tinba | 85b8b4ebb35f6581511e7951de805e358859233959e27c7c0bca4b194cb37906

Analysis

max time kernel
109s
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
04-12-2024 17:03

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General

Target

85b8b4ebb35f6581511e7951de805e358859233959e27c7c0bca4b194cb37906N.exe
Size

45KB
MD5

75456bb7d5f8847c05fb651b7b0d0270
SHA1

faafe09c1879cdcc0dedb5f138e13d1f9ee18b7e
SHA256

85b8b4ebb35f6581511e7951de805e358859233959e27c7c0bca4b194cb37906
SHA512

5b8dc8c5d049a6aac94f200f6cc9f6e845e26e56e547d831484108f6aa72681cbe52b2365869b87c52829ffe00c980a18b41bb8d46208eaaceed84b1de2c081b
SSDEEP

768:rhP0kDE9N5dCA8J7VHXdrIniQaBTT+QQ+r1n4K8+C9TtIuCjaqUODvJVQ21:NsWE9N5dFu53dsniQaB/xZ14n7zIF+qZ

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-1-5-21-3227495264-2217614367-4027411560-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\DEA73B8B = "C:\\Users\\Admin\\AppData\\Roaming\\DEA73B8B\\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/3252-0-0x0000000000400000-0x000000000041D000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2424	3864	WerFault.exe	83

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	85b8b4ebb35f6581511e7951de805e358859233959e27c7c0bca4b194cb37906N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winver.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
3864	winver.exe
3864	winver.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeShutdownPrivilege	3484	Explorer.EXE
Token: SeCreatePagefilePrivilege	3484	Explorer.EXE

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
3864	winver.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 3252 wrote to memory of 3864	3252	85b8b4ebb35f6581511e7951de805e358859233959e27c7c0bca4b194cb37906N.exe	83
PID 3252 wrote to memory of 3864	3252	85b8b4ebb35f6581511e7951de805e358859233959e27c7c0bca4b194cb37906N.exe	83
PID 3252 wrote to memory of 3864	3252	85b8b4ebb35f6581511e7951de805e358859233959e27c7c0bca4b194cb37906N.exe	83
PID 3252 wrote to memory of 3864	3252	85b8b4ebb35f6581511e7951de805e358859233959e27c7c0bca4b194cb37906N.exe	83
PID 3864 wrote to memory of 3484	3864	winver.exe	56
PID 3864 wrote to memory of 2604	3864	winver.exe	44

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
PID:2604

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3484
- C:\Users\Admin\AppData\Local\Temp\85b8b4ebb35f6581511e7951de805e358859233959e27c7c0bca4b194cb37906N.exe
  "C:\Users\Admin\AppData\Local\Temp\85b8b4ebb35f6581511e7951de805e358859233959e27c7c0bca4b194cb37906N.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3252
- - 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:3864
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3864 -s 352
      4⤵
      Program crash
      PID:2424

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 376 -p 3864 -ip 3864
1⤵
PID:4844

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/2604-14-0x00000000009A0000-0x00000000009A6000-memory.dmp

Filesize
24KB

Download
memory/3252-9-0x0000000000400000-0x000000000041D000-memory.dmp

Filesize
116KB

Download
memory/3252-1-0x00000000005A0000-0x00000000005A1000-memory.dmp

Filesize
4KB

Download
memory/3252-0-0x0000000000400000-0x000000000041D000-memory.dmp

Filesize
116KB

Download
memory/3252-4-0x0000000002280000-0x0000000002C80000-memory.dmp

Filesize
10.0MB

Download
memory/3252-10-0x0000000002280000-0x0000000002C80000-memory.dmp

Filesize
10.0MB

Download
memory/3484-2-0x0000000000A80000-0x0000000000A86000-memory.dmp

Filesize
24KB

Download
memory/3484-7-0x00007FFDB7C8D000-0x00007FFDB7C8E000-memory.dmp

Filesize
4KB

Download
memory/3484-3-0x0000000000A80000-0x0000000000A86000-memory.dmp

Filesize
24KB

Download
memory/3864-5-0x0000000001390000-0x0000000001396000-memory.dmp

Filesize
24KB

Download
memory/3864-8-0x00007FFDB7BF0000-0x00007FFDB7DE5000-memory.dmp

Filesize
2.0MB

Download
memory/3864-6-0x0000000077502000-0x0000000077503000-memory.dmp

Filesize
4KB

Download
memory/3864-15-0x0000000001390000-0x0000000001396000-memory.dmp

Filesize
24KB

Download