tinba | f188787c7e31b66bd9efd5b455cc802f825e3e73b15a48135e73189c65207543

Analysis

max time kernel
148s
max time network
149s
platform
windows7_x64
resource
win7-20241023-en
resource tags

arch:x64arch:x86image:win7-20241023-enlocale:en-usos:windows7-x64system
submitted
09-12-2024 04:31

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General

Target

f188787c7e31b66bd9efd5b455cc802f825e3e73b15a48135e73189c65207543.exe
Size

225KB
MD5

9216a182973df6197dcb2af871e415a8
SHA1

37b06f7689c474bb69cd59ff87855d77a3b09abb
SHA256

f188787c7e31b66bd9efd5b455cc802f825e3e73b15a48135e73189c65207543
SHA512

647356e89e3137ee82ee7812a20817dd8a352261c9f3dfb39f71a0065d045e737d7b4212c56821a3da6415bc2f64ed00d3b6f2e3fd60203d3d9761668ef67599
SSDEEP

6144:nA2P27yTAnKGw0hjFhSR/W11yAJ9v0pMtRCpY0:nATuTAnKGwUAW3ycQqgN

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-1-5-21-1163522206-1469769407-485553996-1000\Software\Microsoft\Windows\CurrentVersion\Run\B1EA3ED2 = "C:\\Users\\Admin\\AppData\\Roaming\\B1EA3ED2\\bin.exe"	winver.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

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	f188787c7e31b66bd9efd5b455cc802f825e3e73b15a48135e73189c65207543.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winver.exe

Suspicious behavior: EnumeratesProcesses 61 IoCs

pid	Process
2460	winver.exe
2460	winver.exe
2460	winver.exe
2460	winver.exe
2460	winver.exe
2460	winver.exe
2460	winver.exe
2460	winver.exe
2460	winver.exe
2460	winver.exe
2460	winver.exe
2460	winver.exe
2460	winver.exe
2460	winver.exe
2460	winver.exe
2460	winver.exe
2460	winver.exe
2460	winver.exe
2460	winver.exe
2460	winver.exe
2460	winver.exe
2460	winver.exe
2460	winver.exe
2460	winver.exe
2460	winver.exe
2460	winver.exe
2460	winver.exe
2460	winver.exe
2460	winver.exe
2460	winver.exe
2460	winver.exe
2460	winver.exe
2460	winver.exe
2460	winver.exe
2460	winver.exe
2460	winver.exe
2460	winver.exe
2460	winver.exe
2460	winver.exe
2460	winver.exe
2460	winver.exe
2460	winver.exe
2460	winver.exe
2460	winver.exe
2460	winver.exe
2460	winver.exe
2460	winver.exe
2460	winver.exe
2460	winver.exe
2460	winver.exe
2460	winver.exe
2460	winver.exe
2460	winver.exe
2460	winver.exe
2460	winver.exe
2460	winver.exe
2460	winver.exe
2460	winver.exe
2460	winver.exe
2460	winver.exe
2460	winver.exe

Suspicious use of FindShellTrayWindow 3 IoCs

pid	Process
2460	winver.exe
1100	Explorer.EXE
1100	Explorer.EXE

Suspicious use of SendNotifyMessage 2 IoCs

pid	Process
1100	Explorer.EXE
1100	Explorer.EXE

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 2100 wrote to memory of 2460	2100	f188787c7e31b66bd9efd5b455cc802f825e3e73b15a48135e73189c65207543.exe	28
PID 2100 wrote to memory of 2460	2100	f188787c7e31b66bd9efd5b455cc802f825e3e73b15a48135e73189c65207543.exe	28
PID 2100 wrote to memory of 2460	2100	f188787c7e31b66bd9efd5b455cc802f825e3e73b15a48135e73189c65207543.exe	28
PID 2100 wrote to memory of 2460	2100	f188787c7e31b66bd9efd5b455cc802f825e3e73b15a48135e73189c65207543.exe	28
PID 2100 wrote to memory of 2460	2100	f188787c7e31b66bd9efd5b455cc802f825e3e73b15a48135e73189c65207543.exe	28
PID 2460 wrote to memory of 1100	2460	winver.exe	20
PID 2460 wrote to memory of 1028	2460	winver.exe	17
PID 2460 wrote to memory of 1044	2460	winver.exe	18
PID 2460 wrote to memory of 1100	2460	winver.exe	20
PID 2460 wrote to memory of 1324	2460	winver.exe	23
PID 2460 wrote to memory of 2100	2460	winver.exe	27

C:\Windows\system32\Dwm.exe
"C:\Windows\system32\Dwm.exe"
1⤵
PID:1028

C:\Windows\system32\taskhost.exe
"taskhost.exe"
1⤵
PID:1044

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
PID:1100
- C:\Users\Admin\AppData\Local\Temp\f188787c7e31b66bd9efd5b455cc802f825e3e73b15a48135e73189c65207543.exe
  "C:\Users\Admin\AppData\Local\Temp\f188787c7e31b66bd9efd5b455cc802f825e3e73b15a48135e73189c65207543.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2100
- - 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:2460

C:\Windows\system32\DllHost.exe
C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
1⤵
PID:1324

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 Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/1028-26-0x00000000002B0000-0x00000000002B6000-memory.dmp

Filesize
24KB

Download
memory/1028-9-0x00000000002B0000-0x00000000002B6000-memory.dmp

Filesize
24KB

Download
memory/1044-12-0x0000000002090000-0x0000000002096000-memory.dmp

Filesize
24KB

Download
memory/1044-28-0x0000000002090000-0x0000000002096000-memory.dmp

Filesize
24KB

Download
memory/1100-1-0x00000000025A0000-0x00000000025A6000-memory.dmp

Filesize
24KB

Download
memory/1100-15-0x00000000025B0000-0x00000000025B6000-memory.dmp

Filesize
24KB

Download
memory/1100-6-0x00000000025A0000-0x00000000025A6000-memory.dmp

Filesize
24KB

Download
memory/1100-3-0x00000000025A0000-0x00000000025A6000-memory.dmp

Filesize
24KB

Download
memory/1100-27-0x00000000025B0000-0x00000000025B6000-memory.dmp

Filesize
24KB

Download
memory/1324-18-0x0000000001C10000-0x0000000001C16000-memory.dmp

Filesize
24KB

Download
memory/1324-29-0x0000000001C10000-0x0000000001C16000-memory.dmp

Filesize
24KB

Download
memory/2100-25-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/2460-23-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/2460-4-0x00000000000B0000-0x00000000000B6000-memory.dmp

Filesize
24KB

Download
memory/2460-31-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download