tinba | 7471eac326de9ce08f8f320b008f82e52e4dac2267ebd90620f96fdd83110972

Analysis

max time kernel
130s
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
11/10/2024, 03:34

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General

Target
331abe085de7f353800ce53135e81c36_JaffaCakes118.exe
Size 76KB
Sample241011-d47dnatbmc
SHA256 7471eac326de9ce08f8f320b008f82e52e4dac2267ebd90620f96fdd83110972
MD5 331abe085de7f353800ce53135e81c36
SHA1 1ee819a3fb9f85b5eec71df75b91cef840d2aa4e
SHA512 ae72e522f1ce0ce8c4fe2808c7eec934ab9c219a1e7dd931879c84f2cf20e876f519f823f50653368403ca91c7b4ec90f08a833b7971638c2a67bc3c6e160c26
SSDEEP 768:+HAl7xH0U2VFb8OaYS0a6L+nznGOevsCWg9nrC3Xybi9HW+C5c9JT:Rl7ln2HLPL+znGOe0CWgleHosHGm9JT
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

tinba banker discovery persistence trojan

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-1-5-21-2878641211-696417878-3864914810-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\59DDF5A3 = "C:\\Users\\Admin\\AppData\\Roaming\\59DDF5A3\\bin.exe"	winver.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1500	3972	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	331abe085de7f353800ce53135e81c36_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winver.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
3972	winver.exe
3972	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
3972	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 2684 wrote to memory of 3972	2684	331abe085de7f353800ce53135e81c36_JaffaCakes118.exe	86
PID 2684 wrote to memory of 3972	2684	331abe085de7f353800ce53135e81c36_JaffaCakes118.exe	86
PID 2684 wrote to memory of 3972	2684	331abe085de7f353800ce53135e81c36_JaffaCakes118.exe	86
PID 2684 wrote to memory of 3972	2684	331abe085de7f353800ce53135e81c36_JaffaCakes118.exe	86
PID 3972 wrote to memory of 3424	3972	winver.exe	56
PID 3972 wrote to memory of 3044	3972	winver.exe	51

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
PID:3044

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\331abe085de7f353800ce53135e81c36_JaffaCakes118.exe
  "C:\Users\Admin\AppData\Local\Temp\331abe085de7f353800ce53135e81c36_JaffaCakes118.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2684
- - 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:3972
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3972 -s 352
      4⤵
      Program crash
      PID:1500

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 204 -p 3972 -ip 3972
1⤵
PID:5056

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/2684-9-0x0000000000400000-0x0000000000416000-memory.dmp

Download

memory/2684-3-0x00000000024F0000-0x0000000002EF0000-memory.dmp

Download

memory/2684-0-0x00000000005C0000-0x00000000005C1000-memory.dmp

Download

memory/2684-10-0x00000000024F0000-0x0000000002EF0000-memory.dmp

Download

memory/3044-14-0x00000000005C0000-0x00000000005C6000-memory.dmp

Download

memory/3424-2-0x0000000002900000-0x0000000002906000-memory.dmp

Download

memory/3424-1-0x0000000002900000-0x0000000002906000-memory.dmp

Download

memory/3424-6-0x00007FFA6698D000-0x00007FFA6698E000-memory.dmp

Download

memory/3424-8-0x00007FFA66B20000-0x00007FFA66B21000-memory.dmp

Download

memory/3972-5-0x0000000077662000-0x0000000077663000-memory.dmp

Download

memory/3972-4-0x0000000000B60000-0x0000000000B66000-memory.dmp

Download

memory/3972-7-0x00007FFA668F0000-0x00007FFA66AE5000-memory.dmp

Download

memory/3972-15-0x0000000000B60000-0x0000000000B66000-memory.dmp

Download