tinba | 550df88ef2c9fb5682f12c3c42eb6653e745f574694cffa4c2912ac225ed9a3c

Analysis

max time kernel
111s
max time network
94s
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, 05:02

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General

Target

550df88ef2c9fb5682f12c3c42eb6653e745f574694cffa4c2912ac225ed9a3c.exe
Size

110KB
MD5

802c728015f0ba041a380ba223f814b8
SHA1

0b16604a53f827ab8df99545524b6644c603205e
SHA256

550df88ef2c9fb5682f12c3c42eb6653e745f574694cffa4c2912ac225ed9a3c
SHA512

fa6832853f4b31a3ef7cbc7187ca8187041f070cbd095c91c3468971b2ee476c11652196909ad7fab280c992a8619a0101698cf98b5a12b9f9f98c16469ae24a
SSDEEP

1536:MiLOvRmmQegJfBbmAQ256/ZrwWnwqjhurmKFcxL8JQ2r0EQ:MiyvRmDLs/ZrwWJjAqGcRJ2hQ

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\3B754243 = "C:\\Users\\Admin\\AppData\\Roaming\\3B754243\\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/2252-0-0x0000000000400000-0x000000000041E000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
5084	1920	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	550df88ef2c9fb5682f12c3c42eb6653e745f574694cffa4c2912ac225ed9a3c.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winver.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1920	winver.exe
1920	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
1920	winver.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2252 wrote to memory of 1920	2252	550df88ef2c9fb5682f12c3c42eb6653e745f574694cffa4c2912ac225ed9a3c.exe	83
PID 2252 wrote to memory of 1920	2252	550df88ef2c9fb5682f12c3c42eb6653e745f574694cffa4c2912ac225ed9a3c.exe	83
PID 2252 wrote to memory of 1920	2252	550df88ef2c9fb5682f12c3c42eb6653e745f574694cffa4c2912ac225ed9a3c.exe	83
PID 2252 wrote to memory of 1920	2252	550df88ef2c9fb5682f12c3c42eb6653e745f574694cffa4c2912ac225ed9a3c.exe	83
PID 1920 wrote to memory of 3492	1920	winver.exe	56
PID 1920 wrote to memory of 2476	1920	winver.exe	43

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
PID:2476

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3492
- C:\Users\Admin\AppData\Local\Temp\550df88ef2c9fb5682f12c3c42eb6653e745f574694cffa4c2912ac225ed9a3c.exe
  "C:\Users\Admin\AppData\Local\Temp\550df88ef2c9fb5682f12c3c42eb6653e745f574694cffa4c2912ac225ed9a3c.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2252
- - 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:1920
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1920 -s 352
      4⤵
      Program crash
      PID:5084

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 368 -p 1920 -ip 1920
1⤵
PID:4792

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/1920-5-0x0000000002230000-0x0000000002236000-memory.dmp

Filesize
24KB

Download
memory/1920-15-0x0000000002230000-0x0000000002236000-memory.dmp

Filesize
24KB

Download
memory/1920-7-0x00007FFA46790000-0x00007FFA46985000-memory.dmp

Filesize
2.0MB

Download
memory/2252-9-0x0000000000400000-0x000000000041E000-memory.dmp

Filesize
120KB

Download
memory/2252-4-0x0000000002360000-0x0000000002D60000-memory.dmp

Filesize
10.0MB

Download
memory/2252-0-0x0000000000400000-0x000000000041E000-memory.dmp

Filesize
120KB

Download
memory/2252-10-0x0000000002360000-0x0000000002D60000-memory.dmp

Filesize
10.0MB

Download
memory/2252-1-0x0000000002160000-0x0000000002161000-memory.dmp

Filesize
4KB

Download
memory/2476-14-0x00000000009F0000-0x00000000009F6000-memory.dmp

Filesize
24KB

Download
memory/2476-16-0x00000000009F0000-0x00000000009F6000-memory.dmp

Filesize
24KB

Download
memory/3492-6-0x00007FFA4682D000-0x00007FFA4682E000-memory.dmp

Filesize
4KB

Download
memory/3492-2-0x0000000001000000-0x0000000001006000-memory.dmp

Filesize
24KB

Download
memory/3492-3-0x0000000001000000-0x0000000001006000-memory.dmp

Filesize
24KB

Download
memory/3492-8-0x00007FFA4682C000-0x00007FFA4682D000-memory.dmp

Filesize
4KB

Download