tinba | bfb981fca6b5589e2491db74f957b0b86b9e62705b0cf599df8c3b5bcc7e4995

Analysis

max time kernel
107s
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
22-01-2025 13:36

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General

Target

bfb981fca6b5589e2491db74f957b0b86b9e62705b0cf599df8c3b5bcc7e4995.exe
Size

110KB
MD5

38ffee240d0ea1f35ca535d3b8f09aff
SHA1

8e1b08683ac45d3e2004307805b0cd2dfb9f8933
SHA256

bfb981fca6b5589e2491db74f957b0b86b9e62705b0cf599df8c3b5bcc7e4995
SHA512

cc6e128c6969f0c5e6839a4eb67deac48ed1e62f6239dc9e48aea19f3aeb09f7eca6413d86e2c56d6aeb9de5139e1544c54cb085e0be771b605b6229b9f15ad2
SSDEEP

1536:AiLOvRmmQegJfBbmAQ256/ZrwWnwqjhurmKFcxL8JQ2r0EQ:AiyvRmDLs/ZrwWJjAqGcRJ2hQ

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-1-5-21-3227495264-2217614367-4027411560-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\2FC5216D = "C:\\Users\\Admin\\AppData\\Roaming\\2FC5216D\\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/3160-0-0x0000000000400000-0x000000000041E000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
3672	872	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	bfb981fca6b5589e2491db74f957b0b86b9e62705b0cf599df8c3b5bcc7e4995.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winver.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
872	winver.exe
872	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
872	winver.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 3160 wrote to memory of 872	3160	bfb981fca6b5589e2491db74f957b0b86b9e62705b0cf599df8c3b5bcc7e4995.exe	83
PID 3160 wrote to memory of 872	3160	bfb981fca6b5589e2491db74f957b0b86b9e62705b0cf599df8c3b5bcc7e4995.exe	83
PID 3160 wrote to memory of 872	3160	bfb981fca6b5589e2491db74f957b0b86b9e62705b0cf599df8c3b5bcc7e4995.exe	83
PID 3160 wrote to memory of 872	3160	bfb981fca6b5589e2491db74f957b0b86b9e62705b0cf599df8c3b5bcc7e4995.exe	83
PID 872 wrote to memory of 3560	872	winver.exe	56
PID 872 wrote to memory of 2552	872	winver.exe	44

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
PID:2552

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3560
- C:\Users\Admin\AppData\Local\Temp\bfb981fca6b5589e2491db74f957b0b86b9e62705b0cf599df8c3b5bcc7e4995.exe
  "C:\Users\Admin\AppData\Local\Temp\bfb981fca6b5589e2491db74f957b0b86b9e62705b0cf599df8c3b5bcc7e4995.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3160
- - 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:872
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 872 -s 356
      4⤵
      Program crash
      PID:3672

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 376 -p 872 -ip 872
1⤵
PID:1108

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/872-5-0x0000000002910000-0x0000000002916000-memory.dmp

Filesize
24KB

Download
memory/872-7-0x00007FFD40070000-0x00007FFD40265000-memory.dmp

Filesize
2.0MB

Download
memory/872-14-0x0000000002910000-0x0000000002916000-memory.dmp

Filesize
24KB

Download
memory/2552-13-0x0000000000790000-0x0000000000796000-memory.dmp

Filesize
24KB

Download
memory/3160-0-0x0000000000400000-0x000000000041E000-memory.dmp

Filesize
120KB

Download
memory/3160-1-0x00000000005B0000-0x00000000005B1000-memory.dmp

Filesize
4KB

Download
memory/3160-4-0x0000000002300000-0x0000000002D00000-memory.dmp

Filesize
10.0MB

Download
memory/3160-8-0x0000000000400000-0x000000000041E000-memory.dmp

Filesize
120KB

Download
memory/3160-9-0x0000000002300000-0x0000000002D00000-memory.dmp

Filesize
10.0MB

Download
memory/3560-3-0x0000000000970000-0x0000000000976000-memory.dmp

Filesize
24KB

Download
memory/3560-2-0x0000000000970000-0x0000000000976000-memory.dmp

Filesize
24KB

Download
memory/3560-6-0x00007FFD4010D000-0x00007FFD4010E000-memory.dmp

Filesize
4KB

Download