tinba | f73965b3f1cab08f41a1911ec410c1a0811550a039eaad62363a926ba0f5692f

Analysis

max time kernel
119s
max time network
122s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
03-11-2024 00:11

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General

Target

f73965b3f1cab08f41a1911ec410c1a0811550a039eaad62363a926ba0f5692fN.exe
Size

59KB
MD5

929fe1ec88ab073d47bb0d7cdf44e3b0
SHA1

a67f97910e02b203275eb5d5d64623b144061b16
SHA256

f73965b3f1cab08f41a1911ec410c1a0811550a039eaad62363a926ba0f5692f
SHA512

cffb774a8c1c483f6f8beed0a9e128e7c674616d6203477d31ca1457ec5d6c722de6cf1e8e7b7ea6eb9f2d65f3463539120f25a4dac2c588ec6eb72a584d99c1
SSDEEP

768:T+6p+OMlgGMCWhfDzU7f7JDgiFP7xI57+sByZ+XsfXpwtGc9J1:T+mFM2HXKZgiFP7xIksu+XM5O9J1

Score

10^/10

tinba banker discovery persistence trojan

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-1-5-21-1488793075-819845221-1497111674-1000\Software\Microsoft\Windows\CurrentVersion\Run\A3CBBB08 = "C:\\Users\\Admin\\AppData\\Roaming\\A3CBBB08\\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	f73965b3f1cab08f41a1911ec410c1a0811550a039eaad62363a926ba0f5692fN.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winver.exe

Suspicious behavior: EnumeratesProcesses 57 IoCs

pid	Process
2684	winver.exe
2684	winver.exe
2684	winver.exe
2684	winver.exe
2684	winver.exe
2684	winver.exe
2684	winver.exe
2684	winver.exe
2684	winver.exe
2684	winver.exe
2684	winver.exe
2684	winver.exe
2684	winver.exe
2684	winver.exe
2684	winver.exe
2684	winver.exe
2684	winver.exe
2684	winver.exe
2684	winver.exe
2684	winver.exe
2684	winver.exe
2684	winver.exe
2684	winver.exe
2684	winver.exe
2684	winver.exe
2684	winver.exe
2684	winver.exe
2684	winver.exe
2684	winver.exe
2684	winver.exe
2684	winver.exe
2684	winver.exe
2684	winver.exe
2684	winver.exe
2684	winver.exe
2684	winver.exe
2684	winver.exe
2684	winver.exe
2684	winver.exe
2684	winver.exe
2684	winver.exe
2684	winver.exe
2684	winver.exe
2684	winver.exe
2684	winver.exe
2684	winver.exe
2684	winver.exe
2684	winver.exe
2684	winver.exe
2684	winver.exe
2684	winver.exe
2684	winver.exe
2684	winver.exe
2684	winver.exe
2684	winver.exe
2684	winver.exe
2684	winver.exe

Suspicious use of FindShellTrayWindow 3 IoCs

pid	Process
2684	winver.exe
1256	Explorer.EXE
1256	Explorer.EXE

Suspicious use of SendNotifyMessage 2 IoCs

pid	Process
1256	Explorer.EXE
1256	Explorer.EXE

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 2672 wrote to memory of 2684	2672	f73965b3f1cab08f41a1911ec410c1a0811550a039eaad62363a926ba0f5692fN.exe	31
PID 2672 wrote to memory of 2684	2672	f73965b3f1cab08f41a1911ec410c1a0811550a039eaad62363a926ba0f5692fN.exe	31
PID 2672 wrote to memory of 2684	2672	f73965b3f1cab08f41a1911ec410c1a0811550a039eaad62363a926ba0f5692fN.exe	31
PID 2672 wrote to memory of 2684	2672	f73965b3f1cab08f41a1911ec410c1a0811550a039eaad62363a926ba0f5692fN.exe	31
PID 2672 wrote to memory of 2684	2672	f73965b3f1cab08f41a1911ec410c1a0811550a039eaad62363a926ba0f5692fN.exe	31
PID 2684 wrote to memory of 1256	2684	winver.exe	21
PID 2684 wrote to memory of 1120	2684	winver.exe	19
PID 2684 wrote to memory of 1196	2684	winver.exe	20
PID 2684 wrote to memory of 1256	2684	winver.exe	21
PID 2684 wrote to memory of 860	2684	winver.exe	25

