Malware Analysis Report

2024-10-23 20:55

Sample ID 230716-q4nmrsfc64
Target Bat_To_Exe_Converter.exe
SHA256 b4d092bdd58610ec77ef6713fe7559c39a52f77d37f8a3c5044e1b95e98f969e
Tags
vanillarat persistence rat
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V6

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

b4d092bdd58610ec77ef6713fe7559c39a52f77d37f8a3c5044e1b95e98f969e

Threat Level: Known bad

The file Bat_To_Exe_Converter.exe was found to be: Known bad.

Malicious Activity Summary

vanillarat persistence rat

Vanillarat family

VanillaRat

Vanilla Rat payload

Vanilla Rat payload

Executes dropped EXE

Checks computer location settings

Loads dropped DLL

Adds Run key to start application

Legitimate hosting services abused for malware hosting/C2

Unsigned PE

Enumerates physical storage devices

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2023-07-16 13:49

Signatures

Vanilla Rat payload

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

Vanillarat family

vanillarat

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2023-07-16 13:49

Reported

2023-07-16 13:51

Platform

win7-20230712-en

Max time kernel

119s

Max time network

142s

Command Line

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

Signatures

VanillaRat

rat vanillarat

Vanilla Rat payload

rat
Description Indicator Process Target
N/A N/A N/A N/A
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Executes dropped EXE

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

Loads dropped DLL

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

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-3408354897-1169622894-3874090110-1000\Software\Microsoft\Windows\CurrentVersion\Run\svchost = "C:\\Users\\Admin\\AppData\\Roaming\\svchost.exe" C:\Users\Admin\AppData\Roaming\svchost.exe N/A

Legitimate hosting services abused for malware hosting/C2

Enumerates physical storage devices

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\Bat_To_Exe_Converter.exe N/A
Token: SeDebugPrivilege N/A C:\Users\Admin\svchost.exe N/A

Processes

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

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

C:\Users\Admin\svchost.exe

"C:\Users\Admin\svchost.exe"

C:\Users\Admin\AppData\Roaming\svchost.exe

"C:\Users\Admin\AppData\Roaming\svchost.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 4.tcp.eu.ngrok.io udp
DE 3.121.139.82:19840 4.tcp.eu.ngrok.io tcp
DE 3.121.139.82:19840 4.tcp.eu.ngrok.io tcp
DE 3.121.139.82:19840 4.tcp.eu.ngrok.io tcp
DE 3.121.139.82:19840 4.tcp.eu.ngrok.io tcp
DE 3.121.139.82:19840 4.tcp.eu.ngrok.io tcp
US 8.8.8.8:53 4.tcp.eu.ngrok.io udp
DE 3.121.139.82:19840 4.tcp.eu.ngrok.io tcp
DE 3.121.139.82:19840 4.tcp.eu.ngrok.io tcp

Files

memory/2908-53-0x0000000001050000-0x000000000109A000-memory.dmp

memory/2908-54-0x0000000074580000-0x0000000074C6E000-memory.dmp

\Users\Admin\svchost.exe

MD5 2e5422412d23d9f1c1dff78719447728
SHA1 00440171a8963d4454aa8e63fb3a25fd85585091
SHA256 3f0ce66700b7011c8fa2e8a1709c43fb79882721afa0f5e1bbeb8a5c29d81d03
SHA512 77b31e4a05b73495b4ca8698b046bef8cdec82845d316b304679b2521529be38d1dd0cd4e471cf04097ce734f588312214687ec0c8582a5ff5676b68b4e61521

C:\Users\Admin\svchost.exe

MD5 2e5422412d23d9f1c1dff78719447728
SHA1 00440171a8963d4454aa8e63fb3a25fd85585091
SHA256 3f0ce66700b7011c8fa2e8a1709c43fb79882721afa0f5e1bbeb8a5c29d81d03
SHA512 77b31e4a05b73495b4ca8698b046bef8cdec82845d316b304679b2521529be38d1dd0cd4e471cf04097ce734f588312214687ec0c8582a5ff5676b68b4e61521

C:\Users\Admin\svchost.exe

MD5 2e5422412d23d9f1c1dff78719447728
SHA1 00440171a8963d4454aa8e63fb3a25fd85585091
SHA256 3f0ce66700b7011c8fa2e8a1709c43fb79882721afa0f5e1bbeb8a5c29d81d03
SHA512 77b31e4a05b73495b4ca8698b046bef8cdec82845d316b304679b2521529be38d1dd0cd4e471cf04097ce734f588312214687ec0c8582a5ff5676b68b4e61521

