tinba | 935f0cbbce8cec3ac9c4fa530761d81c9f6e5d33cd5c6c6c447778dd80023990

Analysis

max time kernel
110s
max time network
97s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
08-01-2025 22:31

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General

Target

935f0cbbce8cec3ac9c4fa530761d81c9f6e5d33cd5c6c6c447778dd80023990.exe
Size

45KB
MD5

2aaaeea506136d75f432d7001b951e7e
SHA1

8be38f0546137e521d7fce421d8c935aba991cc6
SHA256

935f0cbbce8cec3ac9c4fa530761d81c9f6e5d33cd5c6c6c447778dd80023990
SHA512

426b292e19dab6cc90713dc43b4dda453193797adddd299bbd0bc2c2bc6647f08ea04b3bdaf62e4aa4379fc050b1f0fde57fcf4419b9762bebe6bebed1620c7a
SSDEEP

768:lhP0kDE9N5dCA8J7VHXdrIniQaBTT+QQ+r1n4K8+C9TtIuCjaqUODvJVQ23:3sWE9N5dFu53dsniQaB/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-1-5-21-2045521122-590294423-3465680274-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\D84662B3 = "C:\\Users\\Admin\\AppData\\Roaming\\D84662B3\\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/2420-0-0x0000000000400000-0x000000000041D000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
3436	4000	WerFault.exe	84

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	935f0cbbce8cec3ac9c4fa530761d81c9f6e5d33cd5c6c6c447778dd80023990.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winver.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4000	winver.exe
4000	winver.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeShutdownPrivilege	3444	Explorer.EXE
Token: SeCreatePagefilePrivilege	3444	Explorer.EXE

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
4000	winver.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2420 wrote to memory of 4000	2420	935f0cbbce8cec3ac9c4fa530761d81c9f6e5d33cd5c6c6c447778dd80023990.exe	84
PID 2420 wrote to memory of 4000	2420	935f0cbbce8cec3ac9c4fa530761d81c9f6e5d33cd5c6c6c447778dd80023990.exe	84
PID 2420 wrote to memory of 4000	2420	935f0cbbce8cec3ac9c4fa530761d81c9f6e5d33cd5c6c6c447778dd80023990.exe	84
PID 2420 wrote to memory of 4000	2420	935f0cbbce8cec3ac9c4fa530761d81c9f6e5d33cd5c6c6c447778dd80023990.exe	84
PID 4000 wrote to memory of 3444	4000	winver.exe	56
PID 4000 wrote to memory of 2728	4000	winver.exe	49

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
PID:2728

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3444
- C:\Users\Admin\AppData\Local\Temp\935f0cbbce8cec3ac9c4fa530761d81c9f6e5d33cd5c6c6c447778dd80023990.exe
  "C:\Users\Admin\AppData\Local\Temp\935f0cbbce8cec3ac9c4fa530761d81c9f6e5d33cd5c6c6c447778dd80023990.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2420
- - 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:4000
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4000 -s 352
      4⤵
      Program crash
      PID:3436

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4000 -ip 4000
1⤵
PID:1152

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/2420-9-0x0000000000400000-0x000000000041D000-memory.dmp

Filesize
116KB

Download
memory/2420-1-0x00000000004B0000-0x00000000004B1000-memory.dmp

Filesize
4KB

Download
memory/2420-0-0x0000000000400000-0x000000000041D000-memory.dmp

Filesize
116KB

Download
memory/2420-4-0x0000000002350000-0x0000000002D50000-memory.dmp

Filesize
10.0MB

Download
memory/2420-10-0x0000000002350000-0x0000000002D50000-memory.dmp

Filesize
10.0MB

Download
memory/2728-14-0x0000000000E70000-0x0000000000E76000-memory.dmp

Filesize
24KB

Download
memory/3444-2-0x0000000000B60000-0x0000000000B66000-memory.dmp

Filesize
24KB

Download
memory/3444-7-0x00007FFCF260D000-0x00007FFCF260E000-memory.dmp

Filesize
4KB

Download
memory/3444-3-0x0000000000B60000-0x0000000000B66000-memory.dmp

Filesize
24KB

Download
memory/4000-6-0x0000000077E42000-0x0000000077E43000-memory.dmp

Filesize
4KB

Download
memory/4000-8-0x00007FFCF2570000-0x00007FFCF2765000-memory.dmp

Filesize
2.0MB

Download
memory/4000-5-0x0000000000920000-0x0000000000926000-memory.dmp

Filesize
24KB

Download
memory/4000-15-0x0000000000920000-0x0000000000926000-memory.dmp

Filesize
24KB

Download