Malware Analysis Report

2024-10-19 13:23

Sample ID 240404-rp2fraaa91
Target ba9cf73fb40a8d21912e5859ca0bb1ed_JaffaCakes118
SHA256 2b44a032c10aa4318ec524592d6bb60f2853d2060474bbf2b18c915a3454ef8f
Tags
tinba banker 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

2b44a032c10aa4318ec524592d6bb60f2853d2060474bbf2b18c915a3454ef8f

Threat Level: Known bad

The file ba9cf73fb40a8d21912e5859ca0bb1ed_JaffaCakes118 was found to be: Known bad.

Malicious Activity Summary

tinba banker persistence trojan

Tinba / TinyBanker

Adds Run key to start application

Unsigned PE

Suspicious use of WriteProcessMemory

Suspicious behavior: EnumeratesProcesses

Suspicious use of FindShellTrayWindow

Suspicious use of UnmapMainImage

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-04-04 14:22

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-04-04 14:22

Reported

2024-04-04 14:25

Platform

win7-20240221-en

Max time kernel

149s

Max time network

147s

Command Line

"C:\Windows\system32\Dwm.exe"

Signatures

Tinba / TinyBanker

trojan banker tinba

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000\Software\Microsoft\Windows\CurrentVersion\Run\E3F6BF66 = "C:\\Users\\Admin\\AppData\\Roaming\\E3F6BF66\\bin.exe" C:\Windows\SysWOW64\winver.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A

Suspicious use of FindShellTrayWindow

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\winver.exe N/A

Suspicious use of UnmapMainImage

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\ba9cf73fb40a8d21912e5859ca0bb1ed_JaffaCakes118.exe N/A

Processes

C:\Windows\system32\Dwm.exe

"C:\Windows\system32\Dwm.exe"

C:\Windows\Explorer.EXE

C:\Windows\Explorer.EXE

C:\Windows\system32\taskhost.exe

"taskhost.exe"

C:\Windows\system32\DllHost.exe

C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}

C:\Users\Admin\AppData\Local\Temp\ba9cf73fb40a8d21912e5859ca0bb1ed_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\ba9cf73fb40a8d21912e5859ca0bb1ed_JaffaCakes118.exe"

C:\Windows\SysWOW64\winver.exe

winver

Network

Country Destination Domain Proto
US 8.8.8.8:53 www.google.com udp
US 8.8.8.8:53 cbunahtesting.com udp
US 216.218.185.162:80 cbunahtesting.com tcp

