tinba | f77a2f4b16c44c3a63cd3bbd40974c470219f1109f9bc15806ba30594a7d601d

Analysis

max time kernel
106s
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
02-01-2025 04:08

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General

Target

f77a2f4b16c44c3a63cd3bbd40974c470219f1109f9bc15806ba30594a7d601dN.exe
Size

45KB
MD5

33a9979dfa97af61faac61eac104dcf0
SHA1

07ebf891a12a6b7e1186bfca8110ce9ee029f1b8
SHA256

f77a2f4b16c44c3a63cd3bbd40974c470219f1109f9bc15806ba30594a7d601d
SHA512

f2ec11efe222a208ba23cd313a4aa3ccdbde41af582c2f565d36d8086c86c8e8e68c35edae19574c07f1136f24f0564f0e21035edd3cbc645e51c54b3c6995be
SSDEEP

768:8hP0kDE9N5dCA8J7VHXdrIniQaBTT+QQ+r1n4K8+C9TtIuCjaqUODvJVQ2f:wsWE9N5dFu53dsniQaB/xZ14n7zIF+qr

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\4AF6EB13 = "C:\\Users\\Admin\\AppData\\Roaming\\4AF6EB13\\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/3432-0-0x0000000000400000-0x000000000041D000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
4848	5044	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	f77a2f4b16c44c3a63cd3bbd40974c470219f1109f9bc15806ba30594a7d601dN.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winver.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
5044	winver.exe
5044	winver.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeShutdownPrivilege	3540	Explorer.EXE
Token: SeCreatePagefilePrivilege	3540	Explorer.EXE

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
5044	winver.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 3432 wrote to memory of 5044	3432	f77a2f4b16c44c3a63cd3bbd40974c470219f1109f9bc15806ba30594a7d601dN.exe	84
PID 3432 wrote to memory of 5044	3432	f77a2f4b16c44c3a63cd3bbd40974c470219f1109f9bc15806ba30594a7d601dN.exe	84
PID 3432 wrote to memory of 5044	3432	f77a2f4b16c44c3a63cd3bbd40974c470219f1109f9bc15806ba30594a7d601dN.exe	84
PID 3432 wrote to memory of 5044	3432	f77a2f4b16c44c3a63cd3bbd40974c470219f1109f9bc15806ba30594a7d601dN.exe	84
PID 5044 wrote to memory of 3540	5044	winver.exe	56
PID 5044 wrote to memory of 2516	5044	winver.exe	43

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
PID:2516

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3540
- C:\Users\Admin\AppData\Local\Temp\f77a2f4b16c44c3a63cd3bbd40974c470219f1109f9bc15806ba30594a7d601dN.exe
  "C:\Users\Admin\AppData\Local\Temp\f77a2f4b16c44c3a63cd3bbd40974c470219f1109f9bc15806ba30594a7d601dN.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3432
- - 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:5044
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 5044 -s 352
      4⤵
      Program crash
      PID:4848

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 5044 -ip 5044
1⤵
PID:1344

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/2516-13-0x0000000000460000-0x0000000000466000-memory.dmp

Filesize
24KB

Download
memory/3432-8-0x0000000000400000-0x000000000041D000-memory.dmp

Filesize
116KB

Download
memory/3432-1-0x00000000004F0000-0x00000000004F1000-memory.dmp

Filesize
4KB

Download
memory/3432-0-0x0000000000400000-0x000000000041D000-memory.dmp

Filesize
116KB

Download
memory/3432-4-0x0000000002250000-0x0000000002C50000-memory.dmp

Filesize
10.0MB

Download
memory/3432-9-0x0000000002250000-0x0000000002C50000-memory.dmp

Filesize
10.0MB

Download
memory/3540-2-0x0000000002D00000-0x0000000002D06000-memory.dmp

Filesize
24KB

Download
memory/3540-6-0x00007FF811B8D000-0x00007FF811B8E000-memory.dmp

Filesize
4KB

Download
memory/3540-3-0x0000000002D00000-0x0000000002D06000-memory.dmp

Filesize
24KB

Download
memory/5044-7-0x00007FF811AF0000-0x00007FF811CE5000-memory.dmp

Filesize
2.0MB

Download
memory/5044-5-0x0000000077162000-0x0000000077163000-memory.dmp

Filesize
4KB

Download
memory/5044-11-0x0000000000720000-0x0000000000726000-memory.dmp

Filesize
24KB

Download
memory/5044-14-0x0000000000720000-0x0000000000726000-memory.dmp

Filesize
24KB

Download