tinba | b1e41fb0df49c7fe07c85c5bd1faffa620f55bb36d064674b9887c2f91d4422e

Analysis

max time kernel
113s
max time network
95s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
07-01-2025 17:15

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General

Target

b1e41fb0df49c7fe07c85c5bd1faffa620f55bb36d064674b9887c2f91d4422eN.exe
Size

45KB
MD5

8b74361e481e39c472cc77417e31ed40
SHA1

975bf3dcf52a389f968032aa668580f8dcfd193c
SHA256

b1e41fb0df49c7fe07c85c5bd1faffa620f55bb36d064674b9887c2f91d4422e
SHA512

17cc05a23455d32886a410803abfc91af968ab5a40062a6a303685d1920666320958a76c200fb70b89ddc82e8b09063b7ed5065b3bf6a6ad7011922f638c94ca
SSDEEP

768:zhP0kDE9N5dCA8J7VHXdrIniQaBTT+QQ+r1n4K8+C9TtIuCjaqUODvJVQ2d:lsWE9N5dFu53dsniQaB/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-1-5-21-2045521122-590294423-3465680274-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\B8847676 = "C:\\Users\\Admin\\AppData\\Roaming\\B8847676\\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/4248-0-0x0000000000400000-0x000000000041D000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
4908	4724	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	b1e41fb0df49c7fe07c85c5bd1faffa620f55bb36d064674b9887c2f91d4422eN.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winver.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4724	winver.exe
4724	winver.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeShutdownPrivilege	3440	Explorer.EXE
Token: SeCreatePagefilePrivilege	3440	Explorer.EXE

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
4724	winver.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4248 wrote to memory of 4724	4248	b1e41fb0df49c7fe07c85c5bd1faffa620f55bb36d064674b9887c2f91d4422eN.exe	84
PID 4248 wrote to memory of 4724	4248	b1e41fb0df49c7fe07c85c5bd1faffa620f55bb36d064674b9887c2f91d4422eN.exe	84
PID 4248 wrote to memory of 4724	4248	b1e41fb0df49c7fe07c85c5bd1faffa620f55bb36d064674b9887c2f91d4422eN.exe	84
PID 4248 wrote to memory of 4724	4248	b1e41fb0df49c7fe07c85c5bd1faffa620f55bb36d064674b9887c2f91d4422eN.exe	84
PID 4724 wrote to memory of 3440	4724	winver.exe	56
PID 4724 wrote to memory of 692	4724	winver.exe	50

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
PID:692

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3440
- C:\Users\Admin\AppData\Local\Temp\b1e41fb0df49c7fe07c85c5bd1faffa620f55bb36d064674b9887c2f91d4422eN.exe
  "C:\Users\Admin\AppData\Local\Temp\b1e41fb0df49c7fe07c85c5bd1faffa620f55bb36d064674b9887c2f91d4422eN.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4248
- - 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:4724
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4724 -s 352
      4⤵
      Program crash
      PID:4908

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4724 -ip 4724
1⤵
PID:1556

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/692-14-0x0000000000C20000-0x0000000000C26000-memory.dmp

Filesize
24KB

Download
memory/3440-7-0x00007FFF44D2D000-0x00007FFF44D2E000-memory.dmp

Filesize
4KB

Download
memory/3440-3-0x0000000000FB0000-0x0000000000FB6000-memory.dmp

Filesize
24KB

Download
memory/3440-2-0x0000000000FB0000-0x0000000000FB6000-memory.dmp

Filesize
24KB

Download
memory/4248-4-0x00000000021C0000-0x0000000002BC0000-memory.dmp

Filesize
10.0MB

Download
memory/4248-0-0x0000000000400000-0x000000000041D000-memory.dmp

Filesize
116KB

Download
memory/4248-9-0x0000000000400000-0x000000000041D000-memory.dmp

Filesize
116KB

Download
memory/4248-10-0x00000000021C0000-0x0000000002BC0000-memory.dmp

Filesize
10.0MB

Download
memory/4248-1-0x0000000002020000-0x0000000002021000-memory.dmp

Filesize
4KB

Download
memory/4724-6-0x0000000077252000-0x0000000077253000-memory.dmp

Filesize
4KB

Download
memory/4724-5-0x0000000000710000-0x0000000000716000-memory.dmp

Filesize
24KB

Download
memory/4724-8-0x00007FFF44C90000-0x00007FFF44E85000-memory.dmp

Filesize
2.0MB

Download
memory/4724-15-0x0000000000710000-0x0000000000716000-memory.dmp

Filesize
24KB

Download