tinba | 3cdb3043f85f8466f2df2dc19b405571a0ba0f48d3f0f10813d79dfd07db3798

Analysis

max time kernel
118s
max time network
119s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
13-01-2025 09:54

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General

Target

3cdb3043f85f8466f2df2dc19b405571a0ba0f48d3f0f10813d79dfd07db3798N.exe
Size

45KB
MD5

78ee2e2c78c01117c8998d34320086a0
SHA1

156cd312f1245c72725c34783605f423e92b0d3d
SHA256

3cdb3043f85f8466f2df2dc19b405571a0ba0f48d3f0f10813d79dfd07db3798
SHA512

c787b48355cfa14691edfa0f566563f2b50c77ae3ee26522262dba4362bc672ffbfdd9c9059b7d2d4fe0e24e0c2a446b1f8485ae70006d79cc111c7acacd7c62
SSDEEP

768:EhP0kDE9N5dCA8J7VHXdrIniQaBTT+QQ+r1n4K8+C9TtIuCjaqUODvJVQ23:osWE9N5dFu53dsniQaB/xZ14n7zIF+qj

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-1-5-21-4177215427-74451935-3209572229-1000\Software\Microsoft\Windows\CurrentVersion\Run\037E4435 = "C:\\Users\\Admin\\AppData\\Roaming\\037E4435\\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/764-0-0x0000000000400000-0x000000000041D000-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	3cdb3043f85f8466f2df2dc19b405571a0ba0f48d3f0f10813d79dfd07db3798N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winver.exe

Suspicious behavior: EnumeratesProcesses 57 IoCs

pid	Process
2324	winver.exe
2324	winver.exe
2324	winver.exe
2324	winver.exe
2324	winver.exe
2324	winver.exe
2324	winver.exe
2324	winver.exe
2324	winver.exe
2324	winver.exe
2324	winver.exe
2324	winver.exe
2324	winver.exe
2324	winver.exe
2324	winver.exe
2324	winver.exe
2324	winver.exe
2324	winver.exe
2324	winver.exe
2324	winver.exe
2324	winver.exe
2324	winver.exe
2324	winver.exe
2324	winver.exe
2324	winver.exe
2324	winver.exe
2324	winver.exe
2324	winver.exe
2324	winver.exe
2324	winver.exe
2324	winver.exe
2324	winver.exe
2324	winver.exe
2324	winver.exe
2324	winver.exe
2324	winver.exe
2324	winver.exe
2324	winver.exe
2324	winver.exe
2324	winver.exe
2324	winver.exe
2324	winver.exe
2324	winver.exe
2324	winver.exe
2324	winver.exe
2324	winver.exe
2324	winver.exe
2324	winver.exe
2324	winver.exe
2324	winver.exe
2324	winver.exe
2324	winver.exe
2324	winver.exe
2324	winver.exe
2324	winver.exe
2324	winver.exe
2324	winver.exe

Suspicious use of FindShellTrayWindow 3 IoCs

pid	Process
2324	winver.exe
1196	Explorer.EXE
1196	Explorer.EXE

Suspicious use of SendNotifyMessage 2 IoCs

pid	Process
1196	Explorer.EXE
1196	Explorer.EXE

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 764 wrote to memory of 2324	764	3cdb3043f85f8466f2df2dc19b405571a0ba0f48d3f0f10813d79dfd07db3798N.exe	32
PID 764 wrote to memory of 2324	764	3cdb3043f85f8466f2df2dc19b405571a0ba0f48d3f0f10813d79dfd07db3798N.exe	32
PID 764 wrote to memory of 2324	764	3cdb3043f85f8466f2df2dc19b405571a0ba0f48d3f0f10813d79dfd07db3798N.exe	32
PID 764 wrote to memory of 2324	764	3cdb3043f85f8466f2df2dc19b405571a0ba0f48d3f0f10813d79dfd07db3798N.exe	32
PID 764 wrote to memory of 2324	764	3cdb3043f85f8466f2df2dc19b405571a0ba0f48d3f0f10813d79dfd07db3798N.exe	32
PID 2324 wrote to memory of 1196	2324	winver.exe	21
PID 2324 wrote to memory of 1112	2324	winver.exe	19
PID 2324 wrote to memory of 1172	2324	winver.exe	20
PID 2324 wrote to memory of 1196	2324	winver.exe	21
PID 2324 wrote to memory of 1308	2324	winver.exe	25

