tinba | 52a4b2ebdf27c8847ee73696fb7bd893ecdff3e861f196c34cb5d78b5caa1e30

Analysis

max time kernel
111s
max time network
96s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
01/10/2024, 04:31

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General

Target
52a4b2ebdf27c8847ee73696fb7bd893ecdff3e861f196c34cb5d78b5caa1e30N.exe
Size 110KB
Sample241001-e5cq4svcqh
SHA256 52a4b2ebdf27c8847ee73696fb7bd893ecdff3e861f196c34cb5d78b5caa1e30
MD5 7aa183fd3022abfafcb4e3528ba75750
SHA1 428a528fe721af5487f7f9c791a2bdc58451b529
SHA512 c129b37812d2c5325e5f25225812da521c01bca785033f8284d76e084c55393f86be721f804364a8b159b19a80bc32534f55fe4dda8120fed859b9ff340d5452
SSDEEP 1536:uiLOvRmmQegJfBbmAQ256/ZrwWnwqjhurmKFcxL8JQ2r0Eg:uiyvRmDLs/ZrwWJjAqGcRJ2hg
MD5 SHA1 SHA512 SSDEEP

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

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-1-5-21-1302416131-1437503476-2806442725-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\22AF12DD = "C:\\Users\\Admin\\AppData\\Roaming\\22AF12DD\\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/4696-0-0x0000000000400000-0x000000000041E000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
3080	4488	WerFault.exe	82

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	52a4b2ebdf27c8847ee73696fb7bd893ecdff3e861f196c34cb5d78b5caa1e30N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winver.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4488	winver.exe
4488	winver.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeShutdownPrivilege	3484	Explorer.EXE
Token: SeCreatePagefilePrivilege	3484	Explorer.EXE

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
4488	winver.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4696 wrote to memory of 4488	4696	52a4b2ebdf27c8847ee73696fb7bd893ecdff3e861f196c34cb5d78b5caa1e30N.exe	82
PID 4696 wrote to memory of 4488	4696	52a4b2ebdf27c8847ee73696fb7bd893ecdff3e861f196c34cb5d78b5caa1e30N.exe	82
PID 4696 wrote to memory of 4488	4696	52a4b2ebdf27c8847ee73696fb7bd893ecdff3e861f196c34cb5d78b5caa1e30N.exe	82
PID 4696 wrote to memory of 4488	4696	52a4b2ebdf27c8847ee73696fb7bd893ecdff3e861f196c34cb5d78b5caa1e30N.exe	82
PID 4488 wrote to memory of 3484	4488	winver.exe	56
PID 4488 wrote to memory of 2656	4488	winver.exe	49

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
PID:2656

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3484
- C:\Users\Admin\AppData\Local\Temp\52a4b2ebdf27c8847ee73696fb7bd893ecdff3e861f196c34cb5d78b5caa1e30N.exe
  "C:\Users\Admin\AppData\Local\Temp\52a4b2ebdf27c8847ee73696fb7bd893ecdff3e861f196c34cb5d78b5caa1e30N.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4696
- - 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:4488
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4488 -s 352
      4⤵
      Program crash
      PID:3080

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4488 -ip 4488
1⤵
PID:700

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

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Downloads

memory/2656-13-0x0000000000170000-0x0000000000176000-memory.dmp

Download

memory/3484-6-0x00007FF91FBAD000-0x00007FF91FBAE000-memory.dmp

Download

memory/3484-3-0x0000000000910000-0x0000000000916000-memory.dmp

Download

memory/3484-2-0x0000000000910000-0x0000000000916000-memory.dmp

Download

memory/4488-5-0x0000000077012000-0x0000000077013000-memory.dmp

Download

memory/4488-7-0x00007FF91FB10000-0x00007FF91FD05000-memory.dmp

Download

memory/4488-11-0x0000000002840000-0x0000000002846000-memory.dmp

Download

memory/4488-14-0x0000000002840000-0x0000000002846000-memory.dmp

Download

memory/4696-4-0x0000000002110000-0x0000000002B10000-memory.dmp

Download

memory/4696-0-0x0000000000400000-0x000000000041E000-memory.dmp

Download

memory/4696-8-0x0000000000400000-0x000000000041E000-memory.dmp

Download

memory/4696-9-0x0000000002110000-0x0000000002B10000-memory.dmp

Download

memory/4696-1-0x0000000000560000-0x0000000000561000-memory.dmp

Download