tinba | 1a874a7dbdf0518485e8e7ce948cab32dac4fd88a9ca6fda05d3d843b6a9f717

Analysis

max time kernel
146s
max time network
141s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
08/01/2025, 06:38

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General

Target
JaffaCakes118_90cdc5e486043953f5d88bd1eec5a097.exe
Size 160KB
Sample250108-hd6rnayjf1
SHA256 1a874a7dbdf0518485e8e7ce948cab32dac4fd88a9ca6fda05d3d843b6a9f717
MD5 90cdc5e486043953f5d88bd1eec5a097
SHA1 2bd671372659a54229739ad6dc204425392cd405
SHA512 c54e6d3c577dfb75dbfe02b367dd829001974e4f81328cd003c92824ef54f07023191510fd692042509033471c60aacca447abd0eb9f706f615ca1c955feda2e
SSDEEP 1536:SEY+mFM2HXKZgi0Iksu+XM5/HtAQ9J6xph:ZY+4MiIkLZJNAQ9J6v
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
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-1-5-21-4050598569-1597076380-177084960-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\40E5586B = "C:\\Users\\Admin\\AppData\\Roaming\\40E5586B\\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/1092-0-0x0000000000400000-0x0000000000428000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
4796	3388	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_90cdc5e486043953f5d88bd1eec5a097.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winver.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
3388	winver.exe
3388	winver.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeShutdownPrivilege	3404	Explorer.EXE
Token: SeCreatePagefilePrivilege	3404	Explorer.EXE

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
3388	winver.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 1092 wrote to memory of 3388	1092	JaffaCakes118_90cdc5e486043953f5d88bd1eec5a097.exe	85
PID 1092 wrote to memory of 3388	1092	JaffaCakes118_90cdc5e486043953f5d88bd1eec5a097.exe	85
PID 1092 wrote to memory of 3388	1092	JaffaCakes118_90cdc5e486043953f5d88bd1eec5a097.exe	85
PID 1092 wrote to memory of 3388	1092	JaffaCakes118_90cdc5e486043953f5d88bd1eec5a097.exe	85
PID 3388 wrote to memory of 3404	3388	winver.exe	56
PID 3388 wrote to memory of 2836	3388	winver.exe	49

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
PID:2836

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3404
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_90cdc5e486043953f5d88bd1eec5a097.exe
  "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_90cdc5e486043953f5d88bd1eec5a097.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1092
- - 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:3388
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3388 -s 356
      4⤵
      Program crash
      PID:4796

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 3388 -ip 3388
1⤵
PID:464

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/1092-8-0x0000000000400000-0x0000000000428000-memory.dmp

Download

memory/1092-1-0x0000000002170000-0x0000000002171000-memory.dmp

Download

memory/1092-4-0x0000000002210000-0x0000000002C10000-memory.dmp

Download

memory/1092-0-0x0000000000400000-0x0000000000428000-memory.dmp

Download

memory/1092-9-0x0000000002210000-0x0000000002C10000-memory.dmp

Download

memory/2836-16-0x0000000000B60000-0x0000000000B66000-memory.dmp

Download

memory/2836-14-0x00007FFECCFED000-0x00007FFECCFEE000-memory.dmp

Download

memory/2836-13-0x0000000000B60000-0x0000000000B66000-memory.dmp

Download

memory/3388-5-0x00000000779D2000-0x00000000779D3000-memory.dmp

Download

memory/3388-7-0x00007FFECCF50000-0x00007FFECD145000-memory.dmp

Download

memory/3388-11-0x0000000000BA0000-0x0000000000BA6000-memory.dmp

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memory/3388-15-0x0000000000BA0000-0x0000000000BA6000-memory.dmp

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memory/3404-6-0x00007FFECCFED000-0x00007FFECCFEE000-memory.dmp

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memory/3404-2-0x0000000002510000-0x0000000002516000-memory.dmp

Download

memory/3404-3-0x0000000002510000-0x0000000002516000-memory.dmp

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