tinba | cd4f3c1f36c4d33b56d7687a21a2e2d55d87eb808d831a90113fd0234dbb399c

Analysis

max time kernel
114s
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
29-11-2024 13:17

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General

Target

cd4f3c1f36c4d33b56d7687a21a2e2d55d87eb808d831a90113fd0234dbb399cN.exe
Size

89KB
MD5

ee9aaae16a648813d68848807e58a800
SHA1

5f2dc16bba2caf186dab306109be62692723a4a4
SHA256

cd4f3c1f36c4d33b56d7687a21a2e2d55d87eb808d831a90113fd0234dbb399c
SHA512

c702cb675fc23934ea62d70e0d11f23a8ef6c45f68a14faf142ddafdb3f8389a8c73e10d7a572dbd870b780bde76a68baff1707736669dd8083646e3cadf60d2
SSDEEP

1536:91+mFM2HXKZgixhIksu+XM5/HtAQ9Jox7K:f+4MJIkLZJNAQ9Jo9K

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-1-5-21-4089630652-1596403869-279772308-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\E326CD13 = "C:\\Users\\Admin\\AppData\\Roaming\\E326CD13\\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/1448-0-0x0000000000400000-0x0000000000418000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
4200	3092	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	cd4f3c1f36c4d33b56d7687a21a2e2d55d87eb808d831a90113fd0234dbb399cN.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winver.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
3092	winver.exe
3092	winver.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeShutdownPrivilege	3444	Explorer.EXE
Token: SeCreatePagefilePrivilege	3444	Explorer.EXE

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
3092	winver.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 1448 wrote to memory of 3092	1448	cd4f3c1f36c4d33b56d7687a21a2e2d55d87eb808d831a90113fd0234dbb399cN.exe	83
PID 1448 wrote to memory of 3092	1448	cd4f3c1f36c4d33b56d7687a21a2e2d55d87eb808d831a90113fd0234dbb399cN.exe	83
PID 1448 wrote to memory of 3092	1448	cd4f3c1f36c4d33b56d7687a21a2e2d55d87eb808d831a90113fd0234dbb399cN.exe	83
PID 1448 wrote to memory of 3092	1448	cd4f3c1f36c4d33b56d7687a21a2e2d55d87eb808d831a90113fd0234dbb399cN.exe	83
PID 3092 wrote to memory of 3444	3092	winver.exe	56
PID 3092 wrote to memory of 2940	3092	winver.exe	49

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
PID:2940

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3444
- C:\Users\Admin\AppData\Local\Temp\cd4f3c1f36c4d33b56d7687a21a2e2d55d87eb808d831a90113fd0234dbb399cN.exe
  "C:\Users\Admin\AppData\Local\Temp\cd4f3c1f36c4d33b56d7687a21a2e2d55d87eb808d831a90113fd0234dbb399cN.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1448
- - 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:3092
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3092 -s 352
      4⤵
      Program crash
      PID:4200

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 3092 -ip 3092
1⤵
PID:4016

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/1448-0-0x0000000000400000-0x0000000000418000-memory.dmp

Filesize
96KB

Download
memory/1448-1-0x00000000006D0000-0x00000000006D1000-memory.dmp

Filesize
4KB

Download
memory/1448-10-0x00000000021B0000-0x0000000002BB0000-memory.dmp

Filesize
10.0MB

Download
memory/1448-4-0x00000000021B0000-0x0000000002BB0000-memory.dmp

Filesize
10.0MB

Download
memory/1448-9-0x0000000000400000-0x0000000000418000-memory.dmp

Filesize
96KB

Download
memory/2940-14-0x0000000000E40000-0x0000000000E46000-memory.dmp

Filesize
24KB

Download
memory/3092-6-0x0000000077902000-0x0000000077903000-memory.dmp

Filesize
4KB

Download
memory/3092-5-0x0000000002960000-0x0000000002966000-memory.dmp

Filesize
24KB

Download
memory/3092-8-0x00007FFF66610000-0x00007FFF66805000-memory.dmp

Filesize
2.0MB

Download
memory/3092-15-0x0000000002960000-0x0000000002966000-memory.dmp

Filesize
24KB

Download
memory/3444-7-0x00007FFF666AD000-0x00007FFF666AE000-memory.dmp

Filesize
4KB

Download
memory/3444-2-0x0000000000360000-0x0000000000366000-memory.dmp

Filesize
24KB

Download
memory/3444-3-0x0000000000360000-0x0000000000366000-memory.dmp

Filesize
24KB

Download