tinba | c9c3eb88a5927e2e2dd069fdb5559bfc44cdb6c7c9a54ae7ef2fdec4e633b224

Analysis

max time kernel
109s
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
11-01-2025 21:54

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General

Target

c9c3eb88a5927e2e2dd069fdb5559bfc44cdb6c7c9a54ae7ef2fdec4e633b224N.exe
Size

110KB
MD5

94e780073519e16246175067bdac33c0
SHA1

a22a5528a08204870a5020c8efac6f139b9525b2
SHA256

c9c3eb88a5927e2e2dd069fdb5559bfc44cdb6c7c9a54ae7ef2fdec4e633b224
SHA512

b3fee489a168f0b0b874431d4ab3592a212d5e44e9d7c3f11443614556a6374eb3ccba09deeb837830c1e049d8705a5a74c896c5473d1df7657a7cf60f811db8
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-1-5-21-3442511616-637977696-3186306149-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\B77E8762 = "C:\\Users\\Admin\\AppData\\Roaming\\B77E8762\\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/4376-0-0x0000000000400000-0x000000000041E000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
4624	3124	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	c9c3eb88a5927e2e2dd069fdb5559bfc44cdb6c7c9a54ae7ef2fdec4e633b224N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winver.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
3124	winver.exe
3124	winver.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeShutdownPrivilege	3392	Explorer.EXE
Token: SeCreatePagefilePrivilege	3392	Explorer.EXE

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
3124	winver.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4376 wrote to memory of 3124	4376	c9c3eb88a5927e2e2dd069fdb5559bfc44cdb6c7c9a54ae7ef2fdec4e633b224N.exe	83
PID 4376 wrote to memory of 3124	4376	c9c3eb88a5927e2e2dd069fdb5559bfc44cdb6c7c9a54ae7ef2fdec4e633b224N.exe	83
PID 4376 wrote to memory of 3124	4376	c9c3eb88a5927e2e2dd069fdb5559bfc44cdb6c7c9a54ae7ef2fdec4e633b224N.exe	83
PID 4376 wrote to memory of 3124	4376	c9c3eb88a5927e2e2dd069fdb5559bfc44cdb6c7c9a54ae7ef2fdec4e633b224N.exe	83
PID 3124 wrote to memory of 3392	3124	winver.exe	56
PID 3124 wrote to memory of 2652	3124	winver.exe	44

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
PID:2652

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3392
- C:\Users\Admin\AppData\Local\Temp\c9c3eb88a5927e2e2dd069fdb5559bfc44cdb6c7c9a54ae7ef2fdec4e633b224N.exe
  "C:\Users\Admin\AppData\Local\Temp\c9c3eb88a5927e2e2dd069fdb5559bfc44cdb6c7c9a54ae7ef2fdec4e633b224N.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4376
- - 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:3124
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3124 -s 352
      4⤵
      Program crash
      PID:4624

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 3124 -ip 3124
1⤵
PID:4184

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/2652-13-0x00000000004A0000-0x00000000004A6000-memory.dmp

Filesize
24KB

Download
memory/3124-5-0x0000000077612000-0x0000000077613000-memory.dmp

Filesize
4KB

Download
memory/3124-14-0x0000000000D20000-0x0000000000D26000-memory.dmp

Filesize
24KB

Download
memory/3124-11-0x0000000000D20000-0x0000000000D26000-memory.dmp

Filesize
24KB

Download
memory/3124-7-0x00007FFF147D0000-0x00007FFF149C5000-memory.dmp

Filesize
2.0MB

Download
memory/3392-2-0x00000000008E0000-0x00000000008E6000-memory.dmp

Filesize
24KB

Download
memory/3392-6-0x00007FFF1486D000-0x00007FFF1486E000-memory.dmp

Filesize
4KB

Download
memory/3392-3-0x00000000008E0000-0x00000000008E6000-memory.dmp

Filesize
24KB

Download
memory/4376-4-0x0000000002320000-0x0000000002D20000-memory.dmp

Filesize
10.0MB

Download
memory/4376-8-0x0000000000400000-0x000000000041E000-memory.dmp

Filesize
120KB

Download
memory/4376-9-0x0000000002320000-0x0000000002D20000-memory.dmp

Filesize
10.0MB

Download
memory/4376-0-0x0000000000400000-0x000000000041E000-memory.dmp

Filesize
120KB

Download
memory/4376-1-0x00000000006C0000-0x00000000006C1000-memory.dmp

Filesize
4KB

Download