tinba | bf6fcf3bce8de45d65594c44b85be0c3e1d2c22ff707bfbecac09cbdf5134527

Analysis

max time kernel
113s
max time network
95s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
11-12-2024 00:26

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General

Target

bf6fcf3bce8de45d65594c44b85be0c3e1d2c22ff707bfbecac09cbdf5134527N.exe
Size

45KB
MD5

6a870e96533830f962fe6bb72f78a9d0
SHA1

14aa4641f4869e775f8dd88efa596effaa389bc8
SHA256

bf6fcf3bce8de45d65594c44b85be0c3e1d2c22ff707bfbecac09cbdf5134527
SHA512

224a3c092333456d668cad04190047d3ae3c274f05890c06d01c8c2c95a74fb52e040a326a51bc4f95461e551271bf8e12448649dc1fbde27da1f77823552477
SSDEEP

768:ThP0kDE9N5dCA8J7VHXdrIniQaBTT+QQ+r1n4K8+C9TtIuCjaqUODvJVQ2H:FsWE9N5dFu53dsniQaB/xZ14n7zIF+qT

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-1-5-21-3756129449-3121373848-4276368241-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\D8DD4665 = "C:\\Users\\Admin\\AppData\\Roaming\\D8DD4665\\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/5044-0-0x0000000000400000-0x000000000041D000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
876	3012	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	bf6fcf3bce8de45d65594c44b85be0c3e1d2c22ff707bfbecac09cbdf5134527N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winver.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
3012	winver.exe
3012	winver.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeShutdownPrivilege	3500	Explorer.EXE
Token: SeCreatePagefilePrivilege	3500	Explorer.EXE

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
3012	winver.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 5044 wrote to memory of 3012	5044	bf6fcf3bce8de45d65594c44b85be0c3e1d2c22ff707bfbecac09cbdf5134527N.exe	83
PID 5044 wrote to memory of 3012	5044	bf6fcf3bce8de45d65594c44b85be0c3e1d2c22ff707bfbecac09cbdf5134527N.exe	83
PID 5044 wrote to memory of 3012	5044	bf6fcf3bce8de45d65594c44b85be0c3e1d2c22ff707bfbecac09cbdf5134527N.exe	83
PID 5044 wrote to memory of 3012	5044	bf6fcf3bce8de45d65594c44b85be0c3e1d2c22ff707bfbecac09cbdf5134527N.exe	83
PID 3012 wrote to memory of 3500	3012	winver.exe	55
PID 3012 wrote to memory of 2636	3012	winver.exe	44

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
PID:2636

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3500
- C:\Users\Admin\AppData\Local\Temp\bf6fcf3bce8de45d65594c44b85be0c3e1d2c22ff707bfbecac09cbdf5134527N.exe
  "C:\Users\Admin\AppData\Local\Temp\bf6fcf3bce8de45d65594c44b85be0c3e1d2c22ff707bfbecac09cbdf5134527N.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:5044
- - 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:3012
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3012 -s 352
      4⤵
      Program crash
      PID:876

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 376 -p 3012 -ip 3012
1⤵
PID:3284

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/2636-14-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/3012-6-0x0000000077A82000-0x0000000077A83000-memory.dmp

Filesize
4KB

Download
memory/3012-15-0x00000000028F0000-0x00000000028F6000-memory.dmp

Filesize
24KB

Download
memory/3012-8-0x00007FFBF0670000-0x00007FFBF0865000-memory.dmp

Filesize
2.0MB

Download
memory/3012-5-0x00000000028F0000-0x00000000028F6000-memory.dmp

Filesize
24KB

Download
memory/3500-2-0x00000000011A0000-0x00000000011A6000-memory.dmp

Filesize
24KB

Download
memory/3500-7-0x00007FFBF070D000-0x00007FFBF070E000-memory.dmp

Filesize
4KB

Download
memory/3500-3-0x00000000011A0000-0x00000000011A6000-memory.dmp

Filesize
24KB

Download
memory/5044-4-0x0000000002200000-0x0000000002C00000-memory.dmp

Filesize
10.0MB

Download
memory/5044-0-0x0000000000400000-0x000000000041D000-memory.dmp

Filesize
116KB

Download
memory/5044-9-0x0000000000400000-0x000000000041D000-memory.dmp

Filesize
116KB

Download
memory/5044-10-0x0000000002200000-0x0000000002C00000-memory.dmp

Filesize
10.0MB

Download
memory/5044-1-0x0000000002160000-0x0000000002161000-memory.dmp

Filesize
4KB

Download