tinba | b1f555c7947bb97f054e6f00d78474daa4c25d848c52ce9376ed455fb9b20c27

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
18/09/2024, 16:58

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General

Target

b1f555c7947bb97f054e6f00d78474daa4c25d848c52ce9376ed455fb9b20c27N.exe
Size

45KB
MD5

a080ef621b827046e9fed0c2d6bf5a80
SHA1

d27db7b1d1aa8fd5e7d36e84e1ea1cd1b10ff927
SHA256

b1f555c7947bb97f054e6f00d78474daa4c25d848c52ce9376ed455fb9b20c27
SHA512

34052d1c962c2ef4ad84725297b666e99e8c18b8e7a17ddad495fe3315d93be22b3176f2f424e6e2b6b8fcd1e613fd1422bbcd6a95f4ba0c676dca043afecd40
SSDEEP

768:4hP0kDE9N5dCA8J7VHXdrIniQaBTT+QQ+r1n4K8+C9TtIuCjaqUODvJVQ2f:EsWE9N5dFu53dsniQaB/xZ14n7zIF+qr

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

UPX packed file 1 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral1/memory/1804-0-0x0000000000400000-0x000000000041D000-memory.dmp	upx

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-1-5-21-3063565911-2056067323-3330884624-1000\Software\Microsoft\Windows\CurrentVersion\Run\4EEEB43E = "C:\\Users\\Admin\\AppData\\Roaming\\4EEEB43E\\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	winver.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	b1f555c7947bb97f054e6f00d78474daa4c25d848c52ce9376ed455fb9b20c27N.exe

Suspicious behavior: EnumeratesProcesses 57 IoCs

pid	Process
1584	winver.exe
1584	winver.exe
1584	winver.exe
1584	winver.exe
1584	winver.exe
1584	winver.exe
1584	winver.exe
1584	winver.exe
1584	winver.exe
1584	winver.exe
1584	winver.exe
1584	winver.exe
1584	winver.exe
1584	winver.exe
1584	winver.exe
1584	winver.exe
1584	winver.exe
1584	winver.exe
1584	winver.exe
1584	winver.exe
1584	winver.exe
1584	winver.exe
1584	winver.exe
1584	winver.exe
1584	winver.exe
1584	winver.exe
1584	winver.exe
1584	winver.exe
1584	winver.exe
1584	winver.exe
1584	winver.exe
1584	winver.exe
1584	winver.exe
1584	winver.exe
1584	winver.exe
1584	winver.exe
1584	winver.exe
1584	winver.exe
1584	winver.exe
1584	winver.exe
1584	winver.exe
1584	winver.exe
1584	winver.exe
1584	winver.exe
1584	winver.exe
1584	winver.exe
1584	winver.exe
1584	winver.exe
1584	winver.exe
1584	winver.exe
1584	winver.exe
1584	winver.exe
1584	winver.exe
1584	winver.exe
1584	winver.exe
1584	winver.exe
1584	winver.exe

Suspicious use of FindShellTrayWindow 3 IoCs

pid	Process
1584	winver.exe
1188	Explorer.EXE
1188	Explorer.EXE

Suspicious use of SendNotifyMessage 2 IoCs

pid	Process
1188	Explorer.EXE
1188	Explorer.EXE

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 1804 wrote to memory of 1584	1804	b1f555c7947bb97f054e6f00d78474daa4c25d848c52ce9376ed455fb9b20c27N.exe	31
PID 1804 wrote to memory of 1584	1804	b1f555c7947bb97f054e6f00d78474daa4c25d848c52ce9376ed455fb9b20c27N.exe	31
PID 1804 wrote to memory of 1584	1804	b1f555c7947bb97f054e6f00d78474daa4c25d848c52ce9376ed455fb9b20c27N.exe	31
PID 1804 wrote to memory of 1584	1804	b1f555c7947bb97f054e6f00d78474daa4c25d848c52ce9376ed455fb9b20c27N.exe	31
PID 1804 wrote to memory of 1584	1804	b1f555c7947bb97f054e6f00d78474daa4c25d848c52ce9376ed455fb9b20c27N.exe	31
PID 1584 wrote to memory of 1188	1584	winver.exe	21
PID 1584 wrote to memory of 1100	1584	winver.exe	19
PID 1584 wrote to memory of 1160	1584	winver.exe	20
PID 1584 wrote to memory of 1188	1584	winver.exe	21
PID 1584 wrote to memory of 1440	1584	winver.exe	23

