Malware Analysis Report

2024-09-09 17:07

Sample ID 240715-sh684awgnq
Target 4a32d1a33e9f5463d8060fe5fc3db222_JaffaCakes118
SHA256 c91ef456860b10def9b53f98626c19bdc5a30e369a1a3ac9484db9d64440a455
Tags
tinba banker persistence trojan
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK Matrix

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

c91ef456860b10def9b53f98626c19bdc5a30e369a1a3ac9484db9d64440a455

Threat Level: Known bad

The file 4a32d1a33e9f5463d8060fe5fc3db222_JaffaCakes118 was found to be: Known bad.

Malicious Activity Summary

tinba banker persistence trojan

Tinba / TinyBanker

Adds Run key to start application

Program crash

Unsigned PE

Suspicious use of FindShellTrayWindow

Suspicious use of WriteProcessMemory

Suspicious use of AdjustPrivilegeToken

Suspicious behavior: EnumeratesProcesses

Suspicious use of UnmapMainImage

MITRE ATT&CK Matrix V13

Analysis: static1

Detonation Overview

Reported

2024-07-15 15:08

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-07-15 15:08

Reported

2024-07-15 15:43

Platform

win7-20240704-en

Max time kernel

149s

Max time network

149s

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-1-5-21-3294248377-1418901787-4083263181-1000\Software\Microsoft\Windows\CurrentVersion\Run\93F2EAEF = "C:\\Users\\Admin\\AppData\\Roaming\\93F2EAEF\\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

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:\Windows\system32\DllHost.exe

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

C:\Users\Admin\AppData\Local\Temp\4a32d1a33e9f5463d8060fe5fc3db222_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\4a32d1a33e9f5463d8060fe5fc3db222_JaffaCakes118.exe"

C:\Windows\SysWOW64\winver.exe

winver

Network

Country Destination Domain Proto
US 8.8.8.8:53 spaines.pw udp
US 216.218.185.162:80 spaines.pw tcp

Files

memory/1772-0-0x0000000000020000-0x0000000000021000-memory.dmp

memory/1188-3-0x0000000002970000-0x0000000002976000-memory.dmp

memory/1188-2-0x0000000002970000-0x0000000002976000-memory.dmp

memory/1188-1-0x0000000002970000-0x0000000002976000-memory.dmp

memory/1772-4-0x0000000002330000-0x0000000002D30000-memory.dmp

memory/3008-5-0x0000000000120000-0x0000000000126000-memory.dmp

memory/3008-10-0x0000000077280000-0x0000000077429000-memory.dmp

memory/1188-9-0x00000000772D1000-0x00000000772D2000-memory.dmp

memory/3008-8-0x000000007747F000-0x0000000077481000-memory.dmp

memory/3008-7-0x000000007747F000-0x0000000077480000-memory.dmp

memory/3008-6-0x0000000077480000-0x0000000077481000-memory.dmp

memory/1772-11-0x0000000000400000-0x0000000000416000-memory.dmp

memory/1156-18-0x0000000000130000-0x0000000000136000-memory.dmp

memory/1188-20-0x00000000020B0000-0x00000000020B6000-memory.dmp

memory/1524-22-0x0000000000390000-0x0000000000396000-memory.dmp

memory/1096-23-0x0000000001F90000-0x0000000001F96000-memory.dmp

memory/1096-24-0x00000000772D1000-0x00000000772D2000-memory.dmp

memory/1524-28-0x00000000772D1000-0x00000000772D2000-memory.dmp

memory/1524-27-0x0000000000390000-0x0000000000396000-memory.dmp

memory/1188-26-0x00000000020B0000-0x00000000020B6000-memory.dmp

memory/1156-25-0x0000000000130000-0x0000000000136000-memory.dmp

memory/3008-33-0x0000000000120000-0x0000000000126000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-07-15 15:08

Reported

2024-07-15 15:44

Platform

win10v2004-20240709-en

Max time kernel

142s

Max time network

102s

Command Line

sihost.exe

Signatures

Tinba / TinyBanker

trojan banker tinba

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-1750093773-264148664-1320403265-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\E1B75FB0 = "C:\\Users\\Admin\\AppData\\Roaming\\E1B75FB0\\bin.exe" C:\Windows\SysWOW64\winver.exe N/A

Program crash

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

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

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeShutdownPrivilege N/A C:\Windows\Explorer.EXE N/A
Token: SeCreatePagefilePrivilege N/A C:\Windows\Explorer.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:\Windows\Explorer.EXE N/A

Processes

C:\Windows\system32\sihost.exe

sihost.exe

C:\Windows\Explorer.EXE

C:\Windows\Explorer.EXE

C:\Users\Admin\AppData\Local\Temp\4a32d1a33e9f5463d8060fe5fc3db222_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\4a32d1a33e9f5463d8060fe5fc3db222_JaffaCakes118.exe"

C:\Windows\SysWOW64\winver.exe

winver

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3712 -ip 3712

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 3712 -s 352

Network

Country Destination Domain Proto
US 8.8.8.8:53 g.bing.com udp
US 13.107.21.237:443 g.bing.com tcp
US 8.8.8.8:53 74.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 81.144.22.2.in-addr.arpa udp
US 8.8.8.8:53 237.21.107.13.in-addr.arpa udp
US 8.8.8.8:53 26.35.223.20.in-addr.arpa udp
US 8.8.8.8:53 103.169.127.40.in-addr.arpa udp
US 8.8.8.8:53 56.126.166.20.in-addr.arpa udp
US 8.8.8.8:53 192.142.123.92.in-addr.arpa udp
US 52.111.227.13:443 tcp
US 8.8.8.8:53 73.144.22.2.in-addr.arpa udp

Files

memory/4536-0-0x00000000005C0000-0x00000000005C1000-memory.dmp

memory/4536-1-0x0000000002540000-0x0000000002F40000-memory.dmp

memory/3432-3-0x0000000000700000-0x0000000000706000-memory.dmp

memory/3432-2-0x0000000000700000-0x0000000000706000-memory.dmp

memory/3432-6-0x00007FFABB78D000-0x00007FFABB78E000-memory.dmp

memory/3712-5-0x0000000000590000-0x00000000005A2000-memory.dmp

memory/3712-4-0x0000000000591000-0x0000000000592000-memory.dmp

memory/3432-7-0x00007FFABB920000-0x00007FFABB921000-memory.dmp

memory/4536-8-0x0000000000400000-0x0000000000416000-memory.dmp

memory/4536-9-0x0000000002540000-0x0000000002F40000-memory.dmp

memory/3712-11-0x00000000028E0000-0x00000000028E6000-memory.dmp

memory/3088-13-0x00000000003C0000-0x00000000003C6000-memory.dmp

memory/3712-14-0x00000000028E0000-0x00000000028E6000-memory.dmp