Malware Analysis Report

2024-11-30 21:31

Sample ID 231231-ea2rracaep
Target 26d16df1bc3dace3f361fc79ef505512
SHA256 7185f39390b4c5a4429378b1a099e01212e4db51d01d5330f5f04bb525aa6be5
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

7185f39390b4c5a4429378b1a099e01212e4db51d01d5330f5f04bb525aa6be5

Threat Level: Known bad

The file 26d16df1bc3dace3f361fc79ef505512 was found to be: Known bad.

Malicious Activity Summary

dridex botnet evasion payload trojan persistence

Dridex

Dridex Shellcode

Executes dropped EXE

Loads dropped DLL

Adds Run key to start application

Checks whether UAC is enabled

Unsigned PE

Suspicious use of AdjustPrivilegeToken

Suspicious behavior: EnumeratesProcesses

Suspicious use of FindShellTrayWindow

Suspicious use of WriteProcessMemory

Uses Task Scheduler COM API

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2023-12-31 03:45

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2023-12-31 03:45

Reported

2024-01-02 03:19

Platform

win7-20231215-en

Max time kernel

3s

Max time network

118s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\26d16df1bc3dace3f361fc79ef505512.dll,#1

Signatures

Dridex

botnet dridex

Dridex Shellcode

botnet payload
Description Indicator Process Target
N/A N/A 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:\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

Processes

C:\Windows\system32\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\26d16df1bc3dace3f361fc79ef505512.dll,#1

