tinba | 7ebdb56aa171dc73f4d79e80ec9dbb9d69abde3f2eaebcc32e77a969f8d75b7d

Analysis

max time kernel
136s
max time network
143s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
24/11/2024, 02:52

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General

Target
7ebdb56aa171dc73f4d79e80ec9dbb9d69abde3f2eaebcc32e77a969f8d75b7d.exe
Size 34KB
Sample241124-dczjqszraw
SHA256 7ebdb56aa171dc73f4d79e80ec9dbb9d69abde3f2eaebcc32e77a969f8d75b7d
MD5 d196696f808941349f8f497c8bd270c8
SHA1 46f71b080886008d86626586fc476852e5e8c8f0
SHA512 a9b4c20aa16bc934d83362b18d259207aa00de438004d62dd99d12d1d04d5738b17566fa578d95a43fab2a2716f2c634aab0c39ab874280f0a8e2d8920eeeffe
SSDEEP 768:Bp22qWFcy5XQ7lO41uirwA98p3MpkNBxd0cJWV6dy/x9Jm:BpYoX58z1uirL98xMWnT0OQ9Jm
MD5 SHA1 SHA512 SSDEEP

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-1-5-21-1045960512-3948844814-3059691613-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\E23FA7B7 = "C:\\Users\\Admin\\AppData\\Roaming\\E23FA7B7\\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/1468-0-0x0000000000400000-0x0000000000417000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1624	3260	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	7ebdb56aa171dc73f4d79e80ec9dbb9d69abde3f2eaebcc32e77a969f8d75b7d.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winver.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
3260	winver.exe
3260	winver.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeShutdownPrivilege	3392	Explorer.EXE
Token: SeCreatePagefilePrivilege	3392	Explorer.EXE

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
3260	winver.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 1468 wrote to memory of 3260	1468	7ebdb56aa171dc73f4d79e80ec9dbb9d69abde3f2eaebcc32e77a969f8d75b7d.exe	84
PID 1468 wrote to memory of 3260	1468	7ebdb56aa171dc73f4d79e80ec9dbb9d69abde3f2eaebcc32e77a969f8d75b7d.exe	84
PID 1468 wrote to memory of 3260	1468	7ebdb56aa171dc73f4d79e80ec9dbb9d69abde3f2eaebcc32e77a969f8d75b7d.exe	84
PID 1468 wrote to memory of 3260	1468	7ebdb56aa171dc73f4d79e80ec9dbb9d69abde3f2eaebcc32e77a969f8d75b7d.exe	84
PID 3260 wrote to memory of 3392	3260	winver.exe	56
PID 3260 wrote to memory of 2932	3260	winver.exe	50

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
PID:2932

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3392
- C:\Users\Admin\AppData\Local\Temp\7ebdb56aa171dc73f4d79e80ec9dbb9d69abde3f2eaebcc32e77a969f8d75b7d.exe
  "C:\Users\Admin\AppData\Local\Temp\7ebdb56aa171dc73f4d79e80ec9dbb9d69abde3f2eaebcc32e77a969f8d75b7d.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1468
- - 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:3260
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3260 -s 352
      4⤵
      Program crash
      PID:1624

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 428 -p 3260 -ip 3260
1⤵
PID:4928

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

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Downloads

memory/1468-9-0x0000000002370000-0x0000000002D70000-memory.dmp

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memory/1468-1-0x00000000005B0000-0x00000000005B1000-memory.dmp

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memory/1468-4-0x0000000002370000-0x0000000002D70000-memory.dmp

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memory/1468-8-0x0000000000400000-0x0000000000417000-memory.dmp

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memory/1468-0-0x0000000000400000-0x0000000000417000-memory.dmp

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memory/2932-13-0x00000000006D0000-0x00000000006D6000-memory.dmp

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memory/3260-7-0x00007FFC99CB0000-0x00007FFC99EA5000-memory.dmp

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memory/3260-5-0x0000000077322000-0x0000000077323000-memory.dmp

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memory/3260-11-0x0000000000F60000-0x0000000000F66000-memory.dmp

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memory/3260-14-0x0000000000F60000-0x0000000000F66000-memory.dmp

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memory/3392-2-0x00000000007D0000-0x00000000007D6000-memory.dmp

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memory/3392-3-0x00000000007D0000-0x00000000007D6000-memory.dmp

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memory/3392-6-0x00007FFC99D4D000-0x00007FFC99D4E000-memory.dmp

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