tinba | 78c432bc6c1739ccf338cd389d69bdf89d58d2b2c70fcdad9170d53e9ce1dcfd

Analysis

max time kernel
118s
max time network
105s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
19/10/2024, 18:45

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General

Target
78c432bc6c1739ccf338cd389d69bdf89d58d2b2c70fcdad9170d53e9ce1dcfdN.exe
Size 34KB
Sample241019-xee3natfln
SHA256 78c432bc6c1739ccf338cd389d69bdf89d58d2b2c70fcdad9170d53e9ce1dcfd
MD5 459b0bfaf266b0d0744288b59f6c9c50
SHA1 4bd76ca90fe28f15f0fb42a9551901f9b9c982e8
SHA512 badf56fec5dbcf4cf7b870b6284b32d620e04398a10d33902b1eeb2928086014fc6103c556e0e7e59751dfb4eb1ef43935f3329a5c09e4d399bb78d0f1d8e899
SSDEEP 768:3p22qWFcy5XQ7lO41uirwA98p3MpkNBxd0cJWV6dy/x9J2:3pYoX58z1uirL98xMWnT0OQ9J2
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

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-1-5-21-4089630652-1596403869-279772308-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\B17B3987 = "C:\\Users\\Admin\\AppData\\Roaming\\B17B3987\\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/3124-0-0x0000000000400000-0x0000000000417000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
3360	2848	WerFault.exe	86

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	78c432bc6c1739ccf338cd389d69bdf89d58d2b2c70fcdad9170d53e9ce1dcfdN.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winver.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2848	winver.exe
2848	winver.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeShutdownPrivilege	3424	Explorer.EXE
Token: SeCreatePagefilePrivilege	3424	Explorer.EXE

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
2848	winver.exe

Suspicious use of UnmapMainImage 1 IoCs

pid	Process
3424	Explorer.EXE

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 3124 wrote to memory of 2848	3124	78c432bc6c1739ccf338cd389d69bdf89d58d2b2c70fcdad9170d53e9ce1dcfdN.exe	86
PID 3124 wrote to memory of 2848	3124	78c432bc6c1739ccf338cd389d69bdf89d58d2b2c70fcdad9170d53e9ce1dcfdN.exe	86
PID 3124 wrote to memory of 2848	3124	78c432bc6c1739ccf338cd389d69bdf89d58d2b2c70fcdad9170d53e9ce1dcfdN.exe	86
PID 3124 wrote to memory of 2848	3124	78c432bc6c1739ccf338cd389d69bdf89d58d2b2c70fcdad9170d53e9ce1dcfdN.exe	86
PID 2848 wrote to memory of 3424	2848	winver.exe	56
PID 2848 wrote to memory of 2648	2848	winver.exe	44

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
PID:2648

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of UnmapMainImage
PID:3424
- C:\Users\Admin\AppData\Local\Temp\78c432bc6c1739ccf338cd389d69bdf89d58d2b2c70fcdad9170d53e9ce1dcfdN.exe
  "C:\Users\Admin\AppData\Local\Temp\78c432bc6c1739ccf338cd389d69bdf89d58d2b2c70fcdad9170d53e9ce1dcfdN.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3124
- - 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:2848
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2848 -s 352
      4⤵
      Program crash
      PID:3360

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2848 -ip 2848
1⤵
PID:3132

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/2648-18-0x00007FFBA3350000-0x00007FFBA3351000-memory.dmp

Download

memory/2648-14-0x00000000009C0000-0x00000000009C6000-memory.dmp

Download

memory/2848-5-0x0000000002810000-0x0000000002816000-memory.dmp

Download

memory/2848-15-0x0000000002810000-0x0000000002816000-memory.dmp

Download

memory/2848-8-0x00007FFBA3130000-0x00007FFBA3325000-memory.dmp

Download

memory/2848-6-0x0000000077502000-0x0000000077503000-memory.dmp

Download

memory/3124-9-0x0000000000400000-0x0000000000417000-memory.dmp

Download

memory/3124-4-0x0000000002290000-0x0000000002C90000-memory.dmp

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memory/3124-0-0x0000000000400000-0x0000000000417000-memory.dmp

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memory/3124-10-0x0000000002290000-0x0000000002C90000-memory.dmp

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memory/3124-1-0x0000000002160000-0x0000000002161000-memory.dmp

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memory/3424-7-0x00007FFBA31CD000-0x00007FFBA31CE000-memory.dmp

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memory/3424-2-0x0000000000600000-0x0000000000606000-memory.dmp

Download

memory/3424-3-0x0000000000600000-0x0000000000606000-memory.dmp

Download

memory/3424-17-0x00007FFBA3360000-0x00007FFBA3361000-memory.dmp

Download