tinba | 94c367c99e02ec58e09b32e971fc9434e81c1544849c00cdd59946b95b0f6f1d

Analysis

max time kernel
146s
max time network
100s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
19/09/2024, 03:52

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General

Target

94c367c99e02ec58e09b32e971fc9434e81c1544849c00cdd59946b95b0f6f1dN.exe
Size

34KB
MD5

1b532945e65c06060ae4ec9a9e94dab0
SHA1

039dc100ad1e9aac7bc1551540b9f85e906fd39c
SHA256

94c367c99e02ec58e09b32e971fc9434e81c1544849c00cdd59946b95b0f6f1d
SHA512

3f7eee730b79a88a30f1ed32b48a25f24514758fc3ae213bb4e253524bbb87e27f4d099d905f2d823ba2f8428e298522d36ae1603f8329946f25184114791bcc
SSDEEP

768:Ap22qWFcy5XQ7lO41uirwA98p3MpkNBxd0cJWV6dy/x9J2:ApYoX58z1uirL98xMWnT0OQ9J2

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

UPX packed file 1 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral2/memory/3300-0-0x0000000000400000-0x0000000000417000-memory.dmp	upx

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-1-5-21-523280732-2327480845-3730041215-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\201CD35B = "C:\\Users\\Admin\\AppData\\Roaming\\201CD35B\\bin.exe"	winver.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
3856	2096	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	94c367c99e02ec58e09b32e971fc9434e81c1544849c00cdd59946b95b0f6f1dN.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winver.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2096	winver.exe
2096	winver.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeShutdownPrivilege	3576	Explorer.EXE
Token: SeCreatePagefilePrivilege	3576	Explorer.EXE

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
2096	winver.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 3300 wrote to memory of 2096	3300	94c367c99e02ec58e09b32e971fc9434e81c1544849c00cdd59946b95b0f6f1dN.exe	83
PID 3300 wrote to memory of 2096	3300	94c367c99e02ec58e09b32e971fc9434e81c1544849c00cdd59946b95b0f6f1dN.exe	83
PID 3300 wrote to memory of 2096	3300	94c367c99e02ec58e09b32e971fc9434e81c1544849c00cdd59946b95b0f6f1dN.exe	83
PID 3300 wrote to memory of 2096	3300	94c367c99e02ec58e09b32e971fc9434e81c1544849c00cdd59946b95b0f6f1dN.exe	83
PID 2096 wrote to memory of 3576	2096	winver.exe	56
PID 2096 wrote to memory of 2588	2096	winver.exe	44

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
PID:2588

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3576
- C:\Users\Admin\AppData\Local\Temp\94c367c99e02ec58e09b32e971fc9434e81c1544849c00cdd59946b95b0f6f1dN.exe
  "C:\Users\Admin\AppData\Local\Temp\94c367c99e02ec58e09b32e971fc9434e81c1544849c00cdd59946b95b0f6f1dN.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3300
- - 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:2096
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2096 -s 352
      4⤵
      Program crash
      PID:3856

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2096 -ip 2096
1⤵
PID:1720

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/2096-6-0x0000000077C22000-0x0000000077C23000-memory.dmp

Filesize
4KB

Download
memory/2096-5-0x00000000013C0000-0x00000000013C6000-memory.dmp

Filesize
24KB

Download
memory/2096-8-0x00007FFEDF1B0000-0x00007FFEDF3A5000-memory.dmp

Filesize
2.0MB

Download
memory/2096-14-0x00000000013C0000-0x00000000013C6000-memory.dmp

Filesize
24KB

Download
memory/2588-13-0x0000000000CD0000-0x0000000000CD6000-memory.dmp

Filesize
24KB

Download
memory/3300-0-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/3300-1-0x0000000000490000-0x0000000000491000-memory.dmp

Filesize
4KB

Download
memory/3300-4-0x00000000021C0000-0x0000000002BC0000-memory.dmp

Filesize
10.0MB

Download
memory/3300-9-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/3576-3-0x0000000000C50000-0x0000000000C56000-memory.dmp

Filesize
24KB

Download
memory/3576-2-0x0000000000C50000-0x0000000000C56000-memory.dmp

Filesize
24KB

Download
memory/3576-7-0x00007FFEDF24D000-0x00007FFEDF24E000-memory.dmp

Filesize
4KB

Download