Malware Analysis Report

2025-01-19 07:39

Sample ID 241117-jjxllsverm
Target 3cf5b8e27a65ab10c6cd04fedb1b471a2c381d0518a98ca4152e3b44940eae6bN.exe
SHA256 3cf5b8e27a65ab10c6cd04fedb1b471a2c381d0518a98ca4152e3b44940eae6b
Tags
upx tinba banker discovery 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

3cf5b8e27a65ab10c6cd04fedb1b471a2c381d0518a98ca4152e3b44940eae6b

Threat Level: Known bad

The file 3cf5b8e27a65ab10c6cd04fedb1b471a2c381d0518a98ca4152e3b44940eae6bN.exe was found to be: Known bad.

Malicious Activity Summary

upx tinba banker discovery persistence trojan

Tinba / TinyBanker

Tinba family

Adds Run key to start application

UPX packed file

Unsigned PE

System Location Discovery: System Language Discovery

Program crash

Suspicious use of FindShellTrayWindow

Suspicious behavior: EnumeratesProcesses

Suspicious use of UnmapMainImage

Suspicious use of AdjustPrivilegeToken

Modifies registry class

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-11-17 07:42

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-11-17 07:42

Reported

2024-11-17 07:44

Platform

win7-20241010-en

Max time kernel

118s

Max time network

119s

Command Line

"taskhost.exe"

Signatures

Tinba / TinyBanker

trojan banker tinba

Tinba family

tinba

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-2039016743-699959520-214465309-1000\Software\Microsoft\Windows\CurrentVersion\Run\6BFD42E3 = "C:\\Users\\Admin\\AppData\\Roaming\\6BFD42E3\\bin.exe" C:\Windows\SysWOW64\winver.exe N/A

UPX packed file

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

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\3cf5b8e27a65ab10c6cd04fedb1b471a2c381d0518a98ca4152e3b44940eae6bN.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 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

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\3cf5b8e27a65ab10c6cd04fedb1b471a2c381d0518a98ca4152e3b44940eae6bN.exe

"C:\Users\Admin\AppData\Local\Temp\3cf5b8e27a65ab10c6cd04fedb1b471a2c381d0518a98ca4152e3b44940eae6bN.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/2524-0-0x0000000000400000-0x000000000041E000-memory.dmp

memory/2524-1-0x0000000000020000-0x0000000000021000-memory.dmp

memory/1196-2-0x0000000002D90000-0x0000000002D96000-memory.dmp

memory/1196-3-0x0000000002D90000-0x0000000002D96000-memory.dmp

memory/1196-4-0x0000000002D90000-0x0000000002D96000-memory.dmp

memory/2524-5-0x0000000001C90000-0x0000000002690000-memory.dmp

memory/2432-11-0x0000000077820000-0x00000000779C9000-memory.dmp

memory/1196-10-0x0000000077871000-0x0000000077872000-memory.dmp

memory/2432-9-0x0000000077A1F000-0x0000000077A21000-memory.dmp

memory/2432-8-0x0000000077A1F000-0x0000000077A20000-memory.dmp

memory/2432-7-0x0000000077A20000-0x0000000077A21000-memory.dmp

memory/2432-6-0x00000000000B0000-0x00000000000B6000-memory.dmp

memory/2524-12-0x0000000000400000-0x000000000041E000-memory.dmp

memory/2524-13-0x0000000001C90000-0x0000000002690000-memory.dmp

memory/1596-25-0x0000000001E70000-0x0000000001E76000-memory.dmp

memory/1196-22-0x0000000002600000-0x0000000002606000-memory.dmp

memory/1160-20-0x00000000002A0000-0x00000000002A6000-memory.dmp

memory/1196-32-0x0000000002600000-0x0000000002606000-memory.dmp

memory/1160-31-0x0000000077871000-0x0000000077872000-memory.dmp

memory/1160-30-0x00000000002A0000-0x00000000002A6000-memory.dmp

memory/1108-29-0x0000000077871000-0x0000000077872000-memory.dmp

memory/1108-28-0x00000000001E0000-0x00000000001E6000-memory.dmp

memory/1596-27-0x0000000077871000-0x0000000077872000-memory.dmp

memory/1596-26-0x0000000001E70000-0x0000000001E76000-memory.dmp

memory/2432-33-0x00000000000B0000-0x00000000000B6000-memory.dmp

memory/1160-37-0x00000000002A0000-0x00000000002A6000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-11-17 07:42

