Malware Analysis Report

2025-01-03 06:14

Sample ID 240521-yfv1yagd44
Target a3a993c23a06d2bacbe059fff674ec44672b09ed32e3bc2b69513f4d3b077081
SHA256 a3a993c23a06d2bacbe059fff674ec44672b09ed32e3bc2b69513f4d3b077081
Tags
emotet banker 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

a3a993c23a06d2bacbe059fff674ec44672b09ed32e3bc2b69513f4d3b077081

Threat Level: Known bad

The file a3a993c23a06d2bacbe059fff674ec44672b09ed32e3bc2b69513f4d3b077081 was found to be: Known bad.

Malicious Activity Summary

emotet banker trojan

Emotet

Drops file in System32 directory

Unsigned PE

Enumerates physical storage devices

Modifies data under HKEY_USERS

Suspicious behavior: EnumeratesProcesses

Suspicious behavior: RenamesItself

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-05-21 19:44

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-05-21 19:44

Reported

2024-05-21 19:46

Platform

win7-20240508-en

Max time kernel

148s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\461340.exe"

Signatures

Emotet

trojan banker emotet

Drops file in System32 directory

Description Indicator Process Target
File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\Temporary Internet Files\counters.dat C:\Windows\SysWOW64\boostisvc.exe N/A

Enumerates physical storage devices

Modifies data under HKEY_USERS

Description Indicator Process Target
Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{DBB4EBAB-9170-4B81-B231-53D510E45737}\WpadDecision = "0" C:\Windows\SysWOW64\boostisvc.exe N/A
Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{DBB4EBAB-9170-4B81-B231-53D510E45737}\WpadNetworkName = "Network 3" C:\Windows\SysWOW64\boostisvc.exe N/A
Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{DBB4EBAB-9170-4B81-B231-53D510E45737}\0a-79-9a-29-cf-db C:\Windows\SysWOW64\boostisvc.exe N/A
Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\0a-79-9a-29-cf-db\WpadDecisionReason = "1" C:\Windows\SysWOW64\boostisvc.exe N/A
Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\0a-79-9a-29-cf-db\WpadDetectedUrl C:\Windows\SysWOW64\boostisvc.exe N/A
Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 C:\Windows\SysWOW64\boostisvc.exe N/A
Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{DBB4EBAB-9170-4B81-B231-53D510E45737}\WpadDecisionReason = "1" C:\Windows\SysWOW64\boostisvc.exe N/A
Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{DBB4EBAB-9170-4B81-B231-53D510E45737} C:\Windows\SysWOW64\boostisvc.exe N/A
Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{DBB4EBAB-9170-4B81-B231-53D510E45737}\WpadDecisionTime = e00c254fb7abda01 C:\Windows\SysWOW64\boostisvc.exe N/A
Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\0a-79-9a-29-cf-db\WpadDecisionTime = e00c254fb7abda01 C:\Windows\SysWOW64\boostisvc.exe N/A
Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\0a-79-9a-29-cf-db\WpadDecision = "0" C:\Windows\SysWOW64\boostisvc.exe N/A
Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0" C:\Windows\SysWOW64\boostisvc.exe N/A
Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad C:\Windows\SysWOW64\boostisvc.exe N/A
Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 C:\Windows\SysWOW64\boostisvc.exe N/A
Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings C:\Windows\SysWOW64\boostisvc.exe N/A
Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections C:\Windows\SysWOW64\boostisvc.exe N/A
Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\0a-79-9a-29-cf-db C:\Windows\SysWOW64\boostisvc.exe N/A
Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings C:\Windows\SysWOW64\boostisvc.exe N/A
Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f002a000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 C:\Windows\SysWOW64\boostisvc.exe N/A

Suspicious behavior: RenamesItself

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\461340.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\461340.exe

"C:\Users\Admin\AppData\Local\Temp\461340.exe"

C:\Users\Admin\AppData\Local\Temp\461340.exe

"C:\Users\Admin\AppData\Local\Temp\461340.exe"

C:\Windows\SysWOW64\boostisvc.exe

"C:\Windows\SysWOW64\boostisvc.exe"

C:\Windows\SysWOW64\boostisvc.exe

"C:\Windows\SysWOW64\boostisvc.exe"

Network

Country Destination Domain Proto
IE 213.79.36.67:80 tcp
IE 213.79.36.67:80 tcp
US 24.90.102.247:443 tcp
US 24.90.102.247:443 tcp
MX 189.250.174.245:7080 tcp
MX 189.250.174.245:7080 tcp
US 199.38.204.218:80 tcp

