Malware Analysis Report

2024-11-30 21:27

Sample ID 231226-vgd72aebgk
Target 7e7645b86e265b69aed08c4852fe6291
SHA256 e0980b4994c3d61ec8c3ab1db13ef837487bd2e209e97a4ad4708211d9d4d712
Tags
dridex botnet evasion payload trojan persistence
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

e0980b4994c3d61ec8c3ab1db13ef837487bd2e209e97a4ad4708211d9d4d712

Threat Level: Known bad

The file 7e7645b86e265b69aed08c4852fe6291 was found to be: Known bad.

Malicious Activity Summary

dridex botnet evasion payload trojan persistence

Dridex

Dridex payload

Dridex Shellcode

Loads dropped DLL

Executes dropped EXE

Checks whether UAC is enabled

Adds Run key to start application

Unsigned PE

Suspicious use of FindShellTrayWindow

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

Uses Task Scheduler COM API

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2023-12-26 16:57

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2023-12-26 16:57

Reported

2023-12-28 06:02

Platform

win7-20231215-en

Max time kernel

12s

Max time network

149s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\7e7645b86e265b69aed08c4852fe6291.dll,#1

Signatures

Dridex

botnet dridex

Dridex Shellcode

botnet payload
Description Indicator Process Target
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Dridex payload

botnet payload
Description Indicator Process Target
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Checks whether UAC is enabled

evasion trojan
Description Indicator Process Target
Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA C:\Windows\system32\rundll32.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Windows\system32\rundll32.exe N/A
N/A N/A C:\Windows\system32\rundll32.exe N/A
N/A N/A C:\Windows\system32\rundll32.exe N/A
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Processes

C:\Windows\system32\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\7e7645b86e265b69aed08c4852fe6291.dll,#1

