tinba | 4c394c70a789d0a4813d80157f004945d6ed61af32bf467ab59e829763357f0a

Analysis

max time kernel
109s
max time network
96s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
02-01-2025 06:40

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General

Target

4c394c70a789d0a4813d80157f004945d6ed61af32bf467ab59e829763357f0a.exe
Size

45KB
MD5

57f4434acd395c7ef77b773f2a47d841
SHA1

7c42c521f370267bd524300fd866f6ad2345ace6
SHA256

4c394c70a789d0a4813d80157f004945d6ed61af32bf467ab59e829763357f0a
SHA512

85195024afaa2651d922bdefd509c4bfea59980f0ac6459a9c246b873b6224c3a24589f36d40b2bd1109eb93a8a3cf3d09f92cfa00d6d8a5c47676d9f23be50b
SSDEEP

768:ihP0kDE9N5dCA8J7VHXdrIniQaBTT+QQ+r1n4K8+C9TtIuCjaqUODvJVQ2v:OsWE9N5dFu53dsniQaB/xZ14n7zIF+qb

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-1-5-21-4050598569-1597076380-177084960-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\2F9101AD = "C:\\Users\\Admin\\AppData\\Roaming\\2F9101AD\\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/3860-0-0x0000000000400000-0x000000000041D000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
3640	3088	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	4c394c70a789d0a4813d80157f004945d6ed61af32bf467ab59e829763357f0a.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winver.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
3088	winver.exe
3088	winver.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeShutdownPrivilege	3468	Explorer.EXE
Token: SeCreatePagefilePrivilege	3468	Explorer.EXE

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
3088	winver.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 3860 wrote to memory of 3088	3860	4c394c70a789d0a4813d80157f004945d6ed61af32bf467ab59e829763357f0a.exe	83
PID 3860 wrote to memory of 3088	3860	4c394c70a789d0a4813d80157f004945d6ed61af32bf467ab59e829763357f0a.exe	83
PID 3860 wrote to memory of 3088	3860	4c394c70a789d0a4813d80157f004945d6ed61af32bf467ab59e829763357f0a.exe	83
PID 3860 wrote to memory of 3088	3860	4c394c70a789d0a4813d80157f004945d6ed61af32bf467ab59e829763357f0a.exe	83
PID 3088 wrote to memory of 3468	3088	winver.exe	56
PID 3088 wrote to memory of 2780	3088	winver.exe	47

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
PID:2780

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3468
- C:\Users\Admin\AppData\Local\Temp\4c394c70a789d0a4813d80157f004945d6ed61af32bf467ab59e829763357f0a.exe
  "C:\Users\Admin\AppData\Local\Temp\4c394c70a789d0a4813d80157f004945d6ed61af32bf467ab59e829763357f0a.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3860
- - 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:3088
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3088 -s 352
      4⤵
      Program crash
      PID:3640

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3088 -ip 3088
1⤵
PID:3544

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/2780-13-0x0000000000BB0000-0x0000000000BB6000-memory.dmp

Filesize
24KB

Download
memory/3088-5-0x0000000077552000-0x0000000077553000-memory.dmp

Filesize
4KB

Download
memory/3088-14-0x0000000000E00000-0x0000000000E06000-memory.dmp

Filesize
24KB

Download
memory/3088-11-0x0000000000E00000-0x0000000000E06000-memory.dmp

Filesize
24KB

Download
memory/3088-7-0x00007FF8401B0000-0x00007FF8403A5000-memory.dmp

Filesize
2.0MB

Download
memory/3468-6-0x00007FF84024D000-0x00007FF84024E000-memory.dmp

Filesize
4KB

Download
memory/3468-2-0x0000000002B10000-0x0000000002B16000-memory.dmp

Filesize
24KB

Download
memory/3468-3-0x0000000002B10000-0x0000000002B16000-memory.dmp

Filesize
24KB

Download
memory/3860-0-0x0000000000400000-0x000000000041D000-memory.dmp

Filesize
116KB

Download
memory/3860-4-0x00000000023A0000-0x0000000002DA0000-memory.dmp

Filesize
10.0MB

Download
memory/3860-8-0x0000000000400000-0x000000000041D000-memory.dmp

Filesize
116KB

Download
memory/3860-9-0x00000000023A0000-0x0000000002DA0000-memory.dmp

Filesize
10.0MB

Download
memory/3860-1-0x00000000004F0000-0x00000000004F1000-memory.dmp

Filesize
4KB

Download