tinba | 881779ff82d4a843f5a72f67a7e089dc8d4c28ac26e5652996d927092be75418

Analysis

max time kernel
109s
max time network
95s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
02-10-2024 21:24

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General

Target

881779ff82d4a843f5a72f67a7e089dc8d4c28ac26e5652996d927092be75418N.exe
Size

34KB
MD5

af6d670c43167b010dd82f44cf76c310
SHA1

f9ef679565db948661a943fe37ff416079319a34
SHA256

881779ff82d4a843f5a72f67a7e089dc8d4c28ac26e5652996d927092be75418
SHA512

d0f7b2d9a8ad2ce3c0f060cf841d77b131d8bae574faf3f51a519ac87b174c49ddd3fdcb39bb41f4cc42d6268d01359e2a8edd2049484686ee6b85a3970c26ef
SSDEEP

768:bp22qWFcy5XQ7lO41uirwA98p3MpkNBxd0cJWV6dy/x9J2:bpYoX58z1uirL98xMWnT0OQ9J2

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

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-1-5-21-656926755-4116854191-210765258-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\C764951F = "C:\\Users\\Admin\\AppData\\Roaming\\C764951F\\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/3028-0-0x0000000000400000-0x0000000000417000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
4812	2352	WerFault.exe	83

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	881779ff82d4a843f5a72f67a7e089dc8d4c28ac26e5652996d927092be75418N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winver.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2352	winver.exe
2352	winver.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeShutdownPrivilege	3400	Explorer.EXE
Token: SeCreatePagefilePrivilege	3400	Explorer.EXE

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
2352	winver.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 3028 wrote to memory of 2352	3028	881779ff82d4a843f5a72f67a7e089dc8d4c28ac26e5652996d927092be75418N.exe	83
PID 3028 wrote to memory of 2352	3028	881779ff82d4a843f5a72f67a7e089dc8d4c28ac26e5652996d927092be75418N.exe	83
PID 3028 wrote to memory of 2352	3028	881779ff82d4a843f5a72f67a7e089dc8d4c28ac26e5652996d927092be75418N.exe	83
PID 3028 wrote to memory of 2352	3028	881779ff82d4a843f5a72f67a7e089dc8d4c28ac26e5652996d927092be75418N.exe	83
PID 2352 wrote to memory of 3400	2352	winver.exe	55
PID 2352 wrote to memory of 2552	2352	winver.exe	44

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
PID:2552

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3400
- C:\Users\Admin\AppData\Local\Temp\881779ff82d4a843f5a72f67a7e089dc8d4c28ac26e5652996d927092be75418N.exe
  "C:\Users\Admin\AppData\Local\Temp\881779ff82d4a843f5a72f67a7e089dc8d4c28ac26e5652996d927092be75418N.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3028
- - 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:2352
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2352 -s 352
      4⤵
      Program crash
      PID:4812

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 412 -p 2352 -ip 2352
1⤵
PID:4992

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/2352-6-0x0000000076F52000-0x0000000076F53000-memory.dmp

Filesize
4KB

Download
memory/2352-15-0x00000000006F0000-0x00000000006F6000-memory.dmp

Filesize
24KB

Download
memory/2352-8-0x00007FFA99AF0000-0x00007FFA99CE5000-memory.dmp

Filesize
2.0MB

Download
memory/2352-5-0x00000000006F0000-0x00000000006F6000-memory.dmp

Filesize
24KB

Download
memory/2552-14-0x00000000004A0000-0x00000000004A6000-memory.dmp

Filesize
24KB

Download
memory/3028-9-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/3028-4-0x00000000021B0000-0x0000000002BB0000-memory.dmp

Filesize
10.0MB

Download
memory/3028-0-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/3028-10-0x00000000021B0000-0x0000000002BB0000-memory.dmp

Filesize
10.0MB

Download
memory/3028-1-0x0000000000500000-0x0000000000501000-memory.dmp

Filesize
4KB

Download
memory/3400-7-0x00007FFA99B8D000-0x00007FFA99B8E000-memory.dmp

Filesize
4KB

Download
memory/3400-3-0x0000000002590000-0x0000000002596000-memory.dmp

Filesize
24KB

Download
memory/3400-2-0x0000000002590000-0x0000000002596000-memory.dmp

Filesize
24KB

Download