tinba | 658a0c326235f23431f130766e1fbde76caa857c5ccc2720617deed53e39b8b8

Analysis

max time kernel
107s
max time network
95s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
02-10-2024 01:21

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General

Target

658a0c326235f23431f130766e1fbde76caa857c5ccc2720617deed53e39b8b8N.exe
Size

160KB
MD5

002748c16a03811c0a4268239394be70
SHA1

722eb218cd45bcd241c1fc28305d61efde9544e3
SHA256

658a0c326235f23431f130766e1fbde76caa857c5ccc2720617deed53e39b8b8
SHA512

11a6df24b8818a69b8b90cc38f3c654450cfd3f23f997a35e42dda774cce48f73888b85f05556b53625f65699aa7ace0ffd546ab4e259a679b8aff0877bd96f5
SSDEEP

1536:gEY+mFM2HXKZgi0Iksu+XM5/HtAQ9J6xph:TY+4MiIkLZJNAQ9J6v

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

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-1-5-21-523280732-2327480845-3730041215-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\FF8B6A34 = "C:\\Users\\Admin\\AppData\\Roaming\\FF8B6A34\\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/3568-0-0x0000000000400000-0x0000000000428000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2792	3520	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	658a0c326235f23431f130766e1fbde76caa857c5ccc2720617deed53e39b8b8N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winver.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
3520	winver.exe
3520	winver.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeShutdownPrivilege	3472	Explorer.EXE
Token: SeCreatePagefilePrivilege	3472	Explorer.EXE

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
3520	winver.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 3568 wrote to memory of 3520	3568	658a0c326235f23431f130766e1fbde76caa857c5ccc2720617deed53e39b8b8N.exe	83
PID 3568 wrote to memory of 3520	3568	658a0c326235f23431f130766e1fbde76caa857c5ccc2720617deed53e39b8b8N.exe	83
PID 3568 wrote to memory of 3520	3568	658a0c326235f23431f130766e1fbde76caa857c5ccc2720617deed53e39b8b8N.exe	83
PID 3568 wrote to memory of 3520	3568	658a0c326235f23431f130766e1fbde76caa857c5ccc2720617deed53e39b8b8N.exe	83
PID 3520 wrote to memory of 3472	3520	winver.exe	56
PID 3520 wrote to memory of 2704	3520	winver.exe	47

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
PID:2704

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3472
- C:\Users\Admin\AppData\Local\Temp\658a0c326235f23431f130766e1fbde76caa857c5ccc2720617deed53e39b8b8N.exe
  "C:\Users\Admin\AppData\Local\Temp\658a0c326235f23431f130766e1fbde76caa857c5ccc2720617deed53e39b8b8N.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3568
- - 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:3520
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3520 -s 352
      4⤵
      Program crash
      PID:2792

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 204 -p 3520 -ip 3520
1⤵
PID:3480

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/2704-13-0x0000000000670000-0x0000000000676000-memory.dmp

Filesize
24KB

Download
memory/3472-6-0x00007FFDB7C2D000-0x00007FFDB7C2E000-memory.dmp

Filesize
4KB

Download
memory/3472-3-0x0000000000770000-0x0000000000776000-memory.dmp

Filesize
24KB

Download
memory/3472-2-0x0000000000770000-0x0000000000776000-memory.dmp

Filesize
24KB

Download
memory/3520-5-0x0000000077612000-0x0000000077613000-memory.dmp

Filesize
4KB

Download
memory/3520-7-0x00007FFDB7B90000-0x00007FFDB7D85000-memory.dmp

Filesize
2.0MB

Download
memory/3520-11-0x0000000002930000-0x0000000002936000-memory.dmp

Filesize
24KB

Download
memory/3520-14-0x0000000002930000-0x0000000002936000-memory.dmp

Filesize
24KB

Download
memory/3568-4-0x00000000021B0000-0x0000000002BB0000-memory.dmp

Filesize
10.0MB

Download
memory/3568-0-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download
memory/3568-8-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download
memory/3568-9-0x00000000021B0000-0x0000000002BB0000-memory.dmp

Filesize
10.0MB

Download
memory/3568-1-0x0000000002160000-0x0000000002161000-memory.dmp

Filesize
4KB

Download