tinba | 3bce741fe995cde3922fd0a943bca3cf60daca02e3695cabbb077a194e0ab91b

Analysis

max time kernel
145s
max time network
139s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
24-11-2024 07:43

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General

Target

3bce741fe995cde3922fd0a943bca3cf60daca02e3695cabbb077a194e0ab91b.exe
Size

160KB
MD5

bc98e833ad9882d711f85386dcb5d7fc
SHA1

a1ae1046e7a74fbe6d43c2218510c3593118a358
SHA256

3bce741fe995cde3922fd0a943bca3cf60daca02e3695cabbb077a194e0ab91b
SHA512

a24fae5d3b11f2b8486fc792acf1c578446dcdac20fa80bc5f1b329d48eb33e098a03b4be44d98047fce30f1c70f431f1e499a4fa99d911f77dd448749548aa5
SSDEEP

1536:OEY+mFM2HXKZgi0Iksu+XM5/HtAQ9J6xphM:FY+4MiIkLZJNAQ9J6vu

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-1-5-21-2878641211-696417878-3864914810-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\96A3D793 = "C:\\Users\\Admin\\AppData\\Roaming\\96A3D793\\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/4864-0-0x0000000000400000-0x0000000000428000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
3260	2380	WerFault.exe	86

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	3bce741fe995cde3922fd0a943bca3cf60daca02e3695cabbb077a194e0ab91b.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winver.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2380	winver.exe
2380	winver.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeShutdownPrivilege	3528	Explorer.EXE
Token: SeCreatePagefilePrivilege	3528	Explorer.EXE

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
2380	winver.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4864 wrote to memory of 2380	4864	3bce741fe995cde3922fd0a943bca3cf60daca02e3695cabbb077a194e0ab91b.exe	86
PID 4864 wrote to memory of 2380	4864	3bce741fe995cde3922fd0a943bca3cf60daca02e3695cabbb077a194e0ab91b.exe	86
PID 4864 wrote to memory of 2380	4864	3bce741fe995cde3922fd0a943bca3cf60daca02e3695cabbb077a194e0ab91b.exe	86
PID 4864 wrote to memory of 2380	4864	3bce741fe995cde3922fd0a943bca3cf60daca02e3695cabbb077a194e0ab91b.exe	86
PID 2380 wrote to memory of 3528	2380	winver.exe	56
PID 2380 wrote to memory of 2640	2380	winver.exe	44

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
PID:2640

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3528
- C:\Users\Admin\AppData\Local\Temp\3bce741fe995cde3922fd0a943bca3cf60daca02e3695cabbb077a194e0ab91b.exe
  "C:\Users\Admin\AppData\Local\Temp\3bce741fe995cde3922fd0a943bca3cf60daca02e3695cabbb077a194e0ab91b.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4864
- - 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:2380
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2380 -s 352
      4⤵
      Program crash
      PID:3260

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 2380 -ip 2380
1⤵
PID:1152

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/2380-4-0x00007FFAB8B90000-0x00007FFAB8D85000-memory.dmp

Filesize
2.0MB

Download
memory/2380-8-0x0000000002710000-0x0000000002716000-memory.dmp

Filesize
24KB

Download
memory/2380-11-0x0000000002710000-0x0000000002716000-memory.dmp

Filesize
24KB

Download
memory/2640-10-0x00000000005E0000-0x00000000005E6000-memory.dmp

Filesize
24KB

Download
memory/3528-3-0x0000000000D70000-0x0000000000D76000-memory.dmp

Filesize
24KB

Download
memory/3528-5-0x00007FFAB8C2D000-0x00007FFAB8C2E000-memory.dmp

Filesize
4KB

Download
memory/3528-2-0x0000000000D70000-0x0000000000D76000-memory.dmp

Filesize
24KB

Download
memory/4864-0-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download
memory/4864-1-0x00007FFAB8B90000-0x00007FFAB8D85000-memory.dmp

Filesize
2.0MB

Download
memory/4864-6-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download