Malware Analysis Report

2024-08-06 15:22

Sample ID 240520-zhvzdsgf7v
Target 2f777e82b65e659254dfd9995d1009dea0d5fa999fa73121b9490fdc3c7505d7
SHA256 2f777e82b65e659254dfd9995d1009dea0d5fa999fa73121b9490fdc3c7505d7
Tags
persistence nanocore evasion keylogger spyware stealer trojan
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK Matrix

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

2f777e82b65e659254dfd9995d1009dea0d5fa999fa73121b9490fdc3c7505d7

Threat Level: Known bad

The file 2f777e82b65e659254dfd9995d1009dea0d5fa999fa73121b9490fdc3c7505d7 was found to be: Known bad.

Malicious Activity Summary

persistence nanocore evasion keylogger spyware stealer trojan

NanoCore

Loads dropped DLL

Checks computer location settings

Executes dropped EXE

Adds Run key to start application

Checks whether UAC is enabled

Suspicious use of SetThreadContext

Enumerates physical storage devices

Unsigned PE

Suspicious use of WriteProcessMemory

Suspicious use of AdjustPrivilegeToken

Suspicious behavior: GetForegroundWindowSpam

Suspicious behavior: EnumeratesProcesses

MITRE ATT&CK Matrix V13

Initial Access
TA0001
Execution
TA0002
Persistence
TA0003
Boot or Logon Autostart Execution
T1547
Registry Run Keys / Startup Folder
T1547.001
Privilege Escalation
TA0004
Boot or Logon Autostart Execution
T1547
Registry Run Keys / Startup Folder
T1547.001
Defense Evasion
TA0005
Modify Registry
T1112
Credential Access
TA0006
Discovery
TA0007
System Information Discovery
T1082
Query Registry
T1012
Lateral Movement
TA0008
Collection
TA0009
Exfiltration
TA0010
Command and Control
TA0011
Impact
TA0040
Resource Development
TA0042
Reconnaissance
TA0043

Analysis: static1

Detonation Overview

Reported

2024-05-20 20:43

Signatures

Unsigned PE

Description Indicator Process Target
N/A N/A N/A N/A

Analysis: behavioral1

Detonation Overview

Submitted

2024-05-20 20:43

Reported

2024-05-20 20:46

Platform

win7-20240221-en

Max time kernel

120s

Max time network

127s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2f777e82b65e659254dfd9995d1009dea0d5fa999fa73121b9490fdc3c7505d7.exe"

Signatures

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe N/A

Loads dropped DLL

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\2f777e82b65e659254dfd9995d1009dea0d5fa999fa73121b9490fdc3c7505d7.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe N/A

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000\Software\Microsoft\Windows\CurrentVersion\Run\b1b2dqljdx3 = "C:\\Users\\Admin\\AppData\\Roaming\\b1b2dqljdx3\\a1punf5t2of.exe" C:\Users\Admin\AppData\Local\Temp\2f777e82b65e659254dfd9995d1009dea0d5fa999fa73121b9490fdc3c7505d7.exe N/A

Enumerates physical storage devices

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2488 wrote to memory of 2532 N/A C:\Users\Admin\AppData\Local\Temp\2f777e82b65e659254dfd9995d1009dea0d5fa999fa73121b9490fdc3c7505d7.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
PID 2488 wrote to memory of 2532 N/A C:\Users\Admin\AppData\Local\Temp\2f777e82b65e659254dfd9995d1009dea0d5fa999fa73121b9490fdc3c7505d7.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
PID 2488 wrote to memory of 2532 N/A C:\Users\Admin\AppData\Local\Temp\2f777e82b65e659254dfd9995d1009dea0d5fa999fa73121b9490fdc3c7505d7.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
PID 2488 wrote to memory of 2532 N/A C:\Users\Admin\AppData\Local\Temp\2f777e82b65e659254dfd9995d1009dea0d5fa999fa73121b9490fdc3c7505d7.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
PID 2488 wrote to memory of 2532 N/A C:\Users\Admin\AppData\Local\Temp\2f777e82b65e659254dfd9995d1009dea0d5fa999fa73121b9490fdc3c7505d7.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
PID 2488 wrote to memory of 2532 N/A C:\Users\Admin\AppData\Local\Temp\2f777e82b65e659254dfd9995d1009dea0d5fa999fa73121b9490fdc3c7505d7.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
PID 2488 wrote to memory of 2532 N/A C:\Users\Admin\AppData\Local\Temp\2f777e82b65e659254dfd9995d1009dea0d5fa999fa73121b9490fdc3c7505d7.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
PID 2532 wrote to memory of 2080 N/A C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
PID 2532 wrote to memory of 2080 N/A C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
PID 2532 wrote to memory of 2080 N/A C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
PID 2532 wrote to memory of 2080 N/A C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
PID 2532 wrote to memory of 2080 N/A C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
PID 2532 wrote to memory of 2080 N/A C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
PID 2532 wrote to memory of 2080 N/A C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe

