nanocore | 8ccef55df6fad5510b1b81c7973df1620d9c7d7504598e755f50c130d1a5ed2e

Analysis

max time kernel
127s
max time network
156s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
submitted
02-12-2022 09:13

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General

Target

download.exe
Size

203KB
MD5

c7db7aecb55a508371570b7008897c2d
SHA1

93fb24242e0157acd65ca704a090c054ccfcb841
SHA256

8ccef55df6fad5510b1b81c7973df1620d9c7d7504598e755f50c130d1a5ed2e
SHA512

0b4a3973fb571070d6f87e069ae3bac1abc39892b817f0cdeb61d59479970659def16e8c07f4f5aa79c3d2c83386743f8980dcbeaaf68e61837a47d2a95b1d15
SSDEEP

3072:MzEqV6B1jHa6dtJ10jgvzcgi+oG/j9iaMP2s/HIoySnfr0CEE9R4szJbGxBzU9yA:MLV6Bta6dtJmakIM5nnz0mJ+zAapx2

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

Processes:

download.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\UDP Service = "C:\\Program Files (x86)\\UDP Service\\udpsv.exe"	download.exe

Checks whether UAC is enabled 1 TTPs 1 IoCs
evasion trojan

System Information Discovery
T1082

Processes:

download.exe

description ioc process

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

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

Drops file in Program Files directory 2 IoCs

Processes:

download.exe

description	ioc	process
File created	C:\Program Files (x86)\UDP Service\udpsv.exe	download.exe
File opened for modification	C:\Program Files (x86)\UDP Service\udpsv.exe	download.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

604 schtasks.exe
1780 schtasks.exe
Suspicious behavior: EnumeratesProcesses 8 IoCs

Processes:

download.exe

pid process

1508 download.exe
1508 download.exe
1508 download.exe
1508 download.exe
1508 download.exe
1508 download.exe
1508 download.exe
1508 download.exe
Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

download.exe

pid process

1508 download.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

download.exe

description pid process

Token: SeDebugPrivilege 1508 download.exe

pid	process
604	schtasks.exe
1780	schtasks.exe

pid	process
1508	download.exe
1508	download.exe
1508	download.exe
1508	download.exe
1508	download.exe
1508	download.exe
1508	download.exe
1508	download.exe

pid	process
1508	download.exe

description	pid	process
Token: SeDebugPrivilege	1508	download.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

download.exe

description	pid	process	target process
PID 1508 wrote to memory of 604	1508	download.exe	schtasks.exe
PID 1508 wrote to memory of 604	1508	download.exe	schtasks.exe
PID 1508 wrote to memory of 604	1508	download.exe	schtasks.exe
PID 1508 wrote to memory of 604	1508	download.exe	schtasks.exe
PID 1508 wrote to memory of 1780	1508	download.exe	schtasks.exe
PID 1508 wrote to memory of 1780	1508	download.exe	schtasks.exe
PID 1508 wrote to memory of 1780	1508	download.exe	schtasks.exe
PID 1508 wrote to memory of 1780	1508	download.exe	schtasks.exe

C:\Users\Admin\AppData\Local\Temp\download.exe
"C:\Users\Admin\AppData\Local\Temp\download.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:1508

C:\Windows\SysWOW64\schtasks.exe
"schtasks.exe" /create /f /tn "UDP Service" /xml "C:\Users\Admin\AppData\Local\Temp\tmp9EC0.tmp"
2⤵
- Creates scheduled task(s)
PID:604

C:\Windows\SysWOW64\schtasks.exe
"schtasks.exe" /create /f /tn "UDP Service Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmpAA07.tmp"
2⤵
- Creates scheduled task(s)
PID:1780

Network

MITRE ATT&CK Matrix ATT&CK 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

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmp9EC0.tmp
Filesize
1KB

MD5
b8e4cf4ba028d5a6217f44c16cedd0ef

SHA1
886bc81c6b4e9c36825a3bb4d142836527492d16

SHA256
13c02c1aad0c4c93787dd39b1ecf279316207765fff90a468d020ba89fedcab0

SHA512
56979c996421ddbc09e693087301ac4f043bcfa88fdbd8afa8917518595b557b7240104ee9007009706a15e47e98b81052f142d1d271a9bf9007a744c4c8fa7c

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpAA07.tmp
Filesize
1KB

MD5
0a24db62cb5b84309c4803346caaa25d

SHA1
67660778f61bb44168c33ed3fe56ed86cf9583e8

SHA256
38d38647af394a04ee6add9f05c43244f04e64a6b96257f4b241a5038efa82df

SHA512
d25d9df063f44595d5e0bf890755bd387655131ff369eeedf3d11ffcc6202ca4455bbb33a8a926dd06839cbd1ddec3d06809b3c66a82c6518aa14beaa469a548

Download Submit
memory/604-56-0x0000000000000000-mapping.dmp

Download
memory/1508-54-0x0000000075451000-0x0000000075453000-memory.dmp

Filesize
8KB

Download
memory/1508-55-0x00000000741F0000-0x000000007479B000-memory.dmp

Filesize
5.7MB

Download
memory/1508-60-0x00000000741F0000-0x000000007479B000-memory.dmp

Filesize
5.7MB

Download
memory/1780-58-0x0000000000000000-mapping.dmp

Download