tinba | 3c56db20c97c549c981285e30a5c5e36129d9bd0c619e83e2b073fcb41b6de80

Analysis

max time kernel
107s
max time network
99s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
11-01-2025 00:41

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General

Target

3c56db20c97c549c981285e30a5c5e36129d9bd0c619e83e2b073fcb41b6de80.exe
Size

45KB
MD5

5f8f3657e9a5fb3f4032f86827433e7d
SHA1

828c6678b7570c1c2932e14b77044ec521ad5046
SHA256

3c56db20c97c549c981285e30a5c5e36129d9bd0c619e83e2b073fcb41b6de80
SHA512

5b785e6183539a872178e22803412bc32ec2f23ecf183d4a8914f9e18cc06617bdc233f88f396eeb27322266362e7c4ca049774b0f2028f9c6e67c2c45d1715a
SSDEEP

768:ihP0kDE9N5dCA8J7VHXdrIniQaBTT+QQ+r1n4K8+C9TtIuCjaqUODvJVQ2f:OsWE9N5dFu53dsniQaB/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-1-5-21-4050598569-1597076380-177084960-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\88881D93 = "C:\\Users\\Admin\\AppData\\Roaming\\88881D93\\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/4176-0-0x0000000000400000-0x000000000041D000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
3752	4396	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	winver.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	3c56db20c97c549c981285e30a5c5e36129d9bd0c619e83e2b073fcb41b6de80.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4396	winver.exe
4396	winver.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeShutdownPrivilege	3412	Explorer.EXE
Token: SeCreatePagefilePrivilege	3412	Explorer.EXE

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
4396	winver.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4176 wrote to memory of 4396	4176	3c56db20c97c549c981285e30a5c5e36129d9bd0c619e83e2b073fcb41b6de80.exe	83
PID 4176 wrote to memory of 4396	4176	3c56db20c97c549c981285e30a5c5e36129d9bd0c619e83e2b073fcb41b6de80.exe	83
PID 4176 wrote to memory of 4396	4176	3c56db20c97c549c981285e30a5c5e36129d9bd0c619e83e2b073fcb41b6de80.exe	83
PID 4176 wrote to memory of 4396	4176	3c56db20c97c549c981285e30a5c5e36129d9bd0c619e83e2b073fcb41b6de80.exe	83
PID 4396 wrote to memory of 3412	4396	winver.exe	55
PID 4396 wrote to memory of 2644	4396	winver.exe	44

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
PID:2644

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3412
- C:\Users\Admin\AppData\Local\Temp\3c56db20c97c549c981285e30a5c5e36129d9bd0c619e83e2b073fcb41b6de80.exe
  "C:\Users\Admin\AppData\Local\Temp\3c56db20c97c549c981285e30a5c5e36129d9bd0c619e83e2b073fcb41b6de80.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4176
- - 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:4396
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4396 -s 352
      4⤵
      Program crash
      PID:3752

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 4396 -ip 4396
1⤵
PID:3032

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/2644-13-0x0000000000020000-0x0000000000026000-memory.dmp

Filesize
24KB

Download
memory/3412-6-0x00007FFEA2CCD000-0x00007FFEA2CCE000-memory.dmp

Filesize
4KB

Download
memory/3412-2-0x0000000000B70000-0x0000000000B76000-memory.dmp

Filesize
24KB

Download
memory/3412-3-0x0000000000B70000-0x0000000000B76000-memory.dmp

Filesize
24KB

Download
memory/4176-9-0x0000000002330000-0x0000000002D30000-memory.dmp

Filesize
10.0MB

Download
memory/4176-4-0x0000000002330000-0x0000000002D30000-memory.dmp

Filesize
10.0MB

Download
memory/4176-8-0x0000000000400000-0x000000000041D000-memory.dmp

Filesize
116KB

Download
memory/4176-0-0x0000000000400000-0x000000000041D000-memory.dmp

Filesize
116KB

Download
memory/4176-1-0x00000000006C0000-0x00000000006C1000-memory.dmp

Filesize
4KB

Download
memory/4396-5-0x0000000077DF2000-0x0000000077DF3000-memory.dmp

Filesize
4KB

Download
memory/4396-7-0x00007FFEA2C30000-0x00007FFEA2E25000-memory.dmp

Filesize
2.0MB

Download
memory/4396-11-0x0000000000E00000-0x0000000000E06000-memory.dmp

Filesize
24KB

Download
memory/4396-14-0x0000000000E00000-0x0000000000E06000-memory.dmp

Filesize
24KB

Download