tinba | b2e10ce24d6c0991d24c55573a5ec336622cb051c6beeaade542e0e9734eb67f

Analysis

max time kernel
108s
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
02-12-2024 18:20

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General

Target

b2e10ce24d6c0991d24c55573a5ec336622cb051c6beeaade542e0e9734eb67f.exe
Size

45KB
MD5

1cc799f36adf68aa9801b5782d210a16
SHA1

b67a5effcc0ef0b65b8d2dc7d99f1e988cbb44a5
SHA256

b2e10ce24d6c0991d24c55573a5ec336622cb051c6beeaade542e0e9734eb67f
SHA512

1fdfd90f4db92fccd4490431c1db052896fe1871801a3399fd7774cd251fa726f9f4ab693d8b1d9112b500fdc99fc30eab2f8ce2c1fc5d099a54cb16c71a0239
SSDEEP

768:6hP0kDE9N5dCA8J7VHXdrIniQaBTT+QQ+r1n4K8+C9TtIuCjaqUODvJVQ2d:2sWE9N5dFu53dsniQaB/xZ14n7zIF+qh

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\99D73199 = "C:\\Users\\Admin\\AppData\\Roaming\\99D73199\\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/2328-0-0x0000000000400000-0x000000000041D000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
4456	1836	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	b2e10ce24d6c0991d24c55573a5ec336622cb051c6beeaade542e0e9734eb67f.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winver.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1836	winver.exe
1836	winver.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeShutdownPrivilege	3524	Explorer.EXE
Token: SeCreatePagefilePrivilege	3524	Explorer.EXE

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
1836	winver.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2328 wrote to memory of 1836	2328	b2e10ce24d6c0991d24c55573a5ec336622cb051c6beeaade542e0e9734eb67f.exe	83
PID 2328 wrote to memory of 1836	2328	b2e10ce24d6c0991d24c55573a5ec336622cb051c6beeaade542e0e9734eb67f.exe	83
PID 2328 wrote to memory of 1836	2328	b2e10ce24d6c0991d24c55573a5ec336622cb051c6beeaade542e0e9734eb67f.exe	83
PID 2328 wrote to memory of 1836	2328	b2e10ce24d6c0991d24c55573a5ec336622cb051c6beeaade542e0e9734eb67f.exe	83
PID 1836 wrote to memory of 3524	1836	winver.exe	56
PID 1836 wrote to memory of 2652	1836	winver.exe	45

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
PID:2652

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3524
- C:\Users\Admin\AppData\Local\Temp\b2e10ce24d6c0991d24c55573a5ec336622cb051c6beeaade542e0e9734eb67f.exe
  "C:\Users\Admin\AppData\Local\Temp\b2e10ce24d6c0991d24c55573a5ec336622cb051c6beeaade542e0e9734eb67f.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2328
- - 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:1836
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1836 -s 352
      4⤵
      Program crash
      PID:4456

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 1836 -ip 1836
1⤵
PID:5076

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/1836-5-0x0000000077C92000-0x0000000077C93000-memory.dmp

Filesize
4KB

Download
memory/1836-14-0x0000000000850000-0x0000000000856000-memory.dmp

Filesize
24KB

Download
memory/1836-11-0x0000000000850000-0x0000000000856000-memory.dmp

Filesize
24KB

Download
memory/1836-7-0x00007FF9349B0000-0x00007FF934BA5000-memory.dmp

Filesize
2.0MB

Download
memory/2328-9-0x0000000002200000-0x0000000002C00000-memory.dmp

Filesize
10.0MB

Download
memory/2328-4-0x0000000002200000-0x0000000002C00000-memory.dmp

Filesize
10.0MB

Download
memory/2328-8-0x0000000000400000-0x000000000041D000-memory.dmp

Filesize
116KB

Download
memory/2328-0-0x0000000000400000-0x000000000041D000-memory.dmp

Filesize
116KB

Download
memory/2328-1-0x00000000005D0000-0x00000000005D1000-memory.dmp

Filesize
4KB

Download
memory/2652-13-0x0000000000A90000-0x0000000000A96000-memory.dmp

Filesize
24KB

Download
memory/3524-6-0x00007FF934A4D000-0x00007FF934A4E000-memory.dmp

Filesize
4KB

Download
memory/3524-2-0x0000000000A10000-0x0000000000A16000-memory.dmp

Filesize
24KB

Download
memory/3524-3-0x0000000000A10000-0x0000000000A16000-memory.dmp

Filesize
24KB

Download