Processes

C:\Users\Admin\AppData\Local\Temp\2f777e82b65e659254dfd9995d1009dea0d5fa999fa73121b9490fdc3c7505d7.exe

"C:\Users\Admin\AppData\Local\Temp\2f777e82b65e659254dfd9995d1009dea0d5fa999fa73121b9490fdc3c7505d7.exe"

C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe

"C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe"

C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe

"C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe"

Network

N/A

Files

memory/2488-0-0x00000000749A1000-0x00000000749A2000-memory.dmp

memory/2488-1-0x00000000749A0000-0x0000000074F4B000-memory.dmp

memory/2488-2-0x00000000749A0000-0x0000000074F4B000-memory.dmp

memory/2488-3-0x00000000749A0000-0x0000000074F4B000-memory.dmp

\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe

MD5 6208d3e542dd5ee17931a1db0f5df7eb
SHA1 ff016be2838b07b2c3895aa10b6ed8c9cc53230d
SHA256 df7a0178e7341507a5342b9f4534a47064d406caf1671e3c85cf4f3c71197c11
SHA512 27992c80156e7992620a7e41b1b3f727978523a44d1767d0864b3c1632b4e19d1d5fbf31c071c3ceed5098e457f89b54eaa8066845625f90c36a21e1ae2ae463

memory/2488-12-0x00000000749A0000-0x0000000074F4B000-memory.dmp

memory/2532-14-0x00000000749A0000-0x0000000074F4B000-memory.dmp

memory/2532-15-0x00000000749A0000-0x0000000074F4B000-memory.dmp

memory/2532-13-0x00000000749A0000-0x0000000074F4B000-memory.dmp

memory/2532-16-0x00000000749A0000-0x0000000074F4B000-memory.dmp

memory/2532-18-0x00000000749A0000-0x0000000074F4B000-memory.dmp

memory/2532-19-0x00000000749A0000-0x0000000074F4B000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-05-20 20:43

Reported

2024-05-20 20:46

Platform

win10v2004-20240508-en

Max time kernel

147s

Max time network

158s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2f777e82b65e659254dfd9995d1009dea0d5fa999fa73121b9490fdc3c7505d7.exe"

Signatures

NanoCore

keylogger trojan stealer spyware nanocore

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\2f777e82b65e659254dfd9995d1009dea0d5fa999fa73121b9490fdc3c7505d7.exe N/A

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe N/A

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\b1b2dqljdx3 = "C:\\Users\\Admin\\AppData\\Roaming\\b1b2dqljdx3\\a1punf5t2of.exe" C:\Users\Admin\AppData\Local\Temp\2f777e82b65e659254dfd9995d1009dea0d5fa999fa73121b9490fdc3c7505d7.exe N/A

Checks whether UAC is enabled

evasion trojan
Description Indicator Process Target
Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe N/A

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 452 set thread context of 1648 N/A C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe

