tinba | b7011492a83c25e22c0b211860ca8374c8cc3fccec348e95866b5eca37466f79

Analysis

max time kernel
119s
max time network
120s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
26-12-2024 17:07

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General

Target

b7011492a83c25e22c0b211860ca8374c8cc3fccec348e95866b5eca37466f79N.exe
Size

45KB
MD5

7f1ea59eab505ebf0befc0e4510b9ab0
SHA1

a6899b3c3891c14bb1fa2568a36b3f2de6f88632
SHA256

b7011492a83c25e22c0b211860ca8374c8cc3fccec348e95866b5eca37466f79
SHA512

ceb57cfbf318f2546f39ba0e9a5edc7bc82454bd573c8aafd8488ea18dae84abbe03f7ea09af432351c7bb270284ea90994a88e214fac61d77d000bb1c05a231
SSDEEP

768:MhP0kDE9N5dCA8J7VHXdrIniQaBTT+QQ+r1n4K8+C9TtIuCjaqUODvJVQ2P:gsWE9N5dFu53dsniQaB/xZ14n7zIF+q7

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-1-5-21-2878641211-696417878-3864914810-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\2CB96BD8 = "C:\\Users\\Admin\\AppData\\Roaming\\2CB96BD8\\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/540-0-0x0000000000400000-0x000000000041D000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
4092	3468	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	b7011492a83c25e22c0b211860ca8374c8cc3fccec348e95866b5eca37466f79N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winver.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
3468	winver.exe
3468	winver.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeShutdownPrivilege	3412	Explorer.EXE
Token: SeCreatePagefilePrivilege	3412	Explorer.EXE

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
3468	winver.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 540 wrote to memory of 3468	540	b7011492a83c25e22c0b211860ca8374c8cc3fccec348e95866b5eca37466f79N.exe	84
PID 540 wrote to memory of 3468	540	b7011492a83c25e22c0b211860ca8374c8cc3fccec348e95866b5eca37466f79N.exe	84
PID 540 wrote to memory of 3468	540	b7011492a83c25e22c0b211860ca8374c8cc3fccec348e95866b5eca37466f79N.exe	84
PID 540 wrote to memory of 3468	540	b7011492a83c25e22c0b211860ca8374c8cc3fccec348e95866b5eca37466f79N.exe	84
PID 3468 wrote to memory of 3412	3468	winver.exe	56
PID 3468 wrote to memory of 2964	3468	winver.exe	49

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
PID:2964

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3412
- C:\Users\Admin\AppData\Local\Temp\b7011492a83c25e22c0b211860ca8374c8cc3fccec348e95866b5eca37466f79N.exe
  "C:\Users\Admin\AppData\Local\Temp\b7011492a83c25e22c0b211860ca8374c8cc3fccec348e95866b5eca37466f79N.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:540
- - 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:3468
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3468 -s 352
      4⤵
      Program crash
      PID:4092

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3468 -ip 3468
1⤵
PID:432

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/540-8-0x0000000000400000-0x000000000041D000-memory.dmp

Filesize
116KB

Download
memory/540-1-0x00000000004A0000-0x00000000004A1000-memory.dmp

Filesize
4KB

Download
memory/540-0-0x0000000000400000-0x000000000041D000-memory.dmp

Filesize
116KB

Download
memory/540-4-0x0000000002120000-0x0000000002B20000-memory.dmp

Filesize
10.0MB

Download
memory/540-9-0x0000000002120000-0x0000000002B20000-memory.dmp

Filesize
10.0MB

Download
memory/2964-13-0x0000000000920000-0x0000000000926000-memory.dmp

Filesize
24KB

Download
memory/3412-3-0x0000000002320000-0x0000000002326000-memory.dmp

Filesize
24KB

Download
memory/3412-6-0x00007FFAF81AD000-0x00007FFAF81AE000-memory.dmp

Filesize
4KB

Download
memory/3412-2-0x0000000002320000-0x0000000002326000-memory.dmp

Filesize
24KB

Download
memory/3468-7-0x00007FFAF8110000-0x00007FFAF8305000-memory.dmp

Filesize
2.0MB

Download
memory/3468-5-0x00000000776E2000-0x00000000776E3000-memory.dmp

Filesize
4KB

Download
memory/3468-11-0x0000000000790000-0x0000000000796000-memory.dmp

Filesize
24KB

Download
memory/3468-14-0x0000000000790000-0x0000000000796000-memory.dmp

Filesize
24KB

Download