C:\Windows\system32\slui.exe

C:\Windows\system32\slui.exe

C:\Users\Admin\AppData\Local\T8dJPz2\slui.exe

C:\Users\Admin\AppData\Local\T8dJPz2\slui.exe

C:\Users\Admin\AppData\Local\yoADsHxAC\wisptis.exe

C:\Users\Admin\AppData\Local\yoADsHxAC\wisptis.exe

C:\Windows\system32\wisptis.exe

C:\Windows\system32\wisptis.exe

C:\Users\Admin\AppData\Local\Nc2VO\msdtc.exe

C:\Users\Admin\AppData\Local\Nc2VO\msdtc.exe

C:\Windows\system32\msdtc.exe

C:\Windows\system32\msdtc.exe

C:\Users\Admin\AppData\Local\nKRz0o\vmicsvc.exe

C:\Users\Admin\AppData\Local\nKRz0o\vmicsvc.exe

C:\Windows\system32\vmicsvc.exe

C:\Windows\system32\vmicsvc.exe

Network

N/A

Files

memory/3064-0-0x000007FEF6030000-0x000007FEF6149000-memory.dmp

memory/3064-1-0x0000000000110000-0x0000000000117000-memory.dmp

memory/1316-3-0x0000000077306000-0x0000000077307000-memory.dmp

memory/1316-4-0x0000000002B40000-0x0000000002B41000-memory.dmp

memory/1316-7-0x0000000140000000-0x0000000140119000-memory.dmp

memory/1316-8-0x0000000140000000-0x0000000140119000-memory.dmp

memory/1316-15-0x0000000140000000-0x0000000140119000-memory.dmp

memory/1316-17-0x0000000140000000-0x0000000140119000-memory.dmp

memory/1316-20-0x0000000140000000-0x0000000140119000-memory.dmp

memory/1316-19-0x0000000140000000-0x0000000140119000-memory.dmp

memory/1316-18-0x0000000002B20000-0x0000000002B27000-memory.dmp

memory/1316-27-0x0000000140000000-0x0000000140119000-memory.dmp

memory/1316-29-0x00000000775A0000-0x00000000775A2000-memory.dmp

memory/1316-28-0x0000000077570000-0x0000000077572000-memory.dmp

memory/1316-16-0x0000000140000000-0x0000000140119000-memory.dmp

memory/1316-14-0x0000000140000000-0x0000000140119000-memory.dmp

memory/1316-39-0x0000000140000000-0x0000000140119000-memory.dmp

memory/1316-38-0x0000000140000000-0x0000000140119000-memory.dmp

memory/1316-13-0x0000000140000000-0x0000000140119000-memory.dmp

memory/1316-12-0x0000000140000000-0x0000000140119000-memory.dmp

memory/1316-11-0x0000000140000000-0x0000000140119000-memory.dmp

memory/1316-10-0x0000000140000000-0x0000000140119000-memory.dmp

memory/1316-9-0x0000000140000000-0x0000000140119000-memory.dmp

memory/1316-6-0x0000000140000000-0x0000000140119000-memory.dmp

memory/3064-47-0x000007FEF6030000-0x000007FEF6149000-memory.dmp

memory/1316-53-0x0000000077306000-0x0000000077307000-memory.dmp

memory/1996-66-0x000007FEF6B40000-0x000007FEF6C5A000-memory.dmp

memory/1996-69-0x000007FEF6B40000-0x000007FEF6C5A000-memory.dmp

memory/1996-65-0x0000000000410000-0x0000000000417000-memory.dmp

memory/1556-80-0x000007FEF6030000-0x000007FEF614A000-memory.dmp

memory/1556-83-0x000007FEF6030000-0x000007FEF614A000-memory.dmp

memory/1556-79-0x00000000003E0000-0x00000000003E7000-memory.dmp

memory/2272-193-0x000007FEF6860000-0x000007FEF697A000-memory.dmp

memory/2272-192-0x0000000000070000-0x0000000000077000-memory.dmp

memory/2272-196-0x000007FEF6860000-0x000007FEF697A000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2023-12-26 16:57

Reported

2023-12-28 06:00

Platform

win10v2004-20231215-en

Max time kernel

133s

Max time network

125s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\7e7645b86e265b69aed08c4852fe6291.dll,#1

Signatures

Dridex

botnet dridex

Dridex Shellcode

botnet payload
Description Indicator Process Target
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Dridex payload

botnet payload
Description Indicator Process Target
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Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-1497073144-2389943819-3385106915-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Kqgfxymewp = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\Proof\\59w7Pw\\rdpclip.exe" N/A 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\Local\rN1c7\rdpclip.exe N/A
Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA C:\Users\Admin\AppData\Local\151\cmstp.exe N/A
Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA C:\Windows\system32\rundll32.exe N/A
Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA C:\Users\Admin\AppData\Local\ePXXSj8w\wbengine.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Windows\system32\rundll32.exe N/A
N/A N/A C:\Windows\system32\rundll32.exe N/A
N/A N/A C:\Windows\system32\rundll32.exe N/A
N/A N/A C:\Windows\system32\rundll32.exe N/A
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Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeShutdownPrivilege N/A N/A N/A
Token: SeCreatePagefilePrivilege N/A N/A N/A
Token: SeShutdownPrivilege N/A N/A N/A
Token: SeCreatePagefilePrivilege N/A N/A N/A

Suspicious use of FindShellTrayWindow

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

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 3448 wrote to memory of 4032 N/A N/A C:\Windows\system32\wbengine.exe
PID 3448 wrote to memory of 4032 N/A N/A C:\Windows\system32\wbengine.exe
PID 3448 wrote to memory of 3500 N/A N/A C:\Users\Admin\AppData\Local\ePXXSj8w\wbengine.exe
PID 3448 wrote to memory of 3500 N/A N/A C:\Users\Admin\AppData\Local\ePXXSj8w\wbengine.exe
PID 3448 wrote to memory of 4952 N/A N/A C:\Windows\system32\rdpclip.exe
PID 3448 wrote to memory of 4952 N/A N/A C:\Windows\system32\rdpclip.exe
PID 3448 wrote to memory of 4040 N/A N/A C:\Users\Admin\AppData\Local\rN1c7\rdpclip.exe
PID 3448 wrote to memory of 4040 N/A N/A C:\Users\Admin\AppData\Local\rN1c7\rdpclip.exe
PID 3448 wrote to memory of 4748 N/A N/A C:\Windows\system32\cmstp.exe
PID 3448 wrote to memory of 4748 N/A N/A C:\Windows\system32\cmstp.exe
PID 3448 wrote to memory of 4276 N/A N/A C:\Users\Admin\AppData\Local\151\cmstp.exe
PID 3448 wrote to memory of 4276 N/A N/A C:\Users\Admin\AppData\Local\151\cmstp.exe

Uses Task Scheduler COM API

persistence

Processes

C:\Windows\system32\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\7e7645b86e265b69aed08c4852fe6291.dll,#1

C:\Users\Admin\AppData\Local\ePXXSj8w\wbengine.exe

C:\Users\Admin\AppData\Local\ePXXSj8w\wbengine.exe

C:\Windows\system32\wbengine.exe

C:\Windows\system32\wbengine.exe

C:\Users\Admin\AppData\Local\rN1c7\rdpclip.exe

C:\Users\Admin\AppData\Local\rN1c7\rdpclip.exe

C:\Windows\system32\rdpclip.exe

C:\Windows\system32\rdpclip.exe

C:\Users\Admin\AppData\Local\151\cmstp.exe

C:\Users\Admin\AppData\Local\151\cmstp.exe

C:\Windows\system32\cmstp.exe

C:\Windows\system32\cmstp.exe

Network

Country Destination Domain Proto
US 8.8.8.8:53 84.177.190.20.in-addr.arpa udp
US 8.8.8.8:53 59.128.231.4.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 9.228.82.20.in-addr.arpa udp
US 8.8.8.8:53 194.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 55.36.223.20.in-addr.arpa udp
US 8.8.8.8:53 41.110.16.96.in-addr.arpa udp
US 8.8.8.8:53 103.169.127.40.in-addr.arpa udp
US 8.8.8.8:53 198.187.3.20.in-addr.arpa udp
US 8.8.8.8:53 18.134.221.88.in-addr.arpa udp
US 8.8.8.8:53 180.178.17.96.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 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 8.8.8.8:53 200.197.79.204.in-addr.arpa udp

