tinba | 8a25fb612c0458bee88addc578feb4e51a71047132ed8fc481a2ad56bead9bbd

Analysis

max time kernel
102s
max time network
101s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
23-11-2024 05:37

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General

Target

8a25fb612c0458bee88addc578feb4e51a71047132ed8fc481a2ad56bead9bbd.exe
Size

160KB
MD5

2061a159a71b484e5628980795aede6f
SHA1

2bd6c76516d4ba28f2b143eaac45ab954135190e
SHA256

8a25fb612c0458bee88addc578feb4e51a71047132ed8fc481a2ad56bead9bbd
SHA512

56fa8b9e186824b8ae7ae5da5aec12c395614a99d65b05f8e546ff81fb8f552f064b3efcff5de0d1788e501422c4092ec7bf0f59c5ff03c0eb0907c0892549b7
SSDEEP

1536:bEY+mFM2HXKZgi0Iksu+XM5/HtAQ9J6xphM:IY+4MiIkLZJNAQ9J6v+

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-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\5689AE1C = "C:\\Users\\Admin\\AppData\\Roaming\\5689AE1C\\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/956-0-0x0000000000400000-0x0000000000428000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2240	892	WerFault.exe	84

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	8a25fb612c0458bee88addc578feb4e51a71047132ed8fc481a2ad56bead9bbd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winver.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
892	winver.exe
892	winver.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeShutdownPrivilege	3460	Explorer.EXE
Token: SeCreatePagefilePrivilege	3460	Explorer.EXE

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
892	winver.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 956 wrote to memory of 892	956	8a25fb612c0458bee88addc578feb4e51a71047132ed8fc481a2ad56bead9bbd.exe	84
PID 956 wrote to memory of 892	956	8a25fb612c0458bee88addc578feb4e51a71047132ed8fc481a2ad56bead9bbd.exe	84
PID 956 wrote to memory of 892	956	8a25fb612c0458bee88addc578feb4e51a71047132ed8fc481a2ad56bead9bbd.exe	84
PID 956 wrote to memory of 892	956	8a25fb612c0458bee88addc578feb4e51a71047132ed8fc481a2ad56bead9bbd.exe	84
PID 892 wrote to memory of 3460	892	winver.exe	55
PID 892 wrote to memory of 2656	892	winver.exe	44

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

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3460
- C:\Users\Admin\AppData\Local\Temp\8a25fb612c0458bee88addc578feb4e51a71047132ed8fc481a2ad56bead9bbd.exe
  "C:\Users\Admin\AppData\Local\Temp\8a25fb612c0458bee88addc578feb4e51a71047132ed8fc481a2ad56bead9bbd.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:956
- - 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:892
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 892 -s 352
      4⤵
      Program crash
      PID:2240

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 200 -p 892 -ip 892
1⤵
PID:4812

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/892-5-0x0000000077512000-0x0000000077513000-memory.dmp

Filesize
4KB

Download
memory/892-14-0x00000000013D0000-0x00000000013D6000-memory.dmp

Filesize
24KB

Download
memory/892-11-0x00000000013D0000-0x00000000013D6000-memory.dmp

Filesize
24KB

Download
memory/892-7-0x00007FF9B62D0000-0x00007FF9B64C5000-memory.dmp

Filesize
2.0MB

Download
memory/956-9-0x0000000002120000-0x0000000002B20000-memory.dmp

Filesize
10.0MB

Download
memory/956-4-0x0000000002120000-0x0000000002B20000-memory.dmp

Filesize
10.0MB

Download
memory/956-8-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download
memory/956-0-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download
memory/956-1-0x0000000000650000-0x0000000000651000-memory.dmp

Filesize
4KB

Download
memory/2656-13-0x00000000000E0000-0x00000000000E6000-memory.dmp

Filesize
24KB

Download
memory/3460-6-0x00007FF9B636D000-0x00007FF9B636E000-memory.dmp

Filesize
4KB

Download
memory/3460-2-0x0000000000540000-0x0000000000546000-memory.dmp

Filesize
24KB

Download
memory/3460-3-0x0000000000540000-0x0000000000546000-memory.dmp

Filesize
24KB

Download