Malware Analysis Report

2024-09-09 17:01

Sample ID 240622-zahdbsxcmq
Target 37b8eaec39ac166d9ae1ee913c5fa24d7085b6c61c16d2eb6ce48a9b4c57eb3a
SHA256 37b8eaec39ac166d9ae1ee913c5fa24d7085b6c61c16d2eb6ce48a9b4c57eb3a
Tags
tinba banker persistence trojan upx
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK Matrix

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

37b8eaec39ac166d9ae1ee913c5fa24d7085b6c61c16d2eb6ce48a9b4c57eb3a

Threat Level: Known bad

The file 37b8eaec39ac166d9ae1ee913c5fa24d7085b6c61c16d2eb6ce48a9b4c57eb3a was found to be: Known bad.

Malicious Activity Summary

tinba banker persistence trojan upx

Tinba / TinyBanker

UPX packed file

Adds Run key to start application

Unsigned PE

Program crash

Suspicious use of SendNotifyMessage

Suspicious use of WriteProcessMemory

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

Suspicious use of FindShellTrayWindow

MITRE ATT&CK Matrix V13

Analysis: static1

Detonation Overview

Reported

2024-06-22 20:30

Signatures

UPX packed file

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

Unsigned PE

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

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-22 20:30

Reported

2024-06-22 20:33

Platform

win10v2004-20240508-en

Max time kernel

147s

Max time network

149s

Command Line

sihost.exe

Signatures

Tinba / TinyBanker

trojan banker tinba

UPX packed file

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

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-3558294865-3673844354-2255444939-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\6BF90546 = "C:\\Users\\Admin\\AppData\\Roaming\\6BF90546\\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

Processes

C:\Windows\system32\sihost.exe

sihost.exe

C:\Windows\Explorer.EXE

C:\Windows\Explorer.EXE

C:\Users\Admin\AppData\Local\Temp\37b8eaec39ac166d9ae1ee913c5fa24d7085b6c61c16d2eb6ce48a9b4c57eb3a.exe

"C:\Users\Admin\AppData\Local\Temp\37b8eaec39ac166d9ae1ee913c5fa24d7085b6c61c16d2eb6ce48a9b4c57eb3a.exe"

C:\Windows\SysWOW64\winver.exe

winver

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 360 -p 3564 -ip 3564

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 3564 -s 352

Network

Files

memory/2116-0-0x0000000000400000-0x000000000041D000-memory.dmp

memory/2116-1-0x0000000002020000-0x0000000002021000-memory.dmp

memory/3428-2-0x00000000012D0000-0x00000000012D6000-memory.dmp

memory/3428-3-0x00000000012D0000-0x00000000012D6000-memory.dmp

memory/2116-4-0x0000000002220000-0x0000000002C20000-memory.dmp

memory/3428-7-0x00007FFD26E4D000-0x00007FFD26E4E000-memory.dmp

memory/3564-6-0x00000000778A2000-0x00000000778A3000-memory.dmp

memory/3564-5-0x0000000000E70000-0x0000000000E76000-memory.dmp

memory/3564-8-0x00007FFD26DB0000-0x00007FFD26FA5000-memory.dmp

memory/2116-9-0x0000000000400000-0x000000000041D000-memory.dmp

memory/2116-10-0x0000000002220000-0x0000000002C20000-memory.dmp

memory/2960-14-0x0000000000D10000-0x0000000000D16000-memory.dmp

memory/3564-15-0x0000000000E70000-0x0000000000E76000-memory.dmp

memory/3428-17-0x00007FFD26FC0000-0x00007FFD26FC1000-memory.dmp

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-22 20:30

Reported

2024-06-22 20:33

Platform

win7-20240508-en

Max time kernel

149s

Max time network

149s

Command Line

"taskhost.exe"

Signatures

Tinba / TinyBanker

trojan banker tinba

UPX packed file

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

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-2737914667-933161113-3798636211-1000\Software\Microsoft\Windows\CurrentVersion\Run\4C25949B = "C:\\Users\\Admin\\AppData\\Roaming\\4C25949B\\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:\Users\Admin\AppData\Local\Temp\37b8eaec39ac166d9ae1ee913c5fa24d7085b6c61c16d2eb6ce48a9b4c57eb3a.exe

"C:\Users\Admin\AppData\Local\Temp\37b8eaec39ac166d9ae1ee913c5fa24d7085b6c61c16d2eb6ce48a9b4c57eb3a.exe"

C:\Windows\SysWOW64\winver.exe

winver

Network

Country Destination Domain Proto
US 8.8.8.8:53 spaines.pw udp
US 8.8.8.8:53 uyhgqunqkxnx.pw udp
US 8.8.8.8:53 vcklmnnejwxx.pw udp
US 8.8.8.8:53 cmnsgscccrej.pw udp
US 8.8.8.8:53 evbsdqvgmpph.pw udp
US 8.8.8.8:53 mfueeimvyrsp.pw udp
US 8.8.8.8:53 utmyhnffxpcj.pw udp
US 8.8.8.8:53 fkmmvfeonnyh.pw udp
US 8.8.8.8:53 gfnlmtcolrrb.pw udp
US 8.8.8.8:53 wwgfyvvdtmeq.pw udp

Files

memory/2056-0-0x0000000000400000-0x000000000041D000-memory.dmp

memory/2056-1-0x0000000000020000-0x0000000000021000-memory.dmp

memory/1192-4-0x0000000003020000-0x0000000003026000-memory.dmp

memory/2056-5-0x0000000001C40000-0x0000000002640000-memory.dmp

memory/1192-3-0x0000000003020000-0x0000000003026000-memory.dmp

memory/1192-2-0x0000000003020000-0x0000000003026000-memory.dmp

memory/1992-6-0x0000000000120000-0x0000000000126000-memory.dmp

memory/1992-11-0x0000000077440000-0x00000000775E9000-memory.dmp

memory/1192-10-0x0000000077491000-0x0000000077492000-memory.dmp

memory/1992-9-0x000000007763F000-0x0000000077641000-memory.dmp

memory/1992-8-0x000000007763F000-0x0000000077640000-memory.dmp

memory/1992-7-0x0000000077640000-0x0000000077641000-memory.dmp

memory/2056-12-0x0000000000400000-0x000000000041D000-memory.dmp

memory/2056-13-0x0000000001C40000-0x0000000002640000-memory.dmp

memory/1164-19-0x00000000001B0000-0x00000000001B6000-memory.dmp

memory/1192-21-0x0000000002FC0000-0x0000000002FC6000-memory.dmp

memory/1112-22-0x0000000001FF0000-0x0000000001FF6000-memory.dmp

memory/1192-25-0x0000000002FC0000-0x0000000002FC6000-memory.dmp

memory/1164-24-0x00000000001B0000-0x00000000001B6000-memory.dmp

memory/1112-23-0x0000000077491000-0x0000000077492000-memory.dmp

memory/1992-29-0x0000000000120000-0x0000000000126000-memory.dmp