tinba | 39d4c50debb7477ee5026d13f99d54ae565f075c242ffe044244c855e6bd6210

Analysis

max time kernel
110s
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
21-01-2025 05:50

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General

Target

39d4c50debb7477ee5026d13f99d54ae565f075c242ffe044244c855e6bd6210N.exe
Size

110KB
MD5

51604e0745f10875e3660ef3390fb6b0
SHA1

9488614a9a3df9fdcbe891053d67f83851c95186
SHA256

39d4c50debb7477ee5026d13f99d54ae565f075c242ffe044244c855e6bd6210
SHA512

2225b2be1a2ebc536e0f117768f2a436f3826d7968fc01dd346403d0e8a5001152347020fa779155abd8b34623ea2fdbdc67f6b08619abca675ed46c0aec2737
SSDEEP

1536:tiLOvRmmQegJfBbmAQ256/ZrwWnwqjhurmKFcxL8JQ2r0EA:tiyvRmDLs/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-1-5-21-3756129449-3121373848-4276368241-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\E945309E = "C:\\Users\\Admin\\AppData\\Roaming\\E945309E\\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/3196-0-0x0000000000400000-0x000000000041E000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
3936	4632	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	39d4c50debb7477ee5026d13f99d54ae565f075c242ffe044244c855e6bd6210N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winver.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4632	winver.exe
4632	winver.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeShutdownPrivilege	3408	Explorer.EXE
Token: SeCreatePagefilePrivilege	3408	Explorer.EXE

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
4632	winver.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 3196 wrote to memory of 4632	3196	39d4c50debb7477ee5026d13f99d54ae565f075c242ffe044244c855e6bd6210N.exe	85
PID 3196 wrote to memory of 4632	3196	39d4c50debb7477ee5026d13f99d54ae565f075c242ffe044244c855e6bd6210N.exe	85
PID 3196 wrote to memory of 4632	3196	39d4c50debb7477ee5026d13f99d54ae565f075c242ffe044244c855e6bd6210N.exe	85
PID 3196 wrote to memory of 4632	3196	39d4c50debb7477ee5026d13f99d54ae565f075c242ffe044244c855e6bd6210N.exe	85
PID 4632 wrote to memory of 3408	4632	winver.exe	56
PID 4632 wrote to memory of 2660	4632	winver.exe	51

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

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3408
- C:\Users\Admin\AppData\Local\Temp\39d4c50debb7477ee5026d13f99d54ae565f075c242ffe044244c855e6bd6210N.exe
  "C:\Users\Admin\AppData\Local\Temp\39d4c50debb7477ee5026d13f99d54ae565f075c242ffe044244c855e6bd6210N.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3196
- - 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:4632
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4632 -s 352
      4⤵
      Program crash
      PID:3936

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4632 -ip 4632
1⤵
PID:4380

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/2660-14-0x0000000000440000-0x0000000000446000-memory.dmp

Filesize
24KB

Download
memory/3196-9-0x0000000000400000-0x000000000041E000-memory.dmp

Filesize
120KB

Download
memory/3196-1-0x00000000006C0000-0x00000000006C1000-memory.dmp

Filesize
4KB

Download
memory/3196-0-0x0000000000400000-0x000000000041E000-memory.dmp

Filesize
120KB

Download
memory/3196-4-0x0000000002300000-0x0000000002D00000-memory.dmp

Filesize
10.0MB

Download
memory/3196-10-0x0000000002300000-0x0000000002D00000-memory.dmp

Filesize
10.0MB

Download
memory/3408-2-0x0000000000F40000-0x0000000000F46000-memory.dmp

Filesize
24KB

Download
memory/3408-6-0x00007FFB526AD000-0x00007FFB526AE000-memory.dmp

Filesize
4KB

Download
memory/3408-3-0x0000000000F40000-0x0000000000F46000-memory.dmp

Filesize
24KB

Download
memory/4632-7-0x00007FFB52610000-0x00007FFB52805000-memory.dmp

Filesize
2.0MB

Download
memory/4632-5-0x0000000076F42000-0x0000000076F43000-memory.dmp

Filesize
4KB

Download
memory/4632-12-0x0000000002970000-0x0000000002976000-memory.dmp

Filesize
24KB

Download
memory/4632-15-0x0000000002970000-0x0000000002976000-memory.dmp

Filesize
24KB

Download