tinba | b4c610f2eeb41b9f8945cf9d88da22a43c8fbcf210ea3b5bd6df3bdb581703a0

Analysis

max time kernel
118s
max time network
99s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
20-11-2024 23:29

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General

Target

b4c610f2eeb41b9f8945cf9d88da22a43c8fbcf210ea3b5bd6df3bdb581703a0.exe
Size

88KB
MD5

194bc1422ec551471da7087d7b67acf2
SHA1

9e6c6723fc94e994b9198580f80da7841682dc35
SHA256

b4c610f2eeb41b9f8945cf9d88da22a43c8fbcf210ea3b5bd6df3bdb581703a0
SHA512

582700a86feceeaa586b17a4de021a38844c61d966a33619dbf48d2fb746879c20f60616b3dee6f83977808825ef548a4b69651f5357a3a7b9794c09fc8e902b
SSDEEP

1536:y5nfmIpxDWbUfd3aOPmxxEhvgCooXqRQqjh+rmKVsNI:y5fvp12UFKcD/6jwqWsNI

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-1-5-21-3442511616-637977696-3186306149-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\9441A381 = "C:\\Users\\Admin\\AppData\\Roaming\\9441A381\\bin.exe"	winver.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
4936	4900	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	b4c610f2eeb41b9f8945cf9d88da22a43c8fbcf210ea3b5bd6df3bdb581703a0.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winver.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4900	winver.exe
4900	winver.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeShutdownPrivilege	3428	Explorer.EXE
Token: SeCreatePagefilePrivilege	3428	Explorer.EXE

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
4900	winver.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2876 wrote to memory of 4900	2876	b4c610f2eeb41b9f8945cf9d88da22a43c8fbcf210ea3b5bd6df3bdb581703a0.exe	83
PID 2876 wrote to memory of 4900	2876	b4c610f2eeb41b9f8945cf9d88da22a43c8fbcf210ea3b5bd6df3bdb581703a0.exe	83
PID 2876 wrote to memory of 4900	2876	b4c610f2eeb41b9f8945cf9d88da22a43c8fbcf210ea3b5bd6df3bdb581703a0.exe	83
PID 2876 wrote to memory of 4900	2876	b4c610f2eeb41b9f8945cf9d88da22a43c8fbcf210ea3b5bd6df3bdb581703a0.exe	83
PID 4900 wrote to memory of 3428	4900	winver.exe	56
PID 4900 wrote to memory of 2620	4900	winver.exe	44

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
PID:2620

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3428
- C:\Users\Admin\AppData\Local\Temp\b4c610f2eeb41b9f8945cf9d88da22a43c8fbcf210ea3b5bd6df3bdb581703a0.exe
  "C:\Users\Admin\AppData\Local\Temp\b4c610f2eeb41b9f8945cf9d88da22a43c8fbcf210ea3b5bd6df3bdb581703a0.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2876
- - 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:4900
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4900 -s 352
      4⤵
      Program crash
      PID:4936

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 4900 -ip 4900
1⤵
PID:2592

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/2620-12-0x00000000001B0000-0x00000000001B6000-memory.dmp

Filesize
24KB

Download
memory/2876-0-0x00000000005C0000-0x00000000005C1000-memory.dmp

Filesize
4KB

Download
memory/2876-3-0x0000000002310000-0x0000000002D10000-memory.dmp

Filesize
10.0MB

Download
memory/2876-7-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2876-8-0x0000000002310000-0x0000000002D10000-memory.dmp

Filesize
10.0MB

Download
memory/3428-2-0x0000000000AD0000-0x0000000000AD6000-memory.dmp

Filesize
24KB

Download
memory/3428-1-0x0000000000AD0000-0x0000000000AD6000-memory.dmp

Filesize
24KB

Download
memory/3428-5-0x00007FFA7C9CD000-0x00007FFA7C9CE000-memory.dmp

Filesize
4KB

Download
memory/4900-4-0x00000000777B2000-0x00000000777B3000-memory.dmp

Filesize
4KB

Download
memory/4900-6-0x00007FFA7C930000-0x00007FFA7CB25000-memory.dmp

Filesize
2.0MB

Download
memory/4900-10-0x0000000002D60000-0x0000000002D66000-memory.dmp

Filesize
24KB

Download
memory/4900-13-0x0000000002D60000-0x0000000002D66000-memory.dmp

Filesize
24KB

Download