Malware Analysis Report

2025-06-15 23:16

Sample ID 241102-2tahyaxhnn
Target 4106de61a00c8e6b599cb74e7d30cc3304e283be19432b56d1721130dadfc37c
SHA256 4106de61a00c8e6b599cb74e7d30cc3304e283be19432b56d1721130dadfc37c
Tags
blackmoon banker discovery persistence trojan
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V15

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

4106de61a00c8e6b599cb74e7d30cc3304e283be19432b56d1721130dadfc37c

Threat Level: Known bad

The file 4106de61a00c8e6b599cb74e7d30cc3304e283be19432b56d1721130dadfc37c was found to be: Known bad.

Malicious Activity Summary

blackmoon banker discovery persistence trojan

Blackmoon, KrBanker

Detect Blackmoon payload

Blackmoon family

Adds policy Run key to start application

Checks computer location settings

Loads dropped DLL

Executes dropped EXE

Unsigned PE

Enumerates physical storage devices

System Location Discovery: System Language Discovery

Suspicious use of WriteProcessMemory

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

Suspicious use of SetWindowsHookEx

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-11-02 22:51

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-11-02 22:51

Reported

2024-11-02 22:54

Platform

win7-20240903-en

Max time kernel

117s

Max time network

123s

Command Line

"C:\Users\Admin\AppData\Local\Temp\4106de61a00c8e6b599cb74e7d30cc3304e283be19432b56d1721130dadfc37c.exe"

Signatures

Blackmoon family

blackmoon

Blackmoon, KrBanker

trojan banker blackmoon

Detect Blackmoon payload

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

Adds policy Run key to start application

persistence
Description Indicator Process Target
Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run C:\Users\Admin\AppData\Roaming\aokhn\3NAv63Z_d9bKH0\39x8hD6qVoR.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run\39x8hD6qVoR = "C:\\Users\\Admin\\AppData\\Roaming\\aokhn\\3NAv63Z_d9bKH0\\39x8hD6qVoR.exe" C:\Users\Admin\AppData\Roaming\aokhn\3NAv63Z_d9bKH0\39x8hD6qVoR.exe N/A

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Roaming\aokhn\3NAv63Z_d9bKH0\39x8hD6qVoR.exe N/A

Loads dropped DLL

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Roaming\aokhn\3NAv63Z_d9bKH0\39x8hD6qVoR.exe N/A

Enumerates physical storage devices

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Roaming\aokhn\3NAv63Z_d9bKH0\39x8hD6qVoR.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Roaming\aokhn\3NAv63Z_d9bKH0\39x8hD6qVoR.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2324 wrote to memory of 1832 N/A C:\Users\Admin\AppData\Local\Temp\4106de61a00c8e6b599cb74e7d30cc3304e283be19432b56d1721130dadfc37c.exe C:\Users\Admin\AppData\Local\Temp\4106de61a00c8e6b599cb74e7d30cc3304e283be19432b56d1721130dadfc37c.exe
PID 2324 wrote to memory of 1832 N/A C:\Users\Admin\AppData\Local\Temp\4106de61a00c8e6b599cb74e7d30cc3304e283be19432b56d1721130dadfc37c.exe C:\Users\Admin\AppData\Local\Temp\4106de61a00c8e6b599cb74e7d30cc3304e283be19432b56d1721130dadfc37c.exe
PID 2324 wrote to memory of 1832 N/A C:\Users\Admin\AppData\Local\Temp\4106de61a00c8e6b599cb74e7d30cc3304e283be19432b56d1721130dadfc37c.exe C:\Users\Admin\AppData\Local\Temp\4106de61a00c8e6b599cb74e7d30cc3304e283be19432b56d1721130dadfc37c.exe
PID 1832 wrote to memory of 2708 N/A C:\Users\Admin\AppData\Local\Temp\4106de61a00c8e6b599cb74e7d30cc3304e283be19432b56d1721130dadfc37c.exe C:\Users\Admin\AppData\Roaming\aokhn\3NAv63Z_d9bKH0\39x8hD6qVoR.exe
PID 1832 wrote to memory of 2708 N/A C:\Users\Admin\AppData\Local\Temp\4106de61a00c8e6b599cb74e7d30cc3304e283be19432b56d1721130dadfc37c.exe C:\Users\Admin\AppData\Roaming\aokhn\3NAv63Z_d9bKH0\39x8hD6qVoR.exe
PID 1832 wrote to memory of 2708 N/A C:\Users\Admin\AppData\Local\Temp\4106de61a00c8e6b599cb74e7d30cc3304e283be19432b56d1721130dadfc37c.exe C:\Users\Admin\AppData\Roaming\aokhn\3NAv63Z_d9bKH0\39x8hD6qVoR.exe
PID 1832 wrote to memory of 2708 N/A C:\Users\Admin\AppData\Local\Temp\4106de61a00c8e6b599cb74e7d30cc3304e283be19432b56d1721130dadfc37c.exe C:\Users\Admin\AppData\Roaming\aokhn\3NAv63Z_d9bKH0\39x8hD6qVoR.exe

