tinba | ee06107f8c49119e738ba90b64069985ebd2116f797a4e0272390b75380bbebf

Analysis

max time kernel
146s
max time network
127s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
30/08/2024, 23:24

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General

Target
bb57cae4af477abbadfbab5f445d89308b1527d741ce439dcad40fce2b56c9f7.exe
Size 34KB
Sample240830-3d56cascmc
SHA256 bb57cae4af477abbadfbab5f445d89308b1527d741ce439dcad40fce2b56c9f7
MD5 252b2cc4015380b95a9c56472ac66497
SHA1 1384570904352a4663f1c13934b2ebf9dd7fe047
SHA512 bec180c5aabed61810cd50d32191916decf811c6174bc5b2278a7f36ead58240f2391e43ef02d17a353dd545fe721296ee8203573dbab554698e6dc5df0f2e7b
SSDEEP 768:Hp22qWFcy5XQ7lO41uirwA98p3MpkNBxd0cJWV6dy/x9J2:HpYoX58z1uirL98xMWnT0OQ9J2
MD5 SHA1 SHA512 SSDEEP

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/3884-0-0x0000000000400000-0x0000000000417000-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-1-5-21-4182098368-2521458979-3782681353-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\F15D65B9 = "C:\\Users\\Admin\\AppData\\Roaming\\F15D65B9\\bin.exe"	winver.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
4912	3560	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	bb57cae4af477abbadfbab5f445d89308b1527d741ce439dcad40fce2b56c9f7.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winver.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
3560	winver.exe
3560	winver.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeShutdownPrivilege	3512	Explorer.EXE
Token: SeCreatePagefilePrivilege	3512	Explorer.EXE

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
3560	winver.exe

Suspicious use of UnmapMainImage 1 IoCs

pid	Process
3512	Explorer.EXE

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 3884 wrote to memory of 3560	3884	bb57cae4af477abbadfbab5f445d89308b1527d741ce439dcad40fce2b56c9f7.exe	85
PID 3884 wrote to memory of 3560	3884	bb57cae4af477abbadfbab5f445d89308b1527d741ce439dcad40fce2b56c9f7.exe	85
PID 3884 wrote to memory of 3560	3884	bb57cae4af477abbadfbab5f445d89308b1527d741ce439dcad40fce2b56c9f7.exe	85
PID 3884 wrote to memory of 3560	3884	bb57cae4af477abbadfbab5f445d89308b1527d741ce439dcad40fce2b56c9f7.exe	85
PID 3560 wrote to memory of 3512	3560	winver.exe	56
PID 3560 wrote to memory of 2668	3560	winver.exe	44

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
PID:2668

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of UnmapMainImage
PID:3512
- C:\Users\Admin\AppData\Local\Temp\bb57cae4af477abbadfbab5f445d89308b1527d741ce439dcad40fce2b56c9f7.exe
  "C:\Users\Admin\AppData\Local\Temp\bb57cae4af477abbadfbab5f445d89308b1527d741ce439dcad40fce2b56c9f7.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3884
- - 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:3560
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3560 -s 352
      4⤵
      Program crash
      PID:4912

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3560 -ip 3560
1⤵
PID:928

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

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Downloads

memory/2668-17-0x00007FFAC21F0000-0x00007FFAC21F1000-memory.dmp

Download

memory/2668-14-0x00000000006B0000-0x00000000006B6000-memory.dmp

Download

memory/3512-8-0x00007FFAC2200000-0x00007FFAC2201000-memory.dmp

Download

memory/3512-3-0x00000000005C0000-0x00000000005C6000-memory.dmp

Download

memory/3512-2-0x00000000005C0000-0x00000000005C6000-memory.dmp

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memory/3512-6-0x00007FFAC206D000-0x00007FFAC206E000-memory.dmp

Download

memory/3560-5-0x0000000077C52000-0x0000000077C53000-memory.dmp

Download

memory/3560-7-0x00007FFAC1FD0000-0x00007FFAC21C5000-memory.dmp

Download

memory/3560-12-0x00000000024F0000-0x00000000024F6000-memory.dmp

Download

memory/3560-15-0x00000000024F0000-0x00000000024F6000-memory.dmp

Download

memory/3884-0-0x0000000000400000-0x0000000000417000-memory.dmp

Download

memory/3884-9-0x0000000000400000-0x0000000000417000-memory.dmp

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memory/3884-10-0x00000000023C0000-0x0000000002DC0000-memory.dmp

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memory/3884-4-0x00000000023C0000-0x0000000002DC0000-memory.dmp

Download

memory/3884-1-0x0000000000570000-0x0000000000571000-memory.dmp

Download