tinba | 339e8f0854d2c3cc29e4c21bef4d104b49d3e9f461c5448ff669d8ccb9424b13

Analysis

max time kernel
118s
max time network
100s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
24/08/2024, 00:28

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General

Target

f2d2f7b958d8affc9fe31891860e22e0N.exe
Size

45KB
MD5

f2d2f7b958d8affc9fe31891860e22e0
SHA1

88c5e5e468cc81781acc79058cb6d572362df964
SHA256

339e8f0854d2c3cc29e4c21bef4d104b49d3e9f461c5448ff669d8ccb9424b13
SHA512

213735de8e0ec07a2a19ed0f53b6ca975c074d9ccfd2344c509dc8a18b25ad3a64376c53ee2dc8dc971ec6536cd636b9f695c67d77ac2c2c435813d4e279d8dd
SSDEEP

768:bhP0kDE9N5dCA8J7VHXdrIniQaBTT+QQ+r1n4K8+C9TtIuCjaqUODvJVQ2f:dsWE9N5dFu53dsniQaB/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
behavioral2/memory/3116-0-0x0000000000400000-0x000000000041D000-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-1-5-21-4182098368-2521458979-3782681353-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\44E22F38 = "C:\\Users\\Admin\\AppData\\Roaming\\44E22F38\\bin.exe"	winver.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
3124	1792	WerFault.exe	85

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	f2d2f7b958d8affc9fe31891860e22e0N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winver.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1792	winver.exe
1792	winver.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeShutdownPrivilege	3436	Explorer.EXE
Token: SeCreatePagefilePrivilege	3436	Explorer.EXE

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
1792	winver.exe

Suspicious use of UnmapMainImage 1 IoCs

pid	Process
3436	Explorer.EXE

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 3116 wrote to memory of 1792	3116	f2d2f7b958d8affc9fe31891860e22e0N.exe	85
PID 3116 wrote to memory of 1792	3116	f2d2f7b958d8affc9fe31891860e22e0N.exe	85
PID 3116 wrote to memory of 1792	3116	f2d2f7b958d8affc9fe31891860e22e0N.exe	85
PID 3116 wrote to memory of 1792	3116	f2d2f7b958d8affc9fe31891860e22e0N.exe	85
PID 1792 wrote to memory of 3436	1792	winver.exe	56
PID 1792 wrote to memory of 2968	1792	winver.exe	50

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
PID:2968

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of UnmapMainImage
PID:3436
- C:\Users\Admin\AppData\Local\Temp\f2d2f7b958d8affc9fe31891860e22e0N.exe
  "C:\Users\Admin\AppData\Local\Temp\f2d2f7b958d8affc9fe31891860e22e0N.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3116
- - 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:1792
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1792 -s 352
      4⤵
      Program crash
      PID:3124

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1792 -ip 1792
1⤵
PID:2656

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/1792-16-0x0000000000C10000-0x0000000000C16000-memory.dmp

Filesize
24KB

Download
memory/1792-6-0x0000000077EC2000-0x0000000077EC3000-memory.dmp

Filesize
4KB

Download
memory/1792-5-0x0000000000C10000-0x0000000000C16000-memory.dmp

Filesize
24KB

Download
memory/1792-8-0x00007FFE75010000-0x00007FFE75205000-memory.dmp

Filesize
2.0MB

Download
memory/2968-18-0x00007FFE75230000-0x00007FFE75231000-memory.dmp

Filesize
4KB

Download
memory/2968-15-0x0000000000B70000-0x0000000000B76000-memory.dmp

Filesize
24KB

Download
memory/3116-11-0x00000000022A0000-0x0000000002CA0000-memory.dmp

Filesize
10.0MB

Download
memory/3116-1-0x0000000002160000-0x0000000002161000-memory.dmp

Filesize
4KB

Download
memory/3116-0-0x0000000000400000-0x000000000041D000-memory.dmp

Filesize
116KB

Download
memory/3116-4-0x00000000022A0000-0x0000000002CA0000-memory.dmp

Filesize
10.0MB

Download
memory/3116-10-0x0000000000400000-0x000000000041D000-memory.dmp

Filesize
116KB

Download
memory/3436-3-0x00000000011F0000-0x00000000011F6000-memory.dmp

Filesize
24KB

Download
memory/3436-9-0x00007FFE75240000-0x00007FFE75241000-memory.dmp

Filesize
4KB

Download
memory/3436-7-0x00007FFE750AD000-0x00007FFE750AE000-memory.dmp

Filesize
4KB

Download
memory/3436-2-0x00000000011F0000-0x00000000011F6000-memory.dmp

Filesize
24KB

Download