C:\Users\Admin\AppData\Local\s6SPOKq\cmstp.exe

C:\Users\Admin\AppData\Local\s6SPOKq\cmstp.exe

C:\Windows\system32\cmstp.exe

C:\Windows\system32\cmstp.exe

C:\Users\Admin\AppData\Local\XGxSieOh8\fvenotify.exe

C:\Users\Admin\AppData\Local\XGxSieOh8\fvenotify.exe

C:\Windows\system32\fvenotify.exe

C:\Windows\system32\fvenotify.exe

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

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

C:\Windows\system32\wisptis.exe

C:\Windows\system32\wisptis.exe

Network

N/A

Files

memory/3020-1-0x0000000140000000-0x00000001401F1000-memory.dmp

memory/3020-0-0x0000000000230000-0x0000000000237000-memory.dmp

memory/1232-4-0x0000000076FC6000-0x0000000076FC7000-memory.dmp

memory/1232-10-0x0000000140000000-0x00000001401F1000-memory.dmp

memory/1232-17-0x0000000140000000-0x00000001401F1000-memory.dmp

memory/1232-25-0x0000000140000000-0x00000001401F1000-memory.dmp

memory/1232-32-0x0000000140000000-0x00000001401F1000-memory.dmp

memory/1232-34-0x0000000002D10000-0x0000000002D17000-memory.dmp

memory/1232-41-0x0000000140000000-0x00000001401F1000-memory.dmp

memory/1232-45-0x0000000077330000-0x0000000077332000-memory.dmp

memory/1232-52-0x0000000140000000-0x00000001401F1000-memory.dmp

memory/1232-42-0x00000000771D1000-0x00000000771D2000-memory.dmp

memory/1232-33-0x0000000140000000-0x00000001401F1000-memory.dmp

memory/1232-31-0x0000000140000000-0x00000001401F1000-memory.dmp

memory/1232-58-0x0000000140000000-0x00000001401F1000-memory.dmp

memory/2752-75-0x0000000140000000-0x00000001401F2000-memory.dmp

memory/2752-71-0x0000000140000000-0x00000001401F2000-memory.dmp

memory/2752-70-0x0000000000180000-0x0000000000187000-memory.dmp

memory/1232-61-0x0000000140000000-0x00000001401F1000-memory.dmp

memory/1232-30-0x0000000140000000-0x00000001401F1000-memory.dmp

memory/1232-29-0x0000000140000000-0x00000001401F1000-memory.dmp

memory/1232-28-0x0000000140000000-0x00000001401F1000-memory.dmp

memory/1232-27-0x0000000140000000-0x00000001401F1000-memory.dmp

memory/1232-26-0x0000000140000000-0x00000001401F1000-memory.dmp

memory/1232-24-0x0000000140000000-0x00000001401F1000-memory.dmp

memory/1232-23-0x0000000140000000-0x00000001401F1000-memory.dmp

memory/1232-22-0x0000000140000000-0x00000001401F1000-memory.dmp

memory/1232-21-0x0000000140000000-0x00000001401F1000-memory.dmp

memory/1232-20-0x0000000140000000-0x00000001401F1000-memory.dmp

memory/1232-19-0x0000000140000000-0x00000001401F1000-memory.dmp

memory/1232-18-0x0000000140000000-0x00000001401F1000-memory.dmp

memory/1232-16-0x0000000140000000-0x00000001401F1000-memory.dmp

memory/1232-15-0x0000000140000000-0x00000001401F1000-memory.dmp

memory/1232-14-0x0000000140000000-0x00000001401F1000-memory.dmp

memory/1232-13-0x0000000140000000-0x00000001401F1000-memory.dmp

memory/1232-12-0x0000000140000000-0x00000001401F1000-memory.dmp

memory/2052-89-0x0000000000090000-0x0000000000097000-memory.dmp

memory/2052-92-0x0000000140000000-0x00000001401F2000-memory.dmp

memory/1232-11-0x0000000140000000-0x00000001401F1000-memory.dmp

memory/1232-9-0x0000000140000000-0x00000001401F1000-memory.dmp

memory/3020-8-0x0000000140000000-0x00000001401F1000-memory.dmp

memory/1232-7-0x0000000140000000-0x00000001401F1000-memory.dmp

memory/1232-5-0x0000000002DF0000-0x0000000002DF1000-memory.dmp

memory/3032-113-0x0000000000330000-0x0000000000337000-memory.dmp

memory/3032-116-0x0000000140000000-0x00000001401F2000-memory.dmp

memory/1232-139-0x0000000076FC6000-0x0000000076FC7000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2023-12-31 03:45

Reported

2024-01-02 03:20

Platform

win10v2004-20231215-en

Max time kernel

86s

Max time network

171s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\26d16df1bc3dace3f361fc79ef505512.dll,#1

Signatures

Dridex

botnet dridex

Dridex Shellcode

botnet payload
Description Indicator Process Target
N/A N/A N/A N/A

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-3336304223-2978740688-3645194410-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Qoccyyzfzcu = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\SystemCertificates\\My\\CTLs\\2XyVQ37SQ6x\\SppExtComObj.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:\Windows\system32\rundll32.exe N/A
Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA C:\Users\Admin\AppData\Local\71t0oN\EaseOfAccessDialog.exe N/A
Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA C:\Users\Admin\AppData\Local\wv0\SppExtComObj.Exe N/A
Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA C:\Users\Admin\AppData\Local\nPlX64p\cttune.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
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A

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
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 3492 wrote to memory of 1212 N/A N/A C:\Windows\system32\EaseOfAccessDialog.exe
PID 3492 wrote to memory of 1212 N/A N/A C:\Windows\system32\EaseOfAccessDialog.exe
PID 3492 wrote to memory of 2156 N/A N/A C:\Users\Admin\AppData\Local\71t0oN\EaseOfAccessDialog.exe
PID 3492 wrote to memory of 2156 N/A N/A C:\Users\Admin\AppData\Local\71t0oN\EaseOfAccessDialog.exe
PID 3492 wrote to memory of 3144 N/A N/A C:\Windows\system32\SppExtComObj.Exe
PID 3492 wrote to memory of 3144 N/A N/A C:\Windows\system32\SppExtComObj.Exe
PID 3492 wrote to memory of 3716 N/A N/A C:\Users\Admin\AppData\Local\wv0\SppExtComObj.Exe
PID 3492 wrote to memory of 3716 N/A N/A C:\Users\Admin\AppData\Local\wv0\SppExtComObj.Exe
PID 3492 wrote to memory of 3536 N/A N/A C:\Windows\system32\consent.exe
PID 3492 wrote to memory of 3536 N/A N/A C:\Windows\system32\consent.exe
PID 3492 wrote to memory of 1052 N/A N/A C:\Users\Admin\AppData\Local\U3m\consent.exe
PID 3492 wrote to memory of 1052 N/A N/A C:\Users\Admin\AppData\Local\U3m\consent.exe
PID 3492 wrote to memory of 3452 N/A N/A C:\Windows\system32\cttune.exe
PID 3492 wrote to memory of 3452 N/A N/A C:\Windows\system32\cttune.exe
PID 3492 wrote to memory of 1536 N/A N/A C:\Users\Admin\AppData\Local\nPlX64p\cttune.exe
PID 3492 wrote to memory of 1536 N/A N/A C:\Users\Admin\AppData\Local\nPlX64p\cttune.exe

Uses Task Scheduler COM API

persistence

Processes

C:\Windows\system32\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\26d16df1bc3dace3f361fc79ef505512.dll,#1

