tinba | 3c7c2e1c3613a610e2bafde449e9e6f6d7cfa9c8dc4cf195e0f4303721f0f9f1

Analysis

max time kernel
120s
max time network
96s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
07-12-2024 05:35

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General

Target

3c7c2e1c3613a610e2bafde449e9e6f6d7cfa9c8dc4cf195e0f4303721f0f9f1.exe
Size

34KB
MD5

6eb9103146ab04033c2b4d245f2e5f72
SHA1

564f0f68e9073eb0e5657348257a8d639a70c04c
SHA256

3c7c2e1c3613a610e2bafde449e9e6f6d7cfa9c8dc4cf195e0f4303721f0f9f1
SHA512

8c96ec2d381506a27caac1ab805ed821fde431dfddad5fe29014c2f7989db56f52cf4ed7f79e433fd1cad5047751a1252a1259a95479956c21fbd9dd4a72ecfb
SSDEEP

768:ip22qWFcy5XQ7lO41uirwA98p3MpkNBxd0cJWV6dy/x9Ji:ipYoX58z1uirL98xMWnT0OQ9Ji

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-1-5-21-940901362-3608833189-1915618603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\AE003971 = "C:\\Users\\Admin\\AppData\\Roaming\\AE003971\\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/4392-0-0x0000000000400000-0x0000000000417000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
4020	2500	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	3c7c2e1c3613a610e2bafde449e9e6f6d7cfa9c8dc4cf195e0f4303721f0f9f1.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winver.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2500	winver.exe
2500	winver.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeShutdownPrivilege	3544	Explorer.EXE
Token: SeCreatePagefilePrivilege	3544	Explorer.EXE

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
2500	winver.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4392 wrote to memory of 2500	4392	3c7c2e1c3613a610e2bafde449e9e6f6d7cfa9c8dc4cf195e0f4303721f0f9f1.exe	84
PID 4392 wrote to memory of 2500	4392	3c7c2e1c3613a610e2bafde449e9e6f6d7cfa9c8dc4cf195e0f4303721f0f9f1.exe	84
PID 4392 wrote to memory of 2500	4392	3c7c2e1c3613a610e2bafde449e9e6f6d7cfa9c8dc4cf195e0f4303721f0f9f1.exe	84
PID 4392 wrote to memory of 2500	4392	3c7c2e1c3613a610e2bafde449e9e6f6d7cfa9c8dc4cf195e0f4303721f0f9f1.exe	84
PID 2500 wrote to memory of 3544	2500	winver.exe	56
PID 2500 wrote to memory of 2596	2500	winver.exe	44

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
PID:2596

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3544
- C:\Users\Admin\AppData\Local\Temp\3c7c2e1c3613a610e2bafde449e9e6f6d7cfa9c8dc4cf195e0f4303721f0f9f1.exe
  "C:\Users\Admin\AppData\Local\Temp\3c7c2e1c3613a610e2bafde449e9e6f6d7cfa9c8dc4cf195e0f4303721f0f9f1.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4392
- - 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:2500
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2500 -s 352
      4⤵
      Program crash
      PID:4020

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 424 -p 2500 -ip 2500
1⤵
PID:1800

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/2500-5-0x0000000076F22000-0x0000000076F23000-memory.dmp

Filesize
4KB

Download
memory/2500-15-0x0000000001120000-0x0000000001126000-memory.dmp

Filesize
24KB

Download
memory/2500-12-0x0000000001120000-0x0000000001126000-memory.dmp

Filesize
24KB

Download
memory/2500-7-0x00007FF8A6110000-0x00007FF8A6305000-memory.dmp

Filesize
2.0MB

Download
memory/2596-14-0x0000000000F10000-0x0000000000F16000-memory.dmp

Filesize
24KB

Download
memory/3544-6-0x00007FF8A61AD000-0x00007FF8A61AE000-memory.dmp

Filesize
4KB

Download
memory/3544-3-0x0000000001350000-0x0000000001356000-memory.dmp

Filesize
24KB

Download
memory/3544-2-0x0000000001350000-0x0000000001356000-memory.dmp

Filesize
24KB

Download
memory/4392-0-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/4392-4-0x0000000002360000-0x0000000002D60000-memory.dmp

Filesize
10.0MB

Download
memory/4392-9-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/4392-10-0x0000000002360000-0x0000000002D60000-memory.dmp

Filesize
10.0MB

Download
memory/4392-1-0x00000000006C0000-0x00000000006C1000-memory.dmp

Filesize
4KB

Download