Malware Analysis Report

2024-10-19 13:24

Sample ID 240404-xegw9afg72
Target bff05a73e8b0a0babef02d20f5522e44_JaffaCakes118
SHA256 2a236661e0e18e2e9c7faa3d32d3dcee3b61933f95a50fb6539313edaf40534d
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

2a236661e0e18e2e9c7faa3d32d3dcee3b61933f95a50fb6539313edaf40534d

Threat Level: Known bad

The file bff05a73e8b0a0babef02d20f5522e44_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 FindShellTrayWindow

Suspicious use of UnmapMainImage

Suspicious use of WriteProcessMemory

Suspicious behavior: EnumeratesProcesses

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-04-04 18:45

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-04-04 18:45

Reported

2024-04-04 18:48

Platform

win7-20240221-en

Max time kernel

159s

Max time network

176s

Command Line

"taskhost.exe"

Signatures

Tinba / TinyBanker

trojan banker tinba

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-2461186416-2307104501-1787948496-1000\Software\Microsoft\Windows\CurrentVersion\Run\ED49E64E = "C:\\Users\\Admin\\AppData\\Roaming\\ED49E64E\\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\bff05a73e8b0a0babef02d20f5522e44_JaffaCakes118.exe N/A

Processes

C:\Windows\system32\taskhost.exe

"taskhost.exe"

C:\Windows\system32\Dwm.exe

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

C:\Windows\Explorer.EXE

C:\Windows\Explorer.EXE

C:\Users\Admin\AppData\Local\Temp\bff05a73e8b0a0babef02d20f5522e44_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\bff05a73e8b0a0babef02d20f5522e44_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
US 8.8.8.8:53 rstmnryjbwhh.com udp
US 8.8.8.8:53 rstmnryjbwhh.net udp
US 216.218.185.162:80 rstmnryjbwhh.net tcp

Files

memory/1068-0-0x0000000000400000-0x000000000045D000-memory.dmp

memory/1068-1-0x0000000000400000-0x0000000000405000-memory.dmp

memory/1068-2-0x0000000000240000-0x0000000000242000-memory.dmp

memory/1068-3-0x0000000001F90000-0x0000000002990000-memory.dmp

memory/1260-4-0x0000000002B60000-0x0000000002B67000-memory.dmp

memory/1260-5-0x0000000002B60000-0x0000000002B67000-memory.dmp

memory/2508-6-0x0000000000260000-0x0000000000276000-memory.dmp

memory/2508-8-0x0000000000110000-0x0000000000117000-memory.dmp

memory/2508-11-0x0000000077D6F000-0x0000000077D70000-memory.dmp

memory/2508-10-0x0000000000110000-0x0000000000117000-memory.dmp

memory/2508-12-0x0000000077D6F000-0x0000000077D71000-memory.dmp

memory/1260-9-0x0000000002B60000-0x0000000002B67000-memory.dmp

memory/1260-14-0x0000000077BC1000-0x0000000077BC2000-memory.dmp

memory/2508-13-0x0000000077D70000-0x0000000077D71000-memory.dmp

memory/2508-15-0x0000000000240000-0x0000000000241000-memory.dmp

memory/2508-16-0x0000000000250000-0x0000000000251000-memory.dmp

memory/1068-17-0x0000000000400000-0x0000000000404A00-memory.dmp

memory/1068-18-0x0000000001F90000-0x0000000002990000-memory.dmp

memory/1124-20-0x0000000000320000-0x0000000000327000-memory.dmp

memory/1124-22-0x0000000000320000-0x0000000000327000-memory.dmp

memory/1124-24-0x0000000077BC1000-0x0000000077BC2000-memory.dmp

memory/1164-23-0x00000000001A0000-0x00000000001A7000-memory.dmp

memory/1260-27-0x0000000002B70000-0x0000000002B77000-memory.dmp

memory/1164-28-0x00000000001A0000-0x00000000001A7000-memory.dmp

memory/1260-29-0x0000000002B70000-0x0000000002B77000-memory.dmp

memory/2508-34-0x0000000000110000-0x0000000000117000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-04-04 18:45

Reported

2024-04-04 18:48

Platform

win10v2004-20240226-en

Max time kernel

4s

Max time network

24s

Command Line

"C:\Users\Admin\AppData\Local\Temp\bff05a73e8b0a0babef02d20f5522e44_JaffaCakes118.exe"

Signatures

N/A

Processes

C:\Users\Admin\AppData\Local\Temp\bff05a73e8b0a0babef02d20f5522e44_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\bff05a73e8b0a0babef02d20f5522e44_JaffaCakes118.exe"

C:\Windows\SysWOW64\winver.exe

winver

Network

Country Destination Domain Proto
NL 52.142.223.178:80 tcp
US 8.8.8.8:53 13.86.106.20.in-addr.arpa udp
US 8.8.8.8:53 241.66.18.2.in-addr.arpa udp

Files

memory/2336-0-0x0000000000400000-0x000000000045D000-memory.dmp

memory/2336-1-0x00000000021D0000-0x00000000021D2000-memory.dmp

memory/2336-2-0x0000000000400000-0x0000000000405000-memory.dmp

memory/2336-3-0x0000000002430000-0x0000000002E30000-memory.dmp

memory/3376-4-0x0000000000A70000-0x0000000000A77000-memory.dmp

memory/2884-8-0x0000000000AA0000-0x0000000000AA7000-memory.dmp

memory/3376-6-0x0000000000A70000-0x0000000000A77000-memory.dmp

memory/2884-5-0x0000000000AA0000-0x0000000000AA7000-memory.dmp

memory/2884-9-0x00000000775C2000-0x00000000775C3000-memory.dmp

memory/2884-7-0x0000000000C90000-0x0000000000CA2000-memory.dmp

memory/3376-10-0x00007FFD2CB2D000-0x00007FFD2CB2E000-memory.dmp

memory/2580-12-0x0000000000720000-0x0000000000727000-memory.dmp

memory/2656-13-0x0000000000010000-0x0000000000017000-memory.dmp

memory/3612-15-0x0000000000240000-0x0000000000247000-memory.dmp

memory/3376-14-0x0000000000A90000-0x0000000000A97000-memory.dmp

memory/2564-16-0x0000000000D20000-0x0000000000D27000-memory.dmp

memory/2580-17-0x0000000000720000-0x0000000000727000-memory.dmp

memory/2656-18-0x0000000000010000-0x0000000000017000-memory.dmp

memory/3376-19-0x0000000000A90000-0x0000000000A97000-memory.dmp

memory/3612-20-0x0000000000240000-0x0000000000247000-memory.dmp

memory/3792-21-0x00000000008B0000-0x00000000008B7000-memory.dmp