tinba | 85995f0d26301c927f5f4762731f9a71901d8d49d74595b968da6fb9cc38704b

Analysis

max time kernel
119s
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
16-01-2025 04:34

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General

Target

85995f0d26301c927f5f4762731f9a71901d8d49d74595b968da6fb9cc38704b.exe
Size

110KB
MD5

a9b5d824c222e12008cc5e15501ca14c
SHA1

f12bf2de58e14bcc395fd6b6561603389faef33c
SHA256

85995f0d26301c927f5f4762731f9a71901d8d49d74595b968da6fb9cc38704b
SHA512

37068f81980b3a5b752d33536c46af03e141f995104ba499b8aa5b01b0dc1076bb711a1da0b49adcb51be7d6041cf386b088cc69c7406c2fb6fcd70d05534703
SSDEEP

1536:xiLOvRmmQegJfBbmAQ256/ZrwWnwqjhurmKFcxL8JQ2r0EA:xiyvRmDLs/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-1-5-21-3442511616-637977696-3186306149-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\3340F146 = "C:\\Users\\Admin\\AppData\\Roaming\\3340F146\\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/632-0-0x0000000000400000-0x000000000041E000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
4816	3688	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	85995f0d26301c927f5f4762731f9a71901d8d49d74595b968da6fb9cc38704b.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winver.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
3688	winver.exe
3688	winver.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeShutdownPrivilege	3488	Explorer.EXE
Token: SeCreatePagefilePrivilege	3488	Explorer.EXE

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
3688	winver.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 632 wrote to memory of 3688	632	85995f0d26301c927f5f4762731f9a71901d8d49d74595b968da6fb9cc38704b.exe	83
PID 632 wrote to memory of 3688	632	85995f0d26301c927f5f4762731f9a71901d8d49d74595b968da6fb9cc38704b.exe	83
PID 632 wrote to memory of 3688	632	85995f0d26301c927f5f4762731f9a71901d8d49d74595b968da6fb9cc38704b.exe	83
PID 632 wrote to memory of 3688	632	85995f0d26301c927f5f4762731f9a71901d8d49d74595b968da6fb9cc38704b.exe	83
PID 3688 wrote to memory of 3488	3688	winver.exe	56
PID 3688 wrote to memory of 2520	3688	winver.exe	42

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
PID:2520

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3488
- C:\Users\Admin\AppData\Local\Temp\85995f0d26301c927f5f4762731f9a71901d8d49d74595b968da6fb9cc38704b.exe
  "C:\Users\Admin\AppData\Local\Temp\85995f0d26301c927f5f4762731f9a71901d8d49d74595b968da6fb9cc38704b.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:632
- - 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:3688
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3688 -s 352
      4⤵
      Program crash
      PID:4816

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 376 -p 3688 -ip 3688
1⤵
PID:3356

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

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Downloads

memory/632-8-0x0000000000400000-0x000000000041E000-memory.dmp

Filesize
120KB

Download
memory/632-1-0x00000000006C0000-0x00000000006C1000-memory.dmp

Filesize
4KB

Download
memory/632-0-0x0000000000400000-0x000000000041E000-memory.dmp

Filesize
120KB

Download
memory/632-4-0x00000000022E0000-0x0000000002CE0000-memory.dmp

Filesize
10.0MB

Download
memory/632-9-0x00000000022E0000-0x0000000002CE0000-memory.dmp

Filesize
10.0MB

Download
memory/2520-13-0x0000000000040000-0x0000000000046000-memory.dmp

Filesize
24KB

Download
memory/3488-3-0x0000000002CC0000-0x0000000002CC6000-memory.dmp

Filesize
24KB

Download
memory/3488-6-0x00007FF8835AD000-0x00007FF8835AE000-memory.dmp

Filesize
4KB

Download
memory/3488-2-0x0000000002CC0000-0x0000000002CC6000-memory.dmp

Filesize
24KB

Download
memory/3688-7-0x00007FF883510000-0x00007FF883705000-memory.dmp

Filesize
2.0MB

Download
memory/3688-5-0x0000000077592000-0x0000000077593000-memory.dmp

Filesize
4KB

Download
memory/3688-11-0x0000000002C70000-0x0000000002C76000-memory.dmp

Filesize
24KB

Download
memory/3688-14-0x0000000002C70000-0x0000000002C76000-memory.dmp

Filesize
24KB

Download