C:\Windows\system32\EaseOfAccessDialog.exe

C:\Windows\system32\EaseOfAccessDialog.exe

C:\Users\Admin\AppData\Local\71t0oN\EaseOfAccessDialog.exe

C:\Users\Admin\AppData\Local\71t0oN\EaseOfAccessDialog.exe

C:\Windows\system32\SppExtComObj.Exe

C:\Windows\system32\SppExtComObj.Exe

C:\Windows\system32\consent.exe

C:\Windows\system32\consent.exe

C:\Users\Admin\AppData\Local\U3m\consent.exe

C:\Users\Admin\AppData\Local\U3m\consent.exe

C:\Windows\system32\cttune.exe

C:\Windows\system32\cttune.exe

C:\Users\Admin\AppData\Local\nPlX64p\cttune.exe

C:\Users\Admin\AppData\Local\nPlX64p\cttune.exe

C:\Users\Admin\AppData\Local\wv0\SppExtComObj.Exe

C:\Users\Admin\AppData\Local\wv0\SppExtComObj.Exe

Network

Country Destination Domain Proto
US 20.231.121.79:80 tcp
US 8.8.8.8:53 208.194.73.20.in-addr.arpa udp
US 8.8.8.8:53 180.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 146.177.190.20.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 55.36.223.20.in-addr.arpa udp
US 8.8.8.8:53 59.128.231.4.in-addr.arpa udp
US 8.8.8.8:53 9.228.82.20.in-addr.arpa udp
US 8.8.8.8:53 157.123.68.40.in-addr.arpa udp
US 8.8.8.8:53 15.164.165.52.in-addr.arpa udp
US 8.8.8.8:53 41.110.16.96.in-addr.arpa udp
US 8.8.8.8:53 18.134.221.88.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
US 8.8.8.8:53 0.205.248.87.in-addr.arpa udp
US 8.8.8.8:53 198.187.3.20.in-addr.arpa udp
US 8.8.8.8:53 178.223.142.52.in-addr.arpa udp
US 8.8.8.8:53 206.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 104.241.123.92.in-addr.arpa udp
US 8.8.8.8:53 119.110.54.20.in-addr.arpa udp
US 8.8.8.8:53 217.135.221.88.in-addr.arpa udp
US 8.8.8.8:53 174.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 211.135.221.88.in-addr.arpa udp
US 8.8.8.8:53 4.173.189.20.in-addr.arpa udp

Files

memory/4576-0-0x00000294E2CB0000-0x00000294E2CB7000-memory.dmp

memory/4576-1-0x0000000140000000-0x00000001401F1000-memory.dmp

memory/3492-5-0x00007FFD907DA000-0x00007FFD907DB000-memory.dmp

memory/3492-12-0x0000000140000000-0x00000001401F1000-memory.dmp

memory/3492-17-0x0000000140000000-0x00000001401F1000-memory.dmp

memory/3492-22-0x0000000140000000-0x00000001401F1000-memory.dmp

memory/3492-27-0x0000000140000000-0x00000001401F1000-memory.dmp

memory/3492-31-0x0000000140000000-0x00000001401F1000-memory.dmp

memory/3492-34-0x00000000032B0000-0x00000000032B7000-memory.dmp

memory/3492-33-0x0000000140000000-0x00000001401F1000-memory.dmp

memory/3492-41-0x0000000140000000-0x00000001401F1000-memory.dmp

memory/3492-42-0x00007FFD91CC0000-0x00007FFD91CD0000-memory.dmp

memory/3492-32-0x0000000140000000-0x00000001401F1000-memory.dmp

memory/3492-29-0x0000000140000000-0x00000001401F1000-memory.dmp

memory/3492-30-0x0000000140000000-0x00000001401F1000-memory.dmp

memory/3492-51-0x0000000140000000-0x00000001401F1000-memory.dmp

memory/3492-53-0x0000000140000000-0x00000001401F1000-memory.dmp

memory/3492-28-0x0000000140000000-0x00000001401F1000-memory.dmp

memory/2156-62-0x0000021FB7600000-0x0000021FB7607000-memory.dmp

memory/2156-68-0x0000000140000000-0x00000001401F2000-memory.dmp

memory/2156-63-0x0000000140000000-0x00000001401F2000-memory.dmp

memory/3492-26-0x0000000140000000-0x00000001401F1000-memory.dmp

memory/3492-25-0x0000000140000000-0x00000001401F1000-memory.dmp

memory/3716-79-0x00000273D6F10000-0x00000273D6F17000-memory.dmp

memory/3716-84-0x0000000140000000-0x00000001401F2000-memory.dmp

memory/1536-103-0x0000024502AE0000-0x0000024502AE7000-memory.dmp

memory/1536-109-0x0000000140000000-0x00000001401F2000-memory.dmp

memory/3492-24-0x0000000140000000-0x00000001401F1000-memory.dmp

memory/3492-23-0x0000000140000000-0x00000001401F1000-memory.dmp

memory/3492-21-0x0000000140000000-0x00000001401F1000-memory.dmp

memory/3492-20-0x0000000140000000-0x00000001401F1000-memory.dmp

memory/3492-19-0x0000000140000000-0x00000001401F1000-memory.dmp

memory/3492-18-0x0000000140000000-0x00000001401F1000-memory.dmp

memory/3492-16-0x0000000140000000-0x00000001401F1000-memory.dmp

memory/3492-15-0x0000000140000000-0x00000001401F1000-memory.dmp

memory/3492-14-0x0000000140000000-0x00000001401F1000-memory.dmp

memory/3492-13-0x0000000140000000-0x00000001401F1000-memory.dmp

memory/3492-11-0x0000000140000000-0x00000001401F1000-memory.dmp

memory/3492-10-0x0000000140000000-0x00000001401F1000-memory.dmp

memory/3492-9-0x0000000140000000-0x00000001401F1000-memory.dmp

memory/4576-8-0x0000000140000000-0x00000001401F1000-memory.dmp

memory/3492-7-0x0000000140000000-0x00000001401F1000-memory.dmp

memory/3492-4-0x00000000080F0000-0x00000000080F1000-memory.dmp