C:\Users\Admin\svchost.exe

MD5 2e5422412d23d9f1c1dff78719447728
SHA1 00440171a8963d4454aa8e63fb3a25fd85585091
SHA256 3f0ce66700b7011c8fa2e8a1709c43fb79882721afa0f5e1bbeb8a5c29d81d03
SHA512 77b31e4a05b73495b4ca8698b046bef8cdec82845d316b304679b2521529be38d1dd0cd4e471cf04097ce734f588312214687ec0c8582a5ff5676b68b4e61521

memory/2932-63-0x00000000009B0000-0x00000000009D2000-memory.dmp

memory/2932-64-0x0000000074580000-0x0000000074C6E000-memory.dmp

memory/2932-65-0x0000000004D80000-0x0000000004DC0000-memory.dmp

memory/2908-66-0x0000000074580000-0x0000000074C6E000-memory.dmp

\Users\Admin\AppData\Roaming\svchost.exe

MD5 2e5422412d23d9f1c1dff78719447728
SHA1 00440171a8963d4454aa8e63fb3a25fd85585091
SHA256 3f0ce66700b7011c8fa2e8a1709c43fb79882721afa0f5e1bbeb8a5c29d81d03
SHA512 77b31e4a05b73495b4ca8698b046bef8cdec82845d316b304679b2521529be38d1dd0cd4e471cf04097ce734f588312214687ec0c8582a5ff5676b68b4e61521

C:\Users\Admin\AppData\Roaming\svchost.exe

MD5 2e5422412d23d9f1c1dff78719447728
SHA1 00440171a8963d4454aa8e63fb3a25fd85585091
SHA256 3f0ce66700b7011c8fa2e8a1709c43fb79882721afa0f5e1bbeb8a5c29d81d03
SHA512 77b31e4a05b73495b4ca8698b046bef8cdec82845d316b304679b2521529be38d1dd0cd4e471cf04097ce734f588312214687ec0c8582a5ff5676b68b4e61521

memory/2996-74-0x00000000008E0000-0x0000000000902000-memory.dmp

C:\Users\Admin\AppData\Roaming\svchost.exe

MD5 2e5422412d23d9f1c1dff78719447728
SHA1 00440171a8963d4454aa8e63fb3a25fd85585091
SHA256 3f0ce66700b7011c8fa2e8a1709c43fb79882721afa0f5e1bbeb8a5c29d81d03
SHA512 77b31e4a05b73495b4ca8698b046bef8cdec82845d316b304679b2521529be38d1dd0cd4e471cf04097ce734f588312214687ec0c8582a5ff5676b68b4e61521

memory/2996-76-0x0000000074580000-0x0000000074C6E000-memory.dmp

memory/2932-75-0x0000000074580000-0x0000000074C6E000-memory.dmp

memory/2996-77-0x0000000004E00000-0x0000000004E40000-memory.dmp

memory/2996-78-0x0000000074580000-0x0000000074C6E000-memory.dmp

memory/2996-79-0x0000000004E00000-0x0000000004E40000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2023-07-16 13:49

Reported

2023-07-16 13:51

Platform

win10v2004-20230703-en

Max time kernel

144s

Max time network

147s

Command Line

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

Signatures

VanillaRat

rat vanillarat

Vanilla Rat payload

rat
Description Indicator Process Target
N/A N/A N/A N/A
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Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-1722984668-1829624581-3022101259-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\Bat_To_Exe_Converter.exe N/A
Key value queried \REGISTRY\USER\S-1-5-21-1722984668-1829624581-3022101259-1000\Control Panel\International\Geo\Nation C:\Users\Admin\svchost.exe N/A

Executes dropped EXE

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

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-1722984668-1829624581-3022101259-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\svchost = "C:\\Users\\Admin\\AppData\\Roaming\\svchost.exe" C:\Users\Admin\AppData\Roaming\svchost.exe N/A

Legitimate hosting services abused for malware hosting/C2

Enumerates physical storage devices

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\Bat_To_Exe_Converter.exe N/A
Token: SeDebugPrivilege N/A C:\Users\Admin\svchost.exe N/A

Processes

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

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

C:\Users\Admin\svchost.exe

"C:\Users\Admin\svchost.exe"