Files

memory/1868-5-0x00000000003C0000-0x00000000003D6000-memory.dmp

memory/1868-1-0x00000000003C0000-0x00000000003D6000-memory.dmp

memory/1868-7-0x00000000003E0000-0x00000000003F0000-memory.dmp

memory/1868-6-0x00000000003A0000-0x00000000003B6000-memory.dmp

memory/2348-9-0x0000000000390000-0x00000000003A6000-memory.dmp

memory/2348-15-0x00000000003B0000-0x00000000003C0000-memory.dmp

memory/2348-14-0x0000000000370000-0x0000000000386000-memory.dmp

memory/2348-13-0x0000000000390000-0x00000000003A6000-memory.dmp

memory/2848-21-0x00000000003A0000-0x00000000003B6000-memory.dmp

memory/2848-17-0x00000000003A0000-0x00000000003B6000-memory.dmp

memory/2848-22-0x0000000000380000-0x0000000000396000-memory.dmp

memory/2848-23-0x0000000000360000-0x0000000000370000-memory.dmp

memory/2776-31-0x00000000005D0000-0x00000000005E0000-memory.dmp

memory/2776-30-0x00000000003E0000-0x00000000003F6000-memory.dmp

memory/2776-29-0x00000000005B0000-0x00000000005C6000-memory.dmp

memory/2776-25-0x00000000005B0000-0x00000000005C6000-memory.dmp

memory/2848-32-0x0000000000380000-0x0000000000396000-memory.dmp

memory/2348-33-0x0000000000400000-0x000000000046C000-memory.dmp

memory/2348-34-0x0000000000370000-0x0000000000386000-memory.dmp

memory/2776-35-0x00000000003E0000-0x00000000003F6000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-05-21 19:44

Reported

2024-05-21 19:46

Platform

win10v2004-20240426-en

Max time kernel

137s

Max time network

147s

Command Line

"C:\Users\Admin\AppData\Local\Temp\461340.exe"

Signatures

Emotet

trojan banker emotet

Enumerates physical storage devices

Suspicious behavior: RenamesItself

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\461340.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\461340.exe

"C:\Users\Admin\AppData\Local\Temp\461340.exe"

C:\Users\Admin\AppData\Local\Temp\461340.exe

"C:\Users\Admin\AppData\Local\Temp\461340.exe"

C:\Windows\SysWOW64\wfdapply.exe

"C:\Windows\SysWOW64\wfdapply.exe"

C:\Windows\SysWOW64\wfdapply.exe

"C:\Windows\SysWOW64\wfdapply.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 g.bing.com udp
US 204.79.197.237:443 g.bing.com tcp
US 8.8.8.8:53 13.86.106.20.in-addr.arpa udp
US 8.8.8.8:53 82.90.14.23.in-addr.arpa udp
NL 23.62.61.171:443 www.bing.com tcp
US 8.8.8.8:53 237.197.79.204.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
NL 23.62.61.171:443 www.bing.com tcp
US 8.8.8.8:53 140.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 171.61.62.23.in-addr.arpa udp
US 8.8.8.8:53 209.205.72.20.in-addr.arpa udp
IE 213.79.36.67:80 tcp
US 8.8.8.8:53 50.23.12.20.in-addr.arpa udp
US 8.8.8.8:53 206.23.85.13.in-addr.arpa udp
US 24.90.102.247:443 tcp
MX 189.250.174.245:7080 tcp
US 199.38.204.218:80 tcp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 43.229.111.52.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 8.8.8.8:53 43.58.199.20.in-addr.arpa udp
US 8.8.8.8:53 200.197.79.204.in-addr.arpa udp
US 67.251.11.28:443 tcp
US 50.125.99.70:443 tcp

Files

memory/2276-5-0x0000000002560000-0x0000000002576000-memory.dmp

memory/4256-15-0x0000000000A80000-0x0000000000A90000-memory.dmp

memory/4256-14-0x0000000000A40000-0x0000000000A56000-memory.dmp

memory/2276-13-0x0000000000600000-0x0000000000610000-memory.dmp

memory/2276-12-0x0000000002540000-0x0000000002556000-memory.dmp

memory/4256-11-0x0000000000A60000-0x0000000000A76000-memory.dmp

memory/4256-7-0x0000000000A60000-0x0000000000A76000-memory.dmp

memory/2276-1-0x0000000002560000-0x0000000002576000-memory.dmp

memory/4800-17-0x0000000000920000-0x0000000000936000-memory.dmp

memory/4800-21-0x0000000000920000-0x0000000000936000-memory.dmp

memory/4800-23-0x0000000000940000-0x0000000000950000-memory.dmp

memory/4800-22-0x0000000000900000-0x0000000000916000-memory.dmp

memory/2760-29-0x0000000000A70000-0x0000000000A86000-memory.dmp

memory/2760-25-0x0000000000A70000-0x0000000000A86000-memory.dmp

memory/4256-30-0x0000000000400000-0x000000000046C000-memory.dmp

memory/4256-31-0x0000000000A40000-0x0000000000A56000-memory.dmp