tinba | 383ac30c368c1dc467cb1931640e947e4fd81114f5741d44a50b4b7e0237407f

Analysis

max time kernel
150s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
15-12-2024 11:16

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General

Target

12,27,58 27-07-2015 voice.wav.exe
Size

100KB
MD5

8af1ac4476bd48388fd690c6bdf82eb8
SHA1

9541efff429a869992c046a81d4a04842835e1ce
SHA256

d445d97c79e6578a194e85619ab0183d930ac4041b73210582f04b4a6d6300ad
SHA512

dd735d40f46236d0d5805347f107c3f276b60154735537faf9f82f20a9f2d2d6d28db08e0894ed3a810c484d9d18fedaa55da050de5af9c577deb63d3d020e1e
SSDEEP

1536:YryIOzqdHP1HDYObBAG88zff0B/xDy9Qq/dU1+K975AnpUH/rT6Ic:QzdHF3lacn0BJoQGUQKDgp0/36z

Score

10^/10

tinba banker discovery persistence trojan

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\99C3B7EF = "C:\\Users\\Admin\\AppData\\Roaming\\99C3B7EF\\bin.exe"	EXPLORER.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 632 set thread context of 4236	632	12,27,58 27-07-2015 voice.wav.exe	83

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1592	2748	WerFault.exe	84

System Location Discovery: System Language Discovery 1 TTPs 3 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	12,27,58 27-07-2015 voice.wav.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	12,27,58 27-07-2015 voice.wav.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	EXPLORER.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
632	12,27,58 27-07-2015 voice.wav.exe
632	12,27,58 27-07-2015 voice.wav.exe
2748	EXPLORER.exe
2748	EXPLORER.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
632	12,27,58 27-07-2015 voice.wav.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 632 wrote to memory of 4236	632	12,27,58 27-07-2015 voice.wav.exe	83
PID 632 wrote to memory of 4236	632	12,27,58 27-07-2015 voice.wav.exe	83
PID 632 wrote to memory of 4236	632	12,27,58 27-07-2015 voice.wav.exe	83
PID 632 wrote to memory of 4236	632	12,27,58 27-07-2015 voice.wav.exe	83
PID 632 wrote to memory of 4236	632	12,27,58 27-07-2015 voice.wav.exe	83
PID 632 wrote to memory of 4236	632	12,27,58 27-07-2015 voice.wav.exe	83
PID 632 wrote to memory of 4236	632	12,27,58 27-07-2015 voice.wav.exe	83
PID 4236 wrote to memory of 2748	4236	12,27,58 27-07-2015 voice.wav.exe	84
PID 4236 wrote to memory of 2748	4236	12,27,58 27-07-2015 voice.wav.exe	84
PID 4236 wrote to memory of 2748	4236	12,27,58 27-07-2015 voice.wav.exe	84
PID 4236 wrote to memory of 2748	4236	12,27,58 27-07-2015 voice.wav.exe	84
PID 2748 wrote to memory of 2992	2748	EXPLORER.exe	49

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
PID:2992

C:\Users\Admin\AppData\Local\Temp\12,27,58 27-07-2015 voice.wav.exe
"C:\Users\Admin\AppData\Local\Temp\12,27,58 27-07-2015 voice.wav.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:632
- C:\Users\Admin\AppData\Local\Temp\12,27,58 27-07-2015 voice.wav.exe
  "C:\Users\Admin\AppData\Local\Temp\12,27,58 27-07-2015 voice.wav.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4236
- - C:\Windows\SysWOW64\EXPLORER.exe
    EXPLORER
    3⤵
    - Adds Run key to start application
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of WriteProcessMemory
    PID:2748
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2748 -s 804
      4⤵
      Program crash
      PID:1592

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 2748 -ip 2748
1⤵
PID:3028

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/632-0-0x0000000002280000-0x0000000002284000-memory.dmp

Filesize
16KB

Download
memory/2748-4-0x0000000000E23000-0x0000000000E24000-memory.dmp

Filesize
4KB

Download
memory/2748-5-0x0000000000D40000-0x0000000001173000-memory.dmp

Filesize
4.2MB

Download
memory/2748-9-0x0000000000CF0000-0x0000000000CF7000-memory.dmp

Filesize
28KB

Download
memory/2748-15-0x0000000000CF0000-0x0000000000CF7000-memory.dmp

Filesize
28KB

Download
memory/2992-12-0x0000000000540000-0x0000000000547000-memory.dmp

Filesize
28KB

Download
memory/2992-14-0x00007FF885D4D000-0x00007FF885D4E000-memory.dmp

Filesize
4KB

Download
memory/2992-13-0x0000000000540000-0x0000000000547000-memory.dmp

Filesize
28KB

Download
memory/4236-2-0x0000000000400000-0x0000000001517000-memory.dmp

Filesize
17.1MB

Download
memory/4236-3-0x0000000000400000-0x0000000000404600-memory.dmp

Filesize
17KB

Download