Files

memory/2992-0-0x0000000000400000-0x000000000045D000-memory.dmp

memory/2992-1-0x0000000000400000-0x0000000000405000-memory.dmp

memory/2992-2-0x0000000000260000-0x0000000000262000-memory.dmp

memory/2992-4-0x0000000002200000-0x0000000002C00000-memory.dmp

memory/1088-3-0x0000000002490000-0x0000000002497000-memory.dmp

memory/2812-8-0x0000000077ACF000-0x0000000077AD0000-memory.dmp

memory/2812-12-0x0000000077AD0000-0x0000000077AD1000-memory.dmp

memory/1088-13-0x0000000077921000-0x0000000077922000-memory.dmp

memory/1088-10-0x0000000002490000-0x0000000002497000-memory.dmp

memory/2812-15-0x0000000000FC0000-0x0000000000FD6000-memory.dmp

memory/2812-14-0x0000000000220000-0x0000000000221000-memory.dmp

memory/2812-9-0x0000000077ACF000-0x0000000077AD1000-memory.dmp

memory/2812-11-0x00000000001E0000-0x00000000001E7000-memory.dmp

memory/2812-7-0x00000000001E0000-0x00000000001E7000-memory.dmp

memory/2812-6-0x00000000001E0000-0x00000000001E7000-memory.dmp

memory/1088-5-0x0000000002490000-0x0000000002497000-memory.dmp

memory/2812-16-0x0000000000230000-0x0000000000231000-memory.dmp

memory/2992-17-0x0000000000400000-0x0000000000404A00-memory.dmp

memory/2992-18-0x0000000002200000-0x0000000002C00000-memory.dmp

memory/1060-20-0x0000000000130000-0x0000000000137000-memory.dmp

memory/1088-23-0x00000000024A0000-0x00000000024A7000-memory.dmp

memory/1128-26-0x0000000000210000-0x0000000000217000-memory.dmp

memory/288-28-0x0000000001B30000-0x0000000001B37000-memory.dmp

memory/1060-29-0x0000000000130000-0x0000000000137000-memory.dmp

memory/1088-31-0x00000000024A0000-0x00000000024A7000-memory.dmp

memory/1060-30-0x0000000077921000-0x0000000077922000-memory.dmp

memory/1128-32-0x0000000000210000-0x0000000000217000-memory.dmp

memory/288-33-0x0000000001B30000-0x0000000001B37000-memory.dmp

memory/288-34-0x0000000077921000-0x0000000077922000-memory.dmp

memory/2812-40-0x00000000001E0000-0x00000000001E7000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-04-04 14:22

Reported

2024-04-04 14:25

Platform

win10v2004-20240226-en

Max time kernel

7s

Max time network

15s

Command Line

"C:\Users\Admin\AppData\Local\Temp\ba9cf73fb40a8d21912e5859ca0bb1ed_JaffaCakes118.exe"

Signatures

N/A

Processes

C:\Users\Admin\AppData\Local\Temp\ba9cf73fb40a8d21912e5859ca0bb1ed_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\ba9cf73fb40a8d21912e5859ca0bb1ed_JaffaCakes118.exe"

C:\Windows\SysWOW64\winver.exe

winver

Network

Country Destination Domain Proto
US 8.8.8.8:53 228.249.119.40.in-addr.arpa udp
US 8.8.8.8:53 241.66.18.2.in-addr.arpa udp
US 8.8.8.8:53 2.159.190.20.in-addr.arpa udp
US 20.231.121.79:80 tcp
US 8.8.8.8:53 www.google.com udp
US 8.8.8.8:53 cbunahtesting.com udp
US 8.8.8.8:53 104.219.191.52.in-addr.arpa udp
US 216.218.185.162:80 cbunahtesting.com tcp

Files

memory/2320-0-0x0000000000400000-0x000000000045D000-memory.dmp

memory/2320-1-0x0000000000400000-0x0000000000405000-memory.dmp

memory/2320-2-0x0000000000400000-0x000000000045D000-memory.dmp

memory/2320-4-0x0000000002540000-0x0000000002F40000-memory.dmp

memory/3488-3-0x0000000000680000-0x0000000000687000-memory.dmp

memory/3488-7-0x0000000000680000-0x0000000000687000-memory.dmp

memory/2292-9-0x0000000000E10000-0x0000000000E17000-memory.dmp

memory/3488-10-0x00007FFF7DF0D000-0x00007FFF7DF0E000-memory.dmp

memory/2292-6-0x0000000000E10000-0x0000000000E17000-memory.dmp

memory/2292-8-0x0000000077DA2000-0x0000000077DA3000-memory.dmp

memory/2292-5-0x0000000000E10000-0x0000000000E17000-memory.dmp

memory/2320-12-0x0000000000400000-0x0000000000404A00-memory.dmp

memory/2320-13-0x0000000002540000-0x0000000002F40000-memory.dmp

memory/2428-14-0x0000000000370000-0x0000000000377000-memory.dmp

memory/2428-18-0x0000000000370000-0x0000000000377000-memory.dmp

memory/2440-16-0x0000000000910000-0x0000000000917000-memory.dmp

memory/3488-15-0x00007FFF7E0A0000-0x00007FFF7E0A1000-memory.dmp

memory/2440-19-0x0000000000910000-0x0000000000917000-memory.dmp

memory/3488-21-0x0000000002790000-0x0000000002797000-memory.dmp

memory/3488-17-0x00007FFF7E080000-0x00007FFF7E081000-memory.dmp

memory/2528-20-0x00000000006C0000-0x00000000006C7000-memory.dmp

memory/3632-22-0x0000000000380000-0x0000000000387000-memory.dmp

memory/3896-24-0x0000000000D70000-0x0000000000D77000-memory.dmp