tinba | 4e8a548120334ee5f80a5675b897fdeb86103cdb0f1f1b76f125522988f70707

Analysis

max time kernel
120s
max time network
96s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
07-12-2024 04:56

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General

Target

4e8a548120334ee5f80a5675b897fdeb86103cdb0f1f1b76f125522988f70707N.exe
Size

34KB
MD5

d2c8020a6a0c11a0cdf9219b91010a50
SHA1

1fe109cf1e128111537f745e8ec2ce53313e356f
SHA256

4e8a548120334ee5f80a5675b897fdeb86103cdb0f1f1b76f125522988f70707
SHA512

9806766528b87771da74a31a50f0f757e7e4c400e4144c508809beae4d87ec3b03b91e17a803f12404182ba1916c7656c0e58b7b80ac44d4d8d5be76b4c0c319
SSDEEP

768:ip22qWFcy5XQ7lO41uirwA98p3MpkNBxd0cJWV6dy/x9Jy:ipYoX58z1uirL98xMWnT0OQ9Jy

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-1-5-21-940901362-3608833189-1915618603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\50C0BF30 = "C:\\Users\\Admin\\AppData\\Roaming\\50C0BF30\\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/4984-0-0x0000000000400000-0x0000000000417000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2264	1972	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	4e8a548120334ee5f80a5675b897fdeb86103cdb0f1f1b76f125522988f70707N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winver.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1972	winver.exe
1972	winver.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeShutdownPrivilege	3544	Explorer.EXE
Token: SeCreatePagefilePrivilege	3544	Explorer.EXE

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
1972	winver.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4984 wrote to memory of 1972	4984	4e8a548120334ee5f80a5675b897fdeb86103cdb0f1f1b76f125522988f70707N.exe	84
PID 4984 wrote to memory of 1972	4984	4e8a548120334ee5f80a5675b897fdeb86103cdb0f1f1b76f125522988f70707N.exe	84
PID 4984 wrote to memory of 1972	4984	4e8a548120334ee5f80a5675b897fdeb86103cdb0f1f1b76f125522988f70707N.exe	84
PID 4984 wrote to memory of 1972	4984	4e8a548120334ee5f80a5675b897fdeb86103cdb0f1f1b76f125522988f70707N.exe	84
PID 1972 wrote to memory of 3544	1972	winver.exe	56
PID 1972 wrote to memory of 2596	1972	winver.exe	44

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
PID:2596

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3544
- C:\Users\Admin\AppData\Local\Temp\4e8a548120334ee5f80a5675b897fdeb86103cdb0f1f1b76f125522988f70707N.exe
  "C:\Users\Admin\AppData\Local\Temp\4e8a548120334ee5f80a5675b897fdeb86103cdb0f1f1b76f125522988f70707N.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4984
- - 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:1972
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1972 -s 356
      4⤵
      Program crash
      PID:2264

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1972 -ip 1972
1⤵
PID:3504

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/1972-5-0x0000000076F22000-0x0000000076F23000-memory.dmp

Filesize
4KB

Download
memory/1972-14-0x0000000000F30000-0x0000000000F36000-memory.dmp

Filesize
24KB

Download
memory/1972-11-0x0000000000F30000-0x0000000000F36000-memory.dmp

Filesize
24KB

Download
memory/1972-7-0x00007FF8A6110000-0x00007FF8A6305000-memory.dmp

Filesize
2.0MB

Download
memory/2596-13-0x0000000000F10000-0x0000000000F16000-memory.dmp

Filesize
24KB

Download
memory/3544-2-0x0000000001350000-0x0000000001356000-memory.dmp

Filesize
24KB

Download
memory/3544-6-0x00007FF8A61AD000-0x00007FF8A61AE000-memory.dmp

Filesize
4KB

Download
memory/3544-3-0x0000000001350000-0x0000000001356000-memory.dmp

Filesize
24KB

Download
memory/4984-4-0x00000000022F0000-0x0000000002CF0000-memory.dmp

Filesize
10.0MB

Download
memory/4984-8-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/4984-9-0x00000000022F0000-0x0000000002CF0000-memory.dmp

Filesize
10.0MB

Download
memory/4984-0-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/4984-1-0x0000000002160000-0x0000000002161000-memory.dmp

Filesize
4KB

Download