tinba | a8b35391493b0fb6f8ba6ab4c71946eab7040cb6cabf15ecedf698cc1dbac10c

Analysis

max time kernel
149s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
31-12-2024 11:59

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General

Target

JaffaCakes118_19db627b8604bee18beca5c511890f6c.exe
Size

89KB
MD5

19db627b8604bee18beca5c511890f6c
SHA1

32b22df29f2f402b953888c103fef5f8be2c2b95
SHA256

a8b35391493b0fb6f8ba6ab4c71946eab7040cb6cabf15ecedf698cc1dbac10c
SHA512

843241da27044d5d9d57692613b246b6cb7fd30eeb17ea534f6f77da83a90ad8bae8c14e12880aeab0ea9ffd2bb38de8067cea17403249a53f700e5f1646b639
SSDEEP

1536:kr+mFM2HXKZgixhIksu+XM5/HtAQ9Jox7e:m+4MJIkLZJNAQ9Jo9e

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-1-5-21-3756129449-3121373848-4276368241-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\8E5F0254 = "C:\\Users\\Admin\\AppData\\Roaming\\8E5F0254\\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/1200-0-0x0000000000400000-0x0000000000418000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
4788	2928	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	JaffaCakes118_19db627b8604bee18beca5c511890f6c.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winver.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2928	winver.exe
2928	winver.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeShutdownPrivilege	3500	Explorer.EXE
Token: SeCreatePagefilePrivilege	3500	Explorer.EXE

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
2928	winver.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 1200 wrote to memory of 2928	1200	JaffaCakes118_19db627b8604bee18beca5c511890f6c.exe	85
PID 1200 wrote to memory of 2928	1200	JaffaCakes118_19db627b8604bee18beca5c511890f6c.exe	85
PID 1200 wrote to memory of 2928	1200	JaffaCakes118_19db627b8604bee18beca5c511890f6c.exe	85
PID 1200 wrote to memory of 2928	1200	JaffaCakes118_19db627b8604bee18beca5c511890f6c.exe	85
PID 2928 wrote to memory of 3500	2928	winver.exe	56
PID 2928 wrote to memory of 2788	2928	winver.exe	49

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
PID:2788

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3500
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_19db627b8604bee18beca5c511890f6c.exe
  "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_19db627b8604bee18beca5c511890f6c.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1200
- - 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:2928
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2928 -s 352
      4⤵
      Program crash
      PID:4788

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 180 -p 2928 -ip 2928
1⤵
PID:1280

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/1200-0-0x0000000000400000-0x0000000000418000-memory.dmp

Filesize
96KB

Download
memory/1200-1-0x00000000005C0000-0x00000000005C1000-memory.dmp

Filesize
4KB

Download
memory/1200-10-0x00000000021B0000-0x0000000002BB0000-memory.dmp

Filesize
10.0MB

Download
memory/1200-9-0x0000000000400000-0x0000000000418000-memory.dmp

Filesize
96KB

Download
memory/1200-4-0x00000000021B0000-0x0000000002BB0000-memory.dmp

Filesize
10.0MB

Download
memory/2788-14-0x0000000000E10000-0x0000000000E16000-memory.dmp

Filesize
24KB

Download
memory/2928-5-0x00000000778B2000-0x00000000778B3000-memory.dmp

Filesize
4KB

Download
memory/2928-8-0x00007FFBCB2F0000-0x00007FFBCB4E5000-memory.dmp

Filesize
2.0MB

Download
memory/2928-12-0x0000000002900000-0x0000000002906000-memory.dmp

Filesize
24KB

Download
memory/2928-15-0x0000000002900000-0x0000000002906000-memory.dmp

Filesize
24KB

Download
memory/3500-6-0x00007FFBCB38D000-0x00007FFBCB38E000-memory.dmp

Filesize
4KB

Download
memory/3500-7-0x00007FFBCB38C000-0x00007FFBCB38D000-memory.dmp

Filesize
4KB

Download
memory/3500-2-0x0000000001350000-0x0000000001356000-memory.dmp

Filesize
24KB

Download
memory/3500-3-0x0000000001350000-0x0000000001356000-memory.dmp

Filesize
24KB

Download