Files

memory/3292-0-0x00007FF987870000-0x00007FF987989000-memory.dmp

memory/3292-2-0x000002F0A10B0000-0x000002F0A10B7000-memory.dmp

memory/3448-8-0x00007FF9912EA000-0x00007FF9912EB000-memory.dmp

memory/3448-18-0x0000000140000000-0x0000000140119000-memory.dmp

memory/3448-20-0x0000000140000000-0x0000000140119000-memory.dmp

memory/3448-29-0x00007FF992A50000-0x00007FF992A60000-memory.dmp

memory/3448-38-0x0000000140000000-0x0000000140119000-memory.dmp

memory/3448-28-0x00007FF992A60000-0x00007FF992A70000-memory.dmp

memory/3448-27-0x0000000140000000-0x0000000140119000-memory.dmp

memory/3448-19-0x0000000000AF0000-0x0000000000AF7000-memory.dmp

memory/3448-17-0x0000000140000000-0x0000000140119000-memory.dmp

memory/3448-16-0x0000000140000000-0x0000000140119000-memory.dmp

memory/3448-15-0x0000000140000000-0x0000000140119000-memory.dmp

memory/3448-14-0x0000000140000000-0x0000000140119000-memory.dmp

memory/3448-13-0x0000000140000000-0x0000000140119000-memory.dmp

memory/3448-12-0x0000000140000000-0x0000000140119000-memory.dmp

memory/3448-11-0x0000000140000000-0x0000000140119000-memory.dmp

memory/3448-10-0x0000000140000000-0x0000000140119000-memory.dmp

memory/3448-9-0x0000000140000000-0x0000000140119000-memory.dmp

memory/3448-7-0x0000000140000000-0x0000000140119000-memory.dmp

memory/3448-6-0x0000000140000000-0x0000000140119000-memory.dmp

memory/3448-5-0x0000000140000000-0x0000000140119000-memory.dmp

memory/3448-3-0x00000000029A0000-0x00000000029A1000-memory.dmp

memory/3292-41-0x00007FF987870000-0x00007FF987989000-memory.dmp

memory/3500-48-0x00007FF974930000-0x00007FF974A4A000-memory.dmp

memory/3500-53-0x00007FF974930000-0x00007FF974A4A000-memory.dmp

memory/3500-50-0x000002C097C90000-0x000002C097C97000-memory.dmp

memory/4040-69-0x00007FF974930000-0x00007FF974A4A000-memory.dmp

memory/4040-66-0x0000025D17CD0000-0x0000025D17CD7000-memory.dmp

memory/4276-83-0x0000025600330000-0x0000025600337000-memory.dmp

memory/4276-86-0x00007FF974930000-0x00007FF974A4A000-memory.dmp

C:\Users\Admin\AppData\Roaming\Microsoft\Proof\kbISvKG\XmlLite.dll

MD5 d465079a62622c3894e644d3b59e31c8
SHA1 58842196b79d9e1299e310e94a803bf245898cbe
SHA256 6aead4e3b6d7bf7000ed3d462d6f18507b4302806dc1c738ebd7c13c5519a146
SHA512 d61c3e4a5ba06e02db09c1941eb6b1df7c9243a8528a2a4792f1532d1c4ca4e3481524b1ad702638a2d92450597045697744b7a7f8f250fb1836969a192af4c3

C:\Users\Admin\AppData\Roaming\Microsoft\Proof\59w7Pw\WTSAPI32.dll

MD5 df592eea3fa83e64d1d1685224242d52
SHA1 f6dfd7883bba096273d91ae6dac6bea43a9fde9a
SHA256 297293d8c707ceb3c2fd63c10e596b18705ab849660ec228eeed3b78a1cd0a68
SHA512 f07a198d267b488a01d214b76b6808cec80748c6dd0824684f6161e1ad50e6ab15d479b00f235467708e06a7ea4cb008fa1691a86867f88a8dd4e257287d0625

C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Accessibility\E8PdapiDMJq\VERSION.dll

MD5 957d8ffe1faf0fdddd6a06957860c3a3
SHA1 fa21e34011676c63a3f6f44937cddc080d6261bb
SHA256 45e34220c7919c825c15ef45645cf4aac140cb7461fd72b80850e07b9f9a0cc3
SHA512 e6947c861abcf6c63f452fc348246ba553612aa93c80e4346a79a2687f104c6a5657b2dab58d007634ec11e4cdb6e0ea06dc780fa011b0de498df1b0ca3cb426