tinba | b425af207da5a89232b86566a798a241201a13508adeb0a57124f331c657b452

Analysis

max time kernel
103s
max time network
103s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
27-11-2024 05:03

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General

Target

b425af207da5a89232b86566a798a241201a13508adeb0a57124f331c657b452N.exe
Size

88KB
MD5

9521c013f02760226426f1066f49c3f0
SHA1

121ed7d42f0c1e5733fc05b26a2a5e676cad614f
SHA256

b425af207da5a89232b86566a798a241201a13508adeb0a57124f331c657b452
SHA512

4d521c6e6739a91780b820c6304b6e4f4d3aa46056a15a0c31f25e892331c53e148d7f28ceb907328b3b19966d27c1d8aa11f334a8f1aaf097c02d289d9b2c9c
SSDEEP

1536:ez44CpRkr9DXhHf3aOd/56RrkQqjh+rmKVsNj:ezvokZR/KM/ysjwqWsNj

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-1-5-21-3227495264-2217614367-4027411560-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\319AEE0F = "C:\\Users\\Admin\\AppData\\Roaming\\319AEE0F\\bin.exe"	winver.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
3440	3020	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	b425af207da5a89232b86566a798a241201a13508adeb0a57124f331c657b452N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winver.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
3020	winver.exe
3020	winver.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeShutdownPrivilege	3432	Explorer.EXE
Token: SeCreatePagefilePrivilege	3432	Explorer.EXE

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
3020	winver.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2888 wrote to memory of 3020	2888	b425af207da5a89232b86566a798a241201a13508adeb0a57124f331c657b452N.exe	83
PID 2888 wrote to memory of 3020	2888	b425af207da5a89232b86566a798a241201a13508adeb0a57124f331c657b452N.exe	83
PID 2888 wrote to memory of 3020	2888	b425af207da5a89232b86566a798a241201a13508adeb0a57124f331c657b452N.exe	83
PID 2888 wrote to memory of 3020	2888	b425af207da5a89232b86566a798a241201a13508adeb0a57124f331c657b452N.exe	83
PID 3020 wrote to memory of 3432	3020	winver.exe	56
PID 3020 wrote to memory of 2920	3020	winver.exe	49

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
PID:2920

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3432
- C:\Users\Admin\AppData\Local\Temp\b425af207da5a89232b86566a798a241201a13508adeb0a57124f331c657b452N.exe
  "C:\Users\Admin\AppData\Local\Temp\b425af207da5a89232b86566a798a241201a13508adeb0a57124f331c657b452N.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2888
- - 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:3020
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3020 -s 352
      4⤵
      Program crash
      PID:3440

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3020 -ip 3020
1⤵
PID:2752

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/2888-0-0x00000000005B0000-0x00000000005B1000-memory.dmp

Filesize
4KB

Download
memory/2888-3-0x0000000002330000-0x0000000002D30000-memory.dmp

Filesize
10.0MB

Download
memory/2888-7-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2888-8-0x0000000002330000-0x0000000002D30000-memory.dmp

Filesize
10.0MB

Download
memory/2920-12-0x0000000000E30000-0x0000000000E36000-memory.dmp

Filesize
24KB

Download
memory/3020-4-0x00000000777A2000-0x00000000777A3000-memory.dmp

Filesize
4KB

Download
memory/3020-6-0x00007FFDD3910000-0x00007FFDD3B05000-memory.dmp

Filesize
2.0MB

Download
memory/3020-10-0x00000000005A0000-0x00000000005A6000-memory.dmp

Filesize
24KB

Download
memory/3020-13-0x00000000005A0000-0x00000000005A6000-memory.dmp

Filesize
24KB

Download
memory/3432-1-0x0000000000CB0000-0x0000000000CB6000-memory.dmp

Filesize
24KB

Download
memory/3432-2-0x0000000000CB0000-0x0000000000CB6000-memory.dmp

Filesize
24KB

Download
memory/3432-5-0x00007FFDD39AD000-0x00007FFDD39AE000-memory.dmp

Filesize
4KB

Download