C:\Users\Admin\AppData\Roaming\svchost.exe

"C:\Users\Admin\AppData\Roaming\svchost.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 2.136.104.51.in-addr.arpa udp
US 8.8.8.8:53 55.36.223.20.in-addr.arpa udp
US 8.8.8.8:53 4.tcp.eu.ngrok.io udp
DE 3.121.139.82:19840 4.tcp.eu.ngrok.io tcp
US 8.8.8.8:53 82.139.121.3.in-addr.arpa udp
US 8.8.8.8:53 208.194.73.20.in-addr.arpa udp
US 8.8.8.8:53 183.59.114.20.in-addr.arpa udp
US 8.8.8.8:53 206.23.85.13.in-addr.arpa udp
DE 3.121.139.82:19840 4.tcp.eu.ngrok.io tcp
DE 3.121.139.82:19840 4.tcp.eu.ngrok.io tcp
US 8.8.8.8:53 57.169.31.20.in-addr.arpa udp
US 8.8.8.8:53 1.77.109.52.in-addr.arpa udp
US 8.8.8.8:53 4.tcp.eu.ngrok.io udp
DE 35.158.159.254:19840 4.tcp.eu.ngrok.io tcp
US 8.8.8.8:53 254.159.158.35.in-addr.arpa udp
US 8.8.8.8:53 216.74.101.95.in-addr.arpa udp
US 8.8.8.8:53 209.143.182.52.in-addr.arpa udp

Files

memory/220-133-0x00000000000D0000-0x000000000011A000-memory.dmp

memory/220-134-0x0000000075140000-0x00000000758F0000-memory.dmp

memory/220-135-0x0000000004A00000-0x0000000004A9C000-memory.dmp

C:\Users\Admin\svchost.exe

MD5 2e5422412d23d9f1c1dff78719447728
SHA1 00440171a8963d4454aa8e63fb3a25fd85585091
SHA256 3f0ce66700b7011c8fa2e8a1709c43fb79882721afa0f5e1bbeb8a5c29d81d03
SHA512 77b31e4a05b73495b4ca8698b046bef8cdec82845d316b304679b2521529be38d1dd0cd4e471cf04097ce734f588312214687ec0c8582a5ff5676b68b4e61521

C:\Users\Admin\svchost.exe

MD5 2e5422412d23d9f1c1dff78719447728
SHA1 00440171a8963d4454aa8e63fb3a25fd85585091
SHA256 3f0ce66700b7011c8fa2e8a1709c43fb79882721afa0f5e1bbeb8a5c29d81d03
SHA512 77b31e4a05b73495b4ca8698b046bef8cdec82845d316b304679b2521529be38d1dd0cd4e471cf04097ce734f588312214687ec0c8582a5ff5676b68b4e61521

C:\Users\Admin\svchost.exe

MD5 2e5422412d23d9f1c1dff78719447728
SHA1 00440171a8963d4454aa8e63fb3a25fd85585091
SHA256 3f0ce66700b7011c8fa2e8a1709c43fb79882721afa0f5e1bbeb8a5c29d81d03
SHA512 77b31e4a05b73495b4ca8698b046bef8cdec82845d316b304679b2521529be38d1dd0cd4e471cf04097ce734f588312214687ec0c8582a5ff5676b68b4e61521

memory/1992-167-0x0000000000680000-0x00000000006A2000-memory.dmp

memory/1992-168-0x0000000075140000-0x00000000758F0000-memory.dmp

memory/1992-169-0x0000000005BB0000-0x0000000006154000-memory.dmp

memory/220-170-0x0000000075140000-0x00000000758F0000-memory.dmp

memory/1992-171-0x00000000056A0000-0x0000000005732000-memory.dmp

memory/1992-172-0x0000000005740000-0x000000000574A000-memory.dmp

C:\Users\Admin\AppData\Roaming\svchost.exe

MD5 2e5422412d23d9f1c1dff78719447728
SHA1 00440171a8963d4454aa8e63fb3a25fd85585091
SHA256 3f0ce66700b7011c8fa2e8a1709c43fb79882721afa0f5e1bbeb8a5c29d81d03
SHA512 77b31e4a05b73495b4ca8698b046bef8cdec82845d316b304679b2521529be38d1dd0cd4e471cf04097ce734f588312214687ec0c8582a5ff5676b68b4e61521

C:\Users\Admin\AppData\Roaming\svchost.exe

MD5 2e5422412d23d9f1c1dff78719447728
SHA1 00440171a8963d4454aa8e63fb3a25fd85585091
SHA256 3f0ce66700b7011c8fa2e8a1709c43fb79882721afa0f5e1bbeb8a5c29d81d03
SHA512 77b31e4a05b73495b4ca8698b046bef8cdec82845d316b304679b2521529be38d1dd0cd4e471cf04097ce734f588312214687ec0c8582a5ff5676b68b4e61521

memory/1332-184-0x0000000075140000-0x00000000758F0000-memory.dmp

memory/1992-185-0x0000000075140000-0x00000000758F0000-memory.dmp

memory/1332-186-0x0000000009B10000-0x0000000009B76000-memory.dmp

memory/1332-187-0x0000000075140000-0x00000000758F0000-memory.dmp