tinba | a700028819406ff048b32106ec7f82656f4ef0b9c637e33761f75549f3bb2ea2

Analysis

max time kernel
119s
max time network
120s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
16/09/2024, 07:53

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General

Target

Trojan.Win32.Tinba.exe
Size

34KB
MD5

170c3cb80e1d26438d071ae886c0bcf0
SHA1

7a8ea7b6e8826286754870705bf73a399af52bdd
SHA256

a700028819406ff048b32106ec7f82656f4ef0b9c637e33761f75549f3bb2ea2
SHA512

c53c61d708314563654cc60742a8ced996643c9b16f610776ef9a8b02f7d57d0ee29a5d6ae2b2315f161f570645d9cd9ee62596258751587ecc23182d2e93763
SSDEEP

768:Ap22qWFcy5XQ7lO41uirwA98p3MpkNBxd0cJWV6dy/x9J2:ApYoX58z1uirL98xMWnT0OQ9J2

Score

10^/10

tinba banker discovery persistence trojan upx

Malware Config

Signatures

Tinba / TinyBanker
Banking trojan which uses packet sniffing to steal data.
trojan banker tinba

UPX packed file 1 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral1/memory/1868-0-0x0000000000400000-0x0000000000417000-memory.dmp	upx

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3290804112-2823094203-3137964600-1000\Software\Microsoft\Windows\CurrentVersion\Run\177CD73B = "C:\\Users\\Admin\\AppData\\Roaming\\177CD73B\\bin.exe"	winver.exe

System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Trojan.Win32.Tinba.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winver.exe

Suspicious behavior: EnumeratesProcesses 57 IoCs

pid	Process
2420	winver.exe
2420	winver.exe
2420	winver.exe
2420	winver.exe
2420	winver.exe
2420	winver.exe
2420	winver.exe
2420	winver.exe
2420	winver.exe
2420	winver.exe
2420	winver.exe
2420	winver.exe
2420	winver.exe
2420	winver.exe
2420	winver.exe
2420	winver.exe
2420	winver.exe
2420	winver.exe
2420	winver.exe
2420	winver.exe
2420	winver.exe
2420	winver.exe
2420	winver.exe
2420	winver.exe
2420	winver.exe
2420	winver.exe
2420	winver.exe
2420	winver.exe
2420	winver.exe
2420	winver.exe
2420	winver.exe
2420	winver.exe
2420	winver.exe
2420	winver.exe
2420	winver.exe
2420	winver.exe
2420	winver.exe
2420	winver.exe
2420	winver.exe
2420	winver.exe
2420	winver.exe
2420	winver.exe
2420	winver.exe
2420	winver.exe
2420	winver.exe
2420	winver.exe
2420	winver.exe
2420	winver.exe
2420	winver.exe
2420	winver.exe
2420	winver.exe
2420	winver.exe
2420	winver.exe
2420	winver.exe
2420	winver.exe
2420	winver.exe
2420	winver.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
2420	winver.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 1868 wrote to memory of 2420	1868	Trojan.Win32.Tinba.exe	29
PID 1868 wrote to memory of 2420	1868	Trojan.Win32.Tinba.exe	29
PID 1868 wrote to memory of 2420	1868	Trojan.Win32.Tinba.exe	29
PID 1868 wrote to memory of 2420	1868	Trojan.Win32.Tinba.exe	29
PID 1868 wrote to memory of 2420	1868	Trojan.Win32.Tinba.exe	29
PID 2420 wrote to memory of 1216	2420	winver.exe	21
PID 2420 wrote to memory of 1108	2420	winver.exe	19
PID 2420 wrote to memory of 1176	2420	winver.exe	20
PID 2420 wrote to memory of 1216	2420	winver.exe	21
PID 2420 wrote to memory of 1496	2420	winver.exe	23

C:\Windows\system32\taskhost.exe
"taskhost.exe"
1⤵
PID:1108

C:\Windows\system32\Dwm.exe
"C:\Windows\system32\Dwm.exe"
1⤵
PID:1176

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:1216
- C:\Users\Admin\AppData\Local\Temp\Trojan.Win32.Tinba.exe
  "C:\Users\Admin\AppData\Local\Temp\Trojan.Win32.Tinba.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1868
- - C:\Windows\SysWOW64\winver.exe
    winver
    3⤵
    - Adds Run key to start application
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of FindShellTrayWindow
    - Suspicious use of WriteProcessMemory
    PID:2420

C:\Windows\system32\DllHost.exe
C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
1⤵
PID:1496

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1108-24-0x0000000001F90000-0x0000000001F96000-memory.dmp

Filesize
24KB

Download
memory/1108-25-0x0000000077151000-0x0000000077152000-memory.dmp

Filesize
4KB

Download
memory/1176-27-0x0000000001F20000-0x0000000001F26000-memory.dmp

Filesize
24KB

Download
memory/1176-19-0x0000000001F20000-0x0000000001F26000-memory.dmp

Filesize
24KB

Download
memory/1216-3-0x0000000002D80000-0x0000000002D86000-memory.dmp

Filesize
24KB

Download
memory/1216-2-0x0000000002D80000-0x0000000002D86000-memory.dmp

Filesize
24KB

Download
memory/1216-10-0x0000000077151000-0x0000000077152000-memory.dmp

Filesize
4KB

Download
memory/1216-4-0x0000000002D80000-0x0000000002D86000-memory.dmp

Filesize
24KB

Download
memory/1216-30-0x0000000002D30000-0x0000000002D36000-memory.dmp

Filesize
24KB

Download
memory/1216-21-0x0000000002D30000-0x0000000002D36000-memory.dmp

Filesize
24KB

Download
memory/1496-23-0x0000000001E70000-0x0000000001E76000-memory.dmp

Filesize
24KB

Download
memory/1496-28-0x0000000001E70000-0x0000000001E76000-memory.dmp

Filesize
24KB

Download
memory/1496-29-0x0000000077151000-0x0000000077152000-memory.dmp

Filesize
4KB

Download
memory/1868-12-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/1868-13-0x0000000001CF0000-0x00000000026F0000-memory.dmp

Filesize
10.0MB

Download
memory/1868-0-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/1868-5-0x0000000001CF0000-0x00000000026F0000-memory.dmp

Filesize
10.0MB

Download
memory/1868-1-0x0000000000020000-0x0000000000021000-memory.dmp

Filesize
4KB

Download
memory/2420-26-0x00000000000B0000-0x00000000000B6000-memory.dmp

Filesize
24KB

Download
memory/2420-6-0x00000000000B0000-0x00000000000B6000-memory.dmp

Filesize
24KB

Download
memory/2420-7-0x0000000077300000-0x0000000077301000-memory.dmp

Filesize
4KB

Download
memory/2420-8-0x00000000772FF000-0x0000000077300000-memory.dmp

Filesize
4KB

Download
memory/2420-9-0x00000000772FF000-0x0000000077301000-memory.dmp

Filesize
8KB

Download
memory/2420-11-0x0000000077100000-0x00000000772A9000-memory.dmp

Filesize
1.7MB

Download
memory/2420-35-0x00000000001F0000-0x00000000001F1000-memory.dmp

Filesize
4KB

Download