C:\Windows\system32\taskhost.exe
"taskhost.exe"
1⤵
PID:1112

C:\Windows\system32\Dwm.exe
"C:\Windows\system32\Dwm.exe"
1⤵
PID:1172

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
PID:1196
- C:\Users\Admin\AppData\Local\Temp\3cdb3043f85f8466f2df2dc19b405571a0ba0f48d3f0f10813d79dfd07db3798N.exe
  "C:\Users\Admin\AppData\Local\Temp\3cdb3043f85f8466f2df2dc19b405571a0ba0f48d3f0f10813d79dfd07db3798N.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:764
- - 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:2324

C:\Windows\system32\DllHost.exe
C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
1⤵
PID:1308

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/764-5-0x0000000001EB0000-0x00000000028B0000-memory.dmp

Filesize
10.0MB

Download
memory/764-1-0x0000000000020000-0x0000000000021000-memory.dmp

Filesize
4KB

Download
memory/764-0-0x0000000000400000-0x000000000041D000-memory.dmp

Filesize
116KB

Download
memory/764-13-0x0000000001EB0000-0x00000000028B0000-memory.dmp

Filesize
10.0MB

Download
memory/764-12-0x0000000000400000-0x000000000041D000-memory.dmp

Filesize
116KB

Download
memory/1112-24-0x0000000000210000-0x0000000000216000-memory.dmp

Filesize
24KB

Download
memory/1112-25-0x00000000774D1000-0x00000000774D2000-memory.dmp

Filesize
4KB

Download
memory/1172-21-0x00000000001C0000-0x00000000001C6000-memory.dmp

Filesize
24KB

Download
memory/1172-27-0x00000000001C0000-0x00000000001C6000-memory.dmp

Filesize
24KB

Download
memory/1196-23-0x0000000002470000-0x0000000002476000-memory.dmp

Filesize
24KB

Download
memory/1196-10-0x00000000774D1000-0x00000000774D2000-memory.dmp

Filesize
4KB

Download
memory/1196-2-0x00000000024C0000-0x00000000024C6000-memory.dmp

Filesize
24KB

Download
memory/1196-4-0x00000000024C0000-0x00000000024C6000-memory.dmp

Filesize
24KB

Download
memory/1196-3-0x00000000024C0000-0x00000000024C6000-memory.dmp

Filesize
24KB

Download
memory/1196-26-0x0000000002470000-0x0000000002476000-memory.dmp

Filesize
24KB

Download
memory/1308-32-0x00000000774D1000-0x00000000774D2000-memory.dmp

Filesize
4KB

Download
memory/1308-33-0x0000000001D80000-0x0000000001D86000-memory.dmp

Filesize
24KB

Download
memory/2324-6-0x0000000000120000-0x0000000000126000-memory.dmp

Filesize
24KB

Download
memory/2324-31-0x0000000000120000-0x0000000000126000-memory.dmp

Filesize
24KB

Download
memory/2324-11-0x0000000077480000-0x0000000077629000-memory.dmp

Filesize
1.7MB

Download
memory/2324-7-0x0000000077680000-0x0000000077681000-memory.dmp

Filesize
4KB

Download
memory/2324-8-0x000000007767F000-0x0000000077680000-memory.dmp

Filesize
4KB

Download
memory/2324-9-0x000000007767F000-0x0000000077681000-memory.dmp

Filesize
8KB

Download
memory/2324-38-0x0000000000220000-0x0000000000221000-memory.dmp

Filesize
4KB

Download