tinba | f4a30653a4e49306ce7c6bd8140b35688bce6a3901ca83dc1331e6d4606d6377

Analysis

max time kernel
108s
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
02-12-2024 11:31

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General

Target

f4a30653a4e49306ce7c6bd8140b35688bce6a3901ca83dc1331e6d4606d6377N.exe
Size

45KB
MD5

b6f35fbe13d459d2b607e44dec0567a0
SHA1

9dfadb85a3594e9c404d4eb31965855eeb5f8872
SHA256

f4a30653a4e49306ce7c6bd8140b35688bce6a3901ca83dc1331e6d4606d6377
SHA512

892194c9ed6fdbc24d288cc8f05479d294fd8fb87d75b99be3267410f0eff0d94e45c01e6348c6d07f92f897cec741fb89ac5f5cb800c8455fc9267cf465b9d7
SSDEEP

768:9hP0kDE9N5dCA8J7VHXdrIniQaBTT+QQ+r1n4K8+C9TtIuCjaqUODvJVQ2f:/sWE9N5dFu53dsniQaB/xZ14n7zIF+qr

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\709BEBC2 = "C:\\Users\\Admin\\AppData\\Roaming\\709BEBC2\\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/4280-0-0x0000000000400000-0x000000000041D000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
3948	2276	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	f4a30653a4e49306ce7c6bd8140b35688bce6a3901ca83dc1331e6d4606d6377N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winver.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2276	winver.exe
2276	winver.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeShutdownPrivilege	3556	Explorer.EXE
Token: SeCreatePagefilePrivilege	3556	Explorer.EXE

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
2276	winver.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4280 wrote to memory of 2276	4280	f4a30653a4e49306ce7c6bd8140b35688bce6a3901ca83dc1331e6d4606d6377N.exe	84
PID 4280 wrote to memory of 2276	4280	f4a30653a4e49306ce7c6bd8140b35688bce6a3901ca83dc1331e6d4606d6377N.exe	84
PID 4280 wrote to memory of 2276	4280	f4a30653a4e49306ce7c6bd8140b35688bce6a3901ca83dc1331e6d4606d6377N.exe	84
PID 4280 wrote to memory of 2276	4280	f4a30653a4e49306ce7c6bd8140b35688bce6a3901ca83dc1331e6d4606d6377N.exe	84
PID 2276 wrote to memory of 3556	2276	winver.exe	56
PID 2276 wrote to memory of 2676	2276	winver.exe	44

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
PID:2676

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3556
- C:\Users\Admin\AppData\Local\Temp\f4a30653a4e49306ce7c6bd8140b35688bce6a3901ca83dc1331e6d4606d6377N.exe
  "C:\Users\Admin\AppData\Local\Temp\f4a30653a4e49306ce7c6bd8140b35688bce6a3901ca83dc1331e6d4606d6377N.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4280
- - 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:2276
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2276 -s 356
      4⤵
      Program crash
      PID:3948

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2276 -ip 2276
1⤵
PID:5084

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/2276-6-0x0000000077192000-0x0000000077193000-memory.dmp

Filesize
4KB

Download
memory/2276-16-0x0000000000880000-0x0000000000886000-memory.dmp

Filesize
24KB

Download
memory/2276-8-0x00007FFD83610000-0x00007FFD83805000-memory.dmp

Filesize
2.0MB

Download
memory/2276-5-0x0000000000880000-0x0000000000886000-memory.dmp

Filesize
24KB

Download
memory/2676-15-0x0000000000270000-0x0000000000276000-memory.dmp

Filesize
24KB

Download
memory/3556-2-0x0000000000C10000-0x0000000000C16000-memory.dmp

Filesize
24KB

Download
memory/3556-7-0x00007FFD836AD000-0x00007FFD836AE000-memory.dmp

Filesize
4KB

Download
memory/3556-3-0x0000000000C10000-0x0000000000C16000-memory.dmp

Filesize
24KB

Download
memory/4280-4-0x0000000002390000-0x0000000002D90000-memory.dmp

Filesize
10.0MB

Download
memory/4280-0-0x0000000000400000-0x000000000041D000-memory.dmp

Filesize
116KB

Download
memory/4280-10-0x0000000000400000-0x000000000041D000-memory.dmp

Filesize
116KB

Download
memory/4280-11-0x0000000002390000-0x0000000002D90000-memory.dmp

Filesize
10.0MB

Download
memory/4280-1-0x00000000005C0000-0x00000000005C1000-memory.dmp

Filesize
4KB

Download