Processes

C:\Users\Admin\AppData\Local\Temp\4106de61a00c8e6b599cb74e7d30cc3304e283be19432b56d1721130dadfc37c.exe

"C:\Users\Admin\AppData\Local\Temp\4106de61a00c8e6b599cb74e7d30cc3304e283be19432b56d1721130dadfc37c.exe"

C:\Users\Admin\AppData\Local\Temp\4106de61a00c8e6b599cb74e7d30cc3304e283be19432b56d1721130dadfc37c.exe

C:\Users\Admin\AppData\Local\Temp\4106de61a00c8e6b599cb74e7d30cc3304e283be19432b56d1721130dadfc37c.exe 45063C065A06530675066306740675065A06470662066B066F0668065A0647067606760642066706720667065A065406690667066B066F06680661065A06670669066D066E0668065A063506480647067006300635065C06590662063F0664064D064E0636065A0635063F067E063E066E06420630067706500669065406--aa`

C:\Users\Admin\AppData\Roaming\aokhn\3NAv63Z_d9bKH0\39x8hD6qVoR.exe

"C:\Users\Admin\AppData\Roaming\aokhn\3NAv63Z_d9bKH0\39x8hD6qVoR.exe"

Network

Country Destination Domain Proto
HK 154.39.238.102:8080 154.39.238.102 tcp
HK 154.39.238.102:12345 tcp

Files

C:\Users\Admin\AppData\Roaming\aokhn\3NAv63Z_d9bKH0\39x8hD6qVoR.exe

MD5 ae1817f4788e6733af457bd5dff46289
SHA1 32ba5f36e80c28f256204fa3abda0ab2774d8af8
SHA256 08ccea61d93eb33675dffdeda73003d57b8f6710db4f9d98a5ec398a377101cd
SHA512 6c73589e5b2a540fa116cf11f8871acd4b0c391a22f6adad28ac07b9144150762faf6153cde82a2b661f93d4b9c36a73aff5438ebe31515869e79a397a6d1d01

C:\Users\Admin\AppData\Roaming\aokhn\3NAv63Z_d9bKH0\Microsoft.WindowsAppRuntime.Bootstrap.dll

MD5 5f8ed487eb810823682db34b48e9dc2a
SHA1 6a71057639c8e2689285ae188bb24a0e9779d344
SHA256 9c7117275638d9381bdb0ef53f589bd046bc43fb1f209c88763975804c13b55f
SHA512 6f1d3894652f8f6de6bbc866aceba31957707960f2912f297a214c9e46b1be752f63370c4ae84e57182b4583898bdc6a9e673d84060398e6c9b2fe6feeb9626c

memory/2708-11-0x0000000000110000-0x0000000000111000-memory.dmp

memory/2708-12-0x0000000000100000-0x0000000000101000-memory.dmp

memory/2708-13-0x0000000000120000-0x0000000000121000-memory.dmp

memory/2708-14-0x0000000002210000-0x00000000022F7000-memory.dmp

memory/2708-15-0x0000000002210000-0x00000000022F7000-memory.dmp

memory/2708-17-0x0000000002210000-0x00000000022F7000-memory.dmp

C:\Users\Admin\AppData\Roaming\aokhn\3NAv63Z_d9bKH0\39x8hD6qVoR.txt

MD5 d1a1666b76cf5e9d8bd4f19e37801225
SHA1 e5bff206b78273c0b9fa12521915d1b66c0c6c2c
SHA256 c4db940cd209c6f53e65ea5ae2171e80273b9ad7c7a8756d70a74fdda7b74019
SHA512 c34b4c9e25adb903fe8c13a2e4841f5dbd666f5285559da21e1dbb4fdafe72154ac52d4e99d628de47744db4d73edd554c22184528001a4b29c284ae163ad6f2

