tinba | 4a306d1a6f960a1ba00d257bdee45f53eb69b37d78c6c1efb945001f814821e2

Analysis

max time kernel
118s
max time network
118s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
05-12-2024 20:11

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General

Target

4a306d1a6f960a1ba00d257bdee45f53eb69b37d78c6c1efb945001f814821e2.exe
Size

34KB
MD5

6bd6d168d6ec32aab21dc75cbafcbb58
SHA1

ae4b77a65f2b563d2dd72fa6763d412f3d78a867
SHA256

4a306d1a6f960a1ba00d257bdee45f53eb69b37d78c6c1efb945001f814821e2
SHA512

aeb736aea0246a81a6d598a258b51ab99de4bbb42fd14d7334b088fc31f91990ae3ec9af35a7f74975084623764fc6e37cd7bd320467022be52dd2356a7a12f7
SSDEEP

768:xp22qWFcy5XQ7lO41uirwA98p3MpkNBxd0cJWV6dy/x9Ji:xpYoX58z1uirL98xMWnT0OQ9Ji

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-1-5-21-2872745919-2748461613-2989606286-1000\Software\Microsoft\Windows\CurrentVersion\Run\092E7ACB = "C:\\Users\\Admin\\AppData\\Roaming\\092E7ACB\\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/2272-0-0x0000000000400000-0x0000000000417000-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	4a306d1a6f960a1ba00d257bdee45f53eb69b37d78c6c1efb945001f814821e2.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winver.exe

Suspicious behavior: EnumeratesProcesses 57 IoCs

pid	Process
2400	winver.exe
2400	winver.exe
2400	winver.exe
2400	winver.exe
2400	winver.exe
2400	winver.exe
2400	winver.exe
2400	winver.exe
2400	winver.exe
2400	winver.exe
2400	winver.exe
2400	winver.exe
2400	winver.exe
2400	winver.exe
2400	winver.exe
2400	winver.exe
2400	winver.exe
2400	winver.exe
2400	winver.exe
2400	winver.exe
2400	winver.exe
2400	winver.exe
2400	winver.exe
2400	winver.exe
2400	winver.exe
2400	winver.exe
2400	winver.exe
2400	winver.exe
2400	winver.exe
2400	winver.exe
2400	winver.exe
2400	winver.exe
2400	winver.exe
2400	winver.exe
2400	winver.exe
2400	winver.exe
2400	winver.exe
2400	winver.exe
2400	winver.exe
2400	winver.exe
2400	winver.exe
2400	winver.exe
2400	winver.exe
2400	winver.exe
2400	winver.exe
2400	winver.exe
2400	winver.exe
2400	winver.exe
2400	winver.exe
2400	winver.exe
2400	winver.exe
2400	winver.exe
2400	winver.exe
2400	winver.exe
2400	winver.exe
2400	winver.exe
2400	winver.exe

Suspicious use of FindShellTrayWindow 3 IoCs

pid	Process
2400	winver.exe
1112	Explorer.EXE
1112	Explorer.EXE

Suspicious use of SendNotifyMessage 2 IoCs

pid	Process
1112	Explorer.EXE
1112	Explorer.EXE

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 2272 wrote to memory of 2400	2272	4a306d1a6f960a1ba00d257bdee45f53eb69b37d78c6c1efb945001f814821e2.exe	31
PID 2272 wrote to memory of 2400	2272	4a306d1a6f960a1ba00d257bdee45f53eb69b37d78c6c1efb945001f814821e2.exe	31
PID 2272 wrote to memory of 2400	2272	4a306d1a6f960a1ba00d257bdee45f53eb69b37d78c6c1efb945001f814821e2.exe	31
PID 2272 wrote to memory of 2400	2272	4a306d1a6f960a1ba00d257bdee45f53eb69b37d78c6c1efb945001f814821e2.exe	31
PID 2272 wrote to memory of 2400	2272	4a306d1a6f960a1ba00d257bdee45f53eb69b37d78c6c1efb945001f814821e2.exe	31
PID 2400 wrote to memory of 1112	2400	winver.exe	20
PID 2400 wrote to memory of 1032	2400	winver.exe	17
PID 2400 wrote to memory of 1048	2400	winver.exe	18
PID 2400 wrote to memory of 1112	2400	winver.exe	20
PID 2400 wrote to memory of 1420	2400	winver.exe	25

