tinba | b7a29453c68f999d5895f72eb59541a974819d77f5cb9a415d6dfb6d23fb64ad

Analysis

max time kernel
110s
max time network
95s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
30-11-2024 00:04

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General

Target

b7a29453c68f999d5895f72eb59541a974819d77f5cb9a415d6dfb6d23fb64adN.exe
Size

59KB
MD5

efd51be30756bcd7311838833ba1c4f0
SHA1

6026dd0b9495e03cefcc434d0d79963291322f33
SHA256

b7a29453c68f999d5895f72eb59541a974819d77f5cb9a415d6dfb6d23fb64ad
SHA512

5f3454597629e76ab35153e9ed7a146346ee3e6358fc781d3fbcd2f100bc24c3ad8689528261e34101bf4d6b5391ddc49f6c78ddd8053617c990ddff5c884663
SSDEEP

768:b+6p+OMlgGMCWhfDzU7f7JDgiFP7xI57+sByZ+XsfXpwtGc9J1:b+mFM2HXKZgiFP7xIksu+XM5O9J1

Score

10^/10

tinba banker discovery persistence trojan

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-1-5-21-2878641211-696417878-3864914810-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\B0F5C4CA = "C:\\Users\\Admin\\AppData\\Roaming\\B0F5C4CA\\bin.exe"	winver.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1856	4784	WerFault.exe	84

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	winver.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	b7a29453c68f999d5895f72eb59541a974819d77f5cb9a415d6dfb6d23fb64adN.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4784	winver.exe
4784	winver.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeShutdownPrivilege	3584	Explorer.EXE
Token: SeCreatePagefilePrivilege	3584	Explorer.EXE

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
4784	winver.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 3604 wrote to memory of 4784	3604	b7a29453c68f999d5895f72eb59541a974819d77f5cb9a415d6dfb6d23fb64adN.exe	84
PID 3604 wrote to memory of 4784	3604	b7a29453c68f999d5895f72eb59541a974819d77f5cb9a415d6dfb6d23fb64adN.exe	84
PID 3604 wrote to memory of 4784	3604	b7a29453c68f999d5895f72eb59541a974819d77f5cb9a415d6dfb6d23fb64adN.exe	84
PID 3604 wrote to memory of 4784	3604	b7a29453c68f999d5895f72eb59541a974819d77f5cb9a415d6dfb6d23fb64adN.exe	84
PID 4784 wrote to memory of 3584	4784	winver.exe	56
PID 4784 wrote to memory of 2616	4784	winver.exe	44

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
PID:2616

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3584
- C:\Users\Admin\AppData\Local\Temp\b7a29453c68f999d5895f72eb59541a974819d77f5cb9a415d6dfb6d23fb64adN.exe
  "C:\Users\Admin\AppData\Local\Temp\b7a29453c68f999d5895f72eb59541a974819d77f5cb9a415d6dfb6d23fb64adN.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3604
- - 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:4784
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4784 -s 352
      4⤵
      Program crash
      PID:1856

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 4784 -ip 4784
1⤵
PID:3956

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/2616-12-0x00000000001F0000-0x00000000001F6000-memory.dmp

Filesize
24KB

Download
memory/3584-2-0x0000000000940000-0x0000000000946000-memory.dmp

Filesize
24KB

Download
memory/3584-1-0x0000000000940000-0x0000000000946000-memory.dmp

Filesize
24KB

Download
memory/3584-5-0x00007FFBD356D000-0x00007FFBD356E000-memory.dmp

Filesize
4KB

Download
memory/3604-0-0x0000000002160000-0x0000000002161000-memory.dmp

Filesize
4KB

Download
memory/3604-3-0x0000000002280000-0x0000000002C80000-memory.dmp

Filesize
10.0MB

Download
memory/3604-7-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3604-8-0x0000000002280000-0x0000000002C80000-memory.dmp

Filesize
10.0MB

Download
memory/4784-4-0x0000000077CB2000-0x0000000077CB3000-memory.dmp

Filesize
4KB

Download
memory/4784-6-0x00007FFBD34D0000-0x00007FFBD36C5000-memory.dmp

Filesize
2.0MB

Download
memory/4784-10-0x00000000004A0000-0x00000000004A6000-memory.dmp

Filesize
24KB

Download
memory/4784-13-0x00000000004A0000-0x00000000004A6000-memory.dmp

Filesize
24KB

Download