tinba | a41a7667b4d40f6227666c0549127cda7c936002df6442a93b5a1281f8f3458b

Analysis

max time kernel
119s
max time network
102s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
14/08/2024, 21:41

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General

Target

95d91a6dfaf5070a9cab4427382916a0N.exe
Size

45KB
MD5

95d91a6dfaf5070a9cab4427382916a0
SHA1

4a08a2ebc6ea11dfe23e7daa36cd57e6e777efbb
SHA256

a41a7667b4d40f6227666c0549127cda7c936002df6442a93b5a1281f8f3458b
SHA512

3725d5f0b88a14f5adf668489eac3dc9981bac726da14675e27faab0170e3e1b50432a1d2c35a32e85ce4f98fcf0126bc4a548fba020aa62c87c8184e89a3d0c
SSDEEP

768:FhP0kDE9N5dCA8J7VHXdrIniQaBTT+QQ+r1n4K8+C9TtIuCjaqUODvJVQ2f:XsWE9N5dFu53dsniQaB/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/4832-0-0x0000000000400000-0x000000000041D000-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-1-5-21-1302416131-1437503476-2806442725-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\CE39B378 = "C:\\Users\\Admin\\AppData\\Roaming\\CE39B378\\bin.exe"	winver.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
3532	3788	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	95d91a6dfaf5070a9cab4427382916a0N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winver.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
3788	winver.exe
3788	winver.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeShutdownPrivilege	3464	Explorer.EXE
Token: SeCreatePagefilePrivilege	3464	Explorer.EXE

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
3788	winver.exe

Suspicious use of UnmapMainImage 1 IoCs

pid	Process
3464	Explorer.EXE

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4832 wrote to memory of 3788	4832	95d91a6dfaf5070a9cab4427382916a0N.exe	85
PID 4832 wrote to memory of 3788	4832	95d91a6dfaf5070a9cab4427382916a0N.exe	85
PID 4832 wrote to memory of 3788	4832	95d91a6dfaf5070a9cab4427382916a0N.exe	85
PID 4832 wrote to memory of 3788	4832	95d91a6dfaf5070a9cab4427382916a0N.exe	85
PID 3788 wrote to memory of 3464	3788	winver.exe	56
PID 3788 wrote to memory of 2520	3788	winver.exe	42

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
PID:2520

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of UnmapMainImage
PID:3464
- C:\Users\Admin\AppData\Local\Temp\95d91a6dfaf5070a9cab4427382916a0N.exe
  "C:\Users\Admin\AppData\Local\Temp\95d91a6dfaf5070a9cab4427382916a0N.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4832
- - 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:3788
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3788 -s 352
      4⤵
      Program crash
      PID:3532

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3788 -ip 3788
1⤵
PID:2900

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/2520-18-0x00007FFA3D0F0000-0x00007FFA3D0F1000-memory.dmp

Filesize
4KB

Download
memory/2520-15-0x00000000000F0000-0x00000000000F6000-memory.dmp

Filesize
24KB

Download
memory/3464-8-0x00007FFA3D100000-0x00007FFA3D101000-memory.dmp

Filesize
4KB

Download
memory/3464-3-0x0000000000AD0000-0x0000000000AD6000-memory.dmp

Filesize
24KB

Download
memory/3464-2-0x0000000000AD0000-0x0000000000AD6000-memory.dmp

Filesize
24KB

Download
memory/3464-6-0x00007FFA3CF6D000-0x00007FFA3CF6E000-memory.dmp

Filesize
4KB

Download
memory/3788-5-0x0000000077C72000-0x0000000077C73000-memory.dmp

Filesize
4KB

Download
memory/3788-7-0x00007FFA3CED0000-0x00007FFA3D0C5000-memory.dmp

Filesize
2.0MB

Download
memory/3788-13-0x0000000000770000-0x0000000000776000-memory.dmp

Filesize
24KB

Download
memory/3788-16-0x0000000000770000-0x0000000000776000-memory.dmp

Filesize
24KB

Download
memory/4832-0-0x0000000000400000-0x000000000041D000-memory.dmp

Filesize
116KB

Download
memory/4832-10-0x0000000000400000-0x000000000041D000-memory.dmp

Filesize
116KB

Download
memory/4832-11-0x0000000002370000-0x0000000002D70000-memory.dmp

Filesize
10.0MB

Download
memory/4832-4-0x0000000002370000-0x0000000002D70000-memory.dmp

Filesize
10.0MB

Download
memory/4832-1-0x00000000005C0000-0x00000000005C1000-memory.dmp

Filesize
4KB

Download