memory/2708-18-0x0000000002210000-0x00000000022F7000-memory.dmp

memory/2708-19-0x00000000042E0000-0x00000000044F1000-memory.dmp

memory/2708-24-0x00000000045D0000-0x00000000046BB000-memory.dmp

memory/2708-23-0x0000000002750000-0x00000000027A6000-memory.dmp

memory/2708-25-0x00000000045D0000-0x00000000046BB000-memory.dmp

memory/2708-28-0x00000000036B0000-0x0000000003749000-memory.dmp

memory/2708-31-0x0000000005000000-0x0000000005175000-memory.dmp

memory/2708-29-0x0000000005000000-0x0000000005175000-memory.dmp

memory/2708-32-0x0000000004500000-0x0000000004552000-memory.dmp

memory/2708-33-0x0000000000370000-0x0000000000371000-memory.dmp

memory/2708-34-0x00000000042E0000-0x00000000044F1000-memory.dmp

memory/2708-35-0x0000000004500000-0x0000000004552000-memory.dmp

memory/2708-36-0x00000000042E0000-0x00000000044F1000-memory.dmp

memory/2708-37-0x0000000002750000-0x00000000027A6000-memory.dmp

memory/2708-38-0x00000000045D0000-0x00000000046BB000-memory.dmp

memory/2708-39-0x0000000005000000-0x0000000005175000-memory.dmp

memory/2708-40-0x00000000036B0000-0x0000000003749000-memory.dmp

memory/2708-41-0x0000000004500000-0x0000000004552000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-11-02 22:51

Reported

2024-11-02 22:54

Platform

win10v2004-20241007-en

Max time kernel

141s

Max time network

143s

Command Line

"C:\Users\Admin\AppData\Local\Temp\4106de61a00c8e6b599cb74e7d30cc3304e283be19432b56d1721130dadfc37c.exe"

Signatures

Blackmoon family

blackmoon

Blackmoon, KrBanker

trojan banker blackmoon

Detect Blackmoon payload

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

Adds policy Run key to start application

persistence
Description Indicator Process Target
Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run C:\Users\Admin\AppData\Roaming\aokhn\gnc0dKM_b33jE4rm\7Z53jCaD9.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run\7Z53jCaD9 = "C:\\Users\\Admin\\AppData\\Roaming\\aokhn\\gnc0dKM_b33jE4rm\\7Z53jCaD9.exe" C:\Users\Admin\AppData\Roaming\aokhn\gnc0dKM_b33jE4rm\7Z53jCaD9.exe N/A

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\4106de61a00c8e6b599cb74e7d30cc3304e283be19432b56d1721130dadfc37c.exe N/A

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Roaming\aokhn\gnc0dKM_b33jE4rm\7Z53jCaD9.exe N/A

Loads dropped DLL

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Roaming\aokhn\gnc0dKM_b33jE4rm\7Z53jCaD9.exe N/A

Enumerates physical storage devices

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Roaming\aokhn\gnc0dKM_b33jE4rm\7Z53jCaD9.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Roaming\aokhn\gnc0dKM_b33jE4rm\7Z53jCaD9.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\4106de61a00c8e6b599cb74e7d30cc3304e283be19432b56d1721130dadfc37c.exe

"C:\Users\Admin\AppData\Local\Temp\4106de61a00c8e6b599cb74e7d30cc3304e283be19432b56d1721130dadfc37c.exe"

C:\Users\Admin\AppData\Local\Temp\4106de61a00c8e6b599cb74e7d30cc3304e283be19432b56d1721130dadfc37c.exe

C:\Users\Admin\AppData\Local\Temp\4106de61a00c8e6b599cb74e7d30cc3304e283be19432b56d1721130dadfc37c.exe 45063C065A06530675066306740675065A06470662066B066F0668065A0647067606760642066706720667065A065406690667066B066F06680661065A06670669066D066E0668065A06610668066506360662064D064B0659066406350635066C064306320674066B065A0631065C06330635066C064506670642063F06--aa`

