tinba | 53897af4e2ace67941971c55fff848fd39c792c2a7008b757d0d0897f3229afe

Analysis

max time kernel
118s
max time network
118s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
11-12-2024 05:31

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General

Target

53897af4e2ace67941971c55fff848fd39c792c2a7008b757d0d0897f3229afeN.exe
Size

45KB
MD5

b78b23e121c59b6547e441d0fe8199d0
SHA1

6ad56b7c430ed184b8ae9d2c7e93ff0c1c69c48a
SHA256

53897af4e2ace67941971c55fff848fd39c792c2a7008b757d0d0897f3229afe
SHA512

ed4b5626bd35eeb30f759e2b6c583b5325601336dbdc9bb0cfe33b14c98f787444064ea59a8d738852fe04278082793dac2c9126c89201c9765f8757ac445e21
SSDEEP

768:ohP0kDE9N5dCA8J7VHXdrIniQaBTT+QQ+r1n4K8+C9TtIuCjaqUODvJVQ2/:UsWE9N5dFu53dsniQaB/xZ14n7zIF+qL

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
Tinba family
tinba

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-1-5-21-3551809350-4263495960-1443967649-1000\Software\Microsoft\Windows\CurrentVersion\Run\B7EC5EF2 = "C:\\Users\\Admin\\AppData\\Roaming\\B7EC5EF2\\bin.exe"	winver.exe

UPX packed file 1 IoCs

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

upx

resource	yara_rule
behavioral1/memory/3036-0-0x0000000000400000-0x000000000041D000-memory.dmp	upx

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	winver.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	53897af4e2ace67941971c55fff848fd39c792c2a7008b757d0d0897f3229afeN.exe

Suspicious behavior: EnumeratesProcesses 57 IoCs

pid	Process
2576	winver.exe
2576	winver.exe
2576	winver.exe
2576	winver.exe
2576	winver.exe
2576	winver.exe
2576	winver.exe
2576	winver.exe
2576	winver.exe
2576	winver.exe
2576	winver.exe
2576	winver.exe
2576	winver.exe
2576	winver.exe
2576	winver.exe
2576	winver.exe
2576	winver.exe
2576	winver.exe
2576	winver.exe
2576	winver.exe
2576	winver.exe
2576	winver.exe
2576	winver.exe
2576	winver.exe
2576	winver.exe
2576	winver.exe
2576	winver.exe
2576	winver.exe
2576	winver.exe
2576	winver.exe
2576	winver.exe
2576	winver.exe
2576	winver.exe
2576	winver.exe
2576	winver.exe
2576	winver.exe
2576	winver.exe
2576	winver.exe
2576	winver.exe
2576	winver.exe
2576	winver.exe
2576	winver.exe
2576	winver.exe
2576	winver.exe
2576	winver.exe
2576	winver.exe
2576	winver.exe
2576	winver.exe
2576	winver.exe
2576	winver.exe
2576	winver.exe
2576	winver.exe
2576	winver.exe
2576	winver.exe
2576	winver.exe
2576	winver.exe
2576	winver.exe

Suspicious use of FindShellTrayWindow 3 IoCs

pid	Process
2576	winver.exe
1204	Explorer.EXE
1204	Explorer.EXE

Suspicious use of SendNotifyMessage 2 IoCs

pid	Process
1204	Explorer.EXE
1204	Explorer.EXE

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 3036 wrote to memory of 2576	3036	53897af4e2ace67941971c55fff848fd39c792c2a7008b757d0d0897f3229afeN.exe	31
PID 3036 wrote to memory of 2576	3036	53897af4e2ace67941971c55fff848fd39c792c2a7008b757d0d0897f3229afeN.exe	31
PID 3036 wrote to memory of 2576	3036	53897af4e2ace67941971c55fff848fd39c792c2a7008b757d0d0897f3229afeN.exe	31
PID 3036 wrote to memory of 2576	3036	53897af4e2ace67941971c55fff848fd39c792c2a7008b757d0d0897f3229afeN.exe	31
PID 3036 wrote to memory of 2576	3036	53897af4e2ace67941971c55fff848fd39c792c2a7008b757d0d0897f3229afeN.exe	31
PID 2576 wrote to memory of 1204	2576	winver.exe	21
PID 2576 wrote to memory of 1112	2576	winver.exe	19
PID 2576 wrote to memory of 1164	2576	winver.exe	20
PID 2576 wrote to memory of 1204	2576	winver.exe	21
PID 2576 wrote to memory of 496	2576	winver.exe	25

