tinba | 1df5981e95ac261d6a4b29b93bcd317277d7766a525ea95975e6efc6e9862794

Analysis

max time kernel
113s
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
05-12-2024 06:55

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General

Target

1df5981e95ac261d6a4b29b93bcd317277d7766a525ea95975e6efc6e9862794N.exe
Size

110KB
MD5

0616b40e7f50370482eb120f618d88b0
SHA1

5dfbc70cfd295d6efaec215b0a67eff0f93a84e9
SHA256

1df5981e95ac261d6a4b29b93bcd317277d7766a525ea95975e6efc6e9862794
SHA512

81d4fbdb134d38f14e83c24db4a547ff21c04d784517d75cee4097d52b7666b194f0b3f6a20d9ce66397e23c838bfacf5a708130c6722971470121cadd22abf5
SSDEEP

1536:GiLOvRmmQegJfBbmAQ256/ZrwWnwqjhurmKFcxL8JQ2r0Eg:GiyvRmDLs/ZrwWJjAqGcRJ2hg

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-1-5-21-4050598569-1597076380-177084960-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\AC4AE1FC = "C:\\Users\\Admin\\AppData\\Roaming\\AC4AE1FC\\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/1884-0-0x0000000000400000-0x000000000041E000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2160	116	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	1df5981e95ac261d6a4b29b93bcd317277d7766a525ea95975e6efc6e9862794N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winver.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
116	winver.exe
116	winver.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeShutdownPrivilege	3448	Explorer.EXE
Token: SeCreatePagefilePrivilege	3448	Explorer.EXE

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
116	winver.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 1884 wrote to memory of 116	1884	1df5981e95ac261d6a4b29b93bcd317277d7766a525ea95975e6efc6e9862794N.exe	83
PID 1884 wrote to memory of 116	1884	1df5981e95ac261d6a4b29b93bcd317277d7766a525ea95975e6efc6e9862794N.exe	83
PID 1884 wrote to memory of 116	1884	1df5981e95ac261d6a4b29b93bcd317277d7766a525ea95975e6efc6e9862794N.exe	83
PID 1884 wrote to memory of 116	1884	1df5981e95ac261d6a4b29b93bcd317277d7766a525ea95975e6efc6e9862794N.exe	83
PID 116 wrote to memory of 3448	116	winver.exe	56
PID 116 wrote to memory of 2540	116	winver.exe	42

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
PID:2540

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3448
- C:\Users\Admin\AppData\Local\Temp\1df5981e95ac261d6a4b29b93bcd317277d7766a525ea95975e6efc6e9862794N.exe
  "C:\Users\Admin\AppData\Local\Temp\1df5981e95ac261d6a4b29b93bcd317277d7766a525ea95975e6efc6e9862794N.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1884
- - 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:116
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 116 -s 356
      4⤵
      Program crash
      PID:2160

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 360 -p 116 -ip 116
1⤵
PID:2872

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/116-15-0x0000000002B80000-0x0000000002B86000-memory.dmp

Filesize
24KB

Download
memory/116-6-0x0000000077C92000-0x0000000077C93000-memory.dmp

Filesize
4KB

Download
memory/116-5-0x0000000002B80000-0x0000000002B86000-memory.dmp

Filesize
24KB

Download
memory/116-8-0x00007FFC18FF0000-0x00007FFC191E5000-memory.dmp

Filesize
2.0MB

Download
memory/1884-10-0x00000000020E0000-0x0000000002AE0000-memory.dmp

Filesize
10.0MB

Download
memory/1884-1-0x0000000002020000-0x0000000002021000-memory.dmp

Filesize
4KB

Download
memory/1884-0-0x0000000000400000-0x000000000041E000-memory.dmp

Filesize
120KB

Download
memory/1884-4-0x00000000020E0000-0x0000000002AE0000-memory.dmp

Filesize
10.0MB

Download
memory/1884-9-0x0000000000400000-0x000000000041E000-memory.dmp

Filesize
120KB

Download
memory/2540-14-0x0000000000DC0000-0x0000000000DC6000-memory.dmp

Filesize
24KB

Download
memory/3448-3-0x00000000012D0000-0x00000000012D6000-memory.dmp

Filesize
24KB

Download
memory/3448-7-0x00007FFC1908D000-0x00007FFC1908E000-memory.dmp

Filesize
4KB

Download
memory/3448-2-0x00000000012D0000-0x00000000012D6000-memory.dmp

Filesize
24KB

Download