Enumerates physical storage devices

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe N/A

Suspicious behavior: GetForegroundWindowSpam

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1116 wrote to memory of 452 N/A C:\Users\Admin\AppData\Local\Temp\2f777e82b65e659254dfd9995d1009dea0d5fa999fa73121b9490fdc3c7505d7.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
PID 1116 wrote to memory of 452 N/A C:\Users\Admin\AppData\Local\Temp\2f777e82b65e659254dfd9995d1009dea0d5fa999fa73121b9490fdc3c7505d7.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
PID 1116 wrote to memory of 452 N/A C:\Users\Admin\AppData\Local\Temp\2f777e82b65e659254dfd9995d1009dea0d5fa999fa73121b9490fdc3c7505d7.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
PID 452 wrote to memory of 1648 N/A C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
PID 452 wrote to memory of 1648 N/A C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
PID 452 wrote to memory of 1648 N/A C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
PID 452 wrote to memory of 1648 N/A C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
PID 452 wrote to memory of 1648 N/A C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
PID 452 wrote to memory of 1648 N/A C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
PID 452 wrote to memory of 1648 N/A C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
PID 452 wrote to memory of 1648 N/A C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe

Processes

C:\Users\Admin\AppData\Local\Temp\2f777e82b65e659254dfd9995d1009dea0d5fa999fa73121b9490fdc3c7505d7.exe

"C:\Users\Admin\AppData\Local\Temp\2f777e82b65e659254dfd9995d1009dea0d5fa999fa73121b9490fdc3c7505d7.exe"

C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe

"C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe"

C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe

"C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 97.17.167.52.in-addr.arpa udp
US 8.8.8.8:53 68.159.190.20.in-addr.arpa udp
NL 23.62.61.97:443 www.bing.com tcp
US 8.8.8.8:53 97.61.62.23.in-addr.arpa udp
US 8.8.8.8:53 149.220.183.52.in-addr.arpa udp
US 8.8.8.8:53 sysupdate24.ddns.net udp
US 8.8.8.8:53 198.187.3.20.in-addr.arpa udp
US 8.8.8.8:53 157.123.68.40.in-addr.arpa udp
US 8.8.8.8:53 88.156.103.20.in-addr.arpa udp
US 8.8.8.8:53 tse1.mm.bing.net udp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 8.8.8.8:53 26.35.223.20.in-addr.arpa udp
US 8.8.8.8:53 200.197.79.204.in-addr.arpa udp

Files

memory/1116-0-0x0000000075132000-0x0000000075133000-memory.dmp

memory/1116-1-0x0000000075130000-0x00000000756E1000-memory.dmp

memory/1116-2-0x0000000075130000-0x00000000756E1000-memory.dmp

memory/1116-3-0x0000000075130000-0x00000000756E1000-memory.dmp

C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe

MD5 30d0c2b8fc7b63de0818e1ebf7aace31
SHA1 d204d427f2ce08bc61fad989e7edfc8d3bdda70c
SHA256 9974ac9f10f8acdec3571f99b4d77451a7659af44a26f22cd1fcf2393328c6a1
SHA512 96f834b418d69add29d97ea3696767825dcc4653009976dcf1096dc07dd4fef7046f42f09f7ae7442eeb6b05c056c5da30f152d7f63b46950fe42a6c0a9edd2b

memory/1116-18-0x0000000075130000-0x00000000756E1000-memory.dmp

memory/452-17-0x0000000075130000-0x00000000756E1000-memory.dmp

memory/452-19-0x0000000075130000-0x00000000756E1000-memory.dmp

memory/452-20-0x0000000075130000-0x00000000756E1000-memory.dmp

memory/1648-21-0x0000000000400000-0x0000000000438000-memory.dmp

memory/1648-23-0x0000000000400000-0x0000000000438000-memory.dmp

memory/1648-22-0x0000000000400000-0x0000000000438000-memory.dmp

memory/1648-26-0x0000000075130000-0x00000000756E1000-memory.dmp

memory/1648-27-0x0000000075130000-0x00000000756E1000-memory.dmp

memory/1648-28-0x0000000075130000-0x00000000756E1000-memory.dmp

memory/1648-30-0x0000000075130000-0x00000000756E1000-memory.dmp

memory/452-31-0x0000000075130000-0x00000000756E1000-memory.dmp

memory/452-33-0x0000000075130000-0x00000000756E1000-memory.dmp

memory/1648-34-0x0000000075130000-0x00000000756E1000-memory.dmp

memory/1648-35-0x0000000075130000-0x00000000756E1000-memory.dmp