tinba | ea4df1bb1b61b7643a0efbba9e3ec6780d6f57a40b0c691ca5fe0f5acc09f7cd

Analysis

max time kernel
105s
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
23-01-2025 05:39

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General

Target

ea4df1bb1b61b7643a0efbba9e3ec6780d6f57a40b0c691ca5fe0f5acc09f7cdN.exe
Size

110KB
MD5

5a71b8ec4913df1b1a964e3a402bda60
SHA1

e823bd26912e5254cbf571fb31fb55fa94395577
SHA256

ea4df1bb1b61b7643a0efbba9e3ec6780d6f57a40b0c691ca5fe0f5acc09f7cd
SHA512

39b23ecaa40b19593eeeb6f96c66c97dfed3a7cf9c357246be812c7fded552319e5b72a20ae1e3b81d058167babe38107ccd1687251ddcaec22555547a7064d1
SSDEEP

1536:eiLOvRmmQegJfBbmAQ256/ZrwWnwqjhurmKFcxL8JQ2r0EA:eiyvRmDLs/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-1-5-21-4050598569-1597076380-177084960-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\CAF0BBB9 = "C:\\Users\\Admin\\AppData\\Roaming\\CAF0BBB9\\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/916-0-0x0000000000400000-0x000000000041E000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
4680	4400	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	ea4df1bb1b61b7643a0efbba9e3ec6780d6f57a40b0c691ca5fe0f5acc09f7cdN.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winver.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4400	winver.exe
4400	winver.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeShutdownPrivilege	3496	Explorer.EXE
Token: SeCreatePagefilePrivilege	3496	Explorer.EXE

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
4400	winver.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 916 wrote to memory of 4400	916	ea4df1bb1b61b7643a0efbba9e3ec6780d6f57a40b0c691ca5fe0f5acc09f7cdN.exe	83
PID 916 wrote to memory of 4400	916	ea4df1bb1b61b7643a0efbba9e3ec6780d6f57a40b0c691ca5fe0f5acc09f7cdN.exe	83
PID 916 wrote to memory of 4400	916	ea4df1bb1b61b7643a0efbba9e3ec6780d6f57a40b0c691ca5fe0f5acc09f7cdN.exe	83
PID 916 wrote to memory of 4400	916	ea4df1bb1b61b7643a0efbba9e3ec6780d6f57a40b0c691ca5fe0f5acc09f7cdN.exe	83
PID 4400 wrote to memory of 3496	4400	winver.exe	56
PID 4400 wrote to memory of 3020	4400	winver.exe	50

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
PID:3020

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3496
- C:\Users\Admin\AppData\Local\Temp\ea4df1bb1b61b7643a0efbba9e3ec6780d6f57a40b0c691ca5fe0f5acc09f7cdN.exe
  "C:\Users\Admin\AppData\Local\Temp\ea4df1bb1b61b7643a0efbba9e3ec6780d6f57a40b0c691ca5fe0f5acc09f7cdN.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:916
- - 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:4400
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4400 -s 352
      4⤵
      Program crash
      PID:4680

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4400 -ip 4400
1⤵
PID:3096

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/916-8-0x0000000000400000-0x000000000041E000-memory.dmp

Filesize
120KB

Download
memory/916-1-0x0000000000780000-0x0000000000781000-memory.dmp

Filesize
4KB

Download
memory/916-0-0x0000000000400000-0x000000000041E000-memory.dmp

Filesize
120KB

Download
memory/916-4-0x00000000021F0000-0x0000000002BF0000-memory.dmp

Filesize
10.0MB

Download
memory/916-9-0x00000000021F0000-0x0000000002BF0000-memory.dmp

Filesize
10.0MB

Download
memory/3020-13-0x0000000000520000-0x0000000000526000-memory.dmp

Filesize
24KB

Download
memory/3496-2-0x00000000006E0000-0x00000000006E6000-memory.dmp

Filesize
24KB

Download
memory/3496-6-0x00007FF85BCAD000-0x00007FF85BCAE000-memory.dmp

Filesize
4KB

Download
memory/3496-3-0x00000000006E0000-0x00000000006E6000-memory.dmp

Filesize
24KB

Download
memory/4400-7-0x00007FF85BC10000-0x00007FF85BE05000-memory.dmp

Filesize
2.0MB

Download
memory/4400-5-0x0000000077342000-0x0000000077343000-memory.dmp

Filesize
4KB

Download
memory/4400-11-0x0000000002D10000-0x0000000002D16000-memory.dmp

Filesize
24KB

Download
memory/4400-14-0x0000000002D10000-0x0000000002D16000-memory.dmp

Filesize
24KB

Download