tinba | 77f4e525445b32972dbf1722710896bcf84b88a03b5664e48bd9f3dbe29f3af8

Analysis

max time kernel
111s
max time network
97s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
06/12/2024, 19:57

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General

Target

77f4e525445b32972dbf1722710896bcf84b88a03b5664e48bd9f3dbe29f3af8.exe
Size

110KB
MD5

cf70d18a2c47b4e178e5aff02f359c2c
SHA1

d1bced6598b585153dba8d4aa70922ab9e3bf20f
SHA256

77f4e525445b32972dbf1722710896bcf84b88a03b5664e48bd9f3dbe29f3af8
SHA512

d3f80ccb2681bcf5fe662acbd2f8689856d241f6362bc418780c200343450a0f31d3ec97bde33220b121f5453038b2de14a6ff35628b10e07eb91976d5851ee7
SSDEEP

1536:jiLOvRmmQegJfBbmAQ256/ZrwWnwqjhurmKFcxL8JQ2r0Ew:jiyvRmDLs/ZrwWJjAqGcRJ2hw

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\5CBE4409 = "C:\\Users\\Admin\\AppData\\Roaming\\5CBE4409\\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/2696-0-0x0000000000400000-0x000000000041E000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
3588	3840	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	77f4e525445b32972dbf1722710896bcf84b88a03b5664e48bd9f3dbe29f3af8.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winver.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
3840	winver.exe
3840	winver.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeShutdownPrivilege	3536	Explorer.EXE
Token: SeCreatePagefilePrivilege	3536	Explorer.EXE

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
3840	winver.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2696 wrote to memory of 3840	2696	77f4e525445b32972dbf1722710896bcf84b88a03b5664e48bd9f3dbe29f3af8.exe	83
PID 2696 wrote to memory of 3840	2696	77f4e525445b32972dbf1722710896bcf84b88a03b5664e48bd9f3dbe29f3af8.exe	83
PID 2696 wrote to memory of 3840	2696	77f4e525445b32972dbf1722710896bcf84b88a03b5664e48bd9f3dbe29f3af8.exe	83
PID 2696 wrote to memory of 3840	2696	77f4e525445b32972dbf1722710896bcf84b88a03b5664e48bd9f3dbe29f3af8.exe	83
PID 3840 wrote to memory of 3536	3840	winver.exe	56
PID 3840 wrote to memory of 2652	3840	winver.exe	44

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
PID:2652

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3536
- C:\Users\Admin\AppData\Local\Temp\77f4e525445b32972dbf1722710896bcf84b88a03b5664e48bd9f3dbe29f3af8.exe
  "C:\Users\Admin\AppData\Local\Temp\77f4e525445b32972dbf1722710896bcf84b88a03b5664e48bd9f3dbe29f3af8.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2696
- - 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:3840
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3840 -s 352
      4⤵
      Program crash
      PID:3588

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3840 -ip 3840
1⤵
PID:2980

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/2652-13-0x0000000000820000-0x0000000000826000-memory.dmp

Filesize
24KB

Download
memory/2696-8-0x0000000000400000-0x000000000041E000-memory.dmp

Filesize
120KB

Download
memory/2696-1-0x00000000004F0000-0x00000000004F1000-memory.dmp

Filesize
4KB

Download
memory/2696-0-0x0000000000400000-0x000000000041E000-memory.dmp

Filesize
120KB

Download
memory/2696-4-0x0000000002350000-0x0000000002D50000-memory.dmp

Filesize
10.0MB

Download
memory/2696-9-0x0000000002350000-0x0000000002D50000-memory.dmp

Filesize
10.0MB

Download
memory/3536-2-0x0000000000700000-0x0000000000706000-memory.dmp

Filesize
24KB

Download
memory/3536-6-0x00007FF87446D000-0x00007FF87446E000-memory.dmp

Filesize
4KB

Download
memory/3536-3-0x0000000000700000-0x0000000000706000-memory.dmp

Filesize
24KB

Download
memory/3840-7-0x00007FF8743D0000-0x00007FF8745C5000-memory.dmp

Filesize
2.0MB

Download
memory/3840-5-0x0000000077BD2000-0x0000000077BD3000-memory.dmp

Filesize
4KB

Download
memory/3840-11-0x0000000000E20000-0x0000000000E26000-memory.dmp

Filesize
24KB

Download
memory/3840-14-0x0000000000E20000-0x0000000000E26000-memory.dmp

Filesize
24KB

Download