tinba | b9980476a6c1f64404009260f473214f87f7c2eb72293e22defa5f56f253f5f3

Analysis

max time kernel
110s
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
25/01/2025, 06:18

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General

Target

b9980476a6c1f64404009260f473214f87f7c2eb72293e22defa5f56f253f5f3.exe
Size

45KB
MD5

a7347ab7a7cc01e1e8c14488f766ebc0
SHA1

f9a4b95cd30908ad5150727c9af8e8d4847113d2
SHA256

b9980476a6c1f64404009260f473214f87f7c2eb72293e22defa5f56f253f5f3
SHA512

cf2f2d901479a91a6b891c3fde88e856ecd4530183f15de7a69f4fd17d25c5a1a87d03a1a8c2b347585c4c5b79160c4d898acdd32a856817c0be86e1ec7f9918
SSDEEP

768:ehP0kDE9N5dCA8J7VHXdrIniQaBTT+QQ+r1n4K8+C9TtIuCjaqUODvJVQ2F:ysWE9N5dFu53dsniQaB/xZ14n7zIF+qJ

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\AC7AF454 = "C:\\Users\\Admin\\AppData\\Roaming\\AC7AF454\\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/2760-0-0x0000000000400000-0x000000000041D000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
3580	508	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	b9980476a6c1f64404009260f473214f87f7c2eb72293e22defa5f56f253f5f3.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winver.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
508	winver.exe
508	winver.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeShutdownPrivilege	3388	Explorer.EXE
Token: SeCreatePagefilePrivilege	3388	Explorer.EXE

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
508	winver.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2760 wrote to memory of 508	2760	b9980476a6c1f64404009260f473214f87f7c2eb72293e22defa5f56f253f5f3.exe	83
PID 2760 wrote to memory of 508	2760	b9980476a6c1f64404009260f473214f87f7c2eb72293e22defa5f56f253f5f3.exe	83
PID 2760 wrote to memory of 508	2760	b9980476a6c1f64404009260f473214f87f7c2eb72293e22defa5f56f253f5f3.exe	83
PID 2760 wrote to memory of 508	2760	b9980476a6c1f64404009260f473214f87f7c2eb72293e22defa5f56f253f5f3.exe	83
PID 508 wrote to memory of 3388	508	winver.exe	56
PID 508 wrote to memory of 2488	508	winver.exe	42

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
PID:2488

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3388
- C:\Users\Admin\AppData\Local\Temp\b9980476a6c1f64404009260f473214f87f7c2eb72293e22defa5f56f253f5f3.exe
  "C:\Users\Admin\AppData\Local\Temp\b9980476a6c1f64404009260f473214f87f7c2eb72293e22defa5f56f253f5f3.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2760
- - 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:508
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 508 -s 352
      4⤵
      Program crash
      PID:3580

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 508 -ip 508
1⤵
PID:4468

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/508-15-0x0000000002190000-0x0000000002196000-memory.dmp

Filesize
24KB

Download
memory/508-6-0x0000000077DB2000-0x0000000077DB3000-memory.dmp

Filesize
4KB

Download
memory/508-5-0x0000000002190000-0x0000000002196000-memory.dmp

Filesize
24KB

Download
memory/508-8-0x00007FFC22490000-0x00007FFC22685000-memory.dmp

Filesize
2.0MB

Download
memory/2488-14-0x0000000000DE0000-0x0000000000DE6000-memory.dmp

Filesize
24KB

Download
memory/2760-10-0x0000000002210000-0x0000000002C10000-memory.dmp

Filesize
10.0MB

Download
memory/2760-1-0x0000000002160000-0x0000000002161000-memory.dmp

Filesize
4KB

Download
memory/2760-0-0x0000000000400000-0x000000000041D000-memory.dmp

Filesize
116KB

Download
memory/2760-4-0x0000000002210000-0x0000000002C10000-memory.dmp

Filesize
10.0MB

Download
memory/2760-9-0x0000000000400000-0x000000000041D000-memory.dmp

Filesize
116KB

Download
memory/3388-3-0x0000000002E00000-0x0000000002E06000-memory.dmp

Filesize
24KB

Download
memory/3388-7-0x00007FFC2252D000-0x00007FFC2252E000-memory.dmp

Filesize
4KB

Download
memory/3388-2-0x0000000002E00000-0x0000000002E06000-memory.dmp

Filesize
24KB

Download