tinba | 43859b3c2f2c07cca35f73d5f0d8248f72d9dfd82b8c8709dcf4107f3eb292c5

Analysis

max time kernel
146s
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
06/12/2024, 05:53

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General

Target

43859b3c2f2c07cca35f73d5f0d8248f72d9dfd82b8c8709dcf4107f3eb292c5.exe
Size

45KB
MD5

955fd7943da0a3bb646e336569b8ce99
SHA1

bb689d81a522cc010e0a945ec7f6b56aa5410bd8
SHA256

43859b3c2f2c07cca35f73d5f0d8248f72d9dfd82b8c8709dcf4107f3eb292c5
SHA512

3ed370d70dcc517b2b9aa16d310483346d4a4909f9dbdeb87a0a0cbb26eafeb396beeb5d1056128464fb6055cd861c6189349e5f8c7a6829064832f9c51238e3
SSDEEP

768:rhP0kDE9N5dCA8J7VHXdrIniQaBTT+QQ+r1n4K8+C9TtIuCjaqUODvJVQ2/:NsWE9N5dFu53dsniQaB/xZ14n7zIF+qL

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\20C3EC25 = "C:\\Users\\Admin\\AppData\\Roaming\\20C3EC25\\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/3604-0-0x0000000000400000-0x000000000041D000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
3584	380	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	43859b3c2f2c07cca35f73d5f0d8248f72d9dfd82b8c8709dcf4107f3eb292c5.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winver.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
380	winver.exe
380	winver.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeShutdownPrivilege	3440	Explorer.EXE
Token: SeCreatePagefilePrivilege	3440	Explorer.EXE

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
380	winver.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 3604 wrote to memory of 380	3604	43859b3c2f2c07cca35f73d5f0d8248f72d9dfd82b8c8709dcf4107f3eb292c5.exe	84
PID 3604 wrote to memory of 380	3604	43859b3c2f2c07cca35f73d5f0d8248f72d9dfd82b8c8709dcf4107f3eb292c5.exe	84
PID 3604 wrote to memory of 380	3604	43859b3c2f2c07cca35f73d5f0d8248f72d9dfd82b8c8709dcf4107f3eb292c5.exe	84
PID 3604 wrote to memory of 380	3604	43859b3c2f2c07cca35f73d5f0d8248f72d9dfd82b8c8709dcf4107f3eb292c5.exe	84
PID 380 wrote to memory of 3440	380	winver.exe	56
PID 380 wrote to memory of 2612	380	winver.exe	44

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
PID:2612

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3440
- C:\Users\Admin\AppData\Local\Temp\43859b3c2f2c07cca35f73d5f0d8248f72d9dfd82b8c8709dcf4107f3eb292c5.exe
  "C:\Users\Admin\AppData\Local\Temp\43859b3c2f2c07cca35f73d5f0d8248f72d9dfd82b8c8709dcf4107f3eb292c5.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3604
- - 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:380
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 380 -s 352
      4⤵
      Program crash
      PID:3584

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 208 -p 380 -ip 380
1⤵
PID:4976

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/380-5-0x0000000077A32000-0x0000000077A33000-memory.dmp

Filesize
4KB

Download
memory/380-14-0x0000000000780000-0x0000000000786000-memory.dmp

Filesize
24KB

Download
memory/380-11-0x0000000000780000-0x0000000000786000-memory.dmp

Filesize
24KB

Download
memory/380-7-0x00007FFFC3F70000-0x00007FFFC4165000-memory.dmp

Filesize
2.0MB

Download
memory/2612-13-0x00000000002A0000-0x00000000002A6000-memory.dmp

Filesize
24KB

Download
memory/3440-2-0x0000000000BE0000-0x0000000000BE6000-memory.dmp

Filesize
24KB

Download
memory/3440-6-0x00007FFFC400D000-0x00007FFFC400E000-memory.dmp

Filesize
4KB

Download
memory/3440-3-0x0000000000BE0000-0x0000000000BE6000-memory.dmp

Filesize
24KB

Download
memory/3604-4-0x00000000022C0000-0x0000000002CC0000-memory.dmp

Filesize
10.0MB

Download
memory/3604-8-0x0000000000400000-0x000000000041D000-memory.dmp

Filesize
116KB

Download
memory/3604-9-0x00000000022C0000-0x0000000002CC0000-memory.dmp

Filesize
10.0MB

Download
memory/3604-0-0x0000000000400000-0x000000000041D000-memory.dmp

Filesize
116KB

Download
memory/3604-1-0x00000000006C0000-0x00000000006C1000-memory.dmp

Filesize
4KB

Download