tinba | e42227a525e742f33cfa79d27c38ec6616e112343b58938693ab8c6bca08d970

Analysis

max time kernel
134s
max time network
143s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
26-11-2024 17:45

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General

Target

e42227a525e742f33cfa79d27c38ec6616e112343b58938693ab8c6bca08d970.exe
Size

45KB
MD5

755f7f8bbc212a8f06ed1de0526c0039
SHA1

3e5965ae93448aed5bd49b4ad91d84a5ce0287d2
SHA256

e42227a525e742f33cfa79d27c38ec6616e112343b58938693ab8c6bca08d970
SHA512

b87b7e79a0be521a28545aa29303f9f2422776691205bb17778fb04d2030a4effded8c13278d27033d1a7d480e3f347ce1b3b1c7ba3b725c022a1e4247b2d0f0
SSDEEP

768:ohP0kDE9N5dCA8J7VHXdrIniQaBTT+QQ+r1n4K8+C9TtIuCjaqUODvJVQ2P:UsWE9N5dFu53dsniQaB/xZ14n7zIF+q7

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-1-5-21-493223053-2004649691-1575712786-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\6335A8C1 = "C:\\Users\\Admin\\AppData\\Roaming\\6335A8C1\\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/4724-0-0x0000000000400000-0x000000000041D000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
4516	1916	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	e42227a525e742f33cfa79d27c38ec6616e112343b58938693ab8c6bca08d970.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winver.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1916	winver.exe
1916	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
1916	winver.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4724 wrote to memory of 1916	4724	e42227a525e742f33cfa79d27c38ec6616e112343b58938693ab8c6bca08d970.exe	84
PID 4724 wrote to memory of 1916	4724	e42227a525e742f33cfa79d27c38ec6616e112343b58938693ab8c6bca08d970.exe	84
PID 4724 wrote to memory of 1916	4724	e42227a525e742f33cfa79d27c38ec6616e112343b58938693ab8c6bca08d970.exe	84
PID 4724 wrote to memory of 1916	4724	e42227a525e742f33cfa79d27c38ec6616e112343b58938693ab8c6bca08d970.exe	84
PID 1916 wrote to memory of 3500	1916	winver.exe	56
PID 1916 wrote to memory of 2676	1916	winver.exe	44

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
PID:2676

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3500
- C:\Users\Admin\AppData\Local\Temp\e42227a525e742f33cfa79d27c38ec6616e112343b58938693ab8c6bca08d970.exe
  "C:\Users\Admin\AppData\Local\Temp\e42227a525e742f33cfa79d27c38ec6616e112343b58938693ab8c6bca08d970.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4724
- - 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:1916
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1916 -s 352
      4⤵
      Program crash
      PID:4516

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 1916 -ip 1916
1⤵
PID:3836

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/1916-5-0x0000000001370000-0x0000000001376000-memory.dmp

Filesize
24KB

Download
memory/1916-15-0x0000000001370000-0x0000000001376000-memory.dmp

Filesize
24KB

Download
memory/1916-8-0x00007FFF64150000-0x00007FFF64345000-memory.dmp

Filesize
2.0MB

Download
memory/1916-6-0x0000000077CF2000-0x0000000077CF3000-memory.dmp

Filesize
4KB

Download
memory/2676-14-0x0000000000DB0000-0x0000000000DB6000-memory.dmp

Filesize
24KB

Download
memory/3500-7-0x00007FFF641ED000-0x00007FFF641EE000-memory.dmp

Filesize
4KB

Download
memory/3500-2-0x0000000000CE0000-0x0000000000CE6000-memory.dmp

Filesize
24KB

Download
memory/3500-3-0x0000000000CE0000-0x0000000000CE6000-memory.dmp

Filesize
24KB

Download
memory/4724-0-0x0000000000400000-0x000000000041D000-memory.dmp

Filesize
116KB

Download
memory/4724-4-0x0000000002290000-0x0000000002C90000-memory.dmp

Filesize
10.0MB

Download
memory/4724-9-0x0000000000400000-0x000000000041D000-memory.dmp

Filesize
116KB

Download
memory/4724-10-0x0000000002290000-0x0000000002C90000-memory.dmp

Filesize
10.0MB

Download
memory/4724-1-0x00000000004A0000-0x00000000004A1000-memory.dmp

Filesize
4KB

Download