tinba | 6c77e2c6eeb5850600a6405cd7425859ededc399b7cf24bd61645b623f745a36

Analysis

max time kernel
145s
max time network
137s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
21-11-2024 00:09

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General

Target

6c77e2c6eeb5850600a6405cd7425859ededc399b7cf24bd61645b623f745a36.exe
Size

160KB
MD5

c85dd2b0a2519284a09121784abed61e
SHA1

0cba761e68e3fec4a4bed75f3ff231d6c3ac8af3
SHA256

6c77e2c6eeb5850600a6405cd7425859ededc399b7cf24bd61645b623f745a36
SHA512

231ab0edab5b97063ad58767a3759efb6a4397605e47dfe6d9f1bc9c29d1f2c7838ac163b57ba20319c2a0e5dccb9cbf37a540f87a07bcc5b3c560b1043c2049
SSDEEP

1536:gEY+mFM2HXKZgi0Iksu+XM5/HtAQ9J6xphM:TY+4MiIkLZJNAQ9J6ve

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-1-5-21-4089630652-1596403869-279772308-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\6A389E0A = "C:\\Users\\Admin\\AppData\\Roaming\\6A389E0A\\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/4204-0-0x0000000000400000-0x0000000000428000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
636	4556	WerFault.exe	85

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	6c77e2c6eeb5850600a6405cd7425859ededc399b7cf24bd61645b623f745a36.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winver.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4556	winver.exe
4556	winver.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeShutdownPrivilege	3436	Explorer.EXE
Token: SeCreatePagefilePrivilege	3436	Explorer.EXE

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
4556	winver.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4204 wrote to memory of 4556	4204	6c77e2c6eeb5850600a6405cd7425859ededc399b7cf24bd61645b623f745a36.exe	85
PID 4204 wrote to memory of 4556	4204	6c77e2c6eeb5850600a6405cd7425859ededc399b7cf24bd61645b623f745a36.exe	85
PID 4204 wrote to memory of 4556	4204	6c77e2c6eeb5850600a6405cd7425859ededc399b7cf24bd61645b623f745a36.exe	85
PID 4204 wrote to memory of 4556	4204	6c77e2c6eeb5850600a6405cd7425859ededc399b7cf24bd61645b623f745a36.exe	85
PID 4556 wrote to memory of 3436	4556	winver.exe	56
PID 4556 wrote to memory of 2940	4556	winver.exe	50

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
PID:2940

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3436
- C:\Users\Admin\AppData\Local\Temp\6c77e2c6eeb5850600a6405cd7425859ededc399b7cf24bd61645b623f745a36.exe
  "C:\Users\Admin\AppData\Local\Temp\6c77e2c6eeb5850600a6405cd7425859ededc399b7cf24bd61645b623f745a36.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4204
- - 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:4556
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4556 -s 352
      4⤵
      Program crash
      PID:636

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 4556 -ip 4556
1⤵
PID:1036

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/2940-16-0x0000000000B50000-0x0000000000B56000-memory.dmp

Filesize
24KB

Download
memory/3436-7-0x00007FFB79C4D000-0x00007FFB79C4E000-memory.dmp

Filesize
4KB

Download
memory/3436-2-0x0000000000C70000-0x0000000000C76000-memory.dmp

Filesize
24KB

Download
memory/3436-3-0x0000000000C70000-0x0000000000C76000-memory.dmp

Filesize
24KB

Download
memory/4204-4-0x00000000022B0000-0x0000000002CB0000-memory.dmp

Filesize
10.0MB

Download
memory/4204-0-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download
memory/4204-10-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download
memory/4204-11-0x00000000022B0000-0x0000000002CB0000-memory.dmp

Filesize
10.0MB

Download
memory/4204-1-0x0000000002170000-0x0000000002171000-memory.dmp

Filesize
4KB

Download
memory/4556-6-0x0000000076FE2000-0x0000000076FE3000-memory.dmp

Filesize
4KB

Download
memory/4556-5-0x0000000000E10000-0x0000000000E16000-memory.dmp

Filesize
24KB

Download
memory/4556-8-0x00007FFB79BB0000-0x00007FFB79DA5000-memory.dmp

Filesize
2.0MB

Download
memory/4556-15-0x0000000000E10000-0x0000000000E16000-memory.dmp

Filesize
24KB

Download