Malware Analysis Report

2024-07-28 12:19

Sample ID 240701-3yf2ys1fqp
Target 1d0237ea405847db1806eb9224e2a9ca_JaffaCakes118
SHA256 6c51b82a571eadf1687981b8f310d10c5cf1881141c339eb71b7beda0733a256
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

6c51b82a571eadf1687981b8f310d10c5cf1881141c339eb71b7beda0733a256

Threat Level: Known bad

The file 1d0237ea405847db1806eb9224e2a9ca_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 behavior: EnumeratesProcesses

Suspicious use of FindShellTrayWindow

Suspicious use of SendNotifyMessage

Suspicious use of WriteProcessMemory

Suspicious use of AdjustPrivilegeToken

MITRE ATT&CK Matrix V13

Initial Access
TA0001
Execution
TA0002
Persistence
TA0003
Boot or Logon Autostart Execution
T1547
Registry Run Keys / Startup Folder
T1547.001
Privilege Escalation
TA0004
Boot or Logon Autostart Execution
T1547
Registry Run Keys / Startup Folder
T1547.001
Defense Evasion
TA0005
Modify Registry
T1112
Credential Access
TA0006
Discovery
TA0007
Lateral Movement
TA0008
Collection
TA0009
Exfiltration
TA0010
Command and Control
TA0011
Impact
TA0040
Resource Development
TA0042
Reconnaissance
TA0043

Analysis: static1

Detonation Overview

Reported

2024-07-01 23:55

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-07-01 23:55

Reported

2024-07-02 00:01

Platform

win7-20231129-en

Max time kernel

149s

Max time network

150s

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-1-5-21-3627615824-4061627003-3019543961-1000\Software\Microsoft\Windows\CurrentVersion\Run\516595D8 = "C:\\Users\\Admin\\AppData\\Roaming\\516595D8\\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
N/A N/A C:\Windows\Explorer.EXE N/A
N/A N/A C:\Windows\Explorer.EXE N/A

Suspicious use of SendNotifyMessage

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

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1848 wrote to memory of 2256 N/A C:\Users\Admin\AppData\Local\Temp\1d0237ea405847db1806eb9224e2a9ca_JaffaCakes118.exe C:\Windows\SysWOW64\winver.exe
PID 1848 wrote to memory of 2256 N/A C:\Users\Admin\AppData\Local\Temp\1d0237ea405847db1806eb9224e2a9ca_JaffaCakes118.exe C:\Windows\SysWOW64\winver.exe
PID 1848 wrote to memory of 2256 N/A C:\Users\Admin\AppData\Local\Temp\1d0237ea405847db1806eb9224e2a9ca_JaffaCakes118.exe C:\Windows\SysWOW64\winver.exe
PID 1848 wrote to memory of 2256 N/A C:\Users\Admin\AppData\Local\Temp\1d0237ea405847db1806eb9224e2a9ca_JaffaCakes118.exe C:\Windows\SysWOW64\winver.exe
PID 1848 wrote to memory of 2256 N/A C:\Users\Admin\AppData\Local\Temp\1d0237ea405847db1806eb9224e2a9ca_JaffaCakes118.exe C:\Windows\SysWOW64\winver.exe
PID 2256 wrote to memory of 1380 N/A C:\Windows\SysWOW64\winver.exe C:\Windows\Explorer.EXE
PID 2256 wrote to memory of 1268 N/A C:\Windows\SysWOW64\winver.exe C:\Windows\system32\taskhost.exe
PID 2256 wrote to memory of 1352 N/A C:\Windows\SysWOW64\winver.exe C:\Windows\system32\Dwm.exe
PID 2256 wrote to memory of 1380 N/A C:\Windows\SysWOW64\winver.exe C:\Windows\Explorer.EXE

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\1d0237ea405847db1806eb9224e2a9ca_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\1d0237ea405847db1806eb9224e2a9ca_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/1848-0-0x0000000000020000-0x0000000000021000-memory.dmp