C:\Users\Admin\AppData\Roaming\aokhn\gnc0dKM_b33jE4rm\7Z53jCaD9.exe

"C:\Users\Admin\AppData\Roaming\aokhn\gnc0dKM_b33jE4rm\7Z53jCaD9.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 58.55.71.13.in-addr.arpa udp
US 8.8.8.8:53 g.bing.com udp
US 150.171.27.10:443 g.bing.com tcp
US 8.8.8.8:53 68.209.201.84.in-addr.arpa udp
US 8.8.8.8:53 74.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 217.106.137.52.in-addr.arpa udp
US 8.8.8.8:53 232.168.11.51.in-addr.arpa udp
US 8.8.8.8:53 56.163.245.4.in-addr.arpa udp
US 8.8.8.8:53 15.164.165.52.in-addr.arpa udp
HK 154.39.238.102:8080 154.39.238.102 tcp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 102.238.39.154.in-addr.arpa udp
HK 154.39.238.102:12345 tcp
US 8.8.8.8:53 83.210.23.2.in-addr.arpa udp
US 8.8.8.8:53 43.229.111.52.in-addr.arpa udp
US 8.8.8.8:53 55.36.223.20.in-addr.arpa udp
US 8.8.8.8:53 tse1.mm.bing.net udp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 8.8.8.8:53 10.28.171.150.in-addr.arpa udp

Files

C:\Users\Admin\AppData\Roaming\aokhn\gnc0dKM_b33jE4rm\7Z53jCaD9.exe

MD5 ae1817f4788e6733af457bd5dff46289
SHA1 32ba5f36e80c28f256204fa3abda0ab2774d8af8
SHA256 08ccea61d93eb33675dffdeda73003d57b8f6710db4f9d98a5ec398a377101cd
SHA512 6c73589e5b2a540fa116cf11f8871acd4b0c391a22f6adad28ac07b9144150762faf6153cde82a2b661f93d4b9c36a73aff5438ebe31515869e79a397a6d1d01

C:\Users\Admin\AppData\Roaming\aokhn\gnc0dKM_b33jE4rm\Microsoft.WindowsAppRuntime.Bootstrap.dll

MD5 5f8ed487eb810823682db34b48e9dc2a
SHA1 6a71057639c8e2689285ae188bb24a0e9779d344
SHA256 9c7117275638d9381bdb0ef53f589bd046bc43fb1f209c88763975804c13b55f
SHA512 6f1d3894652f8f6de6bbc866aceba31957707960f2912f297a214c9e46b1be752f63370c4ae84e57182b4583898bdc6a9e673d84060398e6c9b2fe6feeb9626c

memory/388-14-0x00000000007E0000-0x00000000007E1000-memory.dmp

memory/388-15-0x0000000000530000-0x0000000000531000-memory.dmp

memory/388-16-0x0000000000880000-0x0000000000881000-memory.dmp

memory/388-18-0x00000000029F0000-0x0000000002AD7000-memory.dmp

memory/388-17-0x00000000029F0000-0x0000000002AD7000-memory.dmp

memory/388-20-0x00000000029F0000-0x0000000002AD7000-memory.dmp

C:\Users\Admin\AppData\Roaming\aokhn\gnc0dKM_b33jE4rm\7Z53jCaD9.txt

MD5 d1a1666b76cf5e9d8bd4f19e37801225
SHA1 e5bff206b78273c0b9fa12521915d1b66c0c6c2c
SHA256 c4db940cd209c6f53e65ea5ae2171e80273b9ad7c7a8756d70a74fdda7b74019
SHA512 c34b4c9e25adb903fe8c13a2e4841f5dbd666f5285559da21e1dbb4fdafe72154ac52d4e99d628de47744db4d73edd554c22184528001a4b29c284ae163ad6f2

memory/388-21-0x00000000029F0000-0x0000000002AD7000-memory.dmp

memory/388-22-0x0000000003EC0000-0x00000000040D1000-memory.dmp

memory/388-26-0x00000000042F0000-0x00000000043DB000-memory.dmp

memory/388-28-0x00000000049B0000-0x0000000004B25000-memory.dmp

memory/388-30-0x00000000040F0000-0x00000000040F1000-memory.dmp

memory/388-31-0x0000000003EC0000-0x00000000040D1000-memory.dmp

memory/388-32-0x0000000004600000-0x0000000004652000-memory.dmp

memory/388-33-0x0000000003EC0000-0x00000000040D1000-memory.dmp