tinba | b3509c3b551528e4889296fd035e1801c727adbc75a0ad600a604a78be871821

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
05/12/2024, 22:40

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General

Target

b3509c3b551528e4889296fd035e1801c727adbc75a0ad600a604a78be871821N.exe
Size

45KB
MD5

02c33fdb2c73a492c9af32f660491550
SHA1

830d64b6f43a27bca07bb9cbb514370e59bd6a34
SHA256

b3509c3b551528e4889296fd035e1801c727adbc75a0ad600a604a78be871821
SHA512

e073909de3eb0b0737a09f460f33e114278eb8a71a65d5f813c7aaee06dc63c681f413cb84cfb39141e9f7b88b098ee243c467cdaecf1697cf98d998b9154122
SSDEEP

768:ZhP0kDE9N5dCA8J7VHXdrIniQaBTT+QQ+r1n4K8+C9TtIuCjaqUODvJVQ2P:DsWE9N5dFu53dsniQaB/xZ14n7zIF+q7

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-1-5-21-493223053-2004649691-1575712786-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\EFFC8F17 = "C:\\Users\\Admin\\AppData\\Roaming\\EFFC8F17\\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/4216-0-0x0000000000400000-0x000000000041D000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2372	3484	WerFault.exe	85

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	b3509c3b551528e4889296fd035e1801c727adbc75a0ad600a604a78be871821N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winver.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
3484	winver.exe
3484	winver.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeShutdownPrivilege	3444	Explorer.EXE
Token: SeCreatePagefilePrivilege	3444	Explorer.EXE

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
3484	winver.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4216 wrote to memory of 3484	4216	b3509c3b551528e4889296fd035e1801c727adbc75a0ad600a604a78be871821N.exe	85
PID 4216 wrote to memory of 3484	4216	b3509c3b551528e4889296fd035e1801c727adbc75a0ad600a604a78be871821N.exe	85
PID 4216 wrote to memory of 3484	4216	b3509c3b551528e4889296fd035e1801c727adbc75a0ad600a604a78be871821N.exe	85
PID 4216 wrote to memory of 3484	4216	b3509c3b551528e4889296fd035e1801c727adbc75a0ad600a604a78be871821N.exe	85
PID 3484 wrote to memory of 3444	3484	winver.exe	56
PID 3484 wrote to memory of 2816	3484	winver.exe	51

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
PID:2816

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3444
- C:\Users\Admin\AppData\Local\Temp\b3509c3b551528e4889296fd035e1801c727adbc75a0ad600a604a78be871821N.exe
  "C:\Users\Admin\AppData\Local\Temp\b3509c3b551528e4889296fd035e1801c727adbc75a0ad600a604a78be871821N.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4216
- - 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:3484
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3484 -s 352
      4⤵
      Program crash
      PID:2372

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 3484 -ip 3484
1⤵
PID:4020

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/2816-14-0x0000000000BB0000-0x0000000000BB6000-memory.dmp

Filesize
24KB

Download
memory/3444-6-0x00007FFA1400D000-0x00007FFA1400E000-memory.dmp

Filesize
4KB

Download
memory/3444-3-0x0000000001060000-0x0000000001066000-memory.dmp

Filesize
24KB

Download
memory/3444-2-0x0000000001060000-0x0000000001066000-memory.dmp

Filesize
24KB

Download
memory/3484-5-0x0000000077CB2000-0x0000000077CB3000-memory.dmp

Filesize
4KB

Download
memory/3484-7-0x00007FFA13F70000-0x00007FFA14165000-memory.dmp

Filesize
2.0MB

Download
memory/3484-12-0x0000000001260000-0x0000000001266000-memory.dmp

Filesize
24KB

Download
memory/3484-15-0x0000000001260000-0x0000000001266000-memory.dmp

Filesize
24KB

Download
memory/4216-4-0x00000000021E0000-0x0000000002BE0000-memory.dmp

Filesize
10.0MB

Download
memory/4216-0-0x0000000000400000-0x000000000041D000-memory.dmp

Filesize
116KB

Download
memory/4216-9-0x0000000000400000-0x000000000041D000-memory.dmp

Filesize
116KB

Download
memory/4216-10-0x00000000021E0000-0x0000000002BE0000-memory.dmp

Filesize
10.0MB

Download
memory/4216-1-0x00000000004F0000-0x00000000004F1000-memory.dmp

Filesize
4KB

Download