tinba | c8d6e6cf49d864e490e723349500402cfbd10936b283647098cb7011c62e2603

Analysis

max time kernel
118s
max time network
98s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
04-01-2025 17:06

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General

Target

c8d6e6cf49d864e490e723349500402cfbd10936b283647098cb7011c62e2603N.exe
Size

110KB
MD5

684e6513e426a7d665d22139723738d0
SHA1

43d4e7ee2ea2bf25ff10528e5f10df659147e4e0
SHA256

c8d6e6cf49d864e490e723349500402cfbd10936b283647098cb7011c62e2603
SHA512

86801d4f4447bd47c885fb3440af3bec4538c459b4c1c254c73d781a12382e80a53b9244d602e242cf058e9478f76e81162df74af89072aaefbee15bd39e8eff
SSDEEP

1536:riLOvRmmQegJfBbmAQ256/ZrwWnwqjhurmKFcxL8JQ2r0EA:riyvRmDLs/ZrwWJjAqGcRJ2hA

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-1-5-21-940901362-3608833189-1915618603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\A85B738C = "C:\\Users\\Admin\\AppData\\Roaming\\A85B738C\\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/368-0-0x0000000000400000-0x000000000041E000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1836	4836	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	c8d6e6cf49d864e490e723349500402cfbd10936b283647098cb7011c62e2603N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winver.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4836	winver.exe
4836	winver.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeShutdownPrivilege	3444	Explorer.EXE
Token: SeCreatePagefilePrivilege	3444	Explorer.EXE

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
4836	winver.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 368 wrote to memory of 4836	368	c8d6e6cf49d864e490e723349500402cfbd10936b283647098cb7011c62e2603N.exe	84
PID 368 wrote to memory of 4836	368	c8d6e6cf49d864e490e723349500402cfbd10936b283647098cb7011c62e2603N.exe	84
PID 368 wrote to memory of 4836	368	c8d6e6cf49d864e490e723349500402cfbd10936b283647098cb7011c62e2603N.exe	84
PID 368 wrote to memory of 4836	368	c8d6e6cf49d864e490e723349500402cfbd10936b283647098cb7011c62e2603N.exe	84
PID 4836 wrote to memory of 3444	4836	winver.exe	56
PID 4836 wrote to memory of 2672	4836	winver.exe	44

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
PID:2672

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3444
- C:\Users\Admin\AppData\Local\Temp\c8d6e6cf49d864e490e723349500402cfbd10936b283647098cb7011c62e2603N.exe
  "C:\Users\Admin\AppData\Local\Temp\c8d6e6cf49d864e490e723349500402cfbd10936b283647098cb7011c62e2603N.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:368
- - 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:4836
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4836 -s 352
      4⤵
      Program crash
      PID:1836

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4836 -ip 4836
1⤵
PID:4144

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/368-9-0x0000000000400000-0x000000000041E000-memory.dmp

Filesize
120KB

Download
memory/368-1-0x0000000000570000-0x0000000000571000-memory.dmp

Filesize
4KB

Download
memory/368-0-0x0000000000400000-0x000000000041E000-memory.dmp

Filesize
120KB

Download
memory/368-4-0x0000000002120000-0x0000000002B20000-memory.dmp

Filesize
10.0MB

Download
memory/368-10-0x0000000002120000-0x0000000002B20000-memory.dmp

Filesize
10.0MB

Download
memory/2672-14-0x0000000000B20000-0x0000000000B26000-memory.dmp

Filesize
24KB

Download
memory/3444-2-0x0000000000AF0000-0x0000000000AF6000-memory.dmp

Filesize
24KB

Download
memory/3444-7-0x00007FF86554D000-0x00007FF86554E000-memory.dmp

Filesize
4KB

Download
memory/3444-3-0x0000000000AF0000-0x0000000000AF6000-memory.dmp

Filesize
24KB

Download
memory/4836-6-0x00000000773D2000-0x00000000773D3000-memory.dmp

Filesize
4KB

Download
memory/4836-8-0x00007FF8654B0000-0x00007FF8656A5000-memory.dmp

Filesize
2.0MB

Download
memory/4836-5-0x0000000002AA0000-0x0000000002AA6000-memory.dmp

Filesize
24KB

Download
memory/4836-15-0x0000000002AA0000-0x0000000002AA6000-memory.dmp

Filesize
24KB

Download