C:\Windows\system32\taskhost.exe
"taskhost.exe"
1⤵
PID:1100

C:\Windows\system32\Dwm.exe
"C:\Windows\system32\Dwm.exe"
1⤵
PID:1160

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
PID:1188
- C:\Users\Admin\AppData\Local\Temp\b1f555c7947bb97f054e6f00d78474daa4c25d848c52ce9376ed455fb9b20c27N.exe
  "C:\Users\Admin\AppData\Local\Temp\b1f555c7947bb97f054e6f00d78474daa4c25d848c52ce9376ed455fb9b20c27N.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1804
- - 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:1584

C:\Windows\system32\DllHost.exe
C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
1⤵
PID:1440

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/1100-38-0x0000000001ED0000-0x0000000001ED6000-memory.dmp

Filesize
24KB

Download
memory/1100-28-0x00000000778F1000-0x00000000778F2000-memory.dmp

Filesize
4KB

Download
memory/1100-26-0x00000000778F1000-0x00000000778F2000-memory.dmp

Filesize
4KB

Download
memory/1100-27-0x0000000001ED0000-0x0000000001ED6000-memory.dmp

Filesize
24KB

Download
memory/1160-29-0x00000000778F1000-0x00000000778F2000-memory.dmp

Filesize
4KB

Download
memory/1160-21-0x0000000000130000-0x0000000000136000-memory.dmp

Filesize
24KB

Download
memory/1160-33-0x0000000000130000-0x0000000000136000-memory.dmp

Filesize
24KB

Download
memory/1188-3-0x0000000002AD0000-0x0000000002AD6000-memory.dmp

Filesize
24KB

Download
memory/1188-32-0x0000000002A80000-0x0000000002A86000-memory.dmp

Filesize
24KB

Download
memory/1188-4-0x0000000002AD0000-0x0000000002AD6000-memory.dmp

Filesize
24KB

Download
memory/1188-23-0x0000000002A80000-0x0000000002A86000-memory.dmp

Filesize
24KB

Download
memory/1188-10-0x00000000778F1000-0x00000000778F2000-memory.dmp

Filesize
4KB

Download
memory/1188-2-0x0000000002AD0000-0x0000000002AD6000-memory.dmp

Filesize
24KB

Download
memory/1440-31-0x00000000778F1000-0x00000000778F2000-memory.dmp

Filesize
4KB

Download
memory/1440-25-0x0000000001D90000-0x0000000001D96000-memory.dmp

Filesize
24KB

Download
memory/1440-30-0x0000000001D90000-0x0000000001D96000-memory.dmp

Filesize
24KB

Download
memory/1584-6-0x00000000000B0000-0x00000000000B6000-memory.dmp

Filesize
24KB

Download
memory/1584-11-0x00000000778A0000-0x0000000077A49000-memory.dmp

Filesize
1.7MB

Download
memory/1584-9-0x0000000077A9F000-0x0000000077AA1000-memory.dmp

Filesize
8KB

Download
memory/1584-8-0x0000000077A9F000-0x0000000077AA0000-memory.dmp

Filesize
4KB

Download
memory/1584-7-0x0000000077AA0000-0x0000000077AA1000-memory.dmp

Filesize
4KB

Download
memory/1584-34-0x00000000000B0000-0x00000000000B6000-memory.dmp

Filesize
24KB

Download
memory/1804-13-0x0000000001C30000-0x0000000002630000-memory.dmp

Filesize
10.0MB

Download
memory/1804-12-0x0000000000400000-0x000000000041D000-memory.dmp

Filesize
116KB

Download
memory/1804-0-0x0000000000400000-0x000000000041D000-memory.dmp

Filesize
116KB

Download
memory/1804-5-0x0000000001C30000-0x0000000002630000-memory.dmp

Filesize
10.0MB

Download
memory/1804-1-0x0000000000020000-0x0000000000021000-memory.dmp

Filesize
4KB

Download