C:\Windows\system32\Dwm.exe
"C:\Windows\system32\Dwm.exe"
1⤵
PID:1032

C:\Windows\system32\taskhost.exe
"taskhost.exe"
1⤵
PID:1048

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
PID:1112
- C:\Users\Admin\AppData\Local\Temp\4a306d1a6f960a1ba00d257bdee45f53eb69b37d78c6c1efb945001f814821e2.exe
  "C:\Users\Admin\AppData\Local\Temp\4a306d1a6f960a1ba00d257bdee45f53eb69b37d78c6c1efb945001f814821e2.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2272
- - 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:2400

C:\Windows\system32\DllHost.exe
C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
1⤵
PID:1420

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/1032-26-0x0000000001EA0000-0x0000000001EA6000-memory.dmp

Filesize
24KB

Download
memory/1032-27-0x0000000076ED1000-0x0000000076ED2000-memory.dmp

Filesize
4KB

Download
memory/1032-25-0x0000000076ED1000-0x0000000076ED2000-memory.dmp

Filesize
4KB

Download
memory/1032-24-0x0000000076ED1000-0x0000000076ED2000-memory.dmp

Filesize
4KB

Download
memory/1048-21-0x0000000001F10000-0x0000000001F16000-memory.dmp

Filesize
24KB

Download
memory/1048-31-0x0000000001F10000-0x0000000001F16000-memory.dmp

Filesize
24KB

Download
memory/1112-23-0x00000000024E0000-0x00000000024E6000-memory.dmp

Filesize
24KB

Download
memory/1112-10-0x0000000076ED1000-0x0000000076ED2000-memory.dmp

Filesize
4KB

Download
memory/1112-2-0x0000000002530000-0x0000000002536000-memory.dmp

Filesize
24KB

Download
memory/1112-3-0x0000000002530000-0x0000000002536000-memory.dmp

Filesize
24KB

Download
memory/1112-4-0x0000000002530000-0x0000000002536000-memory.dmp

Filesize
24KB

Download
memory/1112-34-0x00000000024E0000-0x00000000024E6000-memory.dmp

Filesize
24KB

Download
memory/1420-33-0x0000000076ED1000-0x0000000076ED2000-memory.dmp

Filesize
4KB

Download
memory/1420-32-0x0000000001E60000-0x0000000001E66000-memory.dmp

Filesize
24KB

Download
memory/1420-30-0x0000000001E60000-0x0000000001E66000-memory.dmp

Filesize
24KB

Download
memory/2272-12-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2272-13-0x0000000001DF0000-0x00000000027F0000-memory.dmp

Filesize
10.0MB

Download
memory/2272-0-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2272-5-0x0000000001DF0000-0x00000000027F0000-memory.dmp

Filesize
10.0MB

Download
memory/2272-1-0x0000000000020000-0x0000000000021000-memory.dmp

Filesize
4KB

Download
memory/2400-11-0x0000000076E80000-0x0000000077029000-memory.dmp

Filesize
1.7MB

Download
memory/2400-8-0x000000007707F000-0x0000000077080000-memory.dmp

Filesize
4KB

Download
memory/2400-9-0x000000007707F000-0x0000000077081000-memory.dmp

Filesize
8KB

Download
memory/2400-7-0x0000000077080000-0x0000000077081000-memory.dmp

Filesize
4KB

Download
memory/2400-6-0x0000000000130000-0x0000000000136000-memory.dmp

Filesize
24KB

Download