C:\Windows\system32\taskhost.exe
"taskhost.exe"
1⤵
PID:1120

C:\Windows\system32\Dwm.exe
"C:\Windows\system32\Dwm.exe"
1⤵
PID:1196

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
PID:1256
- C:\Users\Admin\AppData\Local\Temp\f73965b3f1cab08f41a1911ec410c1a0811550a039eaad62363a926ba0f5692fN.exe
  "C:\Users\Admin\AppData\Local\Temp\f73965b3f1cab08f41a1911ec410c1a0811550a039eaad62363a926ba0f5692fN.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2672
- - 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:2684

C:\Windows\system32\DllHost.exe
C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
1⤵
PID:860

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/860-26-0x0000000001E70000-0x0000000001E76000-memory.dmp

Filesize
24KB

Download
memory/860-31-0x0000000077A71000-0x0000000077A72000-memory.dmp

Filesize
4KB

Download
memory/860-30-0x0000000001E70000-0x0000000001E76000-memory.dmp

Filesize
24KB

Download
memory/1120-27-0x0000000001F90000-0x0000000001F96000-memory.dmp

Filesize
24KB

Download
memory/1120-28-0x0000000077A71000-0x0000000077A72000-memory.dmp

Filesize
4KB

Download
memory/1196-20-0x00000000001B0000-0x00000000001B6000-memory.dmp

Filesize
24KB

Download
memory/1196-29-0x00000000001B0000-0x00000000001B6000-memory.dmp

Filesize
24KB

Download
memory/1256-9-0x0000000077A71000-0x0000000077A72000-memory.dmp

Filesize
4KB

Download
memory/1256-23-0x0000000002070000-0x0000000002076000-memory.dmp

Filesize
24KB

Download
memory/1256-32-0x0000000002070000-0x0000000002076000-memory.dmp

Filesize
24KB

Download
memory/1256-1-0x00000000029D0000-0x00000000029D6000-memory.dmp

Filesize
24KB

Download
memory/1256-2-0x00000000029D0000-0x00000000029D6000-memory.dmp

Filesize
24KB

Download
memory/1256-3-0x00000000029D0000-0x00000000029D6000-memory.dmp

Filesize
24KB

Download
memory/2672-12-0x0000000001D80000-0x0000000002780000-memory.dmp

Filesize
10.0MB

Download
memory/2672-0-0x0000000000020000-0x0000000000021000-memory.dmp

Filesize
4KB

Download
memory/2672-4-0x0000000001D80000-0x0000000002780000-memory.dmp

Filesize
10.0MB

Download
memory/2672-11-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2684-10-0x0000000077A20000-0x0000000077BC9000-memory.dmp

Filesize
1.7MB

Download
memory/2684-8-0x0000000077C1F000-0x0000000077C21000-memory.dmp

Filesize
8KB

Download
memory/2684-7-0x0000000077C1F000-0x0000000077C20000-memory.dmp

Filesize
4KB

Download
memory/2684-5-0x0000000000130000-0x0000000000136000-memory.dmp

Filesize
24KB

Download
memory/2684-6-0x0000000077C20000-0x0000000077C21000-memory.dmp

Filesize
4KB

Download
memory/2684-33-0x0000000000130000-0x0000000000136000-memory.dmp

Filesize
24KB

Download
memory/2684-38-0x00000000001C0000-0x00000000001C1000-memory.dmp

Filesize
4KB

Download