memory/1380-2-0x0000000002A70000-0x0000000002A76000-memory.dmp

memory/1380-3-0x0000000002A70000-0x0000000002A76000-memory.dmp

memory/1380-1-0x0000000002A70000-0x0000000002A76000-memory.dmp

memory/1848-4-0x0000000001C40000-0x0000000002640000-memory.dmp

memory/2256-5-0x0000000000130000-0x0000000000136000-memory.dmp

memory/2256-6-0x0000000076F60000-0x0000000076F61000-memory.dmp

memory/2256-7-0x0000000076F5F000-0x0000000076F60000-memory.dmp

memory/2256-8-0x0000000076F5F000-0x0000000076F61000-memory.dmp

memory/1380-9-0x0000000076DB1000-0x0000000076DB2000-memory.dmp

memory/2256-10-0x0000000076D60000-0x0000000076F09000-memory.dmp

memory/1848-11-0x0000000000400000-0x000000000041A000-memory.dmp

memory/1848-12-0x0000000001C40000-0x0000000002640000-memory.dmp

memory/1352-19-0x0000000001DA0000-0x0000000001DA6000-memory.dmp

memory/1380-21-0x0000000002610000-0x0000000002616000-memory.dmp

memory/1268-23-0x0000000076DB1000-0x0000000076DB2000-memory.dmp

memory/1268-22-0x0000000000450000-0x0000000000456000-memory.dmp

memory/1380-24-0x0000000002610000-0x0000000002616000-memory.dmp

memory/1352-25-0x0000000001DA0000-0x0000000001DA6000-memory.dmp

memory/2256-29-0x0000000000130000-0x0000000000136000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-07-01 23:55

Reported

2024-07-02 00:00

Platform

win10v2004-20240508-en

Max time kernel

130s

Max time network

50s

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-1-5-21-1337824034-2731376981-3755436523-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\452AFD0D = "C:\\Users\\Admin\\AppData\\Roaming\\452AFD0D\\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
N/A N/A C:\Windows\Explorer.EXE N/A
N/A N/A C:\Windows\Explorer.EXE N/A
N/A N/A C:\Windows\Explorer.EXE N/A

Suspicious use of SendNotifyMessage

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

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 620 wrote to memory of 2868 N/A C:\Users\Admin\AppData\Local\Temp\1d0237ea405847db1806eb9224e2a9ca_JaffaCakes118.exe C:\Windows\SysWOW64\winver.exe
PID 620 wrote to memory of 2868 N/A C:\Users\Admin\AppData\Local\Temp\1d0237ea405847db1806eb9224e2a9ca_JaffaCakes118.exe C:\Windows\SysWOW64\winver.exe
PID 620 wrote to memory of 2868 N/A C:\Users\Admin\AppData\Local\Temp\1d0237ea405847db1806eb9224e2a9ca_JaffaCakes118.exe C:\Windows\SysWOW64\winver.exe
PID 620 wrote to memory of 2868 N/A C:\Users\Admin\AppData\Local\Temp\1d0237ea405847db1806eb9224e2a9ca_JaffaCakes118.exe C:\Windows\SysWOW64\winver.exe
PID 2868 wrote to memory of 3436 N/A C:\Windows\SysWOW64\winver.exe C:\Windows\Explorer.EXE
PID 2868 wrote to memory of 2880 N/A C:\Windows\SysWOW64\winver.exe C:\Windows\system32\sihost.exe

Processes

C:\Windows\system32\sihost.exe

sihost.exe

C:\Windows\Explorer.EXE

C:\Windows\Explorer.EXE

C:\Users\Admin\AppData\Local\Temp\1d0237ea405847db1806eb9224e2a9ca_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\1d0237ea405847db1806eb9224e2a9ca_JaffaCakes118.exe"

C:\Windows\SysWOW64\winver.exe

winver

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 424 -p 2868 -ip 2868

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 2868 -s 352

Network

Files

memory/620-0-0x00000000005A0000-0x00000000005A1000-memory.dmp

memory/3436-2-0x0000000001110000-0x0000000001116000-memory.dmp

memory/3436-1-0x0000000001110000-0x0000000001116000-memory.dmp

memory/620-3-0x00000000022E0000-0x0000000002CE0000-memory.dmp

memory/3436-5-0x00007FF85FA0D000-0x00007FF85FA0E000-memory.dmp

memory/2868-6-0x00007FF85F970000-0x00007FF85FB65000-memory.dmp

memory/2868-4-0x00000000771E2000-0x00000000771E3000-memory.dmp

memory/620-7-0x0000000000400000-0x000000000041A000-memory.dmp

memory/620-8-0x00000000022E0000-0x0000000002CE0000-memory.dmp

memory/2868-10-0x0000000000C20000-0x0000000000C26000-memory.dmp

memory/2880-12-0x00000000000B0000-0x00000000000B6000-memory.dmp

memory/2868-13-0x0000000000C20000-0x0000000000C26000-memory.dmp

memory/2880-15-0x00007FF85FB90000-0x00007FF85FB91000-memory.dmp

memory/3436-16-0x00007FF85FB80000-0x00007FF85FB81000-memory.dmp

memory/3436-17-0x00007FF85FBA0000-0x00007FF85FBA1000-memory.dmp