tinba | 87be74b7c7572dd346be1e29dc763e1aa1f9ccfe20a6d949bacc76a7e2511b93

Analysis

max time kernel
103s
max time network
94s
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 00:08

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General

Target

87be74b7c7572dd346be1e29dc763e1aa1f9ccfe20a6d949bacc76a7e2511b93.exe
Size

160KB
MD5

cb2b5bbc29d5aa488eb4e1065203b00c
SHA1

3f6227ebc52954430cafa0b632527ecc1523bb28
SHA256

87be74b7c7572dd346be1e29dc763e1aa1f9ccfe20a6d949bacc76a7e2511b93
SHA512

bb149642d7448edd7517dfe26e36f0d77dcbeae4d194e07fe88668dcb5d7ffca1847d446f06b7bf4105d11e79d18171d2d56fbe3c8ce1032ad21d5c92fe47f8b
SSDEEP

1536:eEY+mFM2HXKZgi0Iksu+XM5/HtAQ9J6xph0:VY+4MiIkLZJNAQ9J6vK

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-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\701E8563 = "C:\\Users\\Admin\\AppData\\Roaming\\701E8563\\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/4828-0-0x0000000000400000-0x0000000000428000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2208	3112	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	87be74b7c7572dd346be1e29dc763e1aa1f9ccfe20a6d949bacc76a7e2511b93.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winver.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
3112	winver.exe
3112	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
3112	winver.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4828 wrote to memory of 3112	4828	87be74b7c7572dd346be1e29dc763e1aa1f9ccfe20a6d949bacc76a7e2511b93.exe	84
PID 4828 wrote to memory of 3112	4828	87be74b7c7572dd346be1e29dc763e1aa1f9ccfe20a6d949bacc76a7e2511b93.exe	84
PID 4828 wrote to memory of 3112	4828	87be74b7c7572dd346be1e29dc763e1aa1f9ccfe20a6d949bacc76a7e2511b93.exe	84
PID 4828 wrote to memory of 3112	4828	87be74b7c7572dd346be1e29dc763e1aa1f9ccfe20a6d949bacc76a7e2511b93.exe	84
PID 3112 wrote to memory of 3460	3112	winver.exe	56
PID 3112 wrote to memory of 2884	3112	winver.exe	49

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
PID:2884

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3460
- C:\Users\Admin\AppData\Local\Temp\87be74b7c7572dd346be1e29dc763e1aa1f9ccfe20a6d949bacc76a7e2511b93.exe
  "C:\Users\Admin\AppData\Local\Temp\87be74b7c7572dd346be1e29dc763e1aa1f9ccfe20a6d949bacc76a7e2511b93.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4828
- - 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:3112
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3112 -s 352
      4⤵
      Program crash
      PID:2208

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3112 -ip 3112
1⤵
PID:5088

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/2884-13-0x00000000000E0000-0x00000000000E6000-memory.dmp

Filesize
24KB

Download
memory/3112-5-0x00000000771B2000-0x00000000771B3000-memory.dmp

Filesize
4KB

Download
memory/3112-14-0x0000000000F20000-0x0000000000F26000-memory.dmp

Filesize
24KB

Download
memory/3112-11-0x0000000000F20000-0x0000000000F26000-memory.dmp

Filesize
24KB

Download
memory/3112-7-0x00007FFF0C430000-0x00007FFF0C625000-memory.dmp

Filesize
2.0MB

Download
memory/3460-2-0x0000000000FD0000-0x0000000000FD6000-memory.dmp

Filesize
24KB

Download
memory/3460-6-0x00007FFF0C4CD000-0x00007FFF0C4CE000-memory.dmp

Filesize
4KB

Download
memory/3460-3-0x0000000000FD0000-0x0000000000FD6000-memory.dmp

Filesize
24KB

Download
memory/4828-4-0x0000000002380000-0x0000000002D80000-memory.dmp

Filesize
10.0MB

Download
memory/4828-8-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download
memory/4828-9-0x0000000002380000-0x0000000002D80000-memory.dmp

Filesize
10.0MB

Download
memory/4828-0-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download
memory/4828-1-0x00000000006D0000-0x00000000006D1000-memory.dmp

Filesize
4KB

Download