c173c67c89e5a0e2aa5d7c8c92bc4af47f08730d56a658a8d9b8f4b1c2db7d0add1cb3071dbe4c8adaf818b66d10f5bd13cdb307659d4ee8558d99712e1a70ba
MD5 SHA1 SHA512

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tmp71AB.tmp

Path C:\Users\Admin\AppData\Local\Temp\tmp71AB.tmp
Size 1KB
SHA256 185deb301fb4155d92e158bad5a52722c63ae7399a5b9d3d875050d5389b933a
MD5 45cb9fac03bbbeb9a6e82b85eb3efbda
SHA1 4d6c00b68434d11f346ce844ccbc2ed7b7d4acff
SHA512 00713c53d7193660ba223a47fa46225cb6d870ea5ea794f703efc73e21e6e01b7283dac5be3d5280e553b922521e32bc7db591bf471bd7673a1a0b62b198073b
MD5 SHA1 SHA512

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memory/2580-133-0x0000000001160000-0x0000000001170000-memory.dmp

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memory/2580-141-0x0000000001160000-0x0000000001170000-memory.dmp

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memory/2580-142-0x0000000001160000-0x0000000001170000-memory.dmp

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memory/2580-143-0x0000000001160000-0x0000000001170000-memory.dmp

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