tinba | 46f871a1538640d330b86d54fc322fdeae856f0cb40b564e2c6bfb171c416046

Analysis

max time kernel
109s
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
13/01/2025, 12:26

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General

Target
46f871a1538640d330b86d54fc322fdeae856f0cb40b564e2c6bfb171c416046.exe
Size 45KB
Sample250113-pmjrtatrcp
SHA256 46f871a1538640d330b86d54fc322fdeae856f0cb40b564e2c6bfb171c416046
MD5 0e3ee76f90651313afc91d7e0f569fc1
SHA1 7a8404ea7233e814676f821e3a082b737f6f06ed
SHA512 fa0c71879cec9556efc16c1d44e10fd972d02fe0de787f7dc48941c1ebe3ebfc48b85794be79a3850b1ea15ec6f7b758fb0bd4e3cf2fbb50275dbd822c9531da
SSDEEP 768:EhP0kDE9N5dCA8J7VHXdrIniQaBTT+QQ+r1n4K8+C9TtIuCjaqUODvJVQ2V:osWE9N5dFu53dsniQaB/xZ14n7zIF+q5
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-1-5-21-3756129449-3121373848-4276368241-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\7C04C790 = "C:\\Users\\Admin\\AppData\\Roaming\\7C04C790\\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/880-0-0x0000000000400000-0x000000000041D000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
872	4940	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	46f871a1538640d330b86d54fc322fdeae856f0cb40b564e2c6bfb171c416046.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winver.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4940	winver.exe
4940	winver.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeShutdownPrivilege	3492	Explorer.EXE
Token: SeCreatePagefilePrivilege	3492	Explorer.EXE

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
4940	winver.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 880 wrote to memory of 4940	880	46f871a1538640d330b86d54fc322fdeae856f0cb40b564e2c6bfb171c416046.exe	83
PID 880 wrote to memory of 4940	880	46f871a1538640d330b86d54fc322fdeae856f0cb40b564e2c6bfb171c416046.exe	83
PID 880 wrote to memory of 4940	880	46f871a1538640d330b86d54fc322fdeae856f0cb40b564e2c6bfb171c416046.exe	83
PID 880 wrote to memory of 4940	880	46f871a1538640d330b86d54fc322fdeae856f0cb40b564e2c6bfb171c416046.exe	83
PID 4940 wrote to memory of 3492	4940	winver.exe	56
PID 4940 wrote to memory of 2988	4940	winver.exe	50

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
PID:2988

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3492
- C:\Users\Admin\AppData\Local\Temp\46f871a1538640d330b86d54fc322fdeae856f0cb40b564e2c6bfb171c416046.exe
  "C:\Users\Admin\AppData\Local\Temp\46f871a1538640d330b86d54fc322fdeae856f0cb40b564e2c6bfb171c416046.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:880
- - 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:4940
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4940 -s 352
      4⤵
      Program crash
      PID:872

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 4940 -ip 4940
1⤵
PID:4756

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/880-4-0x0000000002220000-0x0000000002C20000-memory.dmp

Download

memory/880-1-0x00000000005E0000-0x00000000005E1000-memory.dmp

Download

memory/880-0-0x0000000000400000-0x000000000041D000-memory.dmp

Download

memory/880-10-0x0000000002220000-0x0000000002C20000-memory.dmp

Download

memory/880-9-0x0000000000400000-0x000000000041D000-memory.dmp

Download

memory/2988-14-0x00000000004D0000-0x00000000004D6000-memory.dmp

Download

memory/3492-3-0x0000000000750000-0x0000000000756000-memory.dmp

Download

memory/3492-6-0x00007FFD1B28D000-0x00007FFD1B28E000-memory.dmp

Download

memory/3492-7-0x00007FFD1B28C000-0x00007FFD1B28D000-memory.dmp

Download

memory/3492-2-0x0000000000750000-0x0000000000756000-memory.dmp

Download

memory/4940-5-0x0000000077BD2000-0x0000000077BD3000-memory.dmp

Download

memory/4940-8-0x00007FFD1B1F0000-0x00007FFD1B3E5000-memory.dmp

Download

memory/4940-12-0x0000000000760000-0x0000000000766000-memory.dmp

Download

memory/4940-15-0x0000000000760000-0x0000000000766000-memory.dmp

Download