tinba | 9bd693d80028e360c73e9ac0a9913c7ec914392bf351bb15ed70ac80ac601546

Analysis

max time kernel
103s
max time network
93s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
27-11-2024 16:23

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General

Target

9bd693d80028e360c73e9ac0a9913c7ec914392bf351bb15ed70ac80ac601546N.exe
Size

110KB
MD5

d753df801c632c8d872f841ea2393bb0
SHA1

005355f720a647f7b5f14ae812b207fc3627c67b
SHA256

9bd693d80028e360c73e9ac0a9913c7ec914392bf351bb15ed70ac80ac601546
SHA512

8e1e4754932bd74def2340ff895e01784337f92942b6d19c452e1a5026177e3e55043b750a354817fc2e410ae67107b919b443e5df825cc05ba7fb46a3e27155
SSDEEP

1536:YiLOvRmmQegJfBbmAQ256/ZrwWnwqjhurmKFcxL8JQ2r0Eg:YiyvRmDLs/ZrwWJjAqGcRJ2hg

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\3A9DEE9E = "C:\\Users\\Admin\\AppData\\Roaming\\3A9DEE9E\\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/3124-0-0x0000000000400000-0x000000000041E000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
736	3992	WerFault.exe	85

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	9bd693d80028e360c73e9ac0a9913c7ec914392bf351bb15ed70ac80ac601546N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winver.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
3992	winver.exe
3992	winver.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeShutdownPrivilege	3560	Explorer.EXE
Token: SeCreatePagefilePrivilege	3560	Explorer.EXE

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
3992	winver.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 3124 wrote to memory of 3992	3124	9bd693d80028e360c73e9ac0a9913c7ec914392bf351bb15ed70ac80ac601546N.exe	85
PID 3124 wrote to memory of 3992	3124	9bd693d80028e360c73e9ac0a9913c7ec914392bf351bb15ed70ac80ac601546N.exe	85
PID 3124 wrote to memory of 3992	3124	9bd693d80028e360c73e9ac0a9913c7ec914392bf351bb15ed70ac80ac601546N.exe	85
PID 3124 wrote to memory of 3992	3124	9bd693d80028e360c73e9ac0a9913c7ec914392bf351bb15ed70ac80ac601546N.exe	85
PID 3992 wrote to memory of 3560	3992	winver.exe	56
PID 3992 wrote to memory of 2660	3992	winver.exe	44

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
PID:2660

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3560
- C:\Users\Admin\AppData\Local\Temp\9bd693d80028e360c73e9ac0a9913c7ec914392bf351bb15ed70ac80ac601546N.exe
  "C:\Users\Admin\AppData\Local\Temp\9bd693d80028e360c73e9ac0a9913c7ec914392bf351bb15ed70ac80ac601546N.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3124
- - 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:3992
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3992 -s 352
      4⤵
      Program crash
      PID:736

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 3992 -ip 3992
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/2660-14-0x0000000000580000-0x0000000000586000-memory.dmp

Filesize
24KB

Download
memory/3124-9-0x0000000000400000-0x000000000041E000-memory.dmp

Filesize
120KB

Download
memory/3124-1-0x00000000005B0000-0x00000000005B1000-memory.dmp

Filesize
4KB

Download
memory/3124-0-0x0000000000400000-0x000000000041E000-memory.dmp

Filesize
120KB

Download
memory/3124-4-0x0000000002320000-0x0000000002D20000-memory.dmp

Filesize
10.0MB

Download
memory/3124-10-0x0000000002320000-0x0000000002D20000-memory.dmp

Filesize
10.0MB

Download
memory/3560-2-0x0000000000B50000-0x0000000000B56000-memory.dmp

Filesize
24KB

Download
memory/3560-6-0x00007FFC718ED000-0x00007FFC718EE000-memory.dmp

Filesize
4KB

Download
memory/3560-3-0x0000000000B50000-0x0000000000B56000-memory.dmp

Filesize
24KB

Download
memory/3992-7-0x00007FFC71850000-0x00007FFC71A45000-memory.dmp

Filesize
2.0MB

Download
memory/3992-5-0x0000000077BB2000-0x0000000077BB3000-memory.dmp

Filesize
4KB

Download
memory/3992-12-0x0000000000820000-0x0000000000826000-memory.dmp

Filesize
24KB

Download
memory/3992-15-0x0000000000820000-0x0000000000826000-memory.dmp

Filesize
24KB

Download