C:\Windows\system32\taskhost.exe
"taskhost.exe"
1⤵
PID:1112

C:\Windows\system32\Dwm.exe
"C:\Windows\system32\Dwm.exe"
1⤵
PID:1164

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
PID:1204
- C:\Users\Admin\AppData\Local\Temp\53897af4e2ace67941971c55fff848fd39c792c2a7008b757d0d0897f3229afeN.exe
  "C:\Users\Admin\AppData\Local\Temp\53897af4e2ace67941971c55fff848fd39c792c2a7008b757d0d0897f3229afeN.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3036
- - 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:2576

C:\Windows\system32\DllHost.exe
C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
1⤵
PID:496

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/496-24-0x0000000001C40000-0x0000000001C46000-memory.dmp

Filesize
24KB

Download
memory/496-30-0x00000000770F1000-0x00000000770F2000-memory.dmp

Filesize
4KB

Download
memory/496-31-0x0000000001C40000-0x0000000001C46000-memory.dmp

Filesize
24KB

Download
memory/1112-26-0x00000000770F1000-0x00000000770F2000-memory.dmp

Filesize
4KB

Download
memory/1112-25-0x00000000001E0000-0x00000000001E6000-memory.dmp

Filesize
24KB

Download
memory/1164-29-0x0000000001EA0000-0x0000000001EA6000-memory.dmp

Filesize
24KB

Download
memory/1164-20-0x0000000001EA0000-0x0000000001EA6000-memory.dmp

Filesize
24KB

Download
memory/1204-22-0x00000000021C0000-0x00000000021C6000-memory.dmp

Filesize
24KB

Download
memory/1204-10-0x00000000770F1000-0x00000000770F2000-memory.dmp

Filesize
4KB

Download
memory/1204-28-0x00000000021C0000-0x00000000021C6000-memory.dmp

Filesize
24KB

Download
memory/1204-2-0x0000000002F50000-0x0000000002F56000-memory.dmp

Filesize
24KB

Download
memory/1204-3-0x0000000002F50000-0x0000000002F56000-memory.dmp

Filesize
24KB

Download
memory/1204-4-0x0000000002F50000-0x0000000002F56000-memory.dmp

Filesize
24KB

Download
memory/2576-11-0x00000000770A0000-0x0000000077249000-memory.dmp

Filesize
1.7MB

Download
memory/2576-27-0x0000000000180000-0x0000000000186000-memory.dmp

Filesize
24KB

Download
memory/2576-6-0x0000000000180000-0x0000000000186000-memory.dmp

Filesize
24KB

Download
memory/2576-7-0x00000000772A0000-0x00000000772A1000-memory.dmp

Filesize
4KB

Download
memory/2576-8-0x000000007729F000-0x00000000772A0000-memory.dmp

Filesize
4KB

Download
memory/2576-9-0x000000007729F000-0x00000000772A1000-memory.dmp

Filesize
8KB

Download
memory/2576-36-0x0000000000210000-0x0000000000211000-memory.dmp

Filesize
4KB

Download
memory/3036-13-0x0000000001D10000-0x0000000002710000-memory.dmp

Filesize
10.0MB

Download
memory/3036-12-0x0000000000400000-0x000000000041D000-memory.dmp

Filesize
116KB

Download
memory/3036-0-0x0000000000400000-0x000000000041D000-memory.dmp

Filesize
116KB

Download
memory/3036-5-0x0000000001D10000-0x0000000002710000-memory.dmp

Filesize
10.0MB

Download
memory/3036-1-0x0000000000020000-0x0000000000021000-memory.dmp

Filesize
4KB

Download