tinba | a7e32f12751cf6489f356c3df3d924b076b3a9955405ff52c191bfa47e55b3f2

Analysis

max time kernel
118s
max time network
120s
platform
windows7_x64
resource
win7-20240705-en
resource tags

arch:x64arch:x86image:win7-20240705-enlocale:en-usos:windows7-x64system
submitted
15/08/2024, 20:19

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General

Target

71809ca1f33ece8bb1be37750cea9530N.exe
Size

98KB
MD5

71809ca1f33ece8bb1be37750cea9530
SHA1

b0f54177534c5ac2ce9c037c2f0146626ad4e4fd
SHA256

a7e32f12751cf6489f356c3df3d924b076b3a9955405ff52c191bfa47e55b3f2
SHA512

478844c1a02afd4bb3e5ebdbac9b5aa2ff56bc9d586699d4e603fd32d7b0119b1554dbedc92c487e582d41aa256da89df48c4478286d6bb3e7bb7e7fed91e846
SSDEEP

768:z+6p+OMlgGMCWhfDzU7f7JDgi9I57+sByZ+XsfXpwtG9ipelU9JF:z+mFM2HXKZgi9Iksu+XM57ipeq9JF

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

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-1-5-21-1385883288-3042840365-2734249351-1000\Software\Microsoft\Windows\CurrentVersion\Run\72683B9E = "C:\\Users\\Admin\\AppData\\Roaming\\72683B9E\\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	71809ca1f33ece8bb1be37750cea9530N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winver.exe

Suspicious behavior: EnumeratesProcesses 57 IoCs

pid	Process
2900	winver.exe
2900	winver.exe
2900	winver.exe
2900	winver.exe
2900	winver.exe
2900	winver.exe
2900	winver.exe
2900	winver.exe
2900	winver.exe
2900	winver.exe
2900	winver.exe
2900	winver.exe
2900	winver.exe
2900	winver.exe
2900	winver.exe
2900	winver.exe
2900	winver.exe
2900	winver.exe
2900	winver.exe
2900	winver.exe
2900	winver.exe
2900	winver.exe
2900	winver.exe
2900	winver.exe
2900	winver.exe
2900	winver.exe
2900	winver.exe
2900	winver.exe
2900	winver.exe
2900	winver.exe
2900	winver.exe
2900	winver.exe
2900	winver.exe
2900	winver.exe
2900	winver.exe
2900	winver.exe
2900	winver.exe
2900	winver.exe
2900	winver.exe
2900	winver.exe
2900	winver.exe
2900	winver.exe
2900	winver.exe
2900	winver.exe
2900	winver.exe
2900	winver.exe
2900	winver.exe
2900	winver.exe
2900	winver.exe
2900	winver.exe
2900	winver.exe
2900	winver.exe
2900	winver.exe
2900	winver.exe
2900	winver.exe
2900	winver.exe
2900	winver.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
2900	winver.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 2336 wrote to memory of 2900	2336	71809ca1f33ece8bb1be37750cea9530N.exe	31
PID 2336 wrote to memory of 2900	2336	71809ca1f33ece8bb1be37750cea9530N.exe	31
PID 2336 wrote to memory of 2900	2336	71809ca1f33ece8bb1be37750cea9530N.exe	31
PID 2336 wrote to memory of 2900	2336	71809ca1f33ece8bb1be37750cea9530N.exe	31
PID 2336 wrote to memory of 2900	2336	71809ca1f33ece8bb1be37750cea9530N.exe	31
PID 2900 wrote to memory of 1232	2900	winver.exe	21
PID 2900 wrote to memory of 1124	2900	winver.exe	19
PID 2900 wrote to memory of 1180	2900	winver.exe	20
PID 2900 wrote to memory of 1232	2900	winver.exe	21
PID 2900 wrote to memory of 1668	2900	winver.exe	25

C:\Windows\system32\taskhost.exe
"taskhost.exe"
1⤵
PID:1124

C:\Windows\system32\Dwm.exe
"C:\Windows\system32\Dwm.exe"
1⤵
PID:1180

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:1232
- C:\Users\Admin\AppData\Local\Temp\71809ca1f33ece8bb1be37750cea9530N.exe
  "C:\Users\Admin\AppData\Local\Temp\71809ca1f33ece8bb1be37750cea9530N.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2336
- - 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:2900

C:\Windows\system32\DllHost.exe
C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
1⤵
PID:1668

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/1124-26-0x0000000077181000-0x0000000077182000-memory.dmp

Filesize
4KB

Download
memory/1124-25-0x0000000002060000-0x0000000002066000-memory.dmp

Filesize
24KB

Download
memory/1180-27-0x0000000000130000-0x0000000000136000-memory.dmp

Filesize
24KB

Download
memory/1180-19-0x0000000000130000-0x0000000000136000-memory.dmp

Filesize
24KB

Download
memory/1232-3-0x0000000002520000-0x0000000002526000-memory.dmp

Filesize
24KB

Download
memory/1232-9-0x0000000077181000-0x0000000077182000-memory.dmp

Filesize
4KB

Download
memory/1232-24-0x00000000024D0000-0x00000000024D6000-memory.dmp

Filesize
24KB

Download
memory/1232-1-0x0000000002520000-0x0000000002526000-memory.dmp

Filesize
24KB

Download
memory/1232-2-0x0000000002520000-0x0000000002526000-memory.dmp

Filesize
24KB

Download
memory/1232-21-0x00000000024D0000-0x00000000024D6000-memory.dmp

Filesize
24KB

Download
memory/1668-29-0x0000000077181000-0x0000000077182000-memory.dmp

Filesize
4KB

Download
memory/1668-23-0x0000000001E30000-0x0000000001E36000-memory.dmp

Filesize
24KB

Download
memory/1668-28-0x0000000001E30000-0x0000000001E36000-memory.dmp

Filesize
24KB

Download
memory/2336-4-0x0000000001F80000-0x0000000002980000-memory.dmp

Filesize
10.0MB

Download
memory/2336-12-0x0000000001F80000-0x0000000002980000-memory.dmp

Filesize
10.0MB

Download
memory/2336-11-0x0000000000400000-0x000000000041A000-memory.dmp

Filesize
104KB

Download
memory/2336-0-0x0000000000020000-0x0000000000021000-memory.dmp

Filesize
4KB

Download
memory/2900-10-0x0000000077130000-0x00000000772D9000-memory.dmp

Filesize
1.7MB

Download
memory/2900-5-0x0000000000160000-0x0000000000166000-memory.dmp

Filesize
24KB

Download
memory/2900-6-0x0000000077330000-0x0000000077331000-memory.dmp

Filesize
4KB

Download
memory/2900-7-0x000000007732F000-0x0000000077330000-memory.dmp

Filesize
4KB

Download
memory/2900-8-0x000000007732F000-0x0000000077331000-memory.dmp

Filesize
8KB

Download
memory/2900-30-0x0000000000160000-0x0000000000166000-memory.dmp

Filesize
24KB

Download