Reported

2024-11-17 07:44

Platform

win10v2004-20241007-en

Max time kernel

117s

Max time network

96s

Command Line

sihost.exe

Signatures

Tinba / TinyBanker

trojan banker tinba

Tinba family

tinba

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\9D29CB63 = "C:\\Users\\Admin\\AppData\\Roaming\\9D29CB63\\bin.exe" C:\Windows\SysWOW64\winver.exe N/A

UPX packed file

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

Program crash

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

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\3cf5b8e27a65ab10c6cd04fedb1b471a2c381d0518a98ca4152e3b44940eae6bN.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWOW64\winver.exe N/A

Modifies registry class

Description Indicator Process Target
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\ C:\Windows\Explorer.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

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
Token: SeShutdownPrivilege N/A C:\Windows\Explorer.EXE N/A
Token: SeCreatePagefilePrivilege N/A C:\Windows\Explorer.EXE N/A
Token: SeShutdownPrivilege N/A C:\Windows\Explorer.EXE N/A
Token: SeCreatePagefilePrivilege N/A C:\Windows\Explorer.EXE N/A
Token: SeShutdownPrivilege N/A C:\Windows\Explorer.EXE N/A
Token: SeCreatePagefilePrivilege N/A C:\Windows\Explorer.EXE N/A
Token: SeShutdownPrivilege N/A C:\Windows\Explorer.EXE N/A
Token: SeCreatePagefilePrivilege N/A C:\Windows\Explorer.EXE N/A
Token: SeShutdownPrivilege N/A C:\Windows\Explorer.EXE N/A
Token: SeCreatePagefilePrivilege N/A C:\Windows\Explorer.EXE N/A
Token: SeShutdownPrivilege N/A C:\Windows\Explorer.EXE N/A
Token: SeCreatePagefilePrivilege N/A C:\Windows\Explorer.EXE N/A
Token: SeShutdownPrivilege N/A C:\Windows\Explorer.EXE N/A
Token: SeCreatePagefilePrivilege N/A C:\Windows\Explorer.EXE N/A
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

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\3cf5b8e27a65ab10c6cd04fedb1b471a2c381d0518a98ca4152e3b44940eae6bN.exe

"C:\Users\Admin\AppData\Local\Temp\3cf5b8e27a65ab10c6cd04fedb1b471a2c381d0518a98ca4152e3b44940eae6bN.exe"

C:\Windows\SysWOW64\winver.exe

winver

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2252 -ip 2252

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 2252 -s 352

Network

Country Destination Domain Proto
US 8.8.8.8:53 217.106.137.52.in-addr.arpa udp
US 8.8.8.8:53 83.210.23.2.in-addr.arpa udp
US 8.8.8.8:53 14.160.190.20.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 28.118.140.52.in-addr.arpa udp
US 8.8.8.8:53 200.163.202.172.in-addr.arpa udp
US 8.8.8.8:53 18.31.95.13.in-addr.arpa udp
US 8.8.8.8:53 14.227.111.52.in-addr.arpa udp

Files

memory/1384-0-0x0000000000400000-0x000000000041E000-memory.dmp

memory/1384-1-0x00000000005C0000-0x00000000005C1000-memory.dmp

memory/3428-3-0x0000000000B40000-0x0000000000B46000-memory.dmp

memory/3428-2-0x0000000000B40000-0x0000000000B46000-memory.dmp

memory/1384-4-0x00000000022E0000-0x0000000002CE0000-memory.dmp

memory/3428-6-0x00007FFB2F0AD000-0x00007FFB2F0AE000-memory.dmp

memory/2252-5-0x0000000077562000-0x0000000077563000-memory.dmp

memory/2252-7-0x00007FFB2F010000-0x00007FFB2F205000-memory.dmp

memory/1384-9-0x0000000000400000-0x000000000041E000-memory.dmp

memory/1384-10-0x00000000022E0000-0x0000000002CE0000-memory.dmp

memory/3428-12-0x00007FFB2F220000-0x00007FFB2F221000-memory.dmp

memory/3428-11-0x00007FFB2F240000-0x00007FFB2F241000-memory.dmp

memory/2252-14-0x0000000001100000-0x0000000001106000-memory.dmp

memory/912-16-0x0000000000450000-0x0000000000456000-memory.dmp

memory/2252-17-0x0000000001100000-0x0000000001106000-memory.dmp