tinba | 8409e81fd892e2e303d046f033534a1d7d2c50fb0612030644ed54fdea688578

Analysis

max time kernel
114s
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
16-12-2024 12:26

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General

Target

8409e81fd892e2e303d046f033534a1d7d2c50fb0612030644ed54fdea688578N.exe
Size

110KB
MD5

038b50ff26fa3622c4921687784058d0
SHA1

4bc765d5d51aff4bac65e5c399031c19d038b16b
SHA256

8409e81fd892e2e303d046f033534a1d7d2c50fb0612030644ed54fdea688578
SHA512

dddcf5ca3d4a78cc3aa706a0ee75210949989970b25dd3dfbbce4a6bd6c30cb3f1c7348e7bcadad8d2c46e98b446c8c5e92e559598bc2b7ec103874520026e94
SSDEEP

1536:uiLOvRmmQegJfBbmAQ256/ZrwWnwqjhurmKFcxL8JQ2r0EA:uiyvRmDLs/ZrwWJjAqGcRJ2hA

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-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\E1F95823 = "C:\\Users\\Admin\\AppData\\Roaming\\E1F95823\\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/2104-0-0x0000000000400000-0x000000000041E000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
3464	2824	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	8409e81fd892e2e303d046f033534a1d7d2c50fb0612030644ed54fdea688578N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winver.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2824	winver.exe
2824	winver.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeShutdownPrivilege	3440	Explorer.EXE
Token: SeCreatePagefilePrivilege	3440	Explorer.EXE

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
2824	winver.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2104 wrote to memory of 2824	2104	8409e81fd892e2e303d046f033534a1d7d2c50fb0612030644ed54fdea688578N.exe	84
PID 2104 wrote to memory of 2824	2104	8409e81fd892e2e303d046f033534a1d7d2c50fb0612030644ed54fdea688578N.exe	84
PID 2104 wrote to memory of 2824	2104	8409e81fd892e2e303d046f033534a1d7d2c50fb0612030644ed54fdea688578N.exe	84
PID 2104 wrote to memory of 2824	2104	8409e81fd892e2e303d046f033534a1d7d2c50fb0612030644ed54fdea688578N.exe	84
PID 2824 wrote to memory of 3440	2824	winver.exe	56
PID 2824 wrote to memory of 3024	2824	winver.exe	50

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
PID:3024

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3440
- C:\Users\Admin\AppData\Local\Temp\8409e81fd892e2e303d046f033534a1d7d2c50fb0612030644ed54fdea688578N.exe
  "C:\Users\Admin\AppData\Local\Temp\8409e81fd892e2e303d046f033534a1d7d2c50fb0612030644ed54fdea688578N.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2104
- - 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:2824
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2824 -s 352
      4⤵
      Program crash
      PID:3464

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 2824 -ip 2824
1⤵
PID:4600

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/2104-1-0x00000000005A0000-0x00000000005A1000-memory.dmp

Filesize
4KB

Download
memory/2104-0-0x0000000000400000-0x000000000041E000-memory.dmp

Filesize
120KB

Download
memory/2104-4-0x00000000021B0000-0x0000000002BB0000-memory.dmp

Filesize
10.0MB

Download
memory/2104-8-0x0000000000400000-0x000000000041E000-memory.dmp

Filesize
120KB

Download
memory/2104-9-0x00000000021B0000-0x0000000002BB0000-memory.dmp

Filesize
10.0MB

Download
memory/2824-11-0x0000000000F70000-0x0000000000F76000-memory.dmp

Filesize
24KB

Download
memory/2824-14-0x0000000000F70000-0x0000000000F76000-memory.dmp

Filesize
24KB

Download
memory/2824-5-0x0000000077AF2000-0x0000000077AF3000-memory.dmp

Filesize
4KB

Download
memory/2824-7-0x00007FFCE62B0000-0x00007FFCE64A5000-memory.dmp

Filesize
2.0MB

Download
memory/3024-13-0x0000000000990000-0x0000000000996000-memory.dmp

Filesize
24KB

Download
memory/3440-2-0x0000000000A40000-0x0000000000A46000-memory.dmp

Filesize
24KB

Download
memory/3440-6-0x00007FFCE634D000-0x00007FFCE634E000-memory.dmp

Filesize
4KB

Download
memory/3440-3-0x0000000000A40000-0x0000000000A46000-memory.dmp

Filesize
24KB

Download