tinba | 77d449fc28b8330c16277f29f8a84883acab5d6fe85226bbe65730632ed47281

Analysis

max time kernel
109s
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
19-01-2025 17:49

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General

Target

77d449fc28b8330c16277f29f8a84883acab5d6fe85226bbe65730632ed47281.exe
Size

45KB
MD5

9b4ca3a272343015289dd4f0b9b1c2a2
SHA1

4345f33f165f4b049f5479d90923c0d263dc0f26
SHA256

77d449fc28b8330c16277f29f8a84883acab5d6fe85226bbe65730632ed47281
SHA512

4f603d2d8033c2d32762e54d18dbafa751e61c749ccf1de71714fd9303fe2f1e93c7f48eaed3041ea7a9067fe324e0006ff70b36b2da9c4d6ac00e3bfecf8fd1
SSDEEP

768:HhP0kDE9N5dCA8J7VHXdrIniQaBTT+QQ+r1n4K8+C9TtIuCjaqUODvJVQ2d:BsWE9N5dFu53dsniQaB/xZ14n7zIF+qh

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\148BFA29 = "C:\\Users\\Admin\\AppData\\Roaming\\148BFA29\\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/2624-0-0x0000000000400000-0x000000000041D000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2736	1640	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	77d449fc28b8330c16277f29f8a84883acab5d6fe85226bbe65730632ed47281.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winver.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1640	winver.exe
1640	winver.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeShutdownPrivilege	3376	Explorer.EXE
Token: SeCreatePagefilePrivilege	3376	Explorer.EXE

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
1640	winver.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2624 wrote to memory of 1640	2624	77d449fc28b8330c16277f29f8a84883acab5d6fe85226bbe65730632ed47281.exe	83
PID 2624 wrote to memory of 1640	2624	77d449fc28b8330c16277f29f8a84883acab5d6fe85226bbe65730632ed47281.exe	83
PID 2624 wrote to memory of 1640	2624	77d449fc28b8330c16277f29f8a84883acab5d6fe85226bbe65730632ed47281.exe	83
PID 2624 wrote to memory of 1640	2624	77d449fc28b8330c16277f29f8a84883acab5d6fe85226bbe65730632ed47281.exe	83
PID 1640 wrote to memory of 3376	1640	winver.exe	55
PID 1640 wrote to memory of 2584	1640	winver.exe	44

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
PID:2584

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3376
- C:\Users\Admin\AppData\Local\Temp\77d449fc28b8330c16277f29f8a84883acab5d6fe85226bbe65730632ed47281.exe
  "C:\Users\Admin\AppData\Local\Temp\77d449fc28b8330c16277f29f8a84883acab5d6fe85226bbe65730632ed47281.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2624
- - 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:1640
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1640 -s 352
      4⤵
      Program crash
      PID:2736

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 372 -p 1640 -ip 1640
1⤵
PID:5096

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/1640-5-0x0000000077192000-0x0000000077193000-memory.dmp

Filesize
4KB

Download
memory/1640-14-0x0000000000C20000-0x0000000000C26000-memory.dmp

Filesize
24KB

Download
memory/1640-11-0x0000000000C20000-0x0000000000C26000-memory.dmp

Filesize
24KB

Download
memory/1640-7-0x00007FFE0CD90000-0x00007FFE0CF85000-memory.dmp

Filesize
2.0MB

Download
memory/2584-13-0x0000000000C70000-0x0000000000C76000-memory.dmp

Filesize
24KB

Download
memory/2624-9-0x0000000002270000-0x0000000002C70000-memory.dmp

Filesize
10.0MB

Download
memory/2624-4-0x0000000002270000-0x0000000002C70000-memory.dmp

Filesize
10.0MB

Download
memory/2624-8-0x0000000000400000-0x000000000041D000-memory.dmp

Filesize
116KB

Download
memory/2624-0-0x0000000000400000-0x000000000041D000-memory.dmp

Filesize
116KB

Download
memory/2624-1-0x00000000005C0000-0x00000000005C1000-memory.dmp

Filesize
4KB

Download
memory/3376-6-0x00007FFE0CE2D000-0x00007FFE0CE2E000-memory.dmp

Filesize
4KB

Download
memory/3376-3-0x0000000000370000-0x0000000000376000-memory.dmp

Filesize
24KB

Download
memory/3376-2-0x0000000000370000-0x0000000000376000-memory.dmp

Filesize
24KB

Download