tinba | 65bb3a2f62ee031c0b6c43b5ba5cdccc4923976539de593b74323c21b1c3b72c

Analysis

max time kernel
149s
max time network
149s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
03/09/2024, 22:44

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General

Target

65bb3a2f62ee031c0b6c43b5ba5cdccc4923976539de593b74323c21b1c3b72c.exe
Size

45KB
MD5

6f339c98724762c676b4139175e97a85
SHA1

9725d03e75c5dc9167ea2ccfdc39f3f34f02bb9c
SHA256

65bb3a2f62ee031c0b6c43b5ba5cdccc4923976539de593b74323c21b1c3b72c
SHA512

407d365d56eb5a5af42625320600ca74ce466fd9ca74d0ddecdf1321b1ac8bd7280c544feba93edafff3e9aac2e985a78fe65fdae4b2748269169c44af464276
SSDEEP

768:WhP0kDE9N5dCA8J7VHXdrIniQaBTT+QQ+r1n4K8+C9TtIuCjaqUODvJVQ2f:6sWE9N5dFu53dsniQaB/xZ14n7zIF+qr

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/780-0-0x0000000000400000-0x000000000041D000-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-1-5-21-1506706701-1246725540-2219210854-1000\Software\Microsoft\Windows\CurrentVersion\Run\C2A4BB0B = "C:\\Users\\Admin\\AppData\\Roaming\\C2A4BB0B\\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	65bb3a2f62ee031c0b6c43b5ba5cdccc4923976539de593b74323c21b1c3b72c.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winver.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
2488	winver.exe
2488	winver.exe
2488	winver.exe
2488	winver.exe
2488	winver.exe
2488	winver.exe
2488	winver.exe
2488	winver.exe
2488	winver.exe
2488	winver.exe
2488	winver.exe
2488	winver.exe
2488	winver.exe
2488	winver.exe
2488	winver.exe
2488	winver.exe
2488	winver.exe
2488	winver.exe
2488	winver.exe
2488	winver.exe
2488	winver.exe
2488	winver.exe
2488	winver.exe
2488	winver.exe
2488	winver.exe
2488	winver.exe
2488	winver.exe
2488	winver.exe
2488	winver.exe
2488	winver.exe
2488	winver.exe
2488	winver.exe
2488	winver.exe
2488	winver.exe
2488	winver.exe
2488	winver.exe
2488	winver.exe
2488	winver.exe
2488	winver.exe
2488	winver.exe
2488	winver.exe
2488	winver.exe
2488	winver.exe
2488	winver.exe
2488	winver.exe
2488	winver.exe
2488	winver.exe
2488	winver.exe
2488	winver.exe
2488	winver.exe
2488	winver.exe
2488	winver.exe
2488	winver.exe
2488	winver.exe
2488	winver.exe
2488	winver.exe
2488	winver.exe
2488	winver.exe
2488	winver.exe
2488	winver.exe
2488	winver.exe
2488	winver.exe
2488	winver.exe
2488	winver.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
2488	winver.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 780 wrote to memory of 2488	780	65bb3a2f62ee031c0b6c43b5ba5cdccc4923976539de593b74323c21b1c3b72c.exe	32
PID 780 wrote to memory of 2488	780	65bb3a2f62ee031c0b6c43b5ba5cdccc4923976539de593b74323c21b1c3b72c.exe	32
PID 780 wrote to memory of 2488	780	65bb3a2f62ee031c0b6c43b5ba5cdccc4923976539de593b74323c21b1c3b72c.exe	32
PID 780 wrote to memory of 2488	780	65bb3a2f62ee031c0b6c43b5ba5cdccc4923976539de593b74323c21b1c3b72c.exe	32
PID 780 wrote to memory of 2488	780	65bb3a2f62ee031c0b6c43b5ba5cdccc4923976539de593b74323c21b1c3b72c.exe	32
PID 2488 wrote to memory of 1200	2488	winver.exe	21
PID 2488 wrote to memory of 1116	2488	winver.exe	19
PID 2488 wrote to memory of 1176	2488	winver.exe	20
PID 2488 wrote to memory of 1200	2488	winver.exe	21
PID 2488 wrote to memory of 1456	2488	winver.exe	25

C:\Windows\system32\taskhost.exe
"taskhost.exe"
1⤵
PID:1116

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

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:1200
- C:\Users\Admin\AppData\Local\Temp\65bb3a2f62ee031c0b6c43b5ba5cdccc4923976539de593b74323c21b1c3b72c.exe
  "C:\Users\Admin\AppData\Local\Temp\65bb3a2f62ee031c0b6c43b5ba5cdccc4923976539de593b74323c21b1c3b72c.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:780
- - 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:2488

C:\Windows\system32\DllHost.exe
C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
1⤵
PID:1456

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/780-5-0x0000000001C50000-0x0000000002650000-memory.dmp

Filesize
10.0MB

Download
memory/780-1-0x0000000000020000-0x0000000000021000-memory.dmp

Filesize
4KB

Download
memory/780-0-0x0000000000400000-0x000000000041D000-memory.dmp

Filesize
116KB

Download
memory/780-13-0x0000000001C50000-0x0000000002650000-memory.dmp

Filesize
10.0MB

Download
memory/780-12-0x0000000000400000-0x000000000041D000-memory.dmp

Filesize
116KB

Download
memory/1116-24-0x0000000002090000-0x0000000002096000-memory.dmp

Filesize
24KB

Download
memory/1116-25-0x0000000077511000-0x0000000077512000-memory.dmp

Filesize
4KB

Download
memory/1176-21-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/1176-31-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/1200-4-0x0000000002E60000-0x0000000002E66000-memory.dmp

Filesize
24KB

Download
memory/1200-23-0x0000000002E00000-0x0000000002E06000-memory.dmp

Filesize
24KB

Download
memory/1200-10-0x0000000077511000-0x0000000077512000-memory.dmp

Filesize
4KB

Download
memory/1200-2-0x0000000002E60000-0x0000000002E66000-memory.dmp

Filesize
24KB

Download
memory/1200-3-0x0000000002E60000-0x0000000002E66000-memory.dmp

Filesize
24KB

Download
memory/1200-27-0x0000000002E00000-0x0000000002E06000-memory.dmp

Filesize
24KB

Download
memory/1456-32-0x0000000077511000-0x0000000077512000-memory.dmp

Filesize
4KB

Download
memory/1456-33-0x0000000001F10000-0x0000000001F16000-memory.dmp

Filesize
24KB

Download
memory/2488-9-0x00000000776BF000-0x00000000776C1000-memory.dmp

Filesize
8KB

Download
memory/2488-26-0x0000000000160000-0x0000000000166000-memory.dmp

Filesize
24KB

Download
memory/2488-6-0x0000000000160000-0x0000000000166000-memory.dmp

Filesize
24KB

Download
memory/2488-7-0x00000000776C0000-0x00000000776C1000-memory.dmp

Filesize
4KB

Download
memory/2488-8-0x00000000776BF000-0x00000000776C0000-memory.dmp

Filesize
4KB

Download
memory/2488-11-0x00000000774C0000-0x0000000077669000-memory.dmp

Filesize
1.7MB

Download
memory/2488-38-0x00000000001B0000-0x00000000001B1000-memory.dmp

Filesize
4KB

Download