tinba | 9e6e9d8eabba4b886fa84170137e3a72c35cc7b360a5cba1a08cbc6b6f468a3c

Analysis

max time kernel
149s
max time network
94s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
12-10-2024 16:19

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General

Target

java.exe
Size

113KB
MD5

0411c0706f66b49aa6bef1528606ee31
SHA1

bdb8cb7a8aa380138ab9220075bb08b03a5edc28
SHA256

9e6e9d8eabba4b886fa84170137e3a72c35cc7b360a5cba1a08cbc6b6f468a3c
SHA512

3602a6a6503c363a1ff0185e3a8e5de51bfb58ebaf72903c141b68ea8d284553a2cd470439aab3af90a5bafec423845b37742a473055f12f0df2c8a0a4c1b53b
SSDEEP

1536:jiLOvRmmQegJfBbmAQ256/ZrwWhwqjhurmKFcbL86WV0E:jiyvRmDLs/ZrwWjjAqGcfzWH

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

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-1-5-21-3227495264-2217614367-4027411560-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\E905B947 = "C:\\Users\\Admin\\AppData\\Roaming\\E905B947\\bin.exe"	winver.exe

UPX packed file 1 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4684-0-0x0000000000400000-0x000000000041E000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1420	4100	WerFault.exe	86

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

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\	Explorer.EXE

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4100	winver.exe
4100	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 3 IoCs

pid	Process
4100	winver.exe
3436	Explorer.EXE
3436	Explorer.EXE

Suspicious use of UnmapMainImage 1 IoCs

pid	Process
3436	Explorer.EXE

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4684 wrote to memory of 4100	4684	java.exe	86
PID 4684 wrote to memory of 4100	4684	java.exe	86
PID 4684 wrote to memory of 4100	4684	java.exe	86
PID 4684 wrote to memory of 4100	4684	java.exe	86
PID 4100 wrote to memory of 3436	4100	winver.exe	54
PID 4100 wrote to memory of 2996	4100	winver.exe	49

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
PID:2996

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Modifies registry class
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of UnmapMainImage
PID:3436
- C:\Users\Admin\AppData\Local\Temp\java.exe
  "C:\Users\Admin\AppData\Local\Temp\java.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4684
- - 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:4100
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4100 -s 352
      4⤵
      Program crash
      PID:1420

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 428 -p 4100 -ip 4100
1⤵
PID:1368

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/2996-12-0x0000000000860000-0x0000000000866000-memory.dmp

Filesize
24KB

Download
memory/3436-16-0x00007FFE6B060000-0x00007FFE6B061000-memory.dmp

Filesize
4KB

Download
memory/3436-3-0x00000000007A0000-0x00000000007A6000-memory.dmp

Filesize
24KB

Download
memory/3436-2-0x00000000007A0000-0x00000000007A6000-memory.dmp

Filesize
24KB

Download
memory/3436-15-0x00007FFE6B080000-0x00007FFE6B081000-memory.dmp

Filesize
4KB

Download
memory/3436-5-0x00007FFE6AEED000-0x00007FFE6AEEE000-memory.dmp

Filesize
4KB

Download
memory/4100-6-0x00007FFE6AE50000-0x00007FFE6B045000-memory.dmp

Filesize
2.0MB

Download
memory/4100-10-0x0000000002B00000-0x0000000002B06000-memory.dmp

Filesize
24KB

Download
memory/4100-13-0x0000000002B00000-0x0000000002B06000-memory.dmp

Filesize
24KB

Download
memory/4684-7-0x0000000000400000-0x000000000041E000-memory.dmp

Filesize
120KB

Download
memory/4684-8-0x00000000022A0000-0x0000000002CA0000-memory.dmp

Filesize
10.0MB

Download
memory/4684-0-0x0000000000400000-0x000000000041E000-memory.dmp

Filesize
120KB

Download
memory/4684-4-0x00000000022A0000-0x0000000002CA0000-memory.dmp

Filesize
10.0MB

Download
memory/4684-1-0x00000000006B0000-0x00000000006B1000-memory.dmp

Filesize
4KB

Download