tinba | c24b54f546fde1d20c3350ba2e6fc8b7f79c9b7492d7a2fc81867a1463d9feee

Analysis

max time kernel
140s
max time network
148s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
04-12-2024 08:10

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General

Target

c24b54f546fde1d20c3350ba2e6fc8b7f79c9b7492d7a2fc81867a1463d9feee.exe
Size

52KB
MD5

983ef2bef42b1ac35aed334238397bb7
SHA1

e5edf123d8e1a42d43e6a96620c1b79ed579e124
SHA256

c24b54f546fde1d20c3350ba2e6fc8b7f79c9b7492d7a2fc81867a1463d9feee
SHA512

4336cafcbd92220b2b7c223df7fc326f6f3020ecad20469d84f7d20644d6e328a8f83d75ce26c1338916ece1063b8df6c33fbcf073647e2d27363062696c66ab
SSDEEP

768:WvC6RMtZNZUXeb4fXDR2JVDDISp8m7DM3pIg4LqTTUUnGg7O1/l9Jq/:umZNZUXeQXFhS6sM3prUSGg7O1d9Ja

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-1-5-21-3756129449-3121373848-4276368241-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\27A8604A = "C:\\Users\\Admin\\AppData\\Roaming\\27A8604A\\bin.exe"	winver.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
952	3976	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	c24b54f546fde1d20c3350ba2e6fc8b7f79c9b7492d7a2fc81867a1463d9feee.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winver.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
3976	winver.exe
3976	winver.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeShutdownPrivilege	3500	Explorer.EXE
Token: SeCreatePagefilePrivilege	3500	Explorer.EXE

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
3976	winver.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 5056 wrote to memory of 3976	5056	c24b54f546fde1d20c3350ba2e6fc8b7f79c9b7492d7a2fc81867a1463d9feee.exe	83
PID 5056 wrote to memory of 3976	5056	c24b54f546fde1d20c3350ba2e6fc8b7f79c9b7492d7a2fc81867a1463d9feee.exe	83
PID 5056 wrote to memory of 3976	5056	c24b54f546fde1d20c3350ba2e6fc8b7f79c9b7492d7a2fc81867a1463d9feee.exe	83
PID 5056 wrote to memory of 3976	5056	c24b54f546fde1d20c3350ba2e6fc8b7f79c9b7492d7a2fc81867a1463d9feee.exe	83
PID 3976 wrote to memory of 3500	3976	winver.exe	55
PID 3976 wrote to memory of 2636	3976	winver.exe	44

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
PID:2636

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3500
- C:\Users\Admin\AppData\Local\Temp\c24b54f546fde1d20c3350ba2e6fc8b7f79c9b7492d7a2fc81867a1463d9feee.exe
  "C:\Users\Admin\AppData\Local\Temp\c24b54f546fde1d20c3350ba2e6fc8b7f79c9b7492d7a2fc81867a1463d9feee.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:5056
- - 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:3976
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3976 -s 352
      4⤵
      Program crash
      PID:952

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3976 -ip 3976
1⤵
PID:2240

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/2636-12-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/3500-2-0x00000000011A0000-0x00000000011A6000-memory.dmp

Filesize
24KB

Download
memory/3500-1-0x00000000011A0000-0x00000000011A6000-memory.dmp

Filesize
24KB

Download
memory/3500-5-0x00007FFBF070D000-0x00007FFBF070E000-memory.dmp

Filesize
4KB

Download
memory/3976-4-0x0000000077A82000-0x0000000077A83000-memory.dmp

Filesize
4KB

Download
memory/3976-6-0x00007FFBF0670000-0x00007FFBF0865000-memory.dmp

Filesize
2.0MB

Download
memory/3976-10-0x0000000001FD0000-0x0000000001FD6000-memory.dmp

Filesize
24KB

Download
memory/3976-13-0x0000000001FD0000-0x0000000001FD6000-memory.dmp

Filesize
24KB

Download
memory/5056-0-0x00000000006C0000-0x00000000006C1000-memory.dmp

Filesize
4KB

Download
memory/5056-3-0x0000000002200000-0x0000000002C00000-memory.dmp

Filesize
10.0MB

Download
memory/5056-7-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/5056-8-0x0000000002200000-0x0000000002C00000-memory